B2557

B2557 VEHICLE SPEED

Description
BCM receives the 2 vehicle speed signals via CAN communication. 1 signal is transmitted by the "unified meter and A/C amp." Another signal is transmitted by "ABS actuator and electric unit (control unit)". BCM compares both signals to detect the vehicle speed.

DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE

Step 1:

Diagnosis Procedure

Step 1-3: