Engine Immobiliser System

DTC B2799/99 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 and the ECM, or on 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 are different.

Before troubleshooting for this DTC, make sure that no DTC is detected for in the transponder key ECU. If any key code-related DTC is detected for the transponder key ECU, repair it first.

Wiring Diagram:

Step 1-2:

INSPECTION PROCEDURE