PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2057

DTC Code DTC Name
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.

DTC Code DTC Detection Condition Trouble Area
B2057 The vehicle speed is 5 km/h (3 mph) or more and a malfunction is detected in the yaw rate sensor.

  • Yaw rate sensor

  • Seat belt control ECU

  • Distance control ECU

WIRING DIAGRAM

A01ES7YE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Using the intelligent tester, enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Code.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      DTC C1234 is not output.

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    OK

  2. CHECK DTC (PRE-CRASH SAFETY SYSTEM)


    1. Using the intelligent tester, enter the following menus: Body / Pre-Crash / Trouble Code.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      Result
      Result Proceed to

      OK

      (DTC B2057 is not output)

      		 A

      NG

      (for LHD)

      		 B

      NG

      (for RHD)

      		 C

    B

    REPLACE SEAT BELT CONTROL ECU Click here

    C

    REPLACE SEAT BELT CONTROL ECU Click here

    A

    USE SIMULATION METHOD TO CHECK Click here