P0118 – Engine Coolant Temperature (ECT) Sensor 1 Circuit High

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:       
 
Open circuit in the harness
 
Sensor signal short to voltage
 
Incorrect harness connection
 
Damaged sensor
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.
Related Topics  P0102 - Mass or Volume Air Flow A Circuit Low

Leave a Reply

Your email address will not be published. Required fields are marked *