Honda Civic Service Manual: Battery System

Electrical

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Battery Removal and Installation

Removal 1. Battery Terminal - Disconnection 1. Make sure the ignition switch is in LOCK (0). ...

See also:

Honda Civic Service Manual. ODS Unit Operation Check (KA KC KL models)
Procedure 1. After Replacing Front Passenger's Seat Component(s) After Replacing Front Passenger's Seat Component(s) NOTE: Check the ODS unit operation after any of these actions: ...