DTC P0118: - Engine Coolant Temperature (ECT) Sensor 1 Circuit High
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0118: - ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 CIRCUIT HIGH
| 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). | ||
| Possible Causes: |
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| Diagnostic Aids: | An ECT PID reading greater than 4.6 volts with the ignition ON engine OFF or during any engine operating mode indicates a concern is present. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test DX . | ||