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 AN ACTIVE DTC
- With the scan tool, read TCM DTCs and record on the repair order.
- Record the Event Data and Environmental Data.
- With the scan tool, erase DTCs.
- 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.
- With the scan tool, read TCM DTCs.NOTE:
If there are any other Engine and/or Transmission DTCs, diagnosis those first.
Did the DTC return?
Yes
- Go To 2
No
- Go To 5
- CHECK THE TORQUE CONVERTER CLUTCH (TCC) OPERATION
- With the scan tool, erase TCM DTCs.
- Road test the vehicle in a condition that will enable TCC lock up.
- With the scan tool, record the Engine speed and the Transmission Input speed during TCC lock up.
- Using the Setting Conditions listed above, calculate the TCC slip RPM.
Is the TCC slip RPM greater than or equal to 200 RPM?
Yes
- Go To 3
No
- Go To 4
- CHECK INTERNAL TRANSMISSION
- Turn the ignition off.
- Remove the Transmission oil pan.
- Check the internal transmission harness, pins, terminals, and connectors for shorts, corrosion, damage, or pushed out terminals.
- Visually inspect the valve body for debris, damage or leaking hydraulic paths.
- Visually inspect for sticking or binding Control Valve(s).
Were any problems found?
Yes
- Repair as necessary.
- Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
No
- Replace the Torque Converter in accordance with the Service Information.
- Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
- CHECK RELATED HARNESS CONNECTIONS
- Disconnect all TCM harness connectors.
- Disconnect all related in-line harness connections (if equipped).
- Disconnect the related component harness connectors.
- 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.
- Reconnect all TCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
- Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
- With the scan tool, erase DTCs.
- 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.
- 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.
- CHECK WIRING AND CONNECTORS
- The conditions necessary to set the DTC are not present at this time.
- Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
- Wiggle the wires while checking for shorted and open circuits.
- Check for any Service Bulletins that may apply.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the TRANSMISSION VERIFICATION TEST. Refer to AS69RC TRANSMISSION VERIFICATION TEST .
No
- Test complete.