AWD Bar Code Identification

The AWD  system on this vehicle is equipped with a bar coded active torque coupling solenoid to reduce the tolerance of electrical current to torque delivered to the active torque coupling solenoid. The active torque coupling solenoid bar code label can be found on the bottom of the Rear Drive Unit (RDU). The PCM  uses this bar code information to match the clutch characteristics of the active torque coupling 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  needs to be configured with the existing active torque coupling solenoid bar code information. If the rear drive axle need to be replaced, the existing PCM  will need to be configured with the new active torque coupling solenoid bar code information. Carry out the AWD  Drive Cycle.