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Transmission Control Module (TCM) Wiring Harness: Removal

NOTE: Removal steps in this procedure may contain installation details.
  1. Remove the battery tray. Refer to: Battery Tray - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma . Refer to: Battery Tray - 1.6L EcoBoost (132kW/180PS) - Sigma .
    1. Disconnect the retainers from the battery tray support bracket and position aside the wiring harness.
    2. Remove the nut and position aside the ground cable.

      Torque: 89 lb.in (10 Nm)

    3. Remove the nuts and remove the battery tray support bracket.

      Torque: 18 lb.ft (25 Nm)

    GFD302495Courtesy of FORD MOTOR COMPANY
    1. Remove the wiring bracket bolt.
    2. Pull the wiring bracket up to release the retainer.
    GFD302496Courtesy of FORD MOTOR COMPANY

    Vehicles with 1.0L engine 

  4. Remove the shift cable from the retainer.
    GFD302497Courtesy of FORD MOTOR COMPANY

    All vehicles 

  5. NOTE: Take extra care not to damage the wiring harnesses.

    Disconnect the clutch actuator motor A electrical connector.

    1. Unlock the electrical connector.
    2. Push the electrical connector lock outward.
    3. Disconnect the clutch actuator motor A electrical connector.

    • Disconnect the wiring harness retainers.

    GFD302498Courtesy of FORD MOTOR COMPANY
  6. Disconnect the TR sensor electrical connector.
    GFD302499Courtesy of FORD MOTOR COMPANY
  7. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .
  8. If equipped. Remove the retainers and the underbody shield.
    GFD302500Courtesy of FORD MOTOR COMPANY
    • Disconnect the ISS sensor B electrical connector.

    • Disconnect the ISS sensor A electrical connector.

    • Disconnect the wiring harness retainer and position aside the wiring harness.

    GFD302501Courtesy of FORD MOTOR COMPANY
  10. Remove and discard the foil tape from the OSS sensor electrical connector and wiring harness.
    GFD302502Courtesy of FORD MOTOR COMPANY
  11. Disconnect the OSS sensor electrical connector.
    GFD302503Courtesy of FORD MOTOR COMPANY
  12. Disconnect the clutch actuator motor B electrical connector.

    1. Unlock the electrical connector.
    2. Push the electrical connector lock outward.
    3. Disconnect the clutch actuator motor B electrical connector.

    • Disconnect the wiring harness retainers.

    GFD302504Courtesy of FORD MOTOR COMPANY
  13. NOTE: Make sure that the terminals or pins/sockets of the transmission control module (TCM) and the TCM electrical connector are not bent or damaged.

    Disconnect the TCM electrical connector, the wiring harness retainers and remove the TCM wiring harness.

GFD302505Courtesy of FORD MOTOR COMPANY
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