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Home >> Jeep >> 2014 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Communication - Non-DTC Based Diagnostics >> Diagnosis And Testing >> No Response From TCM (Transmission Control Module) (6F24) >> Diagnostic Test

Diagnostic Test

  1. TEST FOR INTERMITTENT CONDITION 
    NOTE:

    Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.

    1. Turn the ignition on.
      NOTE:

      Make sure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.

    2. With the scan tool, select ECU View.
      NOTE:

      A red "X" will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network.

      NOTE:

      Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding.

      Does the scan tool display a red "X" next to the module?

      Yes 

      • Go To  2

      No 

      • The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
  2. (A952) FUSED B(+) CIRCUIT OPEN OR SHORTED 
    1. Turn the ignition off.
    2. Disconnect the TCM C1 harness connector.
    3. Using a 12-volt test light connected to ground, check the (A952) Fused B(+) circuits.

      Does the test light illuminate brightly for each circuit?

      Yes 

      • Go To  3

      No 

      • Repair the (A952) Fused B(+) circuit for an open or short.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .
  3. (Z906) GROUND CIRCUIT OPEN 
    1. Using a 12-volt test light connected to 12-volts, check each (Z906) ground circuits.

      Does the test light illuminate brightly for each circuit?

      Yes 

      • Go To  4

      No 

      • Repair the (Z906) ground circuit for an open.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .
  4. (T16) TRANSMISSION CONTROL OUTPUT CIRCUITS OPEN OR SHORTED 
    1. Turn the ignition on.
    2. Using a 12-volt test light connected to ground, check the (T16) Transmission Control Output circuit.

      Does the test light illuminate brightly?

      Yes 

      • Go To  5

      No 

      • Repair the (T16) Transmission Control Output circuit for an open or short.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .
  5. (D65) CAN C BUS (+) CIRCUIT OPEN 
    1. Turn the ignition off.
    2. Disconnect the TIPM C3 harness connector.
    3. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C3 harness connector and the TCM C1 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  6

      No 

      • Repair the (D65) CAN C Bus (+) circuit for an open.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .
  6. (D64) CAN C BUS (-) CIRCUIT OPEN 
    1. Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C3 harness connector and the TCM C1 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Replace and program the Transmission Control Module in accordance with the Service Information.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .

      No 

      • Repair the (D64) CAN C Bus (-) circuit for an open.
      • Perform the TRANSMISSION VERIFICATION TEST. Refer to appropriate Diagnostic Information .
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