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B2557 VEHICLE SPEED SEC-59 < DTC/CIRCUIT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM] C D E F G H I J L M A B SEC N O P B2557 VEHICLE SPEED Description INFOID:0000000005515524 BCM receives the 2 vehicle speed signals via CAN communication. 1 signal is transmitted by the combination DTC Logic INFOID:0000000005515525 DTC DETECTION LOGIC NOTE: • If DTC B2557 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE 1. Drive the vehicle at the vehicle speed of 10 km/h (6.2 MPH) or more for at least 10 seconds. 2. Check “Self diagnostic result” with CONSULT-III. Is DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005515526 1. CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)” Check “Self diagnostic result” with CONSULT-III. Refer to Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace the malfunctioning parts. 2. CHECK DTC WITH COMBINATION METER Check “Self diagnostic result” with CONSULT-III. Refer to . Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace the malfunctioning parts. 3. CHECK INTERMITTENT INCIDENT GI-39, "Intermittent Incident" . >> INSPECTION END DTC Self-diagnosis name DTC detecting condition Possible causes B2557 VEHICLE SPEED BCM detects the following difference between the vehicle km/h (2.5 MPH) or less. • Wheel sensor (control unit) |