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Battery Terminal Disconnection and Reconnection: Disconnection

NOTE: Some systems store data in memory (including seat position, mirror position, etc) that is lost when the battery is disconnected. Do the following procedures before disconnecting the battery.
  1. Make sure you have the anti-theft code for the audio system or the audio-navigation unit.
  2. Make sure the ignition switch is in LOCK (0), or the vehicle ignition is in the OFF mode.
  3. Remove the bulkhead cover (see ENGINE COMPARTMENT COVER REPLACEMENT ).
  4. Disconnect and isolate the negative cable from the battery.
    NOTE: Always disconnect the negative cable from the battery first.
  5. Disconnect the positive cable from the battery.
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