DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0117

ECT SEN/CIRC

(Engine coolant temperature sensor 1 circuit low)

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

• Harness or connectors

  (Engine coolant temperature sensor circuit is open or shorted.)

• Engine coolant temperature sensor

P0118

ECT SEN/CIRC

(Engine coolant temperature sensor 1 circuit high)

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