GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 STS 🢒 Engine 🢒 Engine Controls - 4.6L (LH2) 🢒 Ignition Control Module Replacement - Bank 1

Removal Procedure

    Object Number: 1235151 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 4.6L (LH2).
  2. Remove the ignition coil cover from the cam cover by lifting straight up.

    3. Object Number: 927822 Size: SH
  3. Disconnect the ignition module assembly wiring harness electrical connector.

    4. Object Number: 928257 Size: SH
  4. Remove the ignition module assembly retaining bolts and studs.
  5. Carefully, remove the ignition module assembly.

Installation Procedure

    Object Number: 928257 Size: SH

    Important: Ensure that the spark plug seals are in place when installing the ignition module assembly.

  1. Install the ignition module assembly.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the ignition module retaining bolts and studs.

    3. Tighten
    Tighten the ignition module retaining bolts and studs to 10 N·m (89 lb in).


    Object Number: 927822 Size: SH
  3. Reconnect the ignition module electrical connector.

    4. Object Number: 1235151 Size: SH
  4. Install the ignition coil cover to the cam cover.
  5. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 4.6L (LH2).