Dtc U0123 Communication Error Of Yaw Rate Sensor

Cruise Control System. Lexus Is250, Is220D. Gse20 Ale20
Cruise Control. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

INSPECTION PROCEDURE

DTC U0123 Communication Error of Yaw Rate Sensor


DESCRIPTION

This circuit detects the yaw rate of the vehicle and transmits its signal to the skid control ECU and distance control ECU.

DTC No.
DTC Detection Condition
Trouble Area
U0123
While the dynamic radar cruise control is either preparing for operation or operating, the ECM continuously receives a yaw rate sensor malfunction signal for a certain amount of time
  1. Communication circuit
  2. Yaw rate sensor
  3. Distance control ECU (Cruise control ECU)
  4. ECM

INSPECTION PROCEDURE

HINT:
This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.


1.CHECK CAN COMMUNICATION SYSTEM
    Refer to HOW TO PROCEED WITH TROUBLESHOOTING.for LHD: (Click here)for RHD: (Click here)