Procedures

Battery Terminal Disconnection and Reconnection

Disconnection

NOTE: Some systems store data in memory that is lost when the battery is disconnected. Do the following steps before disconnecting the battery.

1. Make sure you have the anti-theft code for the audio system, then write down the audio presets.

2. Make sure the ignition switch is in LOCK (0).

3. Disconnect and isolate the negative cable from the battery.
NOTE: Always disconnect the negative cable from the battery first.

4. Disconnect the positive cable from the battery.

Reconnection

NOTE: Some systems store data in memory that is lost when the battery is disconnected. Do the following steps to restore the systems back to normal operation.

1. Clean the battery terminals.

2. Test the battery. Testing and Inspection

3. Reconnect the positive cable (A) to the battery (B) first, then reconnect the negative cable (C) to the battery.
NOTE: Always connect the positive cable to the battery first.

4. Apply multipurpose grease to the terminals to prevent corrosion.

5. Enter the anti-theft code for the audio system, then enter the audio presets and set the clock.

6. '00-05 models: Do the ECM idle learn procedure.