Transmission Control Module (TCM): Removal

2009 Mercury Milan Premier, 3.0 1, AWDSECTION Removal
WARNING: This page is about a different car, the 2006 Mercury Montego and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: If a new transaxle or a transmission control module (TCM) is installed, the TCM will need to be reflashed to the latest level calibration available. If the TCM is not reflashed, the wrench light on the dash may illuminate and internal transaxle damage may occur.
  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
  2. Disconnect the battery ground cable. For additional information, refer to REMOVAL AND INSTALLATION .
  3. Remove the air cleaner assembly. For additional information, refer to REMOVAL AND INSTALLATION .
  4. Disconnect the shift cable end.
    Fig 1: Locating Shift Cable End
    G04657339Courtesy of FORD MOTOR CO.
  5. Disconnect the transmission control module (TCM) electrical connector.
    Fig 2: Locating Transmission Control Module (TCM) Electrical Connector
    G04657340Courtesy of FORD MOTOR CO.
  6. Remove the manual control lever nut.
    Fig 3: Locating Manual Control Lever Nut
    G04657341Courtesy of FORD MOTOR CO.
  7. Remove the manual control lever.
    Fig 4: Locating Manual Control Lever
    G04657342Courtesy of FORD MOTOR CO.
  8. Remove the bolts and remove the TCM.
Fig 5: Locating Bolts & TCM
G04657343Courtesy of FORD MOTOR CO.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.