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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Powertrain Control Module (Pcm) - Electrical Diagnostics - 545RFE Automatic Transmission) >> DTC Troubleshooting >> P2706-Ms Solenoid Circuit >> Diagnostic Test

Diagnostic Test

  1. DETERMINE IF RELATED TCM POWER INPUT DTCS ARE PRESENT 
    1. With the scan tool, read Transmission DTCs

      Are there any TCM Power Input DTCs present also?

      Yes 

      No 

      • Go to step  2
  2. TRANSMISSION SOLENOID/TRS ASSEMBLY 
    1. Turn the ignition off to the lock position.
    2. Remove the Starter Relay.
      CAUTION: Removal of the Starter Relay will prevent the vehicle from being started in gear.
      WARNING: The Starter Relay must be removed from the PDC. Failure to do so may result in possible serious or fatal injury.
      NOTE: Failure to remove the Starter Relay can cause a Transmission - No Response condition.
    3. Install Transmission Simulator 8333.
    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 

      No 

      • Go to step  3
  3. 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 step  4

      No 

  4. (T118) MS SOLENOID CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT 
    Fig 1: Checking MS Solenoid Control Circuit For A Short To Another Circuit
    GC0106955Courtesy of CHRYSLER LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the Transmission Simulator 8333.
    3. Disconnect the PCM harness connectors.
    4. Measure the resistance between the (T118) 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 (T118) MS Solenoid Control circuit and any other circuit(s) in the Transmission Solenoid/TRS Assembly harness connector?

      Yes 

      No 

      • Go to step  5
  5. (T118) MS SOLENOID CONTROL CIRCUIT OPEN 
    Fig 2: Checking MS Solenoid Control Circuit For An Open
    GC0106956Courtesy of CHRYSLER LLC
    1. Connect the PCM Pinout Box 8815 to the PCM C4 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.
    2. Measure the resistance of the (T118) MS Solenoid Control circuit between the Transmission Solenoid/TRS Assembly harness connector and the appropriate terminal of the PCM Pinout Box 8815.

      Is the resistance above 5.0 Ohms?

      Yes 

      No 

      • Go to step  6
  6. (T118) MS SOLENOID CONTROL CIRCUIT SHORTED TO GROUND 
    Fig 3: Checking MS Solenoid Control Circuit For A Short To Ground
    GC0106957Courtesy of CHRYSLER LLC
    1. Measure the resistance between ground and the (T118) MS Solenoid Control circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      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, Powertrain Control (PCM) - Standard Procedure .
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