AWD Bar Code Identification

The AWD  system on this vehicle is equipped with a bar coded ATC  solenoid to reduce the tolerance of electrical current to torque delivered by the ATC  solenoid. The ATC  solenoid bar code can be found etched on the ATC  solenoid wire harness connector protruding from the top of the rear drive axle or on the bottom of the RDU  . The PCM  uses this bar code information to match the clutch characteristics of the ATC solenoid with the desired output torque. If the bar code information does not match the PCM  information, driveline damage or driveability concerns can occur. Therefore, if the PCM  needs to be replaced, the new PCM  will need to be configured with the existing ATC  solenoid bar code information. If the rear drive axle need to be replaced, the existing PCM  will need to be configured with the new ATC  solenoid bar code information. Carry out the AWD DRIVE CYCLE .