THEFT DETERRENT / KEYLESS ENTRY  IMMOBILISER SYSTEM(w/ Smart Entry and Start System)  TERMINALS OF ECU  


CHECK ENGINE SWITCH


B271001N86
3.396,0.292 3.813,0.521 0.417,0.229 3.448,0.323 3.906,0.583 0.458,0.26 10 false E111

a.

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

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E111-6 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω -
E111-7 (TXCT) - E111-6 (AGND) Input L - BR Immobiliser communication input Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
E111-8 (CODE) - E111-6 (AGND) Output P - BR Immobiliser communication output Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
E111-10 (VC5) - E111-6 (AGND) Input SB - BR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -

*1: except Manual Transaxle

*2: for Manual Transaxle



b.

Check for pulses according to the value(s) in the table below.

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E111-7 (TXCT) - E111-6 (AGND) Input L - BR Signal input from certification ECU (smart key ECU assembly)
(Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves) 		Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
(See waveform 1)
·

BCC Malfunction

·

Abnormal Status

·

Different Encrypt Code

·

Different Serial Number

·

Frame Error

·

Response

HINT:

If immobiliser key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above



E111-8 (CODE) - E111-6 (AGND) Output P - BR Signal output to certification ECU (smart key ECU assembly)
(Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly)) 		Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch* Pulse generation
(See waveform 2)
E111-10 (VC5) - E111-6 (AGND) Input SB - BR Transponder key amplifier power supply
(Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated) 		Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
(See waveform 3)

HINT:

*: Remove the transmitter battery before performing this inspection.



c.

Using an oscilloscope, check the waveform.

HINT:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


i.
B051052N18
2.802,0.781 3.156,0.969 0.354,0.188 10 GND

Waveform 1 (Reference)

Measurement Condition
Item Content
Tester Connection E111-7 (TXCT) - E111-6 (AGND)
Tool Setting 2 V/DIV., 20 ms./DIV.
Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed


ii.
B251418C11
1.844,0.802 2.635,1.542 2.635,1.542 2.75,1.542 false 2.781,1 3.219,1.167 0.438,0.167 10 GND 2.781,1.458 2.958,1.625 0.177,0.167 10 *a
*a Electrical key transmitter sub-assembly held near engine switch


Waveform 2 (Reference)

Measurement Condition
Item Content
Tester Connection E111-8 (CODE) - E111-6 (AGND)
Tool Setting 2 V/DIV., 20 ms./DIV.
Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

HINT:

*: Remove the transmitter battery before performing this inspection.



iii.
B216007N05
2.885,1.031 3.427,1.375 0.542,0.344 10 GND

Waveform 3 (Reference)

Measurement Condition
Item Content
Tester Connection E111-10 (VC5) - E111-6 (AGND)
Tool Setting 2 V/DIV., 200 ms./DIV.
Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed




CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


B401576N20
1.813,0.667 2.219,0.927 0.406,0.26 3.208,0.667 3.615,0.927 0.406,0.26 4.771,0.656 5.177,0.917 0.406,0.26 1.854,0.719 2.469,0.917 0.615,0.198 10 false E108 3.26,0.719 3.875,0.917 0.615,0.198 10 false E109 4.823,0.719 5.438,0.917 0.615,0.198 10 false E110

a.

Disconnect the E108 certification ECU (smart key ECU assembly) connector.


b.

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

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E108-2 (+B) - E108-11 (E) Input L- W-B +B power supply Always 11 to 14 V -
E108-10 (CUTB) - E108-11 (E) Input LG - W-B Stand-by power Always 11 to 14 V -
E108-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -


c.

Reconnect the E108 certification ECU (smart key ECU assembly) connector.


d.

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

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E110-5 (IG) - E108-11 (E) Input GR - W-B Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V Ignition Switch
E110-9 (TXCT) - E110-24 (AGND) Output L - BR Signal output to transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
·

BCC Malfunction

·

Abnormal Status

·

Different Encrypt Code

·

Different Serial Number

·

Frame Error

·

Response


E110-7 (CODE) - E110-24 (AGND) Input P - BR Signal input from transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
E110-1 (VC5) - E110-24 (AGND) Output SB - BR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
E110-24 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω

*1: except Manual Transaxle

*2: for Manual Transaxle



e.

Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E110-18 (IND) - E108-11 (E) Output Y - W-B Security indicator output Engine switch off → on (IG) Pulse generation
→ Below 2 V 		-
E110-9 (TXCT) - E110-24 (AGND) Output L - BR Signal output to transponder key amplifier
(Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves) 		Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
(See waveform 1)
·

BCC Malfunction

·

Abnormal Status

·

Different Encrypt Code

·

Different Serial Number

·

Frame Error

·

Response


E110-7 (CODE) - E110-24 (AGND) Input P - BR Signal input from transponder key amplifier
(Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly)) 		Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch* Pulse generation
(See waveform 2)
E110-1 (VC5) - E110-24 (AGND) Output SB - BR Transponder key amplifier power supply
(Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated) 		Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
(See waveform 3)

HINT:

*: Remove the transmitter battery before performing this inspection.



f.

Using an oscilloscope, check the waveform.

HINT:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


i.
B051052N19
2.802,0.781 3.156,0.969 0.354,0.188 10 GND

Waveform 1 (Reference)

Measurement Condition
Item Content
Tester Connection E110-9 (TXCT) - E110-24 (AGND)
Tool Setting 2 V/DIV., 20 ms./DIV.
Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed


ii.
B251418C11
1.844,0.802 2.635,1.542 2.635,1.542 2.75,1.542 false 2.781,1 3.219,1.167 0.438,0.167 10 GND 2.781,1.458 2.958,1.625 0.177,0.167 10 *a
*a Electrical key transmitter sub-assembly held near engine switch


Waveform 2 (Reference)

Measurement Condition
Item Content
Tester Connection E110-7 (CODE) - E110-24 (AGND)
Tool Setting 2 V/DIV., 20 ms./DIV.
Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

HINT:

*: Remove the transmitter battery before performing this inspection.



iii.
B216007N06
2.885,1.031 3.427,1.375 0.542,0.344 10 GND

Waveform 3 (Reference)

Measurement Condition
Item Content
Tester Connection E110-1 (VC5) - E110-24 (AGND)
Tool Setting 2 V/DIV., 200 ms./DIV.
Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed




CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)


B435108N06
3.427,0.313 3.844,0.583 0.417,0.271 3.479,0.385 4.094,0.583 0.615,0.198 10 false E112

a.

Measure the resistance and voltage and check for pulses to the value(s) in the table below.

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E112-1 (GND) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
E112-3 (IGE) - E112-1 (GND) Input P - W-B Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly)) Steering lock motor operates when all conditions met, and then door opened:
·

Shift lever in P

·

Steering unlocked

·

Engine switch off


Pulse generation
(See waveform 1)
·

Power Supply Short

·

Unlock Request Receive

·

Lock Request Receive


E112-4 (SLP1) - E112-1 (GND) Output G - W-B Steering lock bar position signal (signal output from steering unlock sensor) Steering locked → unlocked* 11 to 14 V → Below 1.2 V Sensor Value
E112-6 (IG2) - E112-1 (GND) Input GR - W-B IG signal (IG2 power supply input for steering lock motor) Engine switch off → on (IG) Below 1 V → 11 to 14 V
·

B2788

·

Ignition Switch


E112-7 (B) - Body ground Output L - Body ground Constant power supply Always 11 to 14 V B2788

HINT:

*: The steering locks when any door is opened with the shift lever in P and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).



b.

Using an oscilloscope, check the waveform.

HINT:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


i.
C259594C03
1.052,0.344 2.958,0.219 2.958,0.219 2.521,0.396 true 2.031,1.802 2.292,1.969 true 3.01,0.135 3.323,0.292 0.313,0.156 10 *a 2.344,1.938 2.667,2.104 0.323,0.167 10 *b 2.938,1.594 3.302,1.792 0.365,0.198 10 GND
*a Steering lock motor not operating
*b Steering lock motor operating


Waveform 1 (Reference)

Measurement Condition
Item Content
Tester Connection E112-3 (IGE) - E112-1 (GND)
Tool Setting 2 V/DIV., 200 ms./DIV.
Condition Steering lock motor operates when all conditions met, and then door opened:
·

Shift lever in P

·

Steering unlocked

·

Engine switch off






CHECK ID CODE BOX (IMMOBILISER CODE ECU)


B463193N03
3.344,0.188 3.771,0.438 0.427,0.25 3.396,0.25 4.01,0.448 0.615,0.198 10 false E106

a.

Disconnect the E106 ID code box (immobiliser code ECU) connector.


b.

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

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E106-1 (+B) - E106-5 (GND) Input W - BR +B power supply Always 11 to 14 V B2789
E106-5 (GND) - Body ground - BR - Body ground Ground Always Below 1 Ω B2789


c.

Reconnect the E106 ID code box (immobiliser code ECU) connector.


d.

Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
E106-3 (EFII) - E106-5 (GND) Input LG - BR EFI communication input
(Signal input from ECM to ID code box (immobiliser code ECU)) 		Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
(See waveform 1)
·

B2799

·

B279A

·

Engine Start Request

·

EFI Code Receive


E106-3 (EFII) - E106-5 (GND) Input LG - BR EFI communication input
(Signal input from ECM to ID code box (immobiliser code ECU)) 		Engine switch off 11 to 14 V
E106-4 (EFIO) - E106-5 (GND) Output P - BR EFI communication output
(Signal output from ID code box (immobiliser code ECU) to ECM) 		Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
(See waveform 2)
E106-4 (EFIO) - E106-5 (GND) Output P - BR EFI communication output
(Signal output from ID code box (immobiliser code ECU) to ECM) 		Engine switch off 11 to 14 V


e.

Using an oscilloscope, check the waveform.

HINT:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


i.

Waveform 1 (Reference)

B325134C03
0.917,1.271 1.375,1.469 0.458,0.198 10 GND 2.719,1.354 3.177,1.552 0.458,0.198 10 *a 2.906,1.354 3.365,1.552 0.458,0.198 10 *b
*a Approximately 160 ms *b Approximately 270 ms


Measurement Condition
Item Content
Tester Connection E106-3 (EFII) - E106-5 (GND)
Tool Setting 2 V/DIV., 500 ms./DIV.
Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected


ii.

Waveform 2 (Reference)

B333259C02
0.844,1.24 1.302,1.438 0.458,0.198 10 GND 3.115,1.323 3.344,1.531 0.229,0.208 10 *a 3.313,1.323 3.542,1.531 0.229,0.208 10 *b
*a Approximately 160 ms *b Approximately 270 ms


Measurement Condition
Item Content
Tester Connection E106-4 (EFIO) - E106-5 (GND)
Tool Setting 2 V/DIV., 500 ms./DIV.
Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected




CHECK ECM


B318518N24
2.25,0.146 2.604,0.365 0.354,0.219 5.885,0.146 6.24,0.365 0.354,0.219 2.313,0.188 2.635,0.375 0.323,0.188 10 false B64 5.958,0.188 6.25,0.375 0.292,0.188 10 false A40

a.

Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
B64-59 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
A40-1 (BATT) - B64-59 (E1) Input P - BR +B power supply Always 11 to 14 V -
A40-2 (+B) - B64-59 (E1) Input B - BR +B power supply Engine switch on (IG) 11 to 14 V -
A40-3 (+B2) - B64-59 (E1) Input B - BR +B power supply Engine switch on (IG) 11 to 14 V -
A40-45 (IMO) - B64-59 (E1) Input LG - BR ID code box (immobiliser code ECU) communication input Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
(See waveform 1) 		-
A40-45 (IMO) - B64-59 (E1) Input LG - BR ID code box (immobiliser code ECU) communication input Engine switch off 11 to 14 V -
A40-28 (IMI) - B64-59 (E1) Output P - BR ID code box (immobiliser code ECU) communication output Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
(See waveform 2) 		-
A40-28 (IMI) - B64-59 (E1) Output P - BR ID code box (immobiliser code ECU) communication output Engine switch off 11 to 14 V -


b.

Using an oscilloscope, check the waveform.

HINT:

The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.


i.

Waveform 1 (Reference)

B325134C03
0.917,1.271 1.375,1.469 0.458,0.198 10 GND 2.719,1.354 3.177,1.552 0.458,0.198 10 *a 2.906,1.354 3.365,1.552 0.458,0.198 10 *b
*a Approximately 160 ms *b Approximately 270 ms


Measurement Condition
Item Content
Tester Connection A40-45 (IMO) - B64-59 (E1)
Tool Setting 2 V/DIV., 500 ms./DIV.
Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected


ii.

Waveform 2 (Reference)

B333259C02
0.844,1.24 1.302,1.438 0.458,0.198 10 GND 3.115,1.323 3.344,1.531 0.229,0.208 10 *a 3.313,1.323 3.542,1.531 0.229,0.208 10 *b
*a Approximately 160 ms *b Approximately 270 ms


Measurement Condition
Item Content
Tester Connection A40-28 (IMI) - B64-59 (E1)
Tool Setting 2 V/DIV., 500 ms./DIV.
Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected