Engine control module
Once the control module receives a ready signal from CIM via a bus message, it grounds the starter relay control coil. All conditions for immobilization must be fulfilled before the CIM can send a ready signal to ECM.
Once the control module receives a ready signal from CIM via a bus message, it grounds the starter relay control coil. All conditions for immobilization must be fulfilled before the CIM can send a ready signal to ECM.