GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2008 🢒 G3 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Control Module Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1915851 Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the engine control module (ECM) connectors.

    3. Object Number: 1915858 Size: SH
  3. Remove the ECM retaining nuts.
  4. Remove the ECM from the ECM mount.

Installation Procedure

    Object Number: 1915858 Size: SH
  1. Position the ECM in place.

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

  2. Install the ECM to the ECM mount and install the retaining bolts.

    3. Tighten
    Tighten the ECM retaining bolts to 4 N·m (35 lb in).


    Object Number: 1915851 Size: SH
  3. Connect the ECM connectors.
  4. Connect the negative battery cable.
  5. Refer to Control Module References for programming and setup information.