Diesel Data: Automotive Repair

How To Proceed With Troubleshooting








SEAT BELT: SEAT BELT WARNING SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:
- Use the following procedures to troubleshoot the seat belt warning system.
- *: Use 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 to the next step.
NEXT -- Continue to next step.
3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM (CAN)*
(a) Use Techstream to check if the CAN Communication System (CAN) is functioning normally.
Result:





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE
HINT: (Problem Symptoms Table).

NEXT -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) DATA LIST / ACTIVE TEST (Scan Tool Testing and Procedures)

(b) Terminals of ECU (Pinout Values and Diagnostic Parameters)

(c) On-vehicle Inspection (Component Tests and General Diagnostics)

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