How To Proceed With Troubleshooting

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

HINT
* Use the following procedure to troubleshoot the lighting system.
* *: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

NEXT -- Continue to next step.

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

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

NEXT -- Continue to next step.

4. INSPECT 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.

5. CHECK FOR DTC*

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- Go to step 8
A -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Exterior Lighting System.

Result:





B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test Data List / Active Test

(b) Terminals of ECU Exterior Lighting System

NEXT -- Continue to next step.

8. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END