GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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


    Object Number: 1289488  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the engine control module (ECM) wiring harness connector.
  3. Remove the nuts from the ECM mounting bracket.

  4. Object Number: 1289497  Size: SH
  5. Remove the ECM mounting bracket with the bolt and the nut.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1289497  Size: SH
  1. Install the ECM mounting bracket with the bolt and the nut and tighten to 12 N·m (9 lb ft).

  2. Object Number: 1289488  Size: SH
  3. Install the ECM with the nuts and tighten to 12 N·m (9 lb ft).
  4. Refer to Control Module References for programming and setup information.