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

Removal Procedure

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


    Object Number: 1263894 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. Remove the ECM mounting bracket with the bolt and the nut.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1263894 Size: SH
  1. Install the ECM mounting bracket with the bolt and the nut.

    2. Tighten
    Tighten the ECM mounting bracket bolt and the nut to 12 N·m (9 lb ft).

  2. Install the ECM with the nuts.

    3. Tighten
    Tighten the ECM nut to 12 N·m (9 lb ft).