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
P0037	HO2S2 HTR (B1) [Heated oxygen sensor 2 heater (bank 1) control circuit low]	Diagnosis condition	--
		Signal (terminal)	Heated oxygen sensor 2 heater signal
		Threshold	An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater ECM detects the heated oxygen sensor 2 heater circuit is short to ground
		Diagnosis delay time	--
P0038	HO2S2 HTR (B1) [Heated oxygen sensor 2 heater (bank 1) control circuit high]	Diagnosis condition	--
		Signal (terminal)	Heated oxygen sensor 2 heater signal
		Threshold	An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater
		Diagnosis delay time	--
P0057	HO2S2 HTR (B2) [Heated oxygen sensor 2 heater (bank 2) control circuit low]	Diagnosis condition	--
		Signal (terminal)	Heated oxygen sensor 2 heater signal
		Threshold	An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater
		Diagnosis delay time	--
P0058	HO2S2 HTR (B2) [Heated oxygen sensor 2 heater (bank 2) control circuit high]	Diagnosis condition	--
		Signal (terminal)	Heated oxygen sensor 2 heater signal
		Threshold	An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater
		Diagnosis delay time	--