No Load Test
- Connect battery/alternator tester according to manufacturer's instructions. Check amperage and voltage with engine running at 2000 RPM. On all models, alternator output should be less than 10 amps.
- Voltage should be 13.8-14.8 volts on Camry (Diesel), Corolla, Pickup (Diesel), and Tercel (without IC regulator). Voltage reading on all other models should be 13.5-15.1 volts.
- If voltage reading is above specified range, replace IC regulator. If voltage reading is less than specified, ground "F" (full field) terminal. See Fig 1.
- If voltage now climbs above specified range, replace IC regulator. If reading remains below specified range, repair or replace alternator.
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