LIGHTING (EXT)  LIGHTING SYSTEM  HOW TO PROCEED WITH TROUBLESHOOTING  


CAUTION / NOTICE / HINT

HINT:
·

Use the following procedure to troubleshoot the lighting system.

·

*: Use the GTS.



PROCEDURE

1.VEHICLE BROUGHT TO WORKSHOP
Result:
Proceed to
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NEXT

2.CUSTOMER PROBLEM ANALYSIS
2.CUSTOMER PROBLEM ANALYSIS
HINT:
·

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

·

Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

·

The following 5 items are important points for problem analysis:

What Vehicle model, system name
When Date, time, occurrence frequency
Where Road conditions
Under what conditions? Driving conditions, weather conditions
How did it happen? Problem symptoms



Result:
Proceed to
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3.PRE-CHECK
3.PRE-CHECK
a.

Measure the battery voltage.

Standard Voltage:

11 to 14 V


If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.


b.

Check the fuses and relays.


c.

Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.


Result:
Proceed to
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NEXT

4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
4.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
a.

Using the GTS, check for CAN communication system DTCs.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>DIAGNOSIS SYSTEM


Result:
Result Proceed to
CAN DTCs are not output A
CAN DTCs are output B



A

5.CHECK FOR DTC*

B

GO TO CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


5.CHECK FOR DTC*
a.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 123

Result:
Result Proceed to
DTCs are not output A
DTCs are output B



A

6.PROBLEM SYMPTOMS TABLE

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


6.PROBLEM SYMPTOMS TABLE
a.

Refer to Problem Symptoms Table.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


Result:
Result Proceed to
Fault is not listed in Problem Symptoms Table A
Fault is listed in Problem Symptoms Table B



A

7.OVERALL ANALYSIS AND TROUBLESHOOTING*

B

GO TO PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


7.OVERALL ANALYSIS AND TROUBLESHOOTING*
a.

Operation Check.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>OPERATION CHECK


b.

Terminals of ECU.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>TERMINALS OF ECU


c.

Fail-safe Chart.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>FAIL-SAFE CHART


d.

Data List / Active Test.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>DATA LIST / ACTIVE TEST


e.

On-vehicle Inspection.


f.

Inspection.


Result:
Proceed to
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NEXT

8.ADJUST, REPAIR OR REPLACE
8.ADJUST, REPAIR OR REPLACE
Result:
Proceed to
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NEXT

9.CONFIRMATION TEST
9.CONFIRMATION TEST
Result:
Proceed to
NEXT



NEXT

END