FixVault

DTC Detection Logic

DTC DETECTION LOGIC TABLE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
B2555 STOP LAMP BCM makes a comparison between the upper voltage and lower voltage of stop lamp switch. It judges from their values to detect the malfunctioning circuit.
  • Harness or connectors

    (stop lamp switch circuit is open or shorted)

  • Stop lamp switch
  • Fuse