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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> 545RFE Automatic Transmission - Electrical Diagnostics >> Automatic Transmission 545RFE - Electrical Diagnostics >> DTC Troubleshooting >> P0711-Transmission Temperature Sensor Performance >> Diagnostic Test

Diagnostic Test

  1. 1) DETERMINE IF RELATED DTCS ARE PRESENT 

    With the scan tool, check Transmission DTCs.

    Are there any other related Transmission Temperature Sensor DTCs present? 

    Yes 

    1. Refer to the DIAGNOSTIC CODE INDEX table and perform the appropriate symptom.

    No 

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

    With the scan tool, read DTCs.

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

    Yes 

    1. Go to  3).

    No 

    1. Go to  4).
  3. 3) TRANSMISSION TEMPERATURE SENSOR 

    Turn the ignition off to the lock position.

    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 can result in personal injury or death.
    NOTE: Failure to remove the Starter Relay can cause a Transmission - No Response condition.

    Install the Transmission Simulator, Miller tool #8333.

    Ignition on, engine not running.

    With the Transmission Simulator, turn the Input/Output switch to OFF.

    With the scan tool, monitor the Transmission Temperature voltage while turning the Thermistor Voltage switch to all three positions on the Transmission Simulator.

    Compare the scan tool readings to the voltage readings listed on the Transmission Simulator.

    Do the readings on the scan tool match the Transmission Simulator readings ± 0.2 volts? 

    Yes 

    1. Replace Transmission Solenoid/TRS Assembly per the Service Information.
    2. Perform 45RFE/545RFE 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. If no problems are found, replace the PCM per the Service Information. With the scan tool, perform Quick Learn.
    2. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST .
  4. 4) CHECK THE 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 Event Data to help identify the conditions in which the DTC was set.

    Were there any problems found? 

    Yes 

    1. Repair as necessary.
    2. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST .

    No 

    1. Test Complete.
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