How To Proceed With Troubleshooting

LIGHTING (INT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the lighting system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the LIN communication system is functioning normally.

Result





B -- GO TO LIN COMMUNICATION SYSTEM Initial Inspection and Diagnostic Overview
A -- Continue to next step.

4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

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

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check Operation Check.

(b) Terminals of ECU Interior Lighting System.

(c) Data List/Active Test Interior Lighting System.

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END