How To Proceed With Troubleshooting

LIGHTING SYSTEM:

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. INSPECT COMMUNICATION FUNCTION LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*
(a) Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.

Result





B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. CHECK FOR DTC*

Result





B -- Go to step 7
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 (Pinout Values and Diagnostic Parameters)

(c) DATA LIST / ACTIVE TEST (Scan Tool Testing and Procedures)

NEXT -- Continue to next step.
7. REPAIR OR REPLACE
NEXT -- Continue to next step.
8. CONFIRMATION TEST
NEXT -- END