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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Multi Av (Av Control Unit) >> B1A12 Front Inst Right Squawker >> DTC Description

DTC Description

DTC DETECTION LOGIC 

DTC No. CONSULT screen terms(Trouble diagnosis content) DTC detection condition
B1A12-13 Front inst right squawker(Instrument panel speaker RH) [OPEN] Diagnosis condition When ignition switch is ON.
Signal (terminal)
  • INST RIGHT SP+ (terminal 14)
  • INST RIGHT SP- (terminal 9)
Threshold Open
Diagnosis delay time 30 seconds or more
B1A12-1A [SHORT] Diagnosis condition When ignition switch is ON.
Signal (terminal)
  • INST RIGHT SP+ (terminal 14)
  • INST RIGHT SP- (terminal 9)
Threshold Short circuit
Diagnosis delay time 30 seconds or more
B1A12-11 [GND-SHORT] Diagnosis condition When ignition switch is ON.
Signal (terminal)
  • INST RIGHT SP+ (terminal 14)
  • INST RIGHT SP- (terminal 9)
Threshold Short to ground circuit
Diagnosis delay time 30 seconds or more
B1A12-12 [VB-SHOR] Diagnosis condition When ignition switch is ON.
Signal (terminal)
  • INST RIGHT SP+ (terminal 14)
  • INST RIGHT SP- (terminal 9)
Threshold Short to power supply circuit
Diagnosis delay time 30 seconds or more

POSSIBLE CAUSE 

FAIL-SAFE 

Instrument panel speaker RH inoperative