How To Proceed With Troubleshooting

HINT:

Use the following procedures to troubleshoot the lighting system.

*: Use the intelligent tester.

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

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INSPECT BATTERY VOLTAGE

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Standard voltage: 11 to 14 V

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

INSPECT CAN COMMUNICATION SYSTEM*

(a) Use the intelligent tester to check if the CAN communication system is functioning normally.

Result

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

Go to step 8

CHECK FOR DTC*

Result

Result

Proceed to

DTC is not output

A

DTC is output

Go to step 8

PROBLEM SYMPTOMS TABLE

Result

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

Go to step 8

OVERALL ANALYSIS AND TROUBLESHOOTING*

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(b) Terminals of ECU (See page LI-16)

ADJUST, REPAIR OR REPLACE

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CONFIRMATION TEST

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Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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