How To Proceed With Troubleshooting

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

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

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK FOR DTC*
(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
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 Exterior Lighting System.
(c) Data List/Active Test Exterior Lighting System.
NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.

8. CONFIRMATION TEST
NEXT -- END