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Home >> Chrysler >> 2009 >> Sebring Base, 2D Convertible, ED3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 41TE Automatic Transmission) >> DTC Troubleshooting >> P0871-Od Pressure Switch Rationality >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. CHECK IF RELATED TCM DTCS ARE PRESENT 
    1. With the scan tool, read DTCs

      Are there any Transmission Control Relay, TCM Power Input, or TIPM TCM Power Control circuit DTCs present also?

      Yes 

      No 

      • Go to step  2
  2. CHECK FOR LOSS OF PRIME DTC 
    1. With the scan tool, read DTCs

      Is the DTC P0944 present also?

      Yes 

      No 

      • Go to step  3
  3. CHECK TO SEE IF P0841 IS CURRENT 
    1. With the scan tool, read PCM DTCs

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

      Yes 

      • Go to step  4

      No 

      • Go to step  8
  4. CHECK THE PCM AND WIRING 
    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 the Transmission Simulator 8333A and the Electronic Transmission Adapter kit.
      NOTE: Check connectors - Clean/repair as necessary.
    4. Ignition on, engine not running.
    5. With the Transmission Simulator, turn the Pressure Switch selector to OD.
    6. With the scan tool, monitor the OD Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator.

      Did the OD Pressure Switch state change?

      Yes 

      No 

      • Go to step  5
  5. (T9) OD PRESSURE SIGNAL CIRCUIT OPEN 
    Fig 1: Checking OD Pressure Signal Circuit
    GC0124008Courtesy of CHRYSLER LLC
    1. Turn the ignition off to the lock position.
    2. Disconnect the PCM C4 harness connector.
    3. Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.
      NOTE: Check connectors - Clean/repair as necessary.
      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 PCM Pinout Box 8815 to perform diagnosis.
    4. Measure the resistance of the (T9) OD Pressure Signal circuit between the Transmission Solenoid/Pressure Switch 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. (T9) OD PRESSURE SIGNAL CIRCUIT SHORT TO GROUND 
    Fig 2: Checking OD Pressure Signal Circuit
    GC0124009Courtesy of CHRYSLER LLC
    1. Measure the resistance between ground and the (T9) OD Pressure Signal circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Go to step  7
  7. (T9) OD PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE 
    Fig 3: Checking OD Pressure Signal Circuit
    GC0124010Courtesy of CHRYSLER LLC
    1. Ignition on, engine not running.
    2. With the scan tool in the TIPM, actuate the TCM output.
    3. Measure the voltage of the (T9) OD Pressure Signal circuit.

      Is the voltage above 0.5 of a volt?

      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. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. 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 40/41TE VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  8. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set the 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.

      Were there any problems found?

      Yes 

      No 

      • Test Complete.
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