B2799

DTC B2799 Engine Immobilizer System Malfunction

DESCRIPTION

DTC Detection Condition:

This DTC is output when one of the following occurs: 1) the ECM detects errors in its own communications with the ID code box; 2) the ECM detects errors in the communication lines; or 3) the ECU communication ID between the ID code box 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 5-7:

INSPECTION PROCEDURE