How To Proceed With Troubleshooting

LIGHTING SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING

The Techstream can be used at step 4, 5, 6, 12.
1. VEHICLE BROUGHT TO WORK SHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
(a) Confirm problem symptoms.
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 the 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 9
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