DTC P0119: Engine Coolant Temperature (ECT) Sensor 1 Circuit Intermittent/Erratic
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Mariner, and 2006 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0119 - ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC
| Description: | Indicates the ECT circuit became intermittently open or shorted while the engine was running. On vehicles that are not equipped with an ECT sensor, the cylinder head temperature (CHT) sensor can be used and can set this DTC. | ||
| Possible Causes: |
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| Diagnostic Aids: | Monitor the ECT or the CHT on a diagnostic tool, look for sudden changes in the reading when the harness is wiggled or the sensor is tapped. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Vehicles with only a CHT sensor | - | - | GO to Pinpoint Test DL . |
| All others | - | - | GO to Pinpoint Test DX . |