GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1225011  Size: SH
  1. Disconnect the engine control module (ECM) connector.

  2. Object Number: 1225003  Size: SH
  3. Remove the ECM bolts and the ECM.

Installation Procedure


Object Number: 1225062  Size: SH

Notice: Refer to Fastener Notice in the Preface section.

Important: If disconnecting the battery cable to the ECM, the idle air controI (AC) valve reset procedure should be performed.

Install the ECM with the bolts.

Tighten
Tighten the ECM mounting bolts to 6-8 N·m (53-71 lb in).