GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the negative battery cable.
  2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.


    Object Number: 10778  Size: SH
  3. Remove the PCM retainer attaching bolts (2).

  4. Object Number: 2295  Size: SH
  5. Remove the PCM electrical connector.

  6. Object Number: 10780  Size: SH
  7. Slide the PCM and retainer from the PCM bracket

  8. Object Number: 10781  Size: SH
  9. Remove the retainer from the PCM.

  10. Object Number: 10782  Size: SH

    Notice: Clean the PCM housing of any debris that may cause damage to the PCM circuitry before removing the KS module cover.

  11. Remove the KS module cover.

  12. Object Number: 10783  Size: SH

    Notice: In order to prevent possible electrostatic discharge (ESD) damage to the PCM or KS module, do not touch the connector pins or soldered components on the circuit board. Do not remove the integrated circuit boards from the carrier.

  13. Remove the KS module.

Installation Procedure


    Object Number: 10783  Size: SH
  1. Install the KS module in the KS module socket.

  2. Object Number: 10782  Size: SH
  3. Install the KS module cover.
  4. Tighten
    Tighten the KS module cover screws to 2.8-3.2 N·m (25-28 lb. in.).

    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.


    Object Number: 10781  Size: SH
  5. Slide the PCM into the PCM retainer.

  6. Object Number: 10780  Size: SH
  7. Install the PCM electrical connectors.

  8. Object Number: 2295  Size: SH
  9. Slide the PCM retainer into the PCM bracket slots.

  10. Object Number: 10778  Size: SH
  11. Install the PCM retainer attaching bolts.
  12. Connect the negative battery cable.