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DTC Detection Logic

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

If DTC B2557 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC LOGIC .
If DTC B2557 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC LOGIC .

DTC DETECTION LOGIC TABLE

DTC	Self-diagnosis name	DTC detecting condition	Possible causes
B2557	VEHICLE SPEED	BCM detects the following difference between the vehicle speed from "unified meter and A/C amp" and the one from "ABS actuator and electric unit" for 10 seconds continuously One is 10 km/h (6.2 MPH) or more and the other is 4 km/h (2.5 MPH) or less.	Wheel sensor Unified meter and A/C amp. ABS actuator and electric unit (control unit)