W/O Smart Key System

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM (w/o Smart Key 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 Engine Immobiliser System (W/O Smart Key System).

PROCEDURE

1. CHECK DTC OUTPUT

(a) Clear the DTCs Engine Immobiliser System (w/o Smart Key System).

(b) Recheck for DTCs.

OK:

DTC B279C is not reoutput.

Result:





B -- REPLACE ECM Removal

A -- REPLACE ECM Removal

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