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Home >> Mazda >> 2002 >> Protege ES, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0118: Engine Coolant Temperature Sensor Circuit, High Input >> Condition

DTC P0118: Engine Coolant Temperature Sensor Circuit, High Input: Condition

DTC is set if input voltage from Engine Coolant Temperature (ECT) sensor is more than 4.94 volts. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during first drive cycle. Possible causes