Malfunction Threshold

A malfunction is detected if the following conditions are present after the engine has stopped and the vehicle condition has been turned to the OFF (LOCK) mode for at least 6 hours before restarting the engine:

Temperature difference between each sensor values		Malfunction judgment
ECT1* - ECT2**	IAT* - ECT2	ECT sensor 1	IAT sensor	ECT sensor 2
Higher than 57 °F (32 °C)	Higher than 57 °F (32 °C)	Normal	Normal	Failure
	From -43 °F (-24 °C) to 57 °F (32 °C)	Failure	Normal	Normal
	Lower than -43 °F (-24 °C)	Failure	Failure	Normal
From -43 °F (-24 °C) to 57 °F (32 °C)	Higher than 57 °F (32 °C)	Normal	Failure	Normal
	From -43 °F (-24 °C) to 57 °F (32 °C)	Normal	Normal	Normal
	From -44 °F (-25 °C) to -115 °F (-64 °C)	Normal	Failure	Normal
	From -44 °F (-25 °C) to -115 °F (-64 °C)	Normal	Suspended****	Normal
	Lower than -115 °F (-64 °C)	Normal	Failure	Normal
Lower than -43 °F (-24 °C)	Higher than 57 °F (32 °C)	Failure	Failure	Normal
	From -43 °F (-24 °C) to 57 °F (32 °C)	Failure	Normal	Normal
	Lower than -43 °F (-24 °C)	Normal	Normal	Failure

*: [ECT SENSOR 1]

**: [ECT SENSOR 2]

***: [IAT SENSOR (1)]

****: Malfunction judgment is suspended because the cooled air introduced after engine start lowers the intake air temperature; the ambient temperature condition does not stay equal.

[ ]: HDS Parameter