DTCM Verification Test
The RDM clutch classification specification is stamped on the RDM. This value is needed to program into the DTCM during the DTCM Replacement routine when a DTCM or RDM assembly have been replaced. Failure to do so will likely result in a DTC. The table below shows the routines that must be run when a repair is made to the AWD system. This should be performed before attempting to verify the repair.
| REQUIRED SCAN TOOL ROUTINES | |
|---|---|
| DTCM MISC FUNCTIONS | REPAIR PERFORMED |
| DTCM REPLACEMENT | When a Drivetrain Control Module is replaced. |
| PTU REPLACEMENT | When a Power Transfer Unit assembly or actuator motor is replaced |
| RDU REPLACEMENT | When a Rear Drive Module assembly is replaced. |
| BCM MISC FUNCTIONS | REPAIR PERFORMED |
| PROXI CONFIGURATION ALIGNMENT | When a DTCM or BCM is replaced. |
- If a PTU or RDM were replaced, verify the correct fluid level in the assembly.
- After the appropriate scan tool routine is performed, turn the ignition on and erase all DTCs.
- Turn the ignition off and close all doors. Wait 30 seconds.
- Operate the vehicle under the conditions that originally set the DTC or caused the symptom. Depending on the failure mode, it may be necessary to test drive the vehicle allowing the PTU to shift between 2WD and AWD modes.
- With the scan tool, read DTCs.
- If a DTC returned, perform the appropriate diagnostic procedure.
- If no DTCs returned, repair is complete.