Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2004GX 470REPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSGENERATORS & REGULATORSON-VEHICLE TESTINGLOAD TEST
2004 Lexus GX 470
Load Test
2004 Lexus GX 470SECTION Load Test
NOTE:
If battery is fully charged, generator load test results may be less than 30 amps.
- Connect an ammeter as described in NO-LOAD TEST, step 1. Start engine. Turn on high beam headlights and place heater blower switch on HI. Increase engine speed to 2000 RPM.
- Check ammeter reading. See GENERATOR SPECIFICATIONS . If amperage is less than specified, repair or replace generator.
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.