GM Service Manual Online
For 1990-2009 cars only

Rear Object Alarm Module Replacement L08

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

    Note: When replacing the control unit, before removing the control unit carry out a "Reset" using the Tech 2. For reprogramming procedures, refer to Control Module References.

  1. Disconnect the battery.
  2. Open the service flap.

  3. Object Number: 1942142  Size: LF
  4. Release the rear electronics module (REC).
  5. • Disconnect the 7 wiring harness plugs (1).
    • Remove the nut (2).
    • Release the retaining lug.

    Object Number: 1942147  Size: SH
  6. Remove the rear object alarm module (REC).
  7. Remove the object alarm module.
  8. • Release the control unit (1).
    • Disconnect the 2 wiring harness plugs (2).

Installation Procedure

  1. Install the object alarm module.
  2. Insert the REC.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the REC.
  5. • Fasten the object alarm module.

    Tighten
    Tighten the nut (2) to 7 N·m (62 lb in).

    • Install the retaining lug.
    • Connect the 9 wiring harness plugs.
  6. Close the service flap.
  7. Connect the battery.
  8. For reprogramming procedures, refer to Control Module References.

Rear Object Alarm Module Replacement PAS

Removal Procedure

  1. When replacing the control unit, before removing the control unit, carry out a "Reset" using the Tech 2. For reprogramming procedures, refer to Control Module References.
  2. Disconnect the battery.
  3. Open the service flap.

  4. Object Number: 1936973  Size: LF
  5. Disconnect the wiring harness plug for the rear electronics module (REC).
  6. • Disconnect the 6 wiring harness plugs (1).
    • Unlock and detach.
  7. Release the rear electronics module (REC).
  8. Remove the nut (arrow).

  9. Remove the REC.
  10. Release the object alarm module.

  11. Remove the object alarm module (2).
  12. • Disconnect the 2 wiring harness plugs.
    • Remove the object alarm module.

Installation Procedure

  1. Install the object alarm module.
  2. • Insert the object alarm module.
    • Connect the 2 wiring harness plugs.
  3. Insert the REC.
  4. Install the object alarm module.

    Caution: Refer to Fastener Caution in the Preface section.

  5. Connect the REC.
  6. Tighten
    Tighten the nut to 7 N·m (62 lb in).

  7. Connect the wiring harness plug for the rear electronics module (REC).
  8. Connect the 6 wiring harness plugs.

  9. Close the service flap.
  10. Connect the battery.
  11. For reprogramming procedures, refer to Control Module References.