Coolant Temperature Sensor (Cts) Test
With key off, disconnect wire connector from sensor. Connect ohmmeter between sensor terminals. See COOLANT TEMPERATURE SENSOR RESISTANCE SPECIFICATIONS. If ohmmeter readings are not within specification, replace CTS.
COOLANT TEMPERATURE SENSOR RESISTANCE SPECS
| Temperature | Resistance |
|---|---|
| 200°F (93°C) | 700-1000 ohms |
| 70°F (21°C) | 7000-13,000 ohms |