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.

  3. Raise the vehicle.
  4. Suitably support the vehicle.

  5. Remove the ignition coils from the module.
  6. Refer to Ignition Coil On-Vehicle Service in Section 6.


    Object Number: 17071  Size: SH
  7. Remove the module from the assembly plate.

Installation Procedure


    Object Number: 17071  Size: SH
  1. Install the module to the assembly plate.
  2. Install the ignition coils.
  3. Refer to Ignition Coil On-Vehicle Service in Engine Electrical.

  4. Lower the vehicle
  5. Connect the negative battery cable.