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.
Control Relay
See CONTROL RELAY LOCATION table for relay location. Unplug relay connector. Check for continuity or voltage as indicated at control relay connector terminals with sun roof switch or limit switch in specified positions. See appropriate CONTROL RELAY TEST table. If test results are as specified, replace control relay. If test results are not as specified, repair or replace appropriate switch or wire. See Fig 1.
| Model | Location |
|---|---|
| Previa | To Left Of Switch |
| Terminal No. & Switch Position | Condition | |||
|---|---|---|---|---|
| 1 (1) | ||||
| Limit Switch No. 1 OFF | No Continuity | |||
| Limit Switch No. 1 ON | Continuity | |||
| 2 (1) | ||||
| Limit Switch No. 2 OFF | No Continuity | |||
| Limit Switch No. 2 ON | Continuity | |||
| 3 (1) | ||||
| Ignition Switch LOCK Or ACC | No Voltage | |||
| Ignition Switch ON | Battery Voltage | |||
| 4 & 10 | Continuity | |||
| 5 (1) | ||||
| Slide Switch OPEN Or NEUTRAL | No Continuity | |||
| Slide Switch CLOSED | Continuity | |||
| 6 (1) | ||||
| Slide Switch CLOSED Or NEUTRAL | No Continuity | |||
| Slide Switch OPEN | Continuity | |||
| 8 (1) | Continuity | |||
|
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NO RELATED
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.