Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. With the scan tool, read Transmission Control Module (TCM) DTCs and record on the repair order.
2. Record the Event Data and Environmental Data.
3. With the scan tool, erase DTCs.
  NOTE:
  Stop the vehicle and place shifter into PARK position multiple times during the next step.
4. Using the recorded Event and 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 TCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Go To 4
CHECK TRANSMISSION FLUID LEVEL
1. Check the Transmission fluid level in accordance with the Service Information. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
  Is the transmission fluid level correct?
  
  Yes
  - Replace the Transmission in accordance with the Service Information. Refer to TRANSMISSION, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Go To 3
REPAIR LEAKS AND CHECK FOR DTCS
1. Repair any Transmission fluid leaks and fill Transmission to the proper level. Refer to FLUID AND FILTER, STANDARD PROCEDURE .
2. With the scan tool, erase DTCs.
  NOTE:
  Stop the vehicle and place shifter into PARK position multiple times during the next step.
3. Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
4. With the scan tool, read TCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Transmission in accordance with the Service Information. Refer to TRANSMISSION, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Test Complete.
CHECK WIRING AND CONNECTORS
1. The conditions necessary to set the DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle the wires while checking for shorted and open circuits.
4. Check for any Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
  No
  - Test complete.