AWD Bar Code Identification

The AWD system on this vehicle uses a solenoid to control the Active Torque Coupling (ATC). Due to response rate differences within the AWD hardware, the PCM must know the torque characterization of the ATC. This can be done by programming the ATC bar code data into the PCM. 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 needs to be configured with the existing ATC solenoid bar code information. If the rear drive axle need to be replaced, the existing PCM needs to be configured with the new ATC solenoid bar code information.