B2799

DTC B2799 ENGINE IMMOBILIZER SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detection Condition:

This DTC is output when the ECM detects errors in communication between the transponder key ECU assy and the ECM, or 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 assy 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 a key code-related DTC detected in the transponder key ECU assy, repair it first.

Wiring Diagram:

Step 1 - 2:

INSPECTION PROCEDURE