Initial Inspection and Diagnostic Overview

LIGHTING: LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING

The Techstream can be used at steps 4, 5, 6 and 13.
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. SYMPTOM SIMULATION
NEXT -- Continue to next step.
5. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM
(a) Check for the DTC output.
-- MULTIPLEX DTC OUTPUT (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM")
-- NO MULTIPLEX DTC (GO TO STEP 6)
6. DTC CHECK
-- MALFUNCTION CODE (GO TO STEP 7)
-- NORMAL SYSTEM CODE (GO TO STEP 8)
7. DTC CHART
-- GO TO STEP 10
8. PROBLEM SYMPTOMS TABLE
NEXT -- Continue to next step.
9. TERMINALS OF ECU
NEXT -- Continue to next step.
10. CIRCUIT INSPECTION
NEXT -- Continue to next step.
11. IDENTIFICATION OF PROBLEM
NEXT -- Continue to next step.
12. REPAIR OR REPLACE
NEXT -- Continue to next step.
13. CONFIRMATION TEST
NEXT -- END