Engine Coolant Temperature Sending Unit
Connect wiring harness as shown in Fig 1. Adjust ammeter pointer to zero using slide rheostat, then read rheostat indicator. Compare resistance value to specifications. See ENGINE COOLANT TEMPERATURE SENDING UNIT RESISTANCE table.
ENGINE COOLANT TEMPERATURE SENDING UNIT RESISTANCE
| Engine Coolant Temp. °F (°C) | Ohms |
|---|---|
| 122 (50) | 160-240 |
| 248 (120) | 17.1-21.2 |