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Home >> Lexus >> 2017 >> IS 300 Base >> Repair and Diagnosis >> 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 U0130: Lost Communication with VGRS [04/2013 - 10/2016] >> 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 U0130: Lost Communication with VGRS [04/2013 - 10/2016]: Description

The absorber control ECU receives signals from the skid control ECU (brake actuator assembly), steering sensor, yaw rate sensor, ECM, TCM and VGRS ECU (front steering 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 Warning Indicate Note
U0100 Lost Communication with ECM / PCM "A" While driving at 30 km/h (19 mph), CAN communication from the ECM stops for 3 seconds or more.
  • ECM
  • CAN communication system
  • Absorber control ECU
Does not come on -
U0101 Lost Communication With TCM While driving at 30 km/h (19 mph), CAN communication from the ECM or TCM stops for 6 seconds or more.
  • ECM*1
  • TCM*2
  • CAN communication system
  • Absorber control ECU
Does not come on *1: except 2GR-FSE 2WD
*2: for 2GR-FSE 2WD
U0122 Lost Communication with Vehicle Dynamics Control Module CAN communication from the skid control ECU (brake actuator assembly) stops for 3 seconds or more.
  • Skid control ECU (brake actuator assembly)
  • CAN communication system
  • Absorber control ECU
Does not come on -
U0124 Lost Communication with Lateral Acceleration Sensor Module CAN communication from the yaw rate sensor stops for 3 seconds or more.
  • Yaw rate sensor
  • CAN communication system
  • Absorber control ECU
Does not come on -
U0126 Lost Communication with Steering Angle Sensor Module CAN communication from the steering sensor stops for 3 seconds or more.
  • Steering sensor
  • CAN communication system
  • Absorber control ECU
Does not come on -
U0130 Lost Communication with VGRS After the engine switch is turned on (IG) and 5 seconds elapse, CAN communication from the VGRS ECU (front steering control ECU) stops for 3 seconds or more.
  • VGRS ECU (Front steering control ECU)*
  • CAN communication system
  • Absorber control ECU
Does not come on *: w/ VGRS System