DTC Detection Logic

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC Detection Condition
B2557	VEHICLE SPEED (Vehicle speed)	Diagnosis condition	When the ignition switch is ON.
		Signal (terminal)	-
		Threshold	BCM detects one of the following conditions for 10 seconds continuously: Vehicle speed signal from "combination meter" is 10 km/h (6.2 MPH) or more and vehicle speed signal from "ABS actuator and electric unit (control unit) " is 4 km/h (2.5 MPH) or less Vehicle speed signal from "combination meter" is 4 km/h (2.5 MPH) or less and vehicle speed signal from "ABS actuator and electric unit (control unit) " is 10 km/h (6.2 MPH) or more
		Diagnosis delay time	10 seconds