ECT Sensor Inspection
Precautions: General safety (00)
NOTE:
Do not measure resistance with terminal of the ECT sensor soaked in coolant. As for the measurement in the soaked state, an accurate measurement cannot be done.
Check resistance between terminal “1” and terminal “2” varies depending on coolant temperature as shown in the following graph.
If faulty condition is found, replace ECT sensor (1). 
| 2. | Ohmmeter | 4. | Heater |
| 3. | Temperature gauge |
| [a]: | Resistance | [b]: | Temperature |