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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> (Powertrain Control Module (Pcm) - Electrical Diagnostics - 545RFE Automatic Transmission) >> DTC Troubleshooting >> P1775-Solenoid Switch Valve Latched In TCC Position >> Diagnostic Test

Diagnostic Test

  1. DETERMINING IF RELATED DTCS ARE PRESENT 
    1. With the scan tool, read DTCs

      Is the DTC P0841 present also?

      Yes 

      No 

      • Go to step  2
  2. CHECK IF THE DTC IS CURRENT 
    1. With the scan tool, read DTCs.

      Is the status Active or is the Starts Since Set counter 2 or less for this DTC?

      Yes 

      • Go to step  3

      No 

      • Go to step  6
  3. CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR 
    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 the Transmission Simulator 8333.
    4. Ignition on, engine not running.
    5. With the Transmission Simulator, turn the Pressure Switch selector switch to L/R.
    6. With the scan tool, monitor the L/R Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator.

      Did the state of the L/R Pressure Switch change while pressing the Pressure Switch Test button?

      Yes 

      • Go to step  4

      No 

      • Go to step  5
  4. SOLENOID SWITCH VALVE STICKING 
    1. Turn the ignition off to the lock position.
    2. Remove the Transmission Oil Pan in accordance with the Service Information.
    3. Remove the Transmission Valve body in accordance with the Service Information.
    4. Inspect the Solenoid Switch Valve and Plugs for sticking.

      Is the Solenoid Switch Valve or Plugs sticking?

      Yes 

      No 

  5. CHECK THE L/R PRESSURE SIGNAL CIRCUIT FOR A SHORT TO OTHER CIRCUITS 
    Fig 1: Checking L/R Pressure Control Circuit For A Short To Another Circuit
    GC0106923Courtesy of CHRYSLER LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the Transmission Solenoid/TRS Assembly harness connector.
    3. Disconnect all PCM harness connectors.
    4. Measure the resistance between the (T50) L/R Pressure Signal circuit and all other circuits in the Transmission Solenoid/TRS Assembly harness connector.

      Is the resistance below 5.0 Ohms between the (T50) L/R Pressure Signal circuit and all other circuit(s) in the Transmission Solenoid/TRS Assembly harness connector?

      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 
  6. 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 

      No 

      • Test Complete.
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