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
B1F0B	ANC MIC1 CIRC OPEN (Active noise cancellation microphone1 circuit open)	OPEN	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 1 + (DR) (terminal 69) MIC 1 - (DR) (terminal 49)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F0C	ANC MIC1 CIRC SHORT (Active noise cancellation microphone1 circuit short)	SHORT	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 1 + (DR) (terminal 69) MIC 1 - (DR) (terminal 49)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F0D	ANC MIC1 CIRC SHORT-BAT (Active noise cancellation microphone1 circuit short-battery)	VB-SHOR	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 1 + (DR) (terminal 69) MIC 1 - (DR) (terminal 49)
			Threshold	-
			Diagnosis delay time	30 seconds or more
B1F0E	ANC MIC1 CIRC SHORT-GND (Active noise cancellation microphone1 circuit short-ground)	GND-SHORT	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	MIC 1 + (DR) (terminal 69) MIC 1 - (DR) (terminal 49)
			Threshold	-
			Diagnosis delay time	30 seconds or more