For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the negative battery cable.
2. Disconnect the engine control module (ECM) connectors.
3. Remove the ECM retaining nuts.
4. Remove the ECM from the ECM mount.

### Installation Procedure

1. Position the ECM in place.

Notice: Refer to Fastener Notice in the Preface section.

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

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

3. Connect the ECM connectors.
4. Connect the negative battery cable.
5. Refer to Control Module References for programming and setup information.