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.

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
B1F15	ANC MIC3 CIRC OPEN (Active noise cancellation microphone3 circuit open)	OPEN	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 3 + (RR) (terminal 68) MIC 3 - (RR) (terminal 48)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F16	ANC MIC3 CIRC SHORT (Active noise cancellation microphone3 circuit short)	SHORT	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 3 + (RR) (terminal 68) MIC 3 - (RR) (terminal 48)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F17	ANC MIC3 CIRC SHORT-BAT (Active noise cancellation microphone3 circuit short-battery)	VB-SHOR	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 3 + (RR) (terminal 68) MIC 3 - (RR) (terminal 48)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F18	ANC MIC3 CIRC SHORT-GND (Active noise cancellation microphone3 circuit short-ground)	GND-SHORT	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 3 + (RR) (terminal 68) MIC 3 - (RR) (terminal 48)
			Threshold	-
			Diagnosis delay time	30 seconds or more