DTC Detection Logic

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0117

ECT SEN/CIRC

(Engine coolant temperature sensor 1 circuit low input)

An excessively low voltage from the sensor is sent to ECM.

• Harness or connectors

  (The engine coolant temperature sensor 1 circuit is open or shorted.)

• Engine coolant temperature sensor 1

P0118

ECT SEN/CIRC

(Engine coolant temperature sensor 1 circuit high input)

An excessively high voltage from the sensor is sent to ECM.