1ZR-FE ENGINE CONTROL  SFI SYSTEM  P1604  Startability Malfunction  


DESCRIPTION

This DTC is stored when the engine does not start even though the STA signal is input or when the engine takes a long time to start, and when the engine speed is low or the engine stalls just after the engine starts.

Using the GTS, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.

It is necessary to check if the vehicle ran out of fuel before performing troubleshooting, as this DTC is also stored when there is engine starting trouble due to running out of fuel.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P1604 Startability Malfunction Either of the following conditions is met:
·

The engine speed is below 500 rpm with the STA signal on for a certain amount of time (refer to the illustration below) (1 trip detection logic).

·

After the engine starts (engine speed is 500 rpm or more), the engine speed drops to 200 rpm or less within approximately 2 seconds (1 trip detection logic).


·

Engine assembly (excess friction, compression loss)

·

Starter assembly

·

Crankshaft position sensor

·

Camshaft position sensor

·

Engine coolant temperature sensor

·

Fuel pump

·

Fuel pump control system

·

Fuel line (fuel filter, pipes and hoses)

·

Fuel injector assembly

·

Throttle body assembly

·

Fuel pressure regulator

·

Battery

·

Drive plate and ring gear sub-assembly

·

Spark plug

·

Ignition coil assembly circuit

·

Intake system

·

Camshaft timing oil control valve assembly

·

Mass air flow meter sub-assembly

·

Air fuel ratio sensor

·

Valve timing

·

Fuel

·

Purge VSV

·

Intake valve

·

Engine immobiliser system

·

ECM


Does not come on DTC stored

A220316E09
0.314,1.64 1.192,1.824 0.878,0.184 10 Starting Time 1.276,0.37 1.960,0.554 0.684,0.184 10 (Seconds) 3.844,1.136 5.000,1.486 1.156,0.350 10 Region Indicating Malfunction 6.384,2.761 6.665,2.959 0.281,0.198 10 (°C) 1.43,2.26 1.553,2.437 0.123,0.177 10 2 1.892,2.78 2.132,2.936 0.239,0.156 10 -30 3.517,2.78 3.715,2.950 0.198,0.170 10 20 5.198,2.78 5.410,2.964 0.211,0.184 10 80 3.518,3.178 5.368,3.362 1.850,0.184 10 Engine Coolant Temperature

CAUTION / NOTICE / HINT

HINT:
·

DTC P1604

·

In contrast to normal malfunction diagnosis for components, circuits and systems, DTC P1604 is used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as starting difficulty.

As this DTC can be stored as a result of certain user actions, even if the DTC is output, if the customer makes no mention of problems, clear the DTC without performing any troubleshooting and return the vehicle to the customer.

·

As DTCs may be stored when an Active Test or learning is performed, make sure to clear the DTCs before returning the vehicle to the customer.

·

If any other DTCs are output, perform troubleshooting for those DTCs first.


·

DATA LIST / FREEZE FRAME DATA

·

When this Data List item "Immobiliser Communication" is OFF or "Immobiliser Fuel Cut" is ON, the engine cannot be started.

·

Read freeze frame data using the GTS. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.

·

When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

·

When confirming the freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.

·

Try to start the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and compare it with the freeze frame data.

·

If the malfunction does not recur, carefully check the vehicle conditions from when the malfunction occurred using freeze frame data.


·

PRECAUTIONS

·

When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.

·

If the same inspection or replacement procedure appears 2 times when performing an inspection procedure, it is not necessary to repeat the procedure the second time.




Malfunction Recurrence and Inspection Areas


a.

Freeze frame data exists, but the malfunction (starting difficulty) has not recurred and the malfunction conditions are unknown.

i.

The engine speed recorded in the freeze frame data is 0 rpm (the engine does not crank).

HINT:

One of the following problems may be present: battery depletion, excess engine friction, a starter malfunction or a crankshaft position sensor malfunction.


·

If the battery voltage is less than 6 V during cranking, there is a high probability that engine friction is abnormal.

·

If the battery voltage drops to 5 V or less when starting the engine, the battery may be malfunctioning.

·

If the battery voltage fluctuates while cranking the engine, it can be concluded that cranking is being performed. When the engine speed is 0 rpm, the crankshaft position sensor and/or an ECM may be malfunctioning.

A215383E51
0.133,0.091 4.289,0.274 4.156,0.184 10 When the engine speed for all 5 sets of freeze frame data is 0 rpm: 0.306,1.001 1.573,1.518 1.267,0.517 10 Was the minimum battery voltage 5 V or higher? 2.267,1.001 3.479,1.546 1.211,0.545 10 Was the minimum battery voltage 6 V or higher? 4.061,1.001 5.244,1.379 1.184,0.378 10 Did the battery voltage fluctuate? 5.674,1.001 7.084,1.366 1.410,0.364 10 Inspect the crankshaft position sensor 0.866,3.073 2.161,3.423 1.295,0.350 10 Recharge or replace the battery 2.976,2.933 4.178,3.297 1.202,0.364 10 Inspect the engine assembly 5.209,2.942 6.393,3.276 1.184,0.334 10 Inspect the starter assembly 0.825,4.746 1.166,4.898 0.341,0.151 10 YES 0.825,5.223 1.082,5.388 0.258,0.165 10 NO



ii.

All engine speeds recorded in the freeze frame data are between 60 and 250 rpm (the engine cranks but there is no combustion).

HINT:

If the engine speed is between 60 and 250 rpm (no initial combustion), there may be a wiring problem or a complete failure of an ignition or fuel system part.


·

Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and the engine may not be able to be started.


A215384E28
0.082,0.086 2.821,0.270 2.739,0.184 10 Engine speed is between 60 and 250 rpm: 0.32,0.955 1.906,1.499 1.586,0.545 10 Has an ignition system DTC (IGF, NE, VVT, etc.) been output? 2.94,0.955 4.290,1.305 1.350,0.350 10 Is the engine coolant temperature normal? 5.294,0.955 6.755,1.166 1.461,0.211 10 Inspect the fuel system 1.483,2.622 3.139,3.139 1.656,0.517 10 Repair the malfunctioning areas indicated by the output DTCs 5.364,2.636 6.631,3.181 1.267,0.545 10 Replace the engine coolant temperature sensor 0.922,4.471 1.245,4.627 0.323,0.156 10 YES 0.922,5.06 1.189,5.216 0.267,0.156 10 NO


iii.

The engine speed recorded in the freeze frame data is 250 rpm or higher (the initial combustion and starter turn off timing is too late).

HINT:

If the engine speed is 250 rpm or higher (combustion occurs but the initial combustion and starter turn off timing is too late), the fuel injection volume is often incorrect (too low or too high) and determining the cause of the malfunction is often difficult.


·

Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and engine starting trouble may occur.

·

If Long FT #1 is incorrect, there may be a fuel supply problem due to the injectors or fuel pump being clogged, etc.

·

If the engine cranking speed is too high, compression loss may have occurred due to carbon interfering with the valve operation.

A215383E64
0.094,0.063 2.333,0.25 2.24,0.188 10 Engine speed is 250 rpm or higher: 0.323,1.021 1.667,1.417 1.344,0.396 10 Was "Coolant Temp" normal? 2.313,1.021 3.458,1.625 1.146,0.604 10 Was "Long FT" normal (within +/- 15%)? 4.156,1.021 5.156,1.542 1,0.521 10 Was the engine cranking speed too high? 5.792,1.021 6.969,1.385 1.177,0.365 10 Inspect the engine assembly 0.917,2.948 2.177,3.521 1.26,0.573 10 Replace the engine coolant temperature sensor 2.969,2.844 4.448,3.417 1.479,0.573 10 Inspect the fuel injector assemblies and fuel pump 5.219,2.948 6.677,3.375 1.458,0.427 10 Inspect the fuel system and intake system 0.823,4.76 1.146,4.948 0.323,0.188 10 YES 0.833,5.229 1.177,5.5 0.344,0.271 10 NO




b.

When the malfunction (starting difficulty) can be reproduced, or malfunction conditions are known, perform the following inspections ("Problem symptoms" and "Systems to inspect")

i.

Problem symptoms

1.

The engine does not crank.

HINT:

The starter is normal if a noise that indicates the starter pinion gear is extending is heard. The battery may be fully depleted or there may be excess engine friction.


2.

The engine cranking speed is abnormal.

HINT:

If the engine cranking speed is too high (for example, 300 rpm or higher with no combustion), compression loss may have occurred because carbon interfered with valve operation, etc.


3.

There is no initial combustion.

HINT:

If there is no initial combustion, there is probably a wiring problem or an ignition or fuel system part malfunction.


4.

The engine stalls after starter turn off.

HINT:

If the engine stalls after starter turn off, the air fuel ratio may be incorrect or the VVT may have a problem returning.


5.

Initial combustion and starter turn off occur late.

HINT:

If initial combustion and starter turn off occur late, the fuel injection volume is probably incorrect (too low or too high).


HINT:

Causes of fuel system malfunctions according to conditions present at the time of the malfunction.

·

When 2 to 3 minutes have elapsed after stopping the engine: Fuel pressure loss due to the pressure regulator failing to maintain the fuel pressure.

·

When 15 to 120 minutes have elapsed after stopping the engine: Problem with injector fuel seal.

·

When a long time has elapsed after stopping the engine: Pressure regulator is stuck open.





ii.

Systems to inspect.

1.

Intake system

2.

Ignition system

3.

Fuel system





INSPECTION FLOW


a.

Freeze frame data exists, but the malfunction (starting difficulty) has not recurred and the malfunction conditions are unknown.

Freeze Frame Data Item Result Suspected Area Procedure
Engine Speed 0 rpm (no engine cranking at all)
·

Battery fully depleted

·

Engine assembly (excess friction)

·

Starter assembly

·

Crankshaft position sensor

·

ECM


5 to 9
60 to 250 rpm (engine cranks but no initial combustion*1)
·

Fuel pump control system

·

Ignition system

·

Engine coolant temperature sensor

·

Fuel injection system


10 to 14
250 rpm or higher (combustion occurs but initial combustion and starter turn off*2 occur late)
·

Engine assembly (compression loss)

·

Fuel injection system

·

Fuel pump control system


15 to 23

HINT:
·

*1: First combustion after cranking begins.

·

*2: Condition when engine speed increases and starter can be turned off.




b.

When the malfunction (starting difficulty) can be reproduced, or when malfunction conditions are known.

i.

Problem symptoms

Problem Symptom Suspected Area Suspected Component Procedure
The engine does not crank Battery malfunction
·

Battery fully depleted


26 to 29, and 35 to 36
Starting system
·

Starter assembly (includes pinion gear wear or tooth damage)

·

Starting system


Engine assembly
·

Engine assembly (excess friction)

·

Drive plate and ring gear sub-assembly wear or tooth damage


Cranking speed too low Battery malfunction
·

Battery fully depleted


37 to 39
Starting system
·

Starter assembly


Engine assembly
·

Engine assembly (excess friction)


Cranking speed too high Engine assembly
·

Engine assembly (compression loss)


There is no initial combustion Fuel supply problem
·

Cannot maintain pressure due to pressure regulator malfunction

·

Fuel injector assembly leak

·

Fuel leak from fuel line

·

Fuel pump control system

·

Fuel pump


41 to 54
Ignition system malfunction
·

Spark plug

·

Crankshaft position sensor

·

Ignition coil assembly


Engine stalls after starter turn off Air suction
·

Intake system connections


30 to 34 and 40
Deposits in throttle body assembly
·

Throttle body assembly


VVT valve does not return properly
·

Camshaft timing oil control valve assembly


Mass air flow meter malfunction
·

Mass air flow meter sub-assembly


Initial combustion and starter turn off occur late Engine coolant temperature sensor malfunction
·

Engine coolant temperature sensor


55 to 67 and 74
Mass air flow meter sub-assembly malfunction
·

Mass air flow meter sub-assembly


Abnormal air fuel learning value
·

Air fuel ratio sensor


Deviation from fuel injection characteristics
·

Fuel injector assembly


Wet-fouled or dry-fouled spark plug
·

Spark plug


Lack of fuel pressure
·

Pressure regulator

·

Fuel pump

·

Fuel pump control system




ii.

Systems to inspect.

Troubleshooting by System Suspected Area Suspected Component Procedure
Fuel system troubleshooting A Abnormal air fuel ratio learning value
·

Fuel injector assembly


87 to 94
95 to 102
Rough idling
·

Crankshaft position sensor


Abnormal fuel pressure
·

Fuel

·

Fuel leak from fuel line

·

Fuel pump

·

Pressure regulator


Fuel system troubleshooting B Abnormal concentration of HC in intake manifold
·

Purge VSV system

·

Fuel injector assembly


103 to 104
Fuel system troubleshooting C Injection signal system malfunction
·

Fuel injector assembly

·

Crankshaft position sensor

·

Camshaft position sensor

·

ECM


69 to 73
Intake system troubleshooting Difference between ISC target value and opening angle when idling
·

Engine assembly (compression loss)

·

Valve timing

·

Engine coolant temperature sensor

·

ECM


84 to 86
105 to 108
Ignition system troubleshooting Camshaft and/or crankshaft position sensor signal malfunction
·

Crankshaft position sensor system (including sensor installation)

·

Camshaft position sensor system (including sensor installation)

·

ECM


75 to 83
109 to 117




NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.


PROCEDURE

1.CHECK ANY OTHER DTCS OUTPUT AND RECORD FREEZE FRAME DATA (IN ADDITION TO DTC P1604)
A103809E78
2.396,0.052 3.333,0.25 0.938,0.198 10 DTC is stored 1.344,1.01 2.167,1.25 0.823,0.24 10 0.5 seconds 0.344,1.021 1.167,1.25 0.823,0.229 10 0.5 seconds 0.333,2.802 2.417,3 2.083,0.198 10 Freeze frame data recorded point 2.26,1.01 3.083,1.25 0.823,0.24 10 0.5 seconds 0.219,2.469 0.417,2.667 0.198,0.198 10 1 1.177,2.469 1.417,2.667 0.24,0.198 10 2 2.125,2.469 2.333,2.667 0.208,0.198 10 3 2.719,2.646 2.917,2.833 0.198,0.188 10 4 3.073,2.469 3.25,2.667 0.177,0.198 10 5

a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


e.

Read the DTCs and record the Freeze Frame Data.

Powertrain > Engine and ECT > Trouble Codes
50001 234
HINT:
·

This freeze frame data shows the actual engine conditions when engine starting trouble occurred.

·

When confirming the freeze frame data, be sure to check all 5 data sets of freeze frame data.

·

The fourth set of freeze frame data is the data recorded when then the DTC is stored.




Result:
Result Proceed to
DTC P1604 is output A
DTC P1604 and other DTCs are output B



A

2.CHECK ENGINE IMMOBILISER SYSTEM

B

2.CHECK ENGINE IMMOBILISER SYSTEM
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Immobiliser Fuel Cut.

Powertrain > Engine and ECT > Data List
Tester Display
Immobiliser Fuel Cut
50003 234 505

e.

Read the value displayed on the GTS.

OK:

Immobiliser Fuel Cut is OFF


HINT:
·

If the engine is started immediately after reconnecting the battery terminal, the engine may stall immediately after it starts due to the intercommunication process between each ECU. For this reason, when starting the engine after reconnecting the battery terminal, first turn the ignition switch to ON and then wait several seconds for the communication process to complete before starting the engine.

·

When this operation causes DTC P1604 to be stored, this is due to normal operation of the immobiliser system and does not indicate a malfunction, so clear the DTC and return the vehicle to the customer.




Result:
Proceed to
OK
NG



OK

3.CHECK MALFUNCTION CONDITION

NG

3.CHECK MALFUNCTION CONDITION
a.

Confirm the problem symptoms.


Result:
Result Proceed to
Freeze frame data exists, but the starting difficulty cannot be reproduced and it is unknown what kind of starting difficulty occurred A
The problem symptoms can be reproduced, or the malfunction conditions are known B



A

4.READ FREEZE FRAME DATA

B

25.CONFIRM PROBLEM SYMPTOM
4.READ FREEZE FRAME DATA
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

Result:
Freeze Frame Data Item Suspected Area Proceed to
Engine Speed Battery Voltage
All 5 sets of freeze frame data are 0 rpm (no engine cranking at all) Minimum voltage is less than 5 V Battery fully depleted A
Minimum voltage is 5 V or higher
·

Starter assembly malfunction

·

Crankshaft position sensor system

·

Excess engine friction

·

ECM


B
60 to 250 rpm (engine cranks but no initial combustion) -
·

Fuel pump control system

·

Ignition system

·

Engine coolant temperature sensor

·

Fuel injection system


C
250 rpm or higher (combustion occurs but initial combustion and starter turn off occur late) -
·

Engine assembly

·

Engine coolant temperature sensor

·

Fuel injection system

·

Fuel pump control system


D


Result:
Freeze Frame Data Item Suspected Area Proceed to
Low Rev for Eng Start
ON
·

Intake system connections

·

Throttle body assembly

·

Camshaft timing oil control valve assembly

·

Mass air flow meter sub-assembly


E


HINT:
·

When DTC P1604 is stored, either "Engine Start Hesitation"*1 or "Low Rev for Eng Start"*2 in the Freeze Frame Data will be ON. If "Low Rev for Eng Start" is ON, proceed to E.

·

*1: This value turns ON when the engine speed does not reach a certain value for a certain period of time when starting the engine.

·

*2: This value turns ON when the engine stalls immediately after starting the engine. If "Low Rev for Eng Start" is ON, as there is a possibility that the low engine speed or engine stall was caused by the user, confirm the following freeze frame data items.

·

Immobiliser Fuel Cut

·

Engine Speed (Starter Off)

·

Shift SW Status (R, D Range)






A

CHARGE OR REPLACE BATTERY

B

5.READ FREEZE FRAME DATA

C

10.READ FREEZE FRAME DATA

D

15.READ FREEZE FRAME DATA

E

30.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
5.READ FREEZE FRAME DATA
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

Result:
Freeze Frame Data Item Result Suspected Area Proceed to
Battery Voltage Minimum voltage is 6 V or higher and voltage does not fluctuate*1 Starter system A
Minimum voltage is 6 V or higher and voltage fluctuates*2, *3
·

Crankshaft position sensor system

·

ECM


B
Minimum voltage is 5 to 6 V*4
·

Excess engine friction

·

Battery fully depleted


C


HINT:
A217930E05
0.969,0.021 2.219,0.188 1.25,0.167 10 Freeze Frame Data 0.969,1.75 2.219,1.917 1.25,0.167 10 Freeze Frame Data 0.167,0.198 0.781,0.792 0.615,0.594 10 Voltage does not Fluctuate 0.125,2.073 0.802,2.531 0.677,0.458 10 Voltage Fluctuates

·

*1: The 5 sets of freeze frame data show approximately the same battery voltage.

·

*2: The 5 sets of freeze frame data show different battery voltages.

·

*3: If the voltage fluctuates, it can be determined that cranking is being performed. When the engine speed is 0 rpm, the crankshaft position sensor system and/or the ECM may be malfunctioning.

·

*4: There may be excess engine friction. Make sure that the crankshaft rotates smoothly when turning it by hand. Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.





A

B

6.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

C

CHECK AND REPAIR ENGINE ASSEMBLY OR BATTERY

6.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
a.

Check the tightening and installation condition of the crankshaft position sensor bolt.


b.

Check the connection of the crankshaft position sensor connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

7.INSPECT CRANKSHAFT POSITION SENSOR

NG

SECURELY REINSTALL SENSOR

7.INSPECT CRANKSHAFT POSITION SENSOR
a.

Disconnect the crankshaft position sensor connector.


b.

Check for oil on the connector terminals.

OK:

No oil on the terminals.



Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

NG

8.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
a.

Check the harnesses and connectors, referring to DTC P0335 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0335

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

9.REPLACE CRANKSHAFT POSITION SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

10.READ FREEZE FRAME DATA
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

Result:
Freeze Frame Data Item Suspected Area Proceed to
Coolant Temp, Intake Air Coolant Temp Fuel Pump / Speed Status
Difference between Coolant Temp and Intake Air is 10°C (18°F) or higher*1 Coolant Temp is 125°C (257°F) or higher, or less than ambient temperature*3 by 15°C (27°F) or higher - Engine coolant temperature sensor A
Other than above All 5 sets of freeze frame data are ON - B
At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system C
Difference between Coolant Temp and Intake Air is less than 10°C (18°F)*2 - At least 1 of the 5 sets of freeze frame data is OFF Fuel pump control system
All 5 sets of freeze frame data are ON - B


HINT:
·

*1: A long time had not elapsed after stopping the engine.

·

*2: A long time had elapsed after stopping the engine.

·

*3: Use an actual ambient temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected.





A

B

11.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)

C

11.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
A194132C04
0.281,1.938 0.708,2.198 0.427,0.26 1.063,3.052 1.51,2.656 false 0.188,0.115 0.385,0.292 0.198,0.177 10 *a 0.385,1.99 0.792,2.271 0.406,0.281 10 L20 0.938,3.104 1.281,3.302 0.344,0.198 10 B
*a Front view of wire harness connector
(to Fuel Pump)


a.

Connect the GTS to the DLC3.


b.

Disconnect the fuel pump connector.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

f.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
L20-4 (B) - Body ground Active Test is being performed 11 to 14 V


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

12.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)

NG

12.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)
a.

Disconnect the ECM connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
B56-86 (#10) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-85 (#20) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-84 (#30) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-83 (#40) - B56-46 (E01) Ignition switch ON 11 to 14 V


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

13.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)

NG

13.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result:
Result Proceed to
Fuel leakage or signs of fuel leakage are present A
No fuel leakage or signs of fuel leakage B


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.

·

Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.





A

REPAIR OR REPLACE FUEL LINE

B

14.CHECK FUEL SYSTEM
14.CHECK FUEL SYSTEM
a.

Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck.

Result:
Result Proceed to
There is foreign matter or signs that fuel pump was stuck A
There is no foreign matter and no signs that fuel pump was stuck B


HINT:

If there is foreign matter such as iron particles around the fuel pump, fuel pump filter or inside the fuel tank, remove the foreign matter.




A

REPAIR OR REPLACE FUEL SYSTEM

B

24.PERFORM SIMULATION TEST
15.READ FREEZE FRAME DATA
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

Result:
Freeze Frame Data Item Suspected Area Proceed to
Coolant Temp, Intake Air Coolant Temp Long FT #1 Engine Speed
Difference between Coolant Temp and Intake Air is 10°C (18°F) or higher*1 Coolant Temp is 125°C (257°F) or higher, or less than ambient temperature*4 by 15°C (27°F) or higher - - Engine coolant temperature sensor A
Other than above -15% or less, or 15% or higher -
·

Fuel pump control system

·

Fuel injector assembly


B
-15 to 15% Minimum speed is 300 rpm or higher*3 Engine assembly C
Minimum speed is less than 300 rpm
·

Fuel system

·

Intake air system


D
Difference between Coolant Temp and Intake Air is less than 10°C (18°F)*2 - -15% or less, or 15% or higher -
·

Fuel pump control system

·

Fuel injector assembly


B
-15 to 15% Minimum speed is 300 rpm or higher*3 Engine assembly C
Minimum speed is less than 300 rpm
·

Fuel system

·

Intake air system


D


HINT:
·

*1: A long time had not elapsed after stopping the engine.

·

*2: A long time had elapsed after stopping the engine.

·

*3: Compression loss may have occurred in the engine assembly.

·

*4: Use an actual ambient temperature estimated from the Initial Intake Air, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected.





A

B

16.INSPECT FUEL INJECTOR ASSEMBLY

C

CHECK AND REPAIR ENGINE ASSEMBLY

D

18.READ FREEZE FRAME DATA
16.INSPECT FUEL INJECTOR ASSEMBLY
a.

Check that no carbon is stuck to the fuel injector assembly.

OK:

No carbon present.



Result:
Proceed to
OK
NG



OK

17.CHECK FUEL SYSTEM

NG

REPLACE FUEL INJECTOR ASSEMBLY

17.CHECK FUEL SYSTEM
a.

Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter and inside the fuel tank), and for signs that the fuel pump was stuck.

Result:
Result Proceed to
There is foreign matter or signs that fuel pump was stuck A
There is no foreign matter and no signs that fuel pump was stuck B


HINT:

If there is foreign matter such as iron particles around the fuel pump, fuel pump filter or inside the fuel tank, remove the foreign matter.




A

REPAIR OR REPLACE FUEL SYSTEM

B

24.PERFORM SIMULATION TEST
18.READ FREEZE FRAME DATA
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Using the GTS, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>FREEZE FRAME DATA

Result:
Freeze Frame Data Item Result Suspected Area Proceed to
Coolant Temp Engine coolant temperature is 40°C (104°F) or less*1 Pressure regulator assembly A
Engine coolant temperature is 90°C (194°F) or higher*2
Engine coolant temperature is 40 to 90°C (104 to 194°F)*3 Fuel injector assembly B


HINT:
·

*1: If the engine coolant temperature is 40°C [104°F] or less (after the engine is stopped and the vehicle is not driven for a long period of time), the pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*2: If the engine coolant temperature is 90°C [194°F] or higher (2 to 5 minutes have passed after stopping the engine), there may be a problem with the pressure regulator failing to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*3: If the engine coolant temperature is 40 to 90°C [104 to 194°F] (15 to 120 minutes have passed after stopping the engine), there may be fuel leaking from a fuel injector.





A

19.CHECK FUEL PRESSURE

B

20.INSPECT FUEL INJECTOR ASSEMBLY
19.CHECK FUEL PRESSURE
HINT:

For the fuel pressure inspection, refer to the following procedures.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION


a.

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Standard:

147 kPa (1.5 kgf/cm2, 21 psi) or higher (5 minutes after stopping the engine)


HINT:

If the engine cannot be started, read the values after cranking the engine.



Result:
Result Proceed to
Abnormal A
Normal B



A

REPLACE FUEL PRESSURE REGULATOR ASSEMBLY

B

24.PERFORM SIMULATION TEST
20.INSPECT FUEL INJECTOR ASSEMBLY
a.

Clean the inside of the intake manifold with compressed air.


b.

After stopping the engine, measure the HC concentration inside the intake manifold for 15 minutes.

Result:
Result Proceed to
4000 ppm or higher A
Less than 4000 ppm B


HINT:

If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.




A

21.INSPECT FUEL INJECTOR ASSEMBLY

B

22.INSPECT THROTTLE BODY ASSEMBLY
21.INSPECT FUEL INJECTOR ASSEMBLY
a.

Inspect the fuel injector assemblies.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL INJECTOR>INSPECTION


Result:
Proceed to
OK
NG



OK

22.INSPECT THROTTLE BODY ASSEMBLY

NG

REPLACE FUEL INJECTOR ASSEMBLY

22.INSPECT THROTTLE BODY ASSEMBLY
a.

Check if carbon is in the air flow passage.

Result:
Result Proceed to
No carbon present A
Carbon in passage B




A

23.CHECK INTAKE SYSTEM

B

CLEAN OR REPLACE THROTTLE BODY ASSEMBLY

23.CHECK INTAKE SYSTEM
a.

Check the intake system for vacuum leak.

Click hereEngine / Hybrid System>1ZR-FE INTAKE / EXHAUST>INTAKE SYSTEM>ON-VEHICLE INSPECTION

OK:

No leak in intake system.



Result:
Proceed to
OK
NG



OK

24.PERFORM SIMULATION TEST

NG

REPAIR OR REPLACE INTAKE SYSTEM

24.PERFORM SIMULATION TEST
a.

Check if the engine can be started.


Result:
Result Proceed to
Engine can be started A
Engine cannot be started B



A

END

B

25.CONFIRM PROBLEM SYMPTOM
25.CONFIRM PROBLEM SYMPTOM
a.

Confirm the problem symptoms.

HINT:

The problem symptoms below can be determined by reading the freeze frame data.


Result:
Problem Symptom Suspected Area Proceed to
The engine does not crank
·

Battery fully depleted

·

Starter assembly (includes pinion gear wear or teeth damage)

·

Starter system

·

Engine assembly (excess friction)

·

Drive plate and ring gear sub-assembly wear or teeth damage


A
Abnormal cranking speed
·

Battery fully depleted

·

Starter assembly

·

Engine assembly (excess friction, compression loss)


B
There is no initial combustion (combustion does not occur even once)*1
·

Pressure regulator assembly fuel pressure maintenance

·

Fuel injector assembly leak

·

Fuel leak from fuel line

·

Fuel pump control system

·

Fuel pump

·

Spark plug

·

Crankshaft position sensor system

·

Ignition coil assembly system


C
The engine stalls after starter turn off (engine stalls immediately after the first time the engine speed increases)*2
·

Intake system connections

·

Throttle body assembly

·

Camshaft timing oil control valve assembly

·

Mass air flow meter sub-assembly


D
The initial combustion and starter turn off occur late*3
·

Engine coolant temperature sensor

·

Mass air flow meter sub-assembly

·

Air fuel ratio sensor

·

Heated oxygen sensor

·

Fuel injector assembly

·

Spark plug

·

Pressure regulator assembly

·

Fuel pump

·

Fuel pump control system


E


HINT:
·

If there is hesitation (cranking speed is slow and combustion occurs before passing TDC) during the initial cranking period, the battery charge may be insufficient or the starter may be malfunctioning.

·

*1: If there is no initial combustion, a wire harness may be malfunctioning, or the ignition or fuel system may be malfunctioning.

·

*2: If the engine stalls after starter turn off, the air fuel ratio may be incorrect or the camshaft timing oil control valve may have a problem returning.

·

*3: If the initial combustion and starter turn off occur late, the fuel injection volume may be incorrect (too low or too high).





A

26.PERFORM SIMULATION TEST

B

37.PERFORM SIMULATION TEST

C

41.INSPECT FUEL INJECTOR ASSEMBLY

D

30.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

E

55.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
26.PERFORM SIMULATION TEST
a.

When cranking the engine, check for a noise indicating that the starter pinion gear is extending, and check that the starter pinion gear is not spinning freely.

Result:
Problem Symptom Suspected Area Proceed to
A noise indicating that the starter pinion gear is extending is heard and the starter pinion gear is not spinning freely.*
·

Battery

·

Excess engine friction

·

Starter assembly


A
A noise indicating that the starter pinion gear is extending is heard but the starter pinion gear is spinning freely.
·

Drive plate and ring gear sub-assembly

·

Starter assembly


B
A noise indicating that the starter pinion gear is extending is not heard
·

Battery

·

Starter assembly

·

Starter system


C


HINT:

*: The battery may be fully depleted or there may be excess engine friction.





A

27.INSPECT BATTERY

B

29.INSPECT STARTER ASSEMBLY (STARTER PINION GEAR)

C

35.INSPECT BATTERY
27.INSPECT BATTERY

Result:
Proceed to
OK
NG



OK

28.CHECK ENGINE ASSEMBLY

NG

CHARGE OR REPLACE BATTERY

28.CHECK ENGINE ASSEMBLY
a.

Check that the crankshaft rotates smoothly when rotating it by hand.

OK:

Crankshaft rotates smoothly.


HINT:

Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.



Result:
Proceed to
OK
NG



OK

NG

REPAIR OR REPLACE ENGINE ASSEMBLY

29.INSPECT STARTER ASSEMBLY (STARTER PINION GEAR)
a.

Remove the starter assembly.

Click hereEngine / Hybrid System>1ZR-FE STARTING>STARTER>REMOVAL


b.

Check for starter pinion gear wear and damage.

OK:

There is no wear or damage.



Result:
Proceed to
OK
NG



OK

REPLACE DRIVE PLATE AND RING GEAR SUB-ASSEMBLY

NG

REPLACE STARTER ASSEMBLY

30.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
a.

Inspect the mass air flow meter sub-assembly.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>MASS AIR FLOW METER>ON-VEHICLE INSPECTION


Result:
Proceed to
OK
NG



OK

31.CHECK INTAKE SYSTEM

NG

40.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
31.CHECK INTAKE SYSTEM
a.

Check for air leaks in the intake system (vacuum hose disconnection, cracks, damaged gaskets, etc.).

Click hereEngine / Hybrid System>1ZR-FE INTAKE / EXHAUST>INTAKE SYSTEM>ON-VEHICLE INSPECTION

HINT:
·

If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake manifold increases and the air suction noise becomes louder.

·

If Short FT #1 and Long FT #1 are largely different from the normal values (differ by more than 15%) when idling (intake air volume is small) and almost the same as the normal values when racing the engine (for example, when maintaining a speed of 3000 rpm) (intake air volume is high), air leakage may be present.



OK:

There are no air leaks.



Result:
Proceed to
OK
NG



OK

32.INSPECT THROTTLE BODY ASSEMBLY

NG

REPAIR OR REPLACE INTAKE SYSTEM

32.INSPECT THROTTLE BODY ASSEMBLY
a.

Disconnect the throttle body assembly connector.

HINT:

When the connector is disconnected, the vehicle enters fail-safe mode and the throttle valve opening angle is 4 to 7°.



b.

Crank the engine and check that it starts.

Result:
Result Proceed to
Engine starts A
Engine does not start B


HINT:

When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear the DTCs.




A

33.INSPECT THROTTLE BODY ASSEMBLY

B

34.PERFORM ACTIVE TEST USING GTS (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)
33.INSPECT THROTTLE BODY ASSEMBLY
a.

Check if carbon is in the air flow passage.

OK:

No carbon present.



Result:
Proceed to
OK
NG



OK

34.PERFORM ACTIVE TEST USING GTS (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)

NG

REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY ASSEMBLY

34.PERFORM ACTIVE TEST USING GTS (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)
a.

Operate the VVT system through the Active Test, and check if the VVT system is operating normally.

i.

Perform the Active Test, referring to DTC P0011 inspection procedure (VVT system for intake camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0011


ii.

Perform the Active Test, referring to DTC P0014 inspection procedure (VVT system for exhaust camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0014

Result:
Result Proceed to
NG A
OK B
*


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.

·

*: From step 68, perform intake system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94).






A

REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT)

B

68.CHECK MALFUNCTION CONDITION
35.INSPECT BATTERY

Result:
Proceed to
OK
NG



OK

36.INSPECT STARTER ASSEMBLY

NG

CHARGE OR REPLACE BATTERY

36.INSPECT STARTER ASSEMBLY
a.

Inspect the starter assembly.

Click hereEngine / Hybrid System>1ZR-FE STARTING>STARTER>INSPECTION


Result:
Proceed to
OK
NG



OK

NG

REPLACE STARTER ASSEMBLY

37.PERFORM SIMULATION TEST
a.

Check the cranking speed.

Result:
Problem Symptom Suspected Area Proceed to
Cranking speed is slow (100 rpm or less)
·

Battery

·

Starter assembly

·

Excess engine friction


A
Cranking speed is fast (300 rpm or higher)* Engine compression loss B


HINT:

*: If the cranking speed is fast, there may be compression loss.




A

38.INSPECT BATTERY

B

CHECK AND REPAIR ENGINE ASSEMBLY

38.INSPECT BATTERY

Result:
Proceed to
OK
NG



OK

39.CHECK ENGINE ASSEMBLY

NG

CHARGE OR REPLACE BATTERY

39.CHECK ENGINE ASSEMBLY
a.

Check that the crankshaft rotates smoothly when rotating it by hand.

OK:

Crankshaft rotates smoothly.


HINT:

Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.



Result:
Proceed to
OK
NG



OK

NG

CHECK AND REPLACE ENGINE ASSEMBLY

40.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
a.

Check the harnesses and connectors, referring to DTC P0102 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0102

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.

·

If the wire harness is normal, after replacing the mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 68 and perform intake system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94).




Result:
Proceed to
OK
NG



OK

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

41.INSPECT FUEL INJECTOR ASSEMBLY
a.

Using a sound scope or screwdriver, check for an injector operating sound while cranking the engine.

OK:

Fuel injector assembly operating sound is heard.



Result:
Proceed to
OK
NG



OK

42.CHECK FUEL PRESSURE

NG

53.READ VALUE USING GTS (ENGINE SPEED)
42.CHECK FUEL PRESSURE

Result:
Proceed to
OK
NG



OK

43.CHECK SPARK PLUG AND SPARK

NG

51.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
43.CHECK SPARK PLUG AND SPARK

Result:
Proceed to
OK
NG



OK

44.CONFIRM VEHICLE CONDITION

NG

47.INSPECT SPARK PLUG
44.CONFIRM VEHICLE CONDITION
a.

Confirm the conditions present when the malfunction occurred based on the customer problem analysis.

Result:
Problem Symptom Suspected Area Proceed to
When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator assembly is stuck open A
When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*2 Failure to maintain fuel pressure by pressure regulator assembly
When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*3 Fuel injector assembly leak B
Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C
*4


HINT:
·

*1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*2: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*3: Fuel may be leaking from a fuel injector assembly.

·

*4: From step 68, perform fuel system troubleshooting C (steps 69 to 73).





A

45.CHECK FUEL PRESSURE

B

46.INSPECT FUEL INJECTOR ASSEMBLY

C

68.CHECK MALFUNCTION CONDITION
45.CHECK FUEL PRESSURE
HINT:

For the fuel pressure inspection, refer to the following procedures.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION


a.

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Standard:

147 kPa (1.5 kgf/cm2, 21 psi) or higher (5 minutes after stopping the engine)


Result:
Result Proceed to
Abnormal A
Normal B
*


HINT:
·

If the engine cannot be started, read the values after cranking the engine.

·

*: from step 68, perform fuel system troubleshooting C (steps 69 to 73).





A

REPLACE FUEL PRESSURE REGULATOR ASSEMBLY

B

68.CHECK MALFUNCTION CONDITION
46.INSPECT FUEL INJECTOR ASSEMBLY
a.

Clean the inside of the intake manifold with compressed air.


b.

After stopping the engine, measure the HC concentration inside the intake manifold for 15 minutes.

Result:
Result Proceed to
4000 ppm or higher A
Less than 4000 ppm B
*


HINT:
·

If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.

·

*: From step 68, perform fuel system troubleshooting C (steps 69 to 73).





A

REPLACE FUEL INJECTOR ASSEMBLY

B

68.CHECK MALFUNCTION CONDITION
47.INSPECT SPARK PLUG
a.

Inspect the spark plugs.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>IGNITION SYSTEM>ON-VEHICLE INSPECTION

HINT:

Even if the spark plug of only one cylinder is malfunctioning, replace the spark plugs of all cylinders.



Result:
Proceed to
OK
NG



OK

48.READ VALUE USING GTS (ENGINE SPEED)

NG

48.READ VALUE USING GTS (ENGINE SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Engine Speed.

Powertrain > Engine and ECT > Data List
Tester Display
Engine Speed
50003 234 9

e.

Start the engine.


f.

While running the engine, read the [Engine Speed] value.

OK:

A value that matches the actual engine speed is constantly output.


HINT:
·

Check the engine speed using a line graph.

·

If the engine cannot be started, check the engine speed while cranking the engine.

·

If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.




Result:
Proceed to
OK
NG



OK

49.CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY)

NG

CHECK CRANKSHAFT POSITION SENSOR CIRCUIT

49.CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY)
a.

Check the harnesses and connectors, referring to DTC P0351 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0351

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

50.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)

NG

CHECK IGNITION COIL POWER SOURCE CIRCUIT

50.CHECK HARNESS AND CONNECTOR (IGNITION COIL ASSEMBLY - ECM)
a.

Check the harnesses and connectors, referring to DTC P0351 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0351

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.

·

If the wire harness is normal, after replacing the ignition coil assembly, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 68 and perform troubleshooting for the ignition system (steps 75 to 83).




Result:
Proceed to
OK
NG



OK

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

51.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for an operating sound from the fuel pump.

OK:
Control the Fuel Pump / Speed Specified Condition
ON Operating sound heard
OFF Operating sound not heard


HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.



Result:
Proceed to
OK
NG



OK

52.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)

NG

52.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result:
Result Proceed to
Fuel leakage or signs of fuel leakage are present A
No fuel leakage or signs of fuel leakage B


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

·

If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 68 and perform fuel system troubleshooting C (steps 69 to 73).





A

REPAIR OR REPLACE FUEL LINE

B

53.READ VALUE USING GTS (ENGINE SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Engine Speed.

Powertrain > Engine and ECT > Data List
Tester Display
Engine Speed
50003 234 9

e.

Start the engine.


f.

While running the engine, read the [Engine Speed] value.

OK:

A value that matches the actual engine speed is constantly output.


HINT:
·

Check the engine speed using a line graph.

·

If the engine cannot be started, check the engine speed while cranking the engine.

·

If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.




Result:
Proceed to
OK
NG



OK

54.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)

NG

54.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)
a.

Disconnect the ECM connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
B56-86 (#10) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-85 (#20) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-84 (#30) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-83 (#40) - B56-46 (E01) Ignition switch ON 11 to 14 V


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

NG

55.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a.

Inspect the engine coolant temperature sensor.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>ENGINE COOLANT TEMPERATURE SENSOR>INSPECTION

HINT:

If the engine coolant temperature sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.



Result:
Proceed to
OK
NG



OK

56.CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)

NG

56.CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)
a.

Disconnect the engine coolant temperature sensor connector.


b.

Disconnect the ECM connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
B4-2 - B56-64 (THW) Always Below 1 Ω
B4-1 - B56-65 (ETHW) Always Below 1 Ω
B4-2 or B56-64 (THW) - Body ground Always 10 kΩ or higher


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.

·

If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.




Result:
Proceed to
OK
NG



OK

57.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

57.INSPECT MASS AIR FLOW METER SUB-ASSEMBLY
a.

Inspect the mass air flow meter sub-assembly.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>MASS AIR FLOW METER>ON-VEHICLE INSPECTION

HINT:

If the mass air flow meter sub-assembly is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.



Result:
Proceed to
OK
NG



OK

58.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)

NG

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

58.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
a.

Check the harnesses and connectors, referring to DTC P0102 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0102

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.

·

If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.




Result:
Proceed to
OK
NG



OK

59.READ VALUE USING GTS

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

59.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Long FT #1 and Atmosphere Pressure.

Powertrain > Engine and ECT > Data List
Tester Display
Long FT #1
Atmosphere Pressure
50003 234 26,7
Result:
Data List Item Result Suspected Area Proceed to
Long FT #1 25% or higher, or less than -25%
·

Air fuel ratio sensor

·

Heated oxygen sensor

·

Mass air flow meter sub-assembly

·

Fuel injector assembly

·

ECM


A
Atmosphere Pressure 80 kPa(abs) [600 mmHg(abs)] or less (when altitude is 0 m [0 ft])
Both Data List items listed above Values are other than above - B




A

60.PERFORM SIMULATION TEST

B

63.CHECK FUEL PRESSURE
60.PERFORM SIMULATION TEST
a.

Remove the ECU-B NO. 3 and ETCS fuses from the engine room relay block assembly.


b.

After 60 seconds or more elapse, install the fuses.


c.

Check if the engine can be started.


Result:
Result Proceed to
Engine can be started A
Engine cannot be started B



A

61.INSPECT AIR FUEL RATIO SENSOR

B

63.CHECK FUEL PRESSURE
61.INSPECT AIR FUEL RATIO SENSOR
A280723E08
1.313,0.604 1.813,0.854 0.5,0.25 10 12.5 % 1.26,0.917 1.76,1.167 0.5,0.25 10 -12.5 % 0.625,2.219 1.99,2.531 1.365,0.313 10 Higher than 3.4 V 0.542,3.781 1.906,4.094 1.365,0.313 10 Higher than 0.55 V 0.948,2.594 2.313,2.906 1.365,0.313 10 Below 3.1 V 0.927,4.156 2.292,4.469 1.365,0.313 10 Below 0.4 V 0.969,0.25 2.25,0.573 1.281,0.323 10 Injection Volume 0.333,1.76 2.802,2.083 2.469,0.323 10 Air Fuel Ratio Sensor Output Voltage 0.323,3.333 2.771,3.667 2.448,0.333 10 Heated Oxygen Sensor Output Voltage

a.

Connect the GTS to the DLC3.


b.

Start the engine.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Fuel System Status #1.

Powertrain > Engine and ECT > Data List
Tester Display
Fuel System Status #1
50003 234 23

e.

Confirm that Fuel System Status #1 is CL.


f.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / AF Lambda B1S1.

Powertrain > Engine and ECT > Data List
Tester Display
AF Lambda B1S1
50003 234 34

g.

Confirm that AF Lambda B1S1 is within the range of 0.95 to 1.05 when idling.


h.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / All Data / AFS Voltage B1S1 and O2S B1S2.

Powertrain > Engine and ECT > Active Test
Active Test Display
Control the Injection Volume for A/F Sensor
Data List Display
AFS Voltage B1S1
O2S B1S2
50004 234 2 35,44

i.

Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.

Standard:
GTS Display Injection Volume Specified Condition
AFS Voltage B1S1 12.5% Air fuel ratio sensor output voltage is below 3.1 V
-12.5% Air fuel ratio sensor output voltage is higher than 3.4 V


HINT:
·

The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

·

If the air fuel ratio sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.




Result:
Proceed to
OK
NG



OK

62.PERFORM SIMULATION TEST

NG

62.PERFORM SIMULATION TEST
a.

Check if the idling speed is stable after starting the engine.

OK:

Engine speed is stable.


HINT:

After replacing the fuel injector assembly or mass air flow meter sub-assembly, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.



Result:
Proceed to
OK
NG



OK

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY

NG

REPLACE FUEL INJECTOR ASSEMBLY

63.CHECK FUEL PRESSURE

Result:
Proceed to
OK
NG



OK

64.INSPECT SPARK PLUG

NG

74.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
64.INSPECT SPARK PLUG
a.

Inspect the spark plugs.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>IGNITION SYSTEM>ON-VEHICLE INSPECTION

Result:
Result Proceed to
All cylinders are normal A
One cylinder is abnormal*1 B
All cylinders are abnormal*2, *3 C


HINT:
·

*1: If one cylinder is abnormal, replace the spark plug of that cylinder and inspect the ignition and fuel system for that cylinder. After performing repairs, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.

·

*2: If all cylinders are abnormal, replace the spark plugs of all cylinders and check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.

·

*3: Engine starting trouble may occur if the vehicle is driven extremely short distances repeatedly.





A

65.CONFIRM VEHICLE CONDITION

B

C

65.CONFIRM VEHICLE CONDITION
a.

Confirm the conditions present when the malfunction occurred based on the customer problem analysis.

Result:
Problem Symptom Suspected Area Proceed to
When the engine is stopped and a long time has passed, engine starting trouble occurs*1 Pressure regulator assembly is stuck open A
When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*2 Failure to maintain fuel pressure by pressure regulator assembly
When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*3 Fuel injector assembly leak B
Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs - C
*4


HINT:
·

*1: The pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*2: The pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

·

*3: Fuel may be leaking from a fuel injector assembly.

·

*4: From step 68, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.





A

66.CHECK FUEL PRESSURE

B

67.INSPECT FUEL INJECTOR ASSEMBLY

C

68.CHECK MALFUNCTION CONDITION
66.CHECK FUEL PRESSURE
HINT:

For the fuel pressure inspection, refer to the following procedures.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION


a.

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Standard:

147 kPa (1.5 kgf/cm2, 21 psi) or higher (5 minutes after stopping the engine)


Result:
Result Proceed to
Abnormal A
Normal B
*


HINT:
·

If the engine cannot be started, read the values after cranking the engine.

·

*: From step 68, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.





A

REPLACE FUEL PRESSURE REGULATOR ASSEMBLY

B

68.CHECK MALFUNCTION CONDITION
67.INSPECT FUEL INJECTOR ASSEMBLY
a.

Clean the inside of the intake manifold with compressed air.


b.

After stopping the engine, measure the HC concentration inside the intake manifold for 15 minutes.

Result:
Result Proceed to
4000 ppm or higher A
Less than 4000 ppm B
*


HINT:
·

If the concentration is 4000 ppm or higher, a fuel injector may have a sealing problem.

·

*: From step 68, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.





A

REPLACE FUEL INJECTOR ASSEMBLY

B

68.CHECK MALFUNCTION CONDITION
68.CHECK MALFUNCTION CONDITION
a.

If the malfunction could not be identified during the inspection in steps 44, 45, 46 and 52, perform fuel system troubleshooting C (steps 69 to 73).

Result:
Performed Step Troubleshooting by System Procedure Proceed to
Steps 44, 45, 46 and 52 Fuel system troubleshooting C 69 to 73 A



b.

If the malfunction could not be identified during the inspection in step 50, perform ignition system troubleshooting (steps 75 to 83).

Result:
Performed Step Troubleshooting by System Procedure Proceed to
Step 50 Ignition system troubleshooting 75 to 83 B



c.

If the malfunction could not be identified during the inspection in steps 34 and 40, perform intake air system troubleshooting (steps 84 to 86). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 87 to 94).

Result:
Performed Step Troubleshooting by System Procedure Proceed to
Step 34 and 40 Intake air system troubleshooting 84 to 86 C
Fuel system troubleshooting A 87 to 94



d.

If the malfunction could not be identified during the inspection in steps 55, 56, 57, 58, 61, 62, 64, 65, 66, 67 and 74, perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake air system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.

Result:
Performed Step Troubleshooting by System Procedure Proceed to
Steps 55, 56, 57, 58, 61, 62, 64, 65, 66, 67 and 74 Fuel system troubleshooting A 95 to 102 D
Fuel system troubleshooting B 103 to 104
Intake air system troubleshooting 105 to 108
Ignition system troubleshooting 109 to 117




A

69.INSPECT FUEL INJECTOR ASSEMBLY

B

75.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

C

84.READ VALUE USING GTS (ISC LEARNING VALUE)

D

95.CHECK FUEL PRESSURE
69.INSPECT FUEL INJECTOR ASSEMBLY
a.

Inspect the fuel injector assemblies.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL INJECTOR>INSPECTION


Result:
Proceed to
OK
NG



OK

70.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)

NG

REPLACE FUEL INJECTOR ASSEMBLY

70.CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40)
a.

Disconnect the ECM connector.


b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
B56-86 (#10) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-85 (#20) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-84 (#30) - B56-46 (E01) Ignition switch ON 11 to 14 V
B56-83 (#40) - B56-46 (E01) Ignition switch ON 11 to 14 V


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

71.REPLACE CRANKSHAFT POSITION SENSOR

NG

71.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

72.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
72.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
a.

Replace the camshaft position sensor (for intake camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)

NG

73.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
73.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
a.

Replace the camshaft position sensor (for exhaust camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)

NG

74.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result:
Result Proceed to
Fuel leakage or signs of fuel leakage are present A
No fuel leakage or signs of fuel leakage B


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

·

If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 68 and perform fuel system troubleshooting A (steps 95 to 102), fuel system troubleshooting B (steps 103 to 104), intake system troubleshooting (steps 105 to 108), and ignition system troubleshooting (steps 109 to 117), in that order.





A

REPAIR OR REPLACE FUEL LINE

B

75.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
a.

Check the tightening and installation condition of the crankshaft position sensor bolt.


b.

Check the connection of the crankshaft position sensor connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

76.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))

NG

SECURELY REINSTALL SENSOR

76.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))
a.

Check the tightening and installation condition of the camshaft position sensor (for intake camshaft) bolt.


b.

Check the connection of the camshaft position sensor (for intake camshaft) connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

77.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))

NG

SECURELY REINSTALL SENSOR (FOR INTAKE CAMSHAFT)

77.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))
a.

Check the tightening and installation condition of the camshaft position sensor (for exhaust camshaft) bolt.


b.

Check the connection of the camshaft position sensor (for exhaust camshaft) connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

78.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

NG

SECURELY REINSTALL SENSOR (FOR EXHAUST CAMSHAFT)

78.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
a.

Check the harnesses and connectors, referring to DTC P0335 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0335

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

79.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

79.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM)
a.

Check the harnesses and connectors, referring to DTC P0340 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0340

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

80.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

80.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) - ECM)
a.

Check the harnesses and connectors, referring to DTC P0365 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0365

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

81.REPLACE CRANKSHAFT POSITION SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

81.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

82.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
82.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
a.

Replace the camshaft position sensor (for intake camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)

NG

83.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
83.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
a.

Replace the camshaft position sensor (for exhaust camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)

NG

84.READ VALUE USING GTS (ISC LEARNING VALUE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / ISC Learning Value.

Powertrain > Engine and ECT > Data List
Tester Display
ISC Learning Value
50003 234 495

e.

Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches off.

Result:
Data List Item Result Suspected Area Proceed to
ISC Learning Value (Engine displacement (liters) x 0.9) or higher
·

Valve timing

·

Compression


A
Less than (engine displacement (liters) x 0.9) - B




A

85.CHECK CYLINDER COMPRESSION PRESSURE

B

86.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
85.CHECK CYLINDER COMPRESSION PRESSURE

Result:
Proceed to
OK
NG



OK

CHECK ENGINE MECHANICAL SYSTEM (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN)

NG

CHECK AND REPAIR ENGINE ASSEMBLY

86.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a.

Result:
Proceed to
OK
NG



OK

87.CHECK FUEL PRESSURE

NG

87.CHECK FUEL PRESSURE
HINT:

For the fuel pressure inspection, refer to the following procedures.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION


a.

Attach a fuel pressure gauge and check the fuel pressure when cranking the engine and after stopping the engine.

Standard:
Vehicle State Specified Condition
Cranking engine 304 to 343 kPa (3.1 to 3.5 kgf/cm2, 44 to 50 psi)
5 minutes after stopping engine 147 kPa (1.5 kgf/cm2, 21 psi) or higher



Result:
Proceed to
OK
NG



OK

88.READ VALUE USING GTS (LONG FT #1)

NG

93.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
88.READ VALUE USING GTS (LONG FT #1)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Long FT #1.

Powertrain > Engine and ECT > Data List
Tester Display
Long FT #1
50003 234 26
Result:
Data List Item Result Suspected Area Proceed to
Long FT #1 -15 to 15%
·

Wire harness or connector

·

Fuel


A
15% or higher, or less than -15% Fuel injector assembly B




A

89.PERFORM SIMULATION TEST

B

REPLACE FUEL INJECTOR ASSEMBLY

89.PERFORM SIMULATION TEST
a.

Check if the idling speed after starting the engine is currently stable and has always been stable in the past.

Result:
Problem Symptom Suspected Area Proceed to
Current unstable idle speed or history of unstable idle speed Crankshaft position sensor system A
All current and past idle speeds are stable Fuel B


HINT:

Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.




A

90.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

B

REPLACE FUEL

90.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
a.

Check the tightening and installation condition of the crankshaft position sensor bolt.


b.

Check the connection of the crankshaft position sensor connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

91.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

NG

SECURELY REINSTALL SENSOR

91.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
a.

Check the harnesses and connectors, referring to DTC P0335 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0335

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

92.REPLACE CRANKSHAFT POSITION SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

92.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

93.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result:
Result Proceed to
Fuel leakage or signs of fuel leakage are present A
No fuel leakage or signs of fuel leakage B


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.

·

Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.





A

REPAIR OR REPLACE FUEL LINE

B

94.INSPECT FUEL PUMP
94.INSPECT FUEL PUMP
a.

Inspect the fuel pump.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL PUMP>INSPECTION

HINT:
·

Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.

·

Make sure the internal connector is securely connected.

·

Make sure the fuel pump filter is not clogged.




Result:
Proceed to
OK
NG



OK

REPLACE FUEL PRESSURE REGULATOR ASSEMBLY

NG

95.CHECK FUEL PRESSURE
HINT:

For the fuel pressure inspection, refer to the following procedures.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL SYSTEM>ON-VEHICLE INSPECTION


a.

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Standard:

147 kPa (1.5 kgf/cm2, 21 psi) or higher (5 minutes after stopping the engine)


HINT:

If the engine cannot be started, read the values after cranking the engine.



Result:
Proceed to
OK
NG



OK

96.READ VALUE USING GTS (LONG FT #1)

NG

101.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
96.READ VALUE USING GTS (LONG FT #1)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Long FT #1.

Powertrain > Engine and ECT > Data List
Tester Display
Long FT #1
50003 234 26
Result:
Data List Item Result Suspected Area Proceed to
Long FT #1 -15 to 15%
·

Wire harness or connector

·

Fuel


A
15% or higher, or less than -15% Fuel injector assembly B




A

97.PERFORM SIMULATION TEST

B

REPLACE FUEL INJECTOR ASSEMBLY

97.PERFORM SIMULATION TEST
a.

Check if the idling speed after starting the engine is currently stable and has always been stable in the past.

Result:
Problem Symptom Suspected Area Proceed to
Current unstable idling speed or history of unstable idling speed Crankshaft position sensor system A
All current and past idling speeds are stable Fuel B


HINT:

Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.




A

98.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

B

REPLACE FUEL

98.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
a.

Check the tightening and installation condition of the crankshaft position sensor bolt.


b.

Check the connection of the crankshaft position sensor connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

99.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

NG

SECURELY REINSTALL SENSOR

99.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
a.

Check the harnesses and connectors, referring to DTC P0335 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0335

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

100.REPLACE CRANKSHAFT POSITION SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

100.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

101.PERFORM ACTIVE TEST USING GTS (CONTROL THE FUEL PUMP / SPEED)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Powertrain > Engine and ECT > Active Test
Tester Display
Control the Fuel Pump / Speed
50004 234 5

e.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result:
Result Proceed to
Fuel leakage or signs of fuel leakage are present A
No fuel leakage or signs of fuel leakage B


HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.

·

Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.





A

REPAIR OR REPLACE FUEL LINE

B

102.INSPECT FUEL PUMP
102.INSPECT FUEL PUMP
a.

Inspect the fuel pump.

Click hereEngine / Hybrid System>1ZR-FE FUEL>FUEL PUMP>INSPECTION

HINT:
·

Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.

·

Make sure the internal connector is securely connected.

·

Make sure the fuel pump filter is not clogged.




Result:
Proceed to
OK
NG



OK

103.CHECK PURGE VSV

NG

103.CHECK PURGE VSV
A296155C02
1.333,1.25 1.5,1.667 1.5,1.667 1.667,1.667 true 2.417,1.333 2.333,1.667 2.333,1.667 2.5,1.667 true 2.333,0.833 2.469,1.042 2.469,1.042 2.635,1.042 true 1.688,1.594 1.896,1.792 0.208,0.198 10 true *1 2.521,1.594 2.708,1.813 0.188,0.219 10 true *2 2.656,0.969 2.854,1.156 0.198,0.188 10 true *3
*1 Purge VSV
*2 Fuel Vapor Feed Hose
(to Canister)
*3 Connector


a.

Disconnect the fuel vapor feed hose (on the canister side) of the purge VSV.


b.

Start the engine.


c.

Idle the engine.


d.

Disconnect the connector of the purge VSV.


e.

Check if air flows through the purge VSV.

OK:

Air does not flow


HINT:

When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear the DTCs.



Result:
Proceed to
OK
NG



OK

104.INSPECT FUEL INJECTOR ASSEMBLY

NG

104.INSPECT FUEL INJECTOR ASSEMBLY
a.

Clean the inside of the intake manifold with compressed air.


b.

After stopping the engine, measure the HC concentration inside the intake manifold for 15 minutes.

Result:
Result Proceed to
4000 ppm or higher A
Less than 4000 ppm B


HINT:

If the concentration is 4000 ppm or higher, a fuel injector assembly may have a sealing problem.




A

REPLACE FUEL INJECTOR ASSEMBLY

B

105.CHECK INTAKE VALVE
105.CHECK INTAKE VALVE
a.

Check if carbon is on the intake valves.


Result:
Result Proceed to
Carbon present A
No carbon present B



A

CLEAN INTAKE VALVE

B

106.READ VALUE USING GTS (ISC LEARNING VALUE)
106.READ VALUE USING GTS (ISC LEARNING VALUE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / ISC Learning Value.

Powertrain > Engine and ECT > Data List
Tester Display
ISC Learning Value
50003 234 495

e.

Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches off.


Result:
Data List Item Result Suspected Area Proceed to
ISC Learning Value (Engine displacement (liters) x 0.9) or more
·

Valve timing

·

Compression


A
Less than (engine displacement (liters) x 0.9) - B



A

107.CHECK CYLINDER COMPRESSION PRESSURE

B

108.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
107.CHECK CYLINDER COMPRESSION PRESSURE

Result:
Proceed to
OK
NG



OK

CHECK ENGINE MECHANICAL SYSTEM (CHECK FOR LOOSE OR JUMPED TEETH ON TIMING CHAIN)

NG

CHECK AND REPAIR ENGINE ASSEMBLY

108.INSPECT ENGINE COOLANT TEMPERATURE SENSOR
a.

Result:
Proceed to
OK
NG



OK

109.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)

NG

109.CHECK SENSOR INSTALLATION (CRANKSHAFT POSITION SENSOR)
a.

Check the tightening and installation condition of the crankshaft position sensor bolt.


b.

Check the connection of the crankshaft position sensor connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

110.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))

NG

SECURELY REINSTALL SENSOR

110.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT))
a.

Check the tightening and installation condition of the camshaft position sensor (for intake camshaft) bolt.


b.

Check the connection of the camshaft position sensor (for intake camshaft) connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

111.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))

NG

SECURELY REINSTALL SENSOR (FOR INTAKE CAMSHAFT)

111.CHECK SENSOR INSTALLATION (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT))
a.

Check the tightening and installation condition of the camshaft position sensor (for exhaust camshaft) bolt.


b.

Check the connection of the camshaft position sensor (for exhaust camshaft) connector.

OK:

Sensor is installed correctly.



Result:
Proceed to
OK
NG



OK

112.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

NG

SECURELY REINSTALL SENSOR (FOR EXHAUST CAMSHAFT)

112.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
a.

Check the harnesses and connectors, referring to DTC P0335 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0335

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

113.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

113.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) - ECM)
a.

Check the harnesses and connectors, referring to DTC P0340 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0340

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

114.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) - ECM)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

114.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) - ECM)
a.

Check the harnesses and connectors, referring to DTC P0365 inspection procedure.

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>SFI SYSTEM>P0365

HINT:
·

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

·

Make sure there is not an excessive amount of force applied to the wire harness.




Result:
Proceed to
OK
NG



OK

115.REPLACE CRANKSHAFT POSITION SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

115.REPLACE CRANKSHAFT POSITION SENSOR
a.

b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

NG

116.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
116.REPLACE CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT)
a.

Replace the camshaft position sensor (for intake camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR INTAKE CAMSHAFT) IS DEFECTIVE)

NG

117.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
117.REPLACE CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT)
a.

Replace the camshaft position sensor (for exhaust camshaft).

Click hereEngine / Hybrid System>1ZR-FE ENGINE CONTROL>CAMSHAFT POSITION SENSOR>REMOVAL


b.

Check the engine start operation.

OK:

Malfunction has been repaired successfully.



Result:
Proceed to
OK
NG



OK

END (CAMSHAFT POSITION SENSOR (FOR EXHAUST CAMSHAFT) IS DEFECTIVE)

NG