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HOMESERVICE MANUALSTOYOTA1992PICKUP BASE, W55REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSALTERNATOR & REGULATORON-VEHICLE TESTINGLOAD TEST
1992 Toyota Pickup Base, W55

Load Test

1992 Toyota Pickup Base, W55SECTION 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.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.