Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR RELATED DTCS
1. With the scan tool, read DTCs.
  Are there any TIPM TCM Power Control Circuit or TCM Power Input DTCs present?
  
  Yes
  - Refer to appropriate Electrical Diagnostic Information and perform the appropriate diagnostic procedure .
  No
  - Go To 2.
CHECK THE 4C SOLENOID USING THE TRANSMISSION SIMULATOR
1. Turn the ignition off to the lock position.
2. Remove the Ignition Switch Feed fuse from the TIPM.
  CAUTION:
  Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being started in gear.
  
  WARNING:
  The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury.
3. Install Transmission Simulator (special tool #8333A, Simulator, Transmission).
4. Ignition on, engine not running.
5. With the scan tool, clear Transmission DTCs.
6. With the scan tool, actuate the 4C Solenoid.
7. Monitor the 4C Solenoid LED on the Transmission Simulator.
  Did the 4C Solenoid LED on the Transmission Simulator blink on and off?
  
  Yes
  - Go To 3.
  No
  - Go To 5.
CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY
1. With the Transmission simulator still connected, continue to actuate the 4C solenoid for two minutes.
2. After two minutes of actuation, with the scan tool, stop the actuation and check for transmission DTCs.
  Did the DTC P0770 reset during the actuation test?
  
  Yes
  - Go To 5.
  No
  - Go To 4.
WIGGLE TEST WITH TRANSMISSION SIMULATOR
1. With the Transmission simulator still connected, continue to actuate the 4C solenoid for another two minutes while wiggling the related wiring harness and connectors.
2. With the scan tool, stop the actuation and check for transmission DTCs.
  Did the DTC P0770 reset during the actuation test?
  
  Yes
  - Repair wiring harness or connectors as necessary.
  - Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .
  No
  - Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Note: Do NOT replace the entire Valve Body.
  - Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .
CHECK THE (T259) 4C SOLENOID CONTROL CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT

Fig 1: Measuring Resistance Between 4C Solenoid Control Circuit & All Other Circuits In Transmission Solenoid/TRS Assembly Harness Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off to the lock position.
2. Disconnect the Transmission Simulator (special tool #8333A, Simulator, Transmission).
3. Disconnect the PCM harness connectors.
4. Measure the resistance between the (T259) 4C Solenoid Control circuit and all other circuits in the Transmission Solenoid/TRS Assembly harness connector.
  Is the resistance below 5.0 Ohms between the (T259) 4C Solenoid Control circuit and any other circuit(s) in the Transmission Solenoid/TRS Assembly harness connector?
  
  Yes
  - Repair the (T259) 4C Solenoid Control circuit for a short to another circuit(s).
  - Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .
  No
  - Go To 6.
CHECK THE (T259) 4C SOLENOID CONTROL CIRCUIT FOR AN OPEN

Fig 2: Checking 4C Solenoid Control Circuit For Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (T259) 4C Solenoid Control circuit between the Transmission Solenoid/TRS Assembly harness connector and the appropriate terminal of the PCM C2 harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (T259) 4C Solenoid Control circuit for an open.
  - Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .
  No
  - Go To 7.
CHECK THE (T259) 4C SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND

Fig 3: Checking 4C Solenoid Control Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (T259) 4C Solenoid Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (T259) 4C Solenoid Control circuit for a short to ground.
  - Perform the appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .
  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 appropriate TRANSMISSION VERIFICATION TEST. Refer to 68RFE TRANSMISSION VERIFICATION TEST .