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Home >> Infiniti >> 2008 >> EX35 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Auto Cruise Control System >> Intelligent Cruise Control >> Component Diagnosis >> DTC C1A05: Brake SW/Stop Lamp SW >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC DETECTING CONDITION TABLE

DTC No. (On board display) Trouble diagnosis name DTC detecting condition Possible cause
C1A05 (5) BRAKE SW/STOP L SW If the ICC sensor integrated unit receives signals indicating that the stop lamp switch [from ABS actuator and electric unit (control unit)] is ON and the ICC brake switch (from ECM) is ON.
  • Stop lamp switch circuit
  • ICC brake switch circuit
  • Stop lamp switch
  • ICC brake switch
  • Incorrect stop lamp switch installation
  • Incorrect ICC brake switch installation
  • ECM
  • ABS actuator and electric unit (control unit)
NOTE: If DTC "C1A05" is detected along with DTC "U1000", "U0401", "U0415" or "U0121", first diagnose the DTC "U1000", "U0401", "U0415" or "U0121".