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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System >> DTC/Circuit Diagnosis >> DTC B2555: Stop Lamp >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE: If DTC B2555 is displayed with DTC C1A68 (for BRAKE), first perform the trouble diagnosis for DTC C1A68. Refer to "DTC LOGIC ".
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.)
  • Harness or connectors (Stop lamp OFF relay 1, 2 circuit is open or shorted.) (Models with ICC)
  • Stop lamp switch
  • Stop lamp OFF relay 1 (Models with ICC)
  • Stop lamp OFF relay 2 (Models with ICC)
  • Fuse
  • BCM