LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Audio, Visual & Navigation System (DTC/Circuit Diagnosis) >> Circuit Diagnosis >> ANC (Active Noise Control Unit) >> B1F0F ANC Mic2/Control Unit >> DTC Description >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B1F0F-16

ANC MIC2/CONTROL UNIT

(Active noise control microphone RH (front) or active noise control unit)

[--]

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

  • FR RH ANC MIC + IN (terminal 9)
  • FR RH ANC MIC - IN (terminal 25)

Threshold

Active noise control microphone RH (front) (active noise cancellation) or active noise control unit malfunction

Diagnosis delay time

30 second or more