Dtc U0126 Lost Communication With Steering Angle Sensor Module

Lexus IS250 IS220d GSE20 ALE20 - CRUISE CONTROL

DESCRIPTION

INSPECTION PROCEDURE

DTC U0126 Lost Communication with Steering Angle Sensor Module

DESCRIPTION

This circuit detects the angle and direction of the steering wheel and automatically transmits a signal to the skid control ECU and distance control ECU.

DTC No.DTC Detection ConditionTrouble Area
U0126While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a steering sensor communication error signal for a certain amount of time, the distance control ECU sends a signal to the ECM to record this trouble code
Communication circuit
Steering angle sensor
Distance control ECU (Cruise control ECU)
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:

for RHD: