Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read DTCs and record on the repair order.
2. Record the Environmental Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read Drivetrain Control Module (DTCM) DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Rear Driveline Module (RDM) Actuator in accordance with the Service Information. Refer to ACTUATOR, AXLE SHAFT, REMOVAL AND INSTALLATION .
  - Go To 2
  No
  - Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC
1. With the scan tool, erase DTCs.
2. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
3. With the scan tool, read DTCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the RDM in accordance with the Service Information. Refer to REMOVAL AND INSTALLATION .
  - Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .
  No
  - Perform the DTCM VERIFICATION TEST. Refer to DTCM VERIFICATION TEST .