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Home >> Ford >> 2024 >> E-Transit Cutaway >> Repair and Diagnosis >> External Pages >> Different car >> Section 151 (Automatic Transmission - 10-Speed Automatic Transmission - 10R80 (Symptom Diagnosis - Installation)) >> Removal And Installation >> Transmission Internal Wiring Harness >> Removal

Transmission Internal Wiring Harness: Removal

WARNING: This page is about a different car, the 2024 Ford Transit-350 HD, 2024 Ford Transit-350, 2024 Ford Transit-250, and 2024 Ford Transit-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the main control valve body. Refer to: Main Control Valve Body .

    Main Control Valve Body Harness 

  2. Disconnect the internal wiring harness.

    1. Slide the plastic lock to the unlock position. Disconnect the TCC solenoid and the LPC solenoid electrical connectors. If equipped, disconnect the park lock pawl solenoid electrical connector.
    2. Remove internal wiring harness retaining bolt.
    3. Disconnect the internal wiring harness retainer.

    GFD839574Courtesy of FORD MOTOR COMPANY
  3. Disconnect the internal wiring harness electrical connectors.

    • Slide the plastic lock to the unlock position. While pressing the plastic tab, disconnect the electrical connector.

    GFD839575Courtesy of FORD MOTOR COMPANY
  4. Release the retainer and remove the internal wiring harness assembly.
    GFD839576Courtesy of FORD MOTOR COMPANY

    Transmission Case Harness 

    1. Slide the safety lock out.
    2. Press the connector tab in.
    3. Rotate the locking arm up and disconnect the transmission electrical connector.
    GFD839577Courtesy of FORD MOTOR COMPANY
  6. NOTE: To disconnect the electrical connectors, slide the plastic lock to the unlocked position. While pressing the plastic tab, disconnect the electrical connector.

    Unlock and disconnect the speed sensors.

    1. TSS sensor
    2. Intermediate speed A sensor
    3. Intermediate speed B sensor
    4. OSS sensor

    GFD839370Courtesy of FORD MOTOR COMPANY
  7. Disconnect the TR sensor electrical connector.
    GFD839578Courtesy of FORD MOTOR COMPANY
  8. If equipped, disconnect the transmission fluid auxiliary pump electrical connector.
    GFD839579Courtesy of FORD MOTOR COMPANY
    1. Assemble the special tool.Use Special Service Tool: 307-746 Remover, Transmission Wiring Harness Connector.
    2. Position the special tool onto the transmission internal wiring harness connector.
    GFD839580Courtesy of FORD MOTOR COMPANY
  10. Using the special tool, disconnect the transmission internal wiring harness connector from the transmission case.

    1. Slide the special tool over the connector flush with the transmission case.Use Special Service Tool: 307-746 Remover, Transmission Wiring Harness Connector.
    2. Use the special tool to push the connector through the transmission case.

    GFD839581Courtesy of FORD MOTOR COMPANY
  11. Remove the bolts and the transmission internal wiring harness.
GFD839582Courtesy of FORD MOTOR COMPANY
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