AWD Bar Code Identification

The RDU uses an actuator motor to control the RDU clutch, in turn applying drive torque to the rear axles. Due to response rate differences within the AWD hardware, the AWD module must be programmed with the response rate of the RDU coupling any time the AWD module or the RDU is replaced. This can be done by programming the RDU coupling bar code data into the AWD module. The AWD module uses this bar code information to match the clutch characteristics of the RDU coupling with the desired output torque. If the bar code information does not match the AWD module information, driveline damage or driveability concerns can occur. Therefore, if the RDU or AWD module needs to be replaced, the new unit needs to be configured using coupling bar code information.