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 MANUALSTOYOTA1990TERCEL BASE, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALCOOLING FANENGINE COOLING SYSTEMSELECTRIC COOLING FANENGINE MAIN RELAY TEST (CAMRY, CELICA, COROLLA, TERCEL)
1990 Toyota Tercel Base, 2D Coupe, Standard
Engine Main Relay Test (CAMRY, CELICA, Corolla, Tercel)
1990 Toyota Tercel Base, 2D Coupe, StandardSECTION Engine Main Relay Test (CAMRY, CELICA, Corolla, Tercel)
Engine main relay supplies power to cooling fan relay. Disconnect wiring harness from cooling fan relay. Relay is located in engine compartment relay/fuse box. Check continuity between relay terminals as shown. See Fig 1.
RENDER: 1.0x
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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.