Transmission Internal Wiring Harness: Removal

All Transmission Case Harnesses 

1. With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting - Overview .

   RWD (rear wheel drive) Transmission Case Harnesses 

2. Remove the transmission support insulator. Refer to: Transmission Support Insulator .
3. Remove the bolts and the transmission support bracket.

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   4WD (four-wheel drive) Transmission Case Harnesses 

4. Remove the transfer case. Refer to: Transfer Case .

   All Transmission Case Harnesses 

5. NOTE: If equipped.

   Remove the bolt.

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6. Remove the bolt, nuts and position aside the transmission fluid cooler.

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7. Position aside the park manual release cable.
   1. Disconnect the rod from the manual control lever.
   2. Remove and discard the bolts and position aside the cable assembly.

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8. Using a 10x25 mm bolt, install the special tool. Use Special Service Tool: 307-625 Fixture, Bench Mounting.

   Torque: 159 lb.in (18 Nm)

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9. Using an adjustable stand, support the rear of the transmission. Use the General Equipment: Vehicle/Axle Stands

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10. 1. Slide the safety lock out.
    2. Press the connector tab in.
    3. Rotate the locking arm up and disconnect the transmission electrical connector.

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11. Remove the main control valve body. Refer to: Main Control Valve Body .
12. Unlock and disconnect the speed sensors.
    1. Intermediate Speed Sensor A (ISSA)
    2. TSS sensor
    3. Intermediate Speed Sensor B (ISSB)
    4. OSS sensor

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13. Disconnect the TR sensor electrical connector.

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14. If equipped, disconnect the transmission fluid auxiliary pump electrical connector.

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15. 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 case.

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16. Remove the bolts and the transmission internal wiring harness.

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    Main Control Valve Body Harnesses 

17. Remove the main control valve body. Refer to: Main Control Valve Body .
18. 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.

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19. Disconnect the internal wiring harness electrical connectors.
    • Slide the plastic lock to the unlock position. While pressing the plastic tab, disconnect the electrical connector.

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20. Release the retainer and remove the internal wiring harness assembly.

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