Rear Driveline Module (RDM) Operation

Rear Driveline Module (RDM) operation diagnosis. Refer to the following chart:

CONDITION	POSSIBLE CAUSES	CORRECTION
No All Wheel Drive (AWD) in forward or reverse directions, propeller shaft turning.	Check Torque Vectoring Module (TVM) for Diagnostic Trouble Codes (DTC's).	Review TVM diagnostic information.
	RDM failure.	Diagnose and repair or replace as necessary.
No AWD in forward or reverse directions, propeller shaft not turning.	Check TVM for DTC's.	Review TVM diagnostic information.
	Transfer case component failure.	Diagnose and repair or replace as necessary.
Vibration at all speeds, continuous torque transfer.	Mis-matched tires, worn tires on front axle.	Replace worn or incorrect (mis-matched) tires with same make and size.