B2057

PRE-COLLISION SYSTEM: B2057: Yaw Rate Sensor

DTC B2057 - Yaw Rate Sensor

DESCRIPTION

This DTC is output when a malfunction in the yaw rate sensor is detected. This circuit consists of the yaw rate sensor and seat belt control ECU. Signals are sent from the yaw rate sensor using CAN communication.






INSPECTION PROCEDURE
NOTE: When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed. Pre-Collision System

PROCEDURE

1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
(a) Delete the DTC Pre-Collision System.
(b) Recheck for DTC.
OK:
DTC U0123 is not output.
NG -- GO TO CAN COMMUNICATION SYSTEM
OK -- Continue to next step.
2. CHECK DTC OUTPUT (BRAKE CONTROL SYSTEM)
(a) Delete the DTC Pre-Collision System.
(b) Recheck for DTC.
OK:
DTC C1234 is not output.
NG -- GO TO BRAKE CONTROL SYSTEM
OK -- Continue to next step.
3. CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
(a) Delete the DTC Pre-Collision System.
(b) Recheck for DTC.
OK:
DTC B2057 is not output.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- USE SIMULATION METHOD TO CHECK