Initial Inspection and Diagnostic Overview

LIGHTING: 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. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

NEXT -- Continue to next step.

3. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF 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.

5. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Pinout Values and Diagnostic Parameters

(b) 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