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Home >> Infiniti >> 2017 >> Q50 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 583 (Security Control System (DTCS)) >> BCM (BCM) >> DTC B2555: Stop Lamp >> DTC Description >> Gasoline engine models >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2020 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B2555

STOP LAMP

(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.