DTC Detection Logic

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will rise.

When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is indicated.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P1217	ENG OVER TEMP [Engine over temperature (Overheat)]	1	Diagnosis condition	-
			Signal (terminal)	-
			Threshold	Cooling fan does not operate properly (Overheat)
			Diagnosis delay time	-
		2	Diagnosis condition	-
			Signal (terminal)	-
			Threshold	Cooling fan system does not operate properly (Overheat)
			Diagnosis delay time	-
		3	Diagnosis condition	-
			Signal (terminal)	-
			Threshold	Engine coolant was not added to the system using the proper filling method
			Diagnosis delay time	-
		4	Diagnosis condition	-
			Signal (terminal)	-
			Threshold	Engine coolant is not within the specified range
			Diagnosis delay time	-

CAUTION: When a malfunction is indicated, be sure to replace the coolant. Refer to Changing Engine Coolant . Also, replace the engine oil. Refer to Changing Engine Oil .

Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to use coolant with the proper mixture ratio. Refer to Anti-Freeze Coolant Mixture Ratio (For USA AND CANADA)
After refilling coolant, run engine to ensure that no water-flow noise is emitted.