DTC B3623, B3794, P0564, P0565, P0567, P0568, P056C, P0580, P0581, P0589,
P0592, P0593,
P155A-P155C, or P162C
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnos
SEE MORE:
CAUTION: Replacement components must be the correct part number for the
application. Components requiring the use of the thread locking
compound, lubricants, corrosion inhibitors, or sealants are identified in
the service procedure. Some replacement components may come with
these coatings already ap
IMMOBILIZER DESCRIPTION AND OPERATION
Without BTM
The immobilizer system functions are provided by the Immobilizer Control
Module, the Body Control
Module (BCM) and the Engine Control Module (ECM), as well as any modules which
store and report
the environment identifier.
When an ignition key is