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Home >> Infiniti >> 2014 >> Q60 Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Intelligent Cruise Control System (ICC) (Convertible) >> DTC/Circuit Diagnosis >> DTC C1A13: Stop Lamp Relay >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC (On board display) Trouble diagnosis name DTC detecting condition Possible causes
C1A13 (13) STOP LAMP RLY FIX
  • If the stop lamp is not activated even though the ICC sensor integrated unit is transmitting a ICC brake hold relay drive signal
  • If the stop lamp is activated even though the ICC sensor integrated unit is not transmitting a ICC brake hold relay drive signal
  • Stop lamp switch circuit
  • ICC brake switch circuit
  • ICC brake hold relay circuit
  • Stop lamp switch
  • ICC brake switch
  • ICC brake hold relay
  • Incorrect stop lamp switch installation
  • Incorrect ICC brake switch installation
  • ECM
  • ABS actuator and electric unit (control unit)
NOTE: If DTC "C1A13" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to "DTC LOGIC ".
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