Diagnostic Test

WARNING: This page is about a different car, the 2015 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE 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.
4. Using the recorded information, 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
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect TCM harness connector C2.
3. Disconnect the Transmission Oil Temperature sensor.
4. Check for continuity between ground and the (T54) Transmission Temperature Sensor circuit at the TCM C2 harness connector.
  Is there continuity between ground and the (T54) Transmission Temperature Sensor circuit?
  
  Yes
  - Repair the (T54) Transmission Temperature Sensor circuit for a short to ground.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to C635 DDCT TRANSMISSION VERIFICATION TEST .
  No
  - Go To 3
CHECK THE TRANSMISSION TEMPERATURE SENSOR
NOTE:
Vehicle should not be driven for a few hours for the following test to be valid.
1. Reconnect the Transmission Oil Temperature Sensor and the TCM C2 harness connector.
2. Turn the ignition on.
3. With the scan tool, compare the Transmission Oil Temperature sensor reading to the Engine Coolant, and Ambient Temperature sensors.
  Does the Transmission Oil Temperature sensor appear skewed from the other sensors?
  
  Yes
  - Replace the Transmission Temperature sensor in accordance with the Service Information.
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to C635 DDCT TRANSMISSION VERIFICATION TEST .
  No
  - Go To 4
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 TCM in accordance with the Service information. Refer to MODULE, TRANSMISSION CONTROL, REMOVAL AND INSTALLATION .
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to C635 DDCT TRANSMISSION VERIFICATION TEST .
  No
  - Perform the TRANSMISSION VERIFICATION TEST. Refer to C635 DDCT TRANSMISSION VERIFICATION TEST .
  - Test complete.