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.
Wiper Control Relay
Ensure wiper system is operating correctly except for the intermittent wipers. Check that battery voltage is available at wiper relay. If voltage is available and intermittent wipers do not operate properly, replace relay.
| Model | Connector | Location |
|---|---|---|
| Celica | 4-pin | Right kick panel |
| Corolla | 4-pin | Right kick panel |
| Corona | 4-pin | Left kick panel |
| Cressida | 6-pin | Right kick panel |
| Land Cruiser | 5-pin | Under instru. cluster |
| Pickup | 4-pin | Right kick panel |
| Starlet | 4-pin | Left corner of dash |
| Supra | 9-pin | Right kick panel |
| Tercel | 4-pin | Left kick panel |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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