P1612

P1612 CHAIN OF ECM-IMMU

Description
BCM performs the ID verification with ECM that allows the engine to start. Start the engine if the ID is OK. ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if ignition switch is turned ON.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

Step 1:

Diagnosis Procedure

Step 1-2: