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Load Test

NOTE: If battery is fully charged, disable ignition system. Crank engine for about 15 seconds to partially discharge battery.
  1. Connect an ammeter as described in NO-LOAD TEST , step 1). See Figure. 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.
ALTERNATOR RATED AMPERE OUTPUT SPECIFICATIONS

Application (1) Amperes
Camry
4-Cylinder 70
V6 80
Celica
With A/C 80
Without A/C 70
Corolla 70
Cressida 80
Land Cruiser 80
MR2 (2) 70, 80 Or 90
Paseo 70
Pickup & 4Runner
4-Cyl. (2) 60 Or 70
V6 60
Previa 70
Tercel
A/T 70
M/T 60
(1) Rated output is measured with 12 volts supplied to alternator.
(2) Manufacturer does not specify which amp alternator applies to which model.
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