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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (DTCS P128D To U1107 (TIPM)) >> P128D-TCM Power Control Circuit 2 Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK IF THE DTC IS ACTIVE 
    1. Ignition on, engine not running.
    2. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go to step  2

      No 

      • Go to step  4
  2. CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT FOR AN OPEN 
    1. Turn the ignition off to the lock position.
    2. Disconnect the TCM C1 harness connector.
    3. Ignition on, engine not running.
    4. Using the scan tool under the TIPM Actuators, actuate the Transmission.
    5. Using a 12-volt test light connected to ground, check the (T16) Transmission Control Output circuits.
      NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

      Does the test light illuminate brightly?

      Yes 

      • Go to step  3

      No 

  3. TOTALLY INTEGRATED POWER MODULE 
    1. Using the schematics as a guide, inspect the wire harness and connectors.
    2. Check the TIPM harness connector terminals for corrosion, damage, or terminal push out.
    3. Pay particular attention to all power and ground circuits.

      Were any problems found?

      Yes 

      No 

  4. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
    3. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
    4. Look for the data to change or for the DTC to reset during the wiggle test.

      Were any problems found?

      Yes 

      No 

      • Test complete.