2004 ford ranger
on 2004 Ford Ranger

2004 ford ranger p0118

Asked by for the 2004 Ford Ranger
2 answers
Engine coolant sensor circuit high input, possible corrosion on connector or bad connection.
Damaged sensor
Most likely a bad ECT sensor, but it requires diagnosis. The code is only telling you that at some point the PCM got a faulty reading on the ECT circuit. You need to find out what part of the circuit caused that reading, it could be the sensor, the connector at the sensor, the wiring between the sensor and the PCM, or the PCM itself.