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Removal - 850RE: Removal

WARNING: This page is about a different car, the 2021 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

The Transmission Control Module (TCM), or Transmission Control Module Assembly (TCMA) is extremely sensitive to Electrostatic Discharge (ESD). Always use a ground strap and follow the ESD guidelines in ELECTROSTATIC DISCHARGE SENSITIVE DEVICES. Failure to follow these instructions may result in damage to the TCM/TCMA.

  1. Raise and support the vehicle. Refer to HOISTING, STANDARD PROCEDURE .
  2. Remove the transmission fluid pan drain plug and allow the transmission fluid to drain.
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  3. Turn the locking mechanism lock (1) of the adapter plug counter-clockwise and disconnect the wire harness connector from the transmission.
    GC0095860Courtesy of CHRYSLER GROUP, LLC
  4. For All Wheel Drive (AWD) vehicles  , support the transmission and remove the rear support bolts (2), the crossmember to body bolts (1) and the crossmember (3).
  5. For All Wheel Drive (AWD) vehicles  Remove the two steering gear to crossmember bolts and allow the steering gear to slightly roll out of the way of the transmission fluid pan bolts.
    GC0152099Courtesy of CHRYSLER GROUP, LLC
  6. All Vehicles  Remove the transmission fluid pan retaining bolts (2).
    NOTE:

    Inspect the gasket for reuse. If the seal is cut or torn, replace the gasket.

  7. Remove the transmission fluid pan (1) and gasket.
    GC0190550Courtesy of CHRYSLER GROUP, LLC
  8. Disconnect the Manual Park Release (MPR) cable (1) from the MPR lever (2).
    GC0152243Courtesy of CHRYSLER GROUP, LLC
  9. Remove the Manual Park Release (MPR) lever retaining nut (2) and remove the lever (1).
    GC0152275Courtesy of CHRYSLER GROUP, LLC
  10. Reinstall the MPR lever (2) 180 degrees offset. Using a tie strap (3), secure the lever into position so the park release fork remains in the same position for valve body assembly installation.
    GC0154626Courtesy of CHRYSLER GROUP, LLC
  11. If equipped, disconnect the Hydraulic Impulse Oil Storage (HIS) connector.
  12. If equipped, remove three HIS bolts (2 and 3) and the accumulator (1).
    GC0152103Courtesy of CHRYSLER GROUP, LLC
  13. Remove the valve body assembly end retainer bolts (3).
  14. Lift the wire harness connector lock (2) to release the internal harness end from inside the transmission for valve body assembly removal.
  15. Remove the output speed sensor retaining bolt (1) and pull the output speed sensor (4) loose from the case.
    GC0152117Courtesy of CHRYSLER GROUP, LLC
  16. Using the (special tool #10377, Remover/Installer, Guide Sleeve) (1) carefully pull the electrical harness insulator (2) straight out from the transmission case (3).
    GC0190541Courtesy of CHRYSLER GROUP, LLC
  17. Remove two bolts and hand install the (special tool #10379, Pins, Valve Body Alignment) (1).
  18. Use an appropriate tool on one of the alignment pins to assist in holding the valve body in position while removing the remaining fasteners.
    GC0169780Courtesy of CHRYSLER GROUP, LLC
  19. Remove remaining valve body assembly retaining bolts.
  20. Carefully lower the valve body assembly from the transmission.
  21. Inspect all surfaces for damage.
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