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Home >> Lexus >> 2025 >> RX 350h Premium >> Repair and Diagnosis (Single Page) >> Suspension >> Suspension Control Systems >> Adaptive Variable Suspension System - Diagnostic Codes >> Adaptive Variable Suspension System >> DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0134-87: Lost Communication with Power Steering Control Module Rear Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1171-87: Lost Communication with Brake System Control Module (ch3) Missing Message [10/2022 - 08/2023] >> Description
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DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0134-87: Lost Communication with Power Steering Control Module Rear Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1171-87: Lost Communication with Brake System Control Module (ch3) Missing Message [10/2022 - 08/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
U0100-87 Lost Communication With ECM/PCM "A" Missing Message While the vehicle speed is 30 km/h (19 mph) or higher, CAN communication from the ECM stops for 6 seconds or more
  • CAN communication system
  • ECM
  • Absorber control ECU
 Adaptive Variable Suspension System B for Gasoline Model
U0101-87 Lost Communication with TCM Missing Message While the vehicle speed is 30 km/h (19 mph) or higher, CAN communication from the ECM stops for 6 seconds or more*1
While the vehicle speed is 30 km/h (19 mph) or higher, CAN communication from the hybrid vehicle control ECU stops for 6 seconds or more*3
While the vehicle speed is 30 km/h (19 mph) or higher, CAN communication from the TCM stops for 6 seconds or more*4
  • CAN communication system
  • ECM*1
  • Hybrid vehicle control ECU*3
  • TCM*4
  • Absorber control ECU
 Adaptive Variable Suspension System B -
U0125-87 Lost Communication With Multi-axis Acceleration Sensor Module Missing Message While the vehicle speed is 7 km/h (5 mph) or higher, CAN communication from the yaw rate and acceleration sensor (airbag sensor with ECU assembly) stops or 3 seconds or more
  • Yaw rate and acceleration sensor (airbag sensor with ECU assembly)
  • CAN communication system
  • Absorber control ECU
 Adaptive Variable Suspension System B -
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message CAN communication from the steering sensor stops for 3 seconds or more
  • CAN communication line
  • Steering sensor
  • Absorber control ECU
 Adaptive Variable Suspension System B -
U0129-87 Lost Communication With Brake System Control Module Missing Message CAN communication from the skid control ECU (brake actuator assembly) stops for 3 seconds or more*1
CAN communication from the No. 2 skid control ECU (brake actuator assembly) stops for 3 seconds or more*2
  • CAN communication line
  • Skid control ECU (brake actuator assembly)*1

    No. 2 skid control ECU (brake actuator assembly)*2

  • Absorber control ECU
 Adaptive Variable Suspension System B -
U0134-87 Lost Communication with Power Steering Control Module Rear Missing Message CAN communication from the rear steering link assembly stops for 3 seconds or more
  • CAN communication line
  • Rear steering link assembly
  • Absorber control ECU
 Adaptive Variable Suspension System B w/ Dynamic Rear Steering System
U0293-87 Lost Communication With Hybrid Powertrain Control Module Missing Message While the vehicle speed is 30 km/h (19 mph) or higher, CAN communication from the hybrid vehicle control ECU assembly stops for 3 seconds or more
  • CAN communication line
  • Hybrid vehicle control ECU assembly
  • Absorber control ECU
 Adaptive Variable Suspension System B except Gasoline Model
U1103-87 Lost Communication with Stop and Start Control Module Missing Message CAN communication from the engine stop and start ECU stops for 3 seconds or more
  • CAN communication line
  • Engine stop and start ECU
  • Absorber control ECU
 Adaptive Variable Suspension System B w/ Stop and Start System
U1171-87 Lost Communication with Brake System Control Module (ch3) Missing Message CAN communication from the skid control ECU (brake actuator assembly) stops for 3 seconds or more*1
CAN communication from the No. 2 skid control ECU (brake actuator assembly) stops for 3 seconds or more*2
  • CAN communication line
  • Skid control ECU (brake actuator assembly)*1
  • No. 2 skid control ECU (brake actuator assembly)*2
  • Absorber control ECU
 Adaptive Variable Suspension System B -
  1. *1: for Gasoline Model
  2. *2: except Gasoline Model
  3. *3: for HEV Model
  4. *4: for 1Motor-HEV Model
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