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Home >> Lexus >> 2019 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Suspension >> Electronic Suspension >> Adaptive Variable Suspension System (Diagnostic Codes) >> Adaptive Variable Suspension System >> DTC U0101: Lost Communication With TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0293: Lost Communication with Hybrid Vehicle Control System [10/2015 - ] >> Description
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DTC U0101: Lost Communication With TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0293: Lost Communication with Hybrid Vehicle Control System [10/2015 - ]: Description

The absorber control ECU (rear acceleration sensor) receives signals from the skid control ECU assembly, steering angle sensor, yaw rate sensor assembly (acceleration sensor) and hybrid vehicle control ECM assembly via CAN communication.

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
U0101 Lost Communication With TCM While driving at 30 km/h (19 mph), CAN communication from the ECM stops for 6 seconds or more.
  • ECM
  • CAN communication system
  • Absorber control ECU (rear acceleration sensor)
Does not come on
U0122 Lost Communication with Vehicle Dynamics Control Module CAN communication from the skid control ECU assembly stops for 3 seconds or more.
  • Skid control ECU assembly
  • CAN communication system
  • Absorber control ECU (rear acceleration sensor)
Does not come on
U0124 Lost Communication with Lateral Acceleration Sensor Module CAN communication from the yaw rate sensor assembly (acceleration sensor) stops for 3 seconds or more.
  • Yaw rate sensor assembly (acceleration sensor)
  • CAN communication system
  • Absorber control ECU (rear acceleration sensor)
Does not come on
U0126 Lost Communication with Steering Angle Sensor Module CAN communication from the steering angle sensor stops for 3 seconds or more.
  • Steering angle sensor
  • CAN communication system
  • Absorber control ECU (rear acceleration sensor)
Does not come on
U0293 Lost Communication with Hybrid Vehicle Control System While driving at 30 km/h (19mph), data is not receivedfrom the hybrid vehicle control ECU assembly via CAN communication for 3 seconds or more.
  • Hybrid vehicle control ECU assembly
  • CAN communication system
  • Absorber control ECU (rear acceleration sensor)
Does not come on