B279C

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: B279C: Theft Deterrent System Presence Detection
B279C - Theft Deterrent System Presence Detection

DESCRIPTION

If an ECM that is incompatible with the engine immobiliser system is installed, the ECM outputs this DTC.





INSPECTION PROCEDURE

NOTICE:
If the ECM is replaced, register the ECU communication ID Programming and Relearning.

PROCEDURE

1. CLEAR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

2. CHECK DTC OUTPUT

(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC B279C output does not reoccur.

Result:





B -- REPLACE ECM Removal

A -- REPLACE ECM Removal

C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting