Cold Start THERMOSWITCH
WARNING: This page is about a different car, the 1994 Mazda 929. However, it is still accessible from the selected car via links, so may be relevant.
Remove cold start thermoswitch. Place thermoswitch and thermometer in container of coolant. Connect ohmmeter to thermoswitch terminals. Slowly heat coolant. Note resistance at specified temperatures. See COLD START THERMOSWITCH RESISTANCE table. Replace thermoswitch as necessary.
COLD START THERMOSWITCH RESISTANCE
| Temperature | Ohms |
|---|---|
| 68°F (20°C) | 25-35 |
| 176°F (80°C) | 64-76 |