Diagnostic Test

WARNING: This page is about a different car, the 2016 RAM 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR INTERNAL TRANSMISSION PROBLEM
NOTE:
Transmission gear ratio errors can be caused by intermittent speed sensor(s) errors. If there are any speed sensor DTCs set, perform the speed sensor diagnostic test before diagnosing any gear ratio error DTC. Review the event data and the When Monitored and Set Conditions for the DTC and attempt to duplicate the condition the DTC set.
1. Remove the Transmission Oil Pan and inspect for excessive debris or a plugged Transmission Oil Filter.
2. Inspect valve body for foreign material.
  Are there any Transmission mechanical problems present?
  
  Yes
  - Repair as necessary in accordance with the Service Information.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
  No
  - Go To 2
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all TCM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all TCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. 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.
10. With the scan tool, read TCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Transmission Control Module (TCM) in accordance with the Service information. Refer to MODULE, TRANSMISSION CONTROL, REMOVAL .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
  No
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
  - Test complete.