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Home >> Lexus >> 2019 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Suspension >> Suspension Control Systems >> Active Stabilizer Suspension System - Diagnostic Codes >> Active Stabilizer Suspension System >> DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0129: Lost Communication with Brake System Control Module (Chassis Bus); DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1108: Lost Communication with Front Stabilizer Module; DTC U1109: Lost Communication With Rear Stabilizer Module; DTC U1170: Lost Communication with Brake System Control Module(Chassis Local Bus) [12/2017 - 10/2023] >> Description
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DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0129: Lost Communication with Brake System Control Module (Chassis Bus); DTC U0130: Lost Communication with Steering Effort Control Module; DTC U1108: Lost Communication with Front Stabilizer Module; DTC U1109: Lost Communication With Rear Stabilizer Module; DTC U1170: Lost Communication with Brake System Control Module(Chassis Local Bus) [12/2017 - 10/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0100 Lost Communication With ECM/PCM "A" 1 second or more after the engine switch is turned on (IG) with the power supply voltage between 10 and 16 V, a communication stop occurs with the ECM continuously for 3 seconds or more before active stabilizer suspension system control starts
  • CAN communication system
  • ECM
DTCs common to the front and rear active stabilizers
U0129 Lost Communication with Brake System Control Module (Chassis Bus) 2 seconds or more after the engine switch is turned on (IG) with the power supply voltage between 10 and 16 V, a communication stop occurs with the skid control ECU assembly (*1) or skid control ECU (brake actuator assembly) (*2) continuously for 3 seconds or more
  • CAN communication system
  • Skid control ECU assembly (*1)
  • Skid control ECU (Brake actuator assembly) (*2)
DTCs common to the front and rear active stabilizers
U0130 Lost Communication with Steering Effort Control Module 1 second or more after the engine switch is turned on (IG) with the power supply voltage between 10 and 16 V, a communication stop occurs with the VGRS ECU (front steering control ECU) continuously for 3 seconds or more
  • CAN communication system
  • VGRS ECU (Front steering control ECU)
DTCs common to the front and rear active stabilizers
U1108 Lost Communication with Front Stabilizer Module 1 second or more after the engine switch is turned on (IG), a communication stop occurs between the rear active stabilizer control ECU assembly and front active stabilizer control ECU assembly continuously for 12 seconds or more.
  • CAN communication system
  • Front active stabilizer control ECU assembly
-
U1109 Lost Communication With Rear Stabilizer Module 1 second or more after the engine switch is turned on (IG), a communication stop occurs between the front active stabilizer control ECU assembly and front active stabilizer control ECU assembly continuously for 12 seconds or more.
  • CAN communication system
  • Rear active stabilizer control ECU assembly
-
U1170 Lost Communication with Brake System Control Module(Chassis Local Bus) 2 seconds or more after the engine switch is turned on (IG), a communication stop occurs with the skid control ECU assembly (*1) or skid control ECU (brake actuator assembly) (*2) continuously for 12 seconds or more
  • CAN communication system
  • Skid control ECU assembly (*1)
  • Skid control ECU (Brake actuator assembly) (*2)
DTCs common to the front and rear active stabilizers
  1. *1: w/o Vacuum Brake Booster
  2. *2: w/ Vacuum Brake Booster