How To Proceed With Troubleshooting

LIGHTING: LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

The Techstream can be used at steps 4, 5, 6, and 12.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS

NEXT -- Continue to next step.

3. PROBLEM SYMPTOM CONFIRMATION

-- SYMPTOM DOES NOT OCCUR (GO TO STEP 4)

-- SYMPTOM OCCURS (GO TO STEP 5)

4. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM

(a) Check for DTC outputs.

-- MULTIPLEX DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM"

-- NO MULTIPLEX DTC (GO TO STEP 5)

5. DTC CHECK (OTHER THAN MULTIPLEX DTC)

-- MALFUNCTION CODE (GO TO STEP 6)

-- NORMAL CODE (GO TO STEP 7)

6. DTC CHART

-- GO TO STEP 8

7. PROBLEM SYMPTOMS TABLE

NEXT -- Continue to next step.

8. TERMINALS OF ECU

NEXT -- Continue to next step.

9. CIRCUIT INSPECTION

NEXT -- Continue to next step.

10. IDENTIFICATION OF PROBLEM

NEXT -- Continue to next step.

11. REPAIR OR REPLACE

NEXT -- Continue to next step.

12. CONFIRMATION TEST

NEXT -- END