For 1990-2009 cars

### Removal Procedure

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

1. Record all of the customers radio station presets.
2. Turn OFF all the lamps and accessories.
3. Make sure the ignition switch is in the OFF position.
4. Grasp the engine control module (ECM) and slide the retainer rearward until the retainer disengages from the 4 clips on the battery cover. Reposition the ECM out of the way.
5. Release the side snap retainers (1).
6. Remove the battery box cover (3) from the retaining tabs (2).
7. Remove the battery box cover (3).
8. Loosen the battery negative cable terminal bolt.
9. Remove the battery negative cable from the battery.

### Installation Procedure

Notice: Refer to Fastener Notice in the Preface section.

Important: Clean any existing corrosion from the battery terminal bolt flange and the battery cable end.

1. Install the battery negative cable to the battery.

Tighten
Tighten the battery negative cable terminal bolt to 17 N·m (13 lb ft).

2. Insert the battery box cover (3) into the retaining (2).
3. Lock the side snap retainers (1).
4. Grasp the ECM retainer and slide the retainer forward until the retainer locks against the 4 clips on the battery cover.
5. Program all of the customer's radio station presets and set the radio clock to the current time.