B2799

DTC B2799 Engine Immobilizer System

DESCRIPTION

DTC Detection Condition:

This DTC is output when one of the following occurs: 1) the ECM detected errors in its own communications with the immobilizer code ECU; 2) the ECM detects errors in the communication lines; or 3) the ECU communication ID between the immobilizer code ECU and ECM is different and an engine start is attempted. Before troubleshooting for this DTC, make sure no certification ECU DTCs are present. If present, troubleshoot the certification ECU DTCs first.

Wiring Diagram:

Step 1:

Step 1(continued)-4:

Step 4(continued):

INSPECTION PROCEDURE