GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Astro - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Ignition Control Module Replacement

Removal Procedure

    Object Number: 690078 Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Disconnect the electrical connector (3).
  3. Remove the screws (4) holding the ignition control module (2) and the heat sink (1) to the bracket.
  4. Remove the ignition control module and the heat sink.

Installation Procedure

    Object Number: 690078 Size: SH

    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.

  1. Install the ignition control module (2) and the heat sink (1) on the bracket with the screws (4).

    2. Tighten
    Tighten the screws to 3.5 N·m (31 lb in).

  2. Reconnect the electrical connectors (3).
  3. Install the engine cover. Refer to Engine Cover Replacement .
  4. Refer to Control Module References for the programming and setup information.