Diesel Data: Automotive Repair

How To Proceed With Troubleshooting








THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use this procedure to troubleshoot the theft deterrent system.
- *: Using the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
NEXT -- Continue to next step.

3. INSPECT FOR DTC*
(a) Use the Techstream to check for DTC B1269 Theft Deterrent System.
Result:






B -- GO TO DIAGNOSTIC TROUBLE CODE CHART
A -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Result:






B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

5. SYMPTOM SIMULATION
NEXT -- Continue to next step.

6. PROBLEM SYMPTOMS TABLE
Result:






B -- Go to step 8
A -- Continue to next step.

7. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
(a) System description Theft Deterrent System
(b) Terminals of ECU Theft Deterrent System.
(c) Data List/Active Test Theft Deterrent System.
8. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.

9. CONFIRMATION TEST
NEXT -- END