LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams, Basic Inspection And DTCS) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC C1A05: Brake SW/Stop Lamp SW >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC
(On board display)
Trouble diagnosis name DTC detecting condition
C1A05
(5)
BRAKE SW/STOP L SW
(Brake switch/Stop lamp switch)
  • A mismatch between a stop lamp switch signal and a brake pedal position switch signal received from ECM and a stop lamp signal received from the ABS actuator and electric unit (control unit) continues for 10 seconds or more with vehicle speeds at approximately 40 km/h or more (VR30DDTT)
  • A mismatch between a stop lamp switch signal and a brake pedal position switch signal received from EMCM continues for 10 seconds or more with vehicle speeds at approximately 40 km/h (25 MPH) or more (2.0 TURBO GASOLINE ENGINE)