DTC P0117: Engine Coolant Temperature (ECT) Sensor Circuit, Low Input: Condition
DTC is set if input voltage from ECT sensor is less than .2 volt. This is a continuous monitor. MIL is illuminated when Powertrain Control Module (PCM) detects malfunction during first drive cycle. Possible causes are:
- ECT sensor malfunction.
- Short circuit between ECT sensor and PCM.
- PCM malfunction.