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.

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

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P1078	EXH TIM SEN/CIRC-B1 [Exhaust valve timing (EVT) control position sensor (bank 1) circuit]	Diagnosis condition	Start engine and let it idle
		Signal (terminal)	Voltage signal transmitted from EVT control position sensor to ECM
		Threshold	An excessively high or low voltage from the sensor is sent to ECM
		Diagnosis delay time	-
P1084	EXH TIM SEN/CIRC-B2 [Exhaust valve timing (EVT) control position sensor (bank 2) circuit]	Diagnosis condition	Start engine and let it idle
		Signal (terminal)	Voltage signal transmitted from EVT control position sensor to ECM
		Threshold	An excessively high or low voltage from the sensor is sent to ECM
		Diagnosis delay time	-