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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> Steering Column >> Variable Gear Ratio Steering System >> DTC U0122/56 Lost Communication with Vehicle Dynamics Control Module; DTC U0123/56 Lost Communication with Yaw Rate (Deceleration) Sensor Module; DTC U0126/56 Lost Communication with Steering Angle Sensor Module; DTC U0131/56 Lost Communication with Power Steering Control Module >> Description
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DTC U0122/56 Lost Communication with Vehicle Dynamics Control Module; DTC U0123/56 Lost Communication with Yaw Rate (Deceleration) Sensor Module; DTC U0126/56 Lost Communication with Steering Angle Sensor Module; DTC U0131/56 Lost Communication with Power Steering Control Module: Description

The steering control ECU receives signals from the skid control ECU, yaw rate (deceleration) sensor, steering angle sensor and power steering ECU via CAN communication When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.

RESULT CHART

DTC Code Detection Condition Trouble Area
U0122/56 The steering control ECU detects an error in reception (from skid control ECU) via CAN communication
  • CAN communication system
  • Skid control ECU
U0123/56 The steering control ECU detects an error in reception (from yaw rate (deceleration) sensor) via CAN communication
  • CAN communication system
  • Yaw rate (deceleration) sensor
U0126/56 The steering control ECU detects an error in reception (from steering angle sensor) via CAN communication
  • CAN communication system
  • Steering angle sensor
U0131/56 The steering control ECU detects an error in reception (from power steering ECU) via CAN communication
  • CAN communication system
  • Power steering ECU
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