GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2004 🢒 ION 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - AF23-5 🢒 Transmission Wiring Extension Harness Replacement

Removal Procedure
  1. Raise and support the vehicle. Lifting and Jacking the Vehicle in General Information

    2. Object Number: 886301 Size: SH
  2. Remove the control valve body cover (2). Refer to Control Valve Body Cover Replacement .

    3. Object Number: 749337 Size: SH

    Important: DO NOT damage the wiring harness connectors.

  3. Disconnect the 8 solenoid harness connectors.

    4. Object Number: 749339 Size: SH
  4. Remove the fluid temperature sensor bolt (31).
  5. Remove the fluid temperature sensor clamp (49).

  6. Remove the fluid temperature sensor (36) and O-ring (32).


    Object Number: 866191 Size: SH
  7. Disconnect the shift cable from the transmission control lever.

    8. Object Number: 880085 Size: SH
  8. Remove the transmission control lever (2) and nut.

    9. Object Number: 749329 Size: SH
  9. Remove the park/neutral position switch bolt (79).

    10. Object Number: 749341 Size: SH
  10. With a twisting motion, remove the complete wiring harness assembly.

Installation Procedure

    Object Number: 874478 Size: SH
  1. Apply automatic transmission fluid to a new transmission wiring connector O-ring seal (46).
  2. Install the new transmission wiring connector O-ring seal (46) onto the transmission wiring harness assembly (33).
  3. Install the transmission wiring harness assembly (33) into the transmission case assembly through the wiring harness bore.

    4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 749329 Size: SH
  4. Install the park/neutral position switch bolt (79).

    5. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 880085 Size: SH
  5. Install the transmission control lever (2) and the nut (1).

    6. Tighten
    Tighten the nut to 16 N·m (12 lb ft).


    Object Number: 866191 Size: SH
  6. Install the shift cable to the transmission control lever.

    7. Important: Apply transaxle fluid to the new fluid temperature sensor O-ring.

  7. Install the temperature fluid sensor (36) into the valve body.
  8. Install the fluid temperature sensor clamp (49).

    9. Object Number: 749339 Size: SH
  9. Install the fluid temperature sensor bolt (31).

    10. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  10. Install a new O-ring (32) into the groove of the transaxle fluid temperature sensor (36).
  11. Connect the fluid temperature sensor harness connector.

    12. Object Number: 886301 Size: SH
  12. Install the control valve body cover (2). Refer to Control Valve Body Cover Replacement .
  13. Lower the vehicle.

    14. Important: Do not use AF P/N 21005966 or P/N 21019223, these fluids are not compatible with this transaxle. Use Saturn T-IV P/N 22689186.

  14. Add fluid to the transaxle as necessary. Refer to Transmission Fluid Check .
  15. Start the engine a check for leaks.