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Alternator Output Test

  1. With engine off, disconnect wire from alternator terminal "B". See Figure. Connect ammeter positive lead to terminal "B", and negative lead to wire just removed.
    NOTE: On Civic and Prelude models, by-pass voltage regulator by disconnecting its connector. Connect jumper wire from battery positive terminal to Red/White wire at connector.
  2. Start engine. Turn on bright beam of headlights, rear window defroster, and turn heater fan switch to highest setting.
  3. Check alternator output. Ammeter should show approximately 60 amps for Accord, 45 for Civic, and 50 for Prelude. Check alternator if not to specifications.
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