Document ID# 1230467
1998 Saturn SL2/SC2/SW2 		 

Powertrain Control Module (PCM) Replacement

Removal Procedure

    Object Number: 880473 Size: SH
    Click here for detailed picture of above image.

    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
    Click here for detailed picture of above image.
  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
    Click here for detailed picture of above image.

    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
    Click here for detailed picture of above image.
  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
    Click here for detailed picture of above image.
  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
    Click here for detailed picture of above image.
  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
    Click here for detailed picture of above image.
  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.
  Document ID# 1230467
1998 Saturn SL2/SC2/SW2