DESCRIPTION
INSPECTION PROCEDURE
CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)
CHECK DTC OUTPUT (BRAKE CONTROL SYSTEM)
CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM)
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.
| DTC No. | DTC Detection Condition | Trouble Area |
| B2057 | Malfunction in yaw rate sensor | Yaw rate sensor
Seat belt control ECU
|
INSPECTION PROCEDURE
- When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed .
| 1.CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM) |
Recheck for DTC.
- OK:
- DTC U0123 is not output.
| | GO TO CAN COMMUNICATION SYSTEM |
|
|
| 2.CHECK DTC OUTPUT (BRAKE CONTROL SYSTEM) |
Recheck for DTC.
- OK:
- DTC C1234 is not output.
| | GO TO BRAKE CONTROL SYSTEM |
|
|
| 3.CHECK DTC OUTPUT (PRE-CRASH SAFETY SYSTEM) |
Recheck for DTC.
- OK:
- DTC B2057 is not output.
| | REPLACE SEAT BELT CONTROL ECU |
|
|
| OK | |
| |
| USE SIMULATION METHOD TO CHECK |
|
LEXUS IS250, IS220d / GSE20 ALE20