DTC P0118: Engine Coolant Temperature (ECT) Sensor 1 Circuit High Input
WARNING: This page is about a different variant/trim than selected.
P0118 - ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 CIRCUIT HIGH INPUT
| Description: | Indicates the sensor signal is greater than the self-test maximum. The ECT sensor maximum is 4.6 volts or -50 °C (-58 °F). Note: On some vehicles that are not equipped with an ECT sensor, a cylinder head temperature (CHT) sensor can be used and can set this DTC. | ||
| Possible Causes: |
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| Diagnostic Aids: | An ECT V PID reading greater than 4.6 volts with the key on engine off (KOEO) or during any engine operating mode indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Vehicles with only a cylinder head temperature (CHT) sensor | GO to DL: Cylinder Head Temperature (CHT) Sensor STEP DL7. | GO to DL: Cylinder Head Temperature (CHT) Sensor STEP DL7. | GO to DL: Cylinder Head Temperature (CHT) Sensor STEP DL14. |
| Vehicles with only an engine coolant temperature (ECT) sensor | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX7. | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX7. | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX15. |
| Vehicles with both a CHT and an ECT sensor | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX7. | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX7. | GO to DX: Engine Coolant Temperature (ECT) Sensor STEP DX15. |