DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0116	ECT SEN/CIRC [Engine coolant temperature (ECT) sensor 1 circuit range/performance]	Diagnosis condition	Engine is started with its cold state
		Signal (terminal)	Engine coolant temperature sensor 1 signal
		Threshold	The comparison result of signals transmitted to ECM from each temperature sensor (IAT sensor, ECT sensor 1, FTT sensor, and EOT sensor) shows that the voltage signal of the ECT sensor 1 is higher/lower than that of other temperature sensors Engine coolant temperature signal from engine coolant temperature sensor does not fluctuate, even when some time has passed after starting the engine with pre-warming up condition.
		Diagnosis delay time	--