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Home >> Chrysler >> 2006 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 ((40TE & 41TE Automatic Transmission - Electrical Diagnostics)) >> Automatic - 40/41TE >> DTC Troubleshooting >> P0869-Line Pressure High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1) CHECK FOR RELATED DTC'S 

    With the scan tool, check for other Transmission DTCs.

    Are there any Line Pressure Sensor or Transmission Relay or TCM Power Input DTCs present also? 

    Yes 

    1. Refer to the applicable Transmission Information and perform the appropriate symptom.

    No 

    1. Go to  2).
  2. 2) CHECK IF THE DTC IS CURRENT 

    With the scan tool, check the STARTS SINCE SET counter for P0869.

    Is the STARTS SINCE SET COUNTER 2 or less? 

    Yes 

    1. Go to  3).

    No 

    1. Go to  9).
  3. 3) CHECK THE PCM AND WIRING 

    Turn the ignition off to the lock position.

    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 personal injury or death.

    Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmission Adapter kit.

    With the Transmission Simulator select the "OFF" position on the "Input/Output Speed" switch.

    Ignition on, engine not running.

    With the scan tool, monitor the Line Pressure during the following step.

    Using the Transmission Simulator, set the rotary switch to each of the 3 line pressure positions.

    NOTE: All three scan tool Line Pressure readings should be steady and ± 14 kPa or 2.0 psi (0.2 volts) of the reading specified on the Transmission Simulator.

    Did the Line Pressure read within ± 14 kPa or 2.0 psi (0.2 volts) in all three positions? 

    Yes 

    1. Go to  4).

    No 

    1. Go to  5).
  4. 4) CHECK THE LINE PRESSURE SENSOR CALIBRATION 

    Turn the ignition off to the lock position.

    Disconnect the Transmission Simulator, Miller tool #8333 and the Electronic Transmission Adapter kit and reconnect all previously disconnected connectors.

    Install the Line Pressure Gauge, Miller tool #C-3293, 0 to 2000 kPa or 0 to 300 psi in the L/R pressure port.

    Start the engine in park.

    Monitor the Line Pressure readings on the scan tool and the pressure gauge.

    Compare the Line Pressure readings between the scan tool and the pressure gauge.

    Is the pressure gauge reading within 34 kPa or 5 psi of the scan tool reading? 

    Yes 

    1. Repair the internal transmission and inspect the Transmission Oil Pump per the Service Information and replace if necessary. If no problem is found, replace the Pressure Control Solenoid.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. Replace the Line Pressure Sensor per the Service information.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .
  5. 5) CHECK THE (T118) PRESSURE CONTROL SOLENOID CONTROL CIRCUIT FOR AN OPEN 
    Fig 1: Checking Pressure Control Solenoid Control Circuit For An Open
    GC0049912Courtesy of CHRYSLER LLC

    Turn the ignition off to the lock position.

    Disconnect the Transmission Simulator, Miller tool #8333.

    Disconnect the Powertrain Control Module 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 Miller tool #8815 to perform diagnosis.

    Measure the resistance of the (T118) Pressure Control Solenoid Control circuit between the Line Pressure Sensor/Variable Force Solenoid Assembly harness connector and the appropriate terminal of Miller tool #8815.

    Is the resistance above 5.0 ohms? 

    Yes 

    1. Repair the (T118) Pressure Control Solenoid Control circuit for an open.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. Go to  6).
  6. 6) CHECK THE (T118) PRESSURE CONTROL SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND 
    Fig 2: Checking Pressure Control Solenoid Control Circuit For A Short To Ground
    GC0049913Courtesy of CHRYSLER LLC

    Measure the resistance between ground and the (T118) Pressure Control Solenoid Control circuit.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (T118) Pressure Control Solenoid Control circuit for a short to ground.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. Go to  7).
  7. 7) CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN 
    Fig 3: Checking The 5-Volt Supply Circuit For An Open
    GC0049909Courtesy of CHRYSLER LLC

    Measure the resistance of the (F856) 5-volt Supply circuit between the Line Pressure Sensor/Variable Force Solenoid Assembly harness connector and the appropriate terminal of Miller tool #8815.

    Is the resistance above 5.0 ohms? 

    Yes 

    1. Repair the (F856) 5-volt Supply circuit for an open.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. Go to  8).
  8. 8) CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    Fig 4: Checking The 5-Volt Supply Circuit For A Short To Ground
    GC0049910Courtesy of CHRYSLER LLC

    Disconnect the PCM C1 harness connector.

    Disconnect the Line Pressure Sensor/Variable Force Solenoid Assembly 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 Miller tool #8815 to perform diagnosis.

    Measure the resistance between ground and the (F856) 5-volt Supply circuit.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Repair the (F856) 5-volt Supply circuit for a short to ground.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. 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 any Service Bulletins that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool perform the Quick Learn procedure.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .
  9. 9) INTERMITTENT WIRING AND CONNECTORS 

    The conditions necessary to set this DTC are not present at this time.

    Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.

    Wiggle the wires while checking for shorted and open circuits.

    With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set.

    Check for any Service Bulletins that may apply.

    Where there any problems found? 

    Yes 

    1. Repair as necessary.
    2. Perform 40/41TE TRANSMISSION VERIFICATION TEST .

    No 

    1. Test Complete.
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