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TCM Programming-948TE

WARNING: This page is about a different car, the 2014 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

PROGRAMMING THE TRANSMISSION CONTROL MODULE (TCM) 

NOTE:

When replacing a Transmission Control Module (TCM), the TCM must be programmed.

NOTE:

Failure to properly program the TCM may result in the illumination of the Malfunction Indicator Lamp (MIL) and setting DTC(s).

NOTE:

While performing the TCM programming procedure, the vehicle battery must be maintained between 10 and 16 volts. Ambient temperature must be between 0° C (32° F) 60° C (140° F). Vehicle must be in Park with brake pedal depressed.

  1. Using the scan tool and Dealer Connect, download the appropriate TCM flash file to the scan tool.
  2. Turn the Ignition ON, Engine not running.
  3. Make sure the gear selector is in the PARK position.
  4. Apply and hold the brake pedal for the duration of the programming procedure.
  5. Following the menu on the scan tool, program the TCM.
    NOTE:

    If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to align the PROXI configuration data into the new ECU.

    Follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under Body Control Module (BCM) Miscellaneous Functions menu.

    NOTE:

    If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to perform the Valve Body Solenoid Learn procedure. Failure to perform the Valve Body Solenoid Learn procedure will result in reduced shift quality.

    Using a scan tool, follow the on-screen instructions to perform the Valve Body Solenoid Learn procedure.

    NOTE:

    If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to perform the TCM Adaptation procedure. Failure to perform the TCM Adaptation procedure will result in reduced shift quality.

    Perform the TCM ADAPTATION procedure. Refer to TCM ADAPTATION-948TE AND 9HP48 .

  6. With the scan tool, erase DTCs.
  7. With the scan tool, read TCM DTCs.

    Does the scan tool display any DTCs?

    Yes 

    • Perform the appropriate diagnostic procedure(s).

    No 

    • Test Complete
    • Perform the TRANSMISSION VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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