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Home >> Toyota >> 1991 >> Previa LE, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternator & Regulator >> On-Vehicle Testing >> Load Test

Load Test

  1. Connect an ammeter as described in NO-LOAD TEST , step 1). Start engine. Turn on high beam headlights and place heater control on HI Increase engine speed to 2000 RPM.
  2. Check ammeter reading. Ammeter should read more than 30 amps. If amperage is less than specified, repair or replace alternator.
NOTE: If battery is fully charged, disable ignition system and crank engine for about 15 seconds to partially discharge battery.
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