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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Suspension >> Suspension Control Systems >> Adaptive Variable Suspension System - Diagnostic Codes >> Adaptive Variable Suspension System >> DTC U0100: Lost Communication with ECM / PCM "A"; 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 U1103: Lost Communication with Stop and Start Control Module; DTC U114C: Lost Communication with Suspension Control Module 1 [12/2021 - ] >> Description
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DTC U0100: Lost Communication with ECM / PCM "A"; 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 U1103: Lost Communication with Stop and Start Control Module; DTC U114C: Lost Communication with Suspension Control Module 1 [12/2021 - ]: Description

The absorber control ECU receives signals from the ECM, transmission control ECU assembly, No. 2 skid control ECU (brake actuator assembly), steering sensor, yaw rate and acceleration sensor (airbag sensor with ECU assembly), engine stop and start ECU and suspension control ECU 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 Memory DTC Output from Priority
U0100 Lost Communication with ECM / PCM "A" While driving at 30 km/h (19 mph) or more, data is not received via CAN communication for 3 seconds or more.
  • ECM
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U0101 Lost Communication with TCM While driving at 30 km/h (19 mph) or more, data is not received via CAN communication for 6 seconds or more.
  • Transmission control ECU
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U0122 Lost Communication With Vehicle Dynamics Control Module Data is not received from the No. 2 skid control ECU (brake actuator assembly) via CAN communication for 3 seconds or more.
  • No. 2 skid control ECU (brake actuator assembly)
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U0124 Lost Communication with Lateral Acceleration Sensor Module Data is not received from the yaw rate and acceleration sensor (airbag sensor with ECU assembly) via CAN communication for 3 seconds or more.
  • Yaw rate and acceleration sensor (airbag sensor with ECU assembly)
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U0126 Lost Communication with Steering Angle Sensor Module Data is not received from the steering sensor via CAN communication for 3 seconds or more.
  • Steering sensor
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U1103 Lost Communication with Stop and Start Control Module While driving at 30 km/h (19 mph) or more, data is not received via CAN communication for 3 seconds or more.
  • Engine stop and start ECU
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
U114C Lost Communication with Suspension Control Module 1 Data is not received from the suspension control ECU via CAN communication for 3 seconds or more.
  • Suspension control ECU
  • CAN communication system
  • Absorber control ECU
 Yes Adaptive Variable Suspension System B
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