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 MANUALSTOYOTA19904RUNNER 2D UTILITY, 3.0 V, AUTOMATICREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSALTERNATOR & REGULATORCOMPONENT TESTINGCHARGE LIGHT RELAY TEST (LAND CRUISER)
1990 Toyota 4Runner 2D Utility, 3.0 V, Automatic
Charge Light Relay Test (Land Cruiser)
1990 Toyota 4Runner 2D Utility, 3.0 V, AutomaticSECTION Charge Light Relay Test (Land Cruiser)
- Charge light relay is located above right kick panel. Using an ohmmeter, connect ohmmeter positive lead to charge light relay terminal No. 4 and negative lead to terminal No. 3. See STEP 1 in Fig 1.
- Ohmmeter should indicate continuity. Reverse ohmmeter leads. Ohmmeter should now indicate no continuity.
- Connect ohmmeter between terminals No. 1 and 2. Ohmmeter should indicate no continuity. If charge light relay does not test as indicated, replace relay.
- Check charge light relay operation. Connect positive side of battery to terminal No. 3. Connect negative side of battery to terminal No. 4. See STEP 2 in Fig 1. Check for continuity between charge light relay terminals No. 1 and 2. If relay does not test as indicated, replace relay.
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.