Sending Unit
Measure resistance between terminal and sending unit body. When sending unit temperature is 122°F (50°C), resistance should 160-240 ohms. Heat switch to 248°F (120°C) in liquid. Resistance should be 17.1-21.2 ohms. If resistance is not as specified, replace sending unit.
ENGINE COOLANT TEMPERATURE GAUGE RESISTANCE
| Terminals | Approximate Resistance (Ohms) |
|---|---|
| A & B | 54 |
| A & C | 176 |
| B & C | 230 |