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Home >> Infiniti >> 2017 >> QX60 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System (ADAS Control Unit) (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC C1A40: System Switch Circuit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC
(On board display)		 Trouble diagnosis name DTC detecting condition Possible causes
C1A40
(40)		 SYSTEM SW CIRC BCI OFF switch remains "ON" (short circuit) for 10 minutes or more
  • BCI OFF switch circuit
  • BCI OFF switch
  • ADAS control unit
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