GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Engine 🢒 Engine Electrical 🢒 Manual Shift Shaft Position Switch Replacement

Removal Procedure
  1. Place the shift control lever in Neutral.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

    3. Object Number: 159604 Size: SH
  3. Remove the exhaust muffler to catalytic converter bolts and nuts.
  4. Remove the support transmission with a transmission jack.
  5. Remove the transmission crossmember to body bolts.
  6. Lower the transmission enough to provide access to switch.
  7. Remove the switch cover.

    8. Object Number: 159627 Size: SH
  8. Remove the switch wire harness connector (1) from bracket (2). Use a suitable size tool to pry off.

    9. Object Number: 159630 Size: SH
  9. Remove the transmission control selector shaft nut.
  10. Remove the transmission control selector shaft lever from shaft.

    11. Object Number: 159626 Size: SH
  11. Remove the switch bolts (1).
  12. Remove the switch (2) from transmission.

Installation Procedure

    Object Number: 159626 Size: SH
  1. Install switch (2) to transmission.

    2. Object Number: 159626 Size: SH
  2. Install the switch bolts (1) loosely.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten
    Tighten the switch bolts (1) to 12 N·m (106 lb in).

  3. Install the transmission control selector shaft lever to shaft.

    4. Object Number: 159630 Size: SH
  4. Install the transmission control selector shaft nut.

    5. Object Number: 159627 Size: SH
  5. Install the switch wire harness connector (1) to bracket (2). Use a plastic tie strap if connector clip is broken.
  6. Install the switch cover.
  7. Raise the transmission into position.
  8. Install transmission crossmember to body bolts.

    9. Tighten
    Tighten the transmission crossmember to body bolts to 45 N·m (33 lb ft).

  9. Remove the transmission jack.
  10. Install the exhaust muffler-to-catalytic converter bolts and nuts.

    11. Tighten
    Tighten the exhaust muffler to catalytic converter to 40 N·m (30 lb ft).

  11. Lower the vehicle.

Switch Adjustment
  1. Apply the parking brake.
  2. Position the selector to N.
  3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Remove the transmission cover.
  5. Remove the cover from the selector lever position switch.
  6. Remove the nut form the transmission selector lever shaft.
  7. Disconnect the mode switch electrical connector.
  8. Connect a multimeter to terminal E and H on the mode switch electrical connector.

    9. Object Number: 159626 Size: SH
  9. Loosen both transmission control selector switch bolts.
  10. Rotate the mode switch slightly in both directions to determine the range of electrical contract (approximately 5 degrees).

    11. Object Number: 159632 Size: SH
  11. Position the mode switch in the middle of the contact range.

    12. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten
    Tighten the transmission control selector switch bolts to 12 N·m (106 lb in).

  12. Remove the multimeter and reconnect the wiring harness.
  13. Install the selector intermediate lever to the selector lever shaft.

    14. Tighten
    Tighten the selector intermediate lever nut to 8 N·m (71 lb in).

  14. Install the selector lever position switch cover.
  15. Install the transmission cover.
  16. Lower the vehicle.