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.
Cold Mixture Relay
Ensure continuity is present between terminals No. 1 and 2. No continuity should be present between terminals No. 3 and 4. Apply battery voltage to terminals No. 1 and 2. Continuity should be present between terminals No. 3 and 4. See Fig 1. See COLD MIXTURE RELAY LOCATION table for location of component.
| Application | Relay Location |
|---|---|
| Corolla RWD & FWD | Left Fender Apron |
| Pickup, 4Runner | Right Fender Apron |
| Tercel Sedan | Near Wiper Motor |
| Tercel Wagon | Right Fender Apron |
Use the Manual With the Right Hardware
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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.