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.
ATF THERMOSENSOR
Remove the valve body cover. Remove thermosensor connector. Using appropriate sensor socket, remove thermosensor. See Fig 1 and Fig 2 . Using an ohmmeter, connect the test leads to the appropriate terminals. Refer to the ATF THERMOSENSOR TERMINAL IDENTIFICATION table. Also, see Fig 3 and Fig 4 . Measure resistance while warming up the ATF. Make sure resistance drops as indicated. Refer to the appropriate ATF THERMOSENSOR RESISTANCE chart. If ATF thermosensor resistance is not as described, replace ATF thermosensor.
| Model | Terminals | ||
|---|---|---|---|
| Protege & 323 | L & I | ||
|
|||
| Sensor Temperature | Resistance (k/ohms) |
|---|---|
| -4°F (-20°C) | 124.8-142.0 |
| 32°F (0°C) | 52.0-57.4 |
| 68°F (20°C) | 23.4-25.0 |
| 104°F (40°C) | 11.1-12.1 |
| 140°F (60°C) | 5.6-6.3 |
| 176°F (80°C) | 3.0-3.4 |
| 212°F (100°C) | 1.7-2.0 |
| 248°F (120°C) | 1.1-1.2 |
| 266°F (130°C) | .86-.92 |
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.