B2799 - Engine Immobilizer System (W/O Smart Key System)

DTC B2799 Engine Immobilizer System

DESCRIPTION

DTC Detection Condition:

This DTC is output when the ECM detects errors in communication with the transponder key ECU, and in the communication lines.

This DTC is also output when an engine start is attempted while the ECU communication ID between the transponder key ECU and the ECM is different.
Before troubleshooting for this DTC, make sure that there is no DTC detected in the transponder key ECU. If there is any key code related DTC detected in the transponder key ECU, repair it first.

Wiring Diagram:

Step 1:

Step 1(Continued)-3:

Step 3(Continued):

INSPECTION PROCEDURE

NOTE:
- If the transponder key ECU assembly is replaced, register the key and ECU communication ID.
- If the ECM is replaced, register the ECU communication ID.