GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 1997 🢒 SL 🢒 Engine 🢒 Engine Controls - 1.9L 🢒 Powertrain Control Module Replacement

Removal Procedure

    Object Number: 880473 Size: SH

    Important: Record present radio stations and clock time. Disconnect negative battery cable.

  1. Remove I/P upper trim panel outer cover fillers by carefully lifting up at clip locations, starting at the rear above end cap.
  2. Remove I/P bolt caps by carefully prying with a small flat head screwdriver.
  3. Remove I/P upper trim panel screws.

    4. Object Number: 878762 Size: SH
  4. Lift I/P upper trim panel at clip locations on rear edge to disengage clips.
  5. Pull I/P upper trim panel rearward out of clips at bottom of windshield.

    6. Important: Be careful when removing or replacing I/P upper trim panel, not to damage VIN plate.

  6. Remove I/P upper trim panel.

    7. Object Number: 878759 Size: SH

    Important: Be careful when removing or replacing I/P upper trim panel, not to damage upper trim panel seal.

  7. Remove I/P upper trim pad sound insulator.

    8. Object Number: 862898 Size: SH
  8. Disconnect PCM electrical connector from under instrument panel.

    9. Important: Do not pull on the connectors or wires to remove the PCM. This could back out a terminal and cause an intermittent connection.

  9. Loosen PCM attachment out at cross car beam and lift PCM upward (towards windshield) to disengage PCM from ABS/PCM bracket.

Installation Procedure

    Object Number: 862898 Size: SH
  1. Lower PCM into ABS/PCM bracket while guiding attachment stud into slot in cross car beam.

    2. Notice: Torque is critical to preserve the integrity of the plastic insulator on the PCM case. Damage to the PCM can result from over torque of the nut.

  2. Install and tighten nut.

    3. Tighten
    Tighten nut to: 10 N·m (89 lb in)

  3. Install PCM connectors.

    4. Object Number: 866245 Size: SH
  4. Install I/P upper trim pad sound insulator.

    5. Important: Make sure to tuck in all flaps.

    Important: Be sure I/P upper trim panel seal is correctly seated on forward edge before installing upper trim panel.

  5. Install I/P upper trim panel into clips at base of windshield.

    6. Important: Be careful when removing or replacing I/P upper trim panel, not to damage VIN plate.

  6. Lower I/P upper trim panel, making sure I/P upper trim panel alignment tabs interlock with windshield garnish slots.
  7. Push down at clip locations to secure.

    8. Object Number: 880473 Size: SH
  8. Install I/P upper trim panel screws.
  9. Install I/P bolt cap.
  10. Reprogram PCM software and calibrations.
  11. Verify operation. If DTCs are present, refer to that specific code in the Engine Controls section.