Coolant Temperature Sensor
- Disconnect electrical connector from coolant temperature sensor. Using a DVOM, check resistance between ECU connector terminal "C10" to sensor connector and ECU connector terminal "D3" to sensor connector. See Figure
.
- If resistance is greater than one ohm, repair wiring harness. Measure resistance of sensor between sensor terminals. Refer to COOLANT TEMPERATURE SENSOR RESISTANCE
table for specifications on coolant temperature sensor resistance.
COOLANT TEMPERATURE SENSOR RESISTANCE
| °F (°C) |
Ohms |
| 212 (100) |
185 |
| 160 (70) |
450 |
| 100 (38) |
1600 |
| 70 (20) |
3400 |
| 40 (4) |
7500 |
| 20 (-7) |
13,500 |
| 0 (-18) |
25,500 |
| -40 (-40) |
100,700 |