B2057

PRE-COLLISION: PRE-COLLISION SYSTEM: B2057: Yaw Rate Sensor

DTC B2057 - Yaw Rate Sensor

DESCRIPTION

This DTC is stored when the vehicle is driven at a vehicle speed of 5 km/h (3 mph) or more and a malfunction occurs in the yaw rate sensor.
This circuit consists of the yaw rate sensor and seat belt control ECU.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)
(a) Using the Techstream, enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Code.
(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(c) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC C1234 is not output.
NG -- GO TO VEHICLE STABILITY CONTROL SYSTEM
OK -- Continue to next step.
2. CHECK DTC (PRE-COLLISION SYSTEM)
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Code.
(b) Clear the DTCs Pre-Collision System.
(c) Check for DTCs Pre-Collision System.
OK:
DTC B2057 is not output.
NG -- REPLACE SEAT BELT CONTROL ECU
OK -- USE SIMULATION METHOD TO CHECK