DTC Detection Logic

WARNING: This page is about a different car, the 2019 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
B2557	VEHICLE SPEED (Vehicle speed)	Diagnosis condition	Vehicle speed 10 km/h or more for 10 seconds or more
		Signal (terminal)	CAN communication signal
		Threshold	BCM detects one of the following conditions. 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 or more