Diagnostic Test

CHECK FOR TIPM TCM DTCS
1. With the scan tool, read DTCs.
  Are there any TCM Power Control DTCs present?
  
  Yes
  - Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing and perform the appropriate diagnostic procedure.
  No
  - Go to step 2
CHECK TO SEE IF DTC P0890 IS PRESENT
1. With the scan tool, Check the Starts Since Set counter for P0890.
  NOTE: This counter only applies to the last DTC set.
  
  Is the "Starts Since Set" counter set at 0?
  
  Yes
  - Go to step 3
  No
  - Go to step 5
CHECK THE PRESSURE SWITCH SENSE CIRCUITS FOR A SHORT TO VOLTAGE

Fig 1: Checking Transmission Solenoid/TRS Assembly Circuits
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the PCM C4 harness connector and connect the PCM Pinout Box 8815.
3. Disconnect the Transmission Solenoid/TRS Assembly harness connector.
  CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis.
4. Ignition on, engine not running.
5. With the scan tool under TIPM, actuate the Transmission.
6. Measure the voltage of the (T147) 2C, (T48) 4C, (T50) LR, (T9) OD, and (T29) UD Pressure Switch Sense circuits in the PCM Pinout Box 8815.
  Is the voltage above 0.5 of a volt on any of the measured circuits?
  
  Yes
  - Repair the (T147) 2C, (T48) 4C, (T50) LR, (T9) OD, and/or (T29) UD Pressure Switch Sense circuit(s) for a short to voltage.
  - Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
  No
  - Go to step 4
CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY

Fig 2: Checking Transmission Solenoid/TRS Assembly Circuits
Courtesy of CHRYSLER LLC
1. With the scan tool under TIPM, stop the Transmission actuation.
2. Turn the ignition off.
3. Reconnect the Transmission Solenoid/TRS Assembly harness connector.
4. Ignition on, engine not running.
5. Measure the voltage of the (T147) 2C, (T48) 4C, (T50) LR, (T9) OD, and (T29) UD Pressure Switch Sense circuits in the PCM Pinout Box 8815.
  Is the voltage above 0.5 of a volt on any of the sense circuits?
  
  Yes
  - Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Refer to SOLENOID, PRESSURE CONTROL .
  - Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
  No
  - Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn.
  - Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set this 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. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.
  Where there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the 545RFE TRANSMISSION VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure .
  No
  - Test Complete.