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Home >> Infiniti >> 2012 >> M37 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (Security Control System) >> DTC/Circuit Diagnosis >> DTC B2555: Stop Lamp >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
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
  • BCM