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.

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high.

The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V.

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0132	A/F SENSOR1 (B1) (O2 sensor circuit high voltage bank 1 sensor 1)	Diagnosis condition	-
		Signal (terminal)	The A/F signal computed by ECM
		Threshold	The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V
		Diagnosis delay time	-
P0152	A/F SENSOR1 (B2) (O2 sensor circuit high voltage bank 2 sensor 1)	Diagnosis condition	-
		Signal (terminal)	The A/F signal computed by ECM
		Threshold	The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V
		Diagnosis delay time	-