Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

RELATED TCM POWER INPUT DTCS PRESENT
1. With the scan tool, check DTCs.
  Are there any TIPM TCM Power Control Circuit or TCM Power Input DTCs present?
  
  Yes
  - Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
  No
  - Go To 2.
TRANSMISSION SOLENOID/TRS ASSEMBLY
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, actuate the MS Solenoid.
6. Monitor the MS Solenoid LED on the Transmission Simulator.
  Did the MS Solenoid LED on the Transmission Simulator blink on and off?
  
  Yes
  - Go To 3.
  No
  - Go To 5.
TRANSMISSION SOLENOID/TRS ASSEMBLY
1. With the scan tool, continue to actuate the MS Solenoid for the period of two minutes with the Transmission Simulator still connected.
2. After two minutes of actuation, with the scan tool, stop the actuation and check for transmission DTCs.
  Did the DTC P2706 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.
  - Refer to STANDARD PROCEDURE and perform the 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.
  - Refer to STANDARD PROCEDURE and perform the 68RFE TRANSMISSION VERIFICATION TEST.
(T140) MS SOLENOID CONTROL CIRCUIT SHORT TO OTHER CIRCUITS

Fig 1: Checking MS Solenoid Control Circuit For Open Or Short To Other Circuits
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the Transmission Simulator (special tool #8333A, Simulator, Transmission).
3. Disconnect the PCM C2 harness connector.
4. Measure the resistance between the (T140) MS Solenoid Control circuit and all other circuits in the Transmission Solenoid/TRS Assembly harness connector.
  Is the resistance below 5.0 Ohms between the (T140) MS Solenoid Control circuit and any other circuit(s) in the Transmission Solenoid/TRS Assembly harness connector?
  
  Yes
  - Repair the (T140) MS Solenoid Control circuit for a short to other circuit(s).
  - Refer to STANDARD PROCEDURE and perform the 68RFE TRANSMISSION VERIFICATION TEST.
  No
  - Go To 6.
(T140) MS SOLENOID CONTROL CIRCUIT OPEN

Fig 2: Checking MS Solenoid Control Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (T140) MS Solenoid Control circuit from the Transmission Solenoid/TRS Assembly harness connector to the appropriate terminal of the PCM C2 harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (T140) MS Solenoid Control circuit for an open.
  - Refer to STANDARD PROCEDURE and perform the 68RFE TRANSMISSION VERIFICATION TEST.
  No
  - Go To 7.
(T140) MS SOLENOID CONTROL CIRCUIT SHORT TO GROUND

Fig 3: Checking MS Solenoid Control Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (T140) MS Solenoid Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (T140) MS Solenoid Control circuit for a short to ground.
  - Refer to STANDARD PROCEDURE and perform the 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 the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn.
  - Refer to STANDARD PROCEDURE and perform the 68RFE TRANSMISSION VERIFICATION TEST.