Alternator Output Test
- With engine off, disconnect wire from alternator terminal "B". See Fig 1. Connect ammeter positive lead to terminal "B", and negative lead to wire just removed.
- Start engine. Turn on bright beam of headlights, rear window defroster, and turn heater fan switch to highest setting. Run engine at 2000 RPM.
- Check alternator output. Ammeter should show approximately 60 amps. Check alternator if not to specifications.