LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Stop And Start System - Diagnostic Codes (2 Of 2) & Circuit Tests >> Stop And Start System >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0114-87: Lost Communication with Four-Wheel Drive Clutch Control 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 U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U114C-87: Lost Communication with Air Suspension Control Module "A" Missing Message; DTC U1170-87: Lost Communication With Brake System Control Module (ch2) Missing Message [12/2021 - 10/2023] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0114-87: Lost Communication with Four-Wheel Drive Clutch Control 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 U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U114C-87: Lost Communication with Air Suspension Control Module "A" Missing Message; DTC U1170-87: Lost Communication With Brake System Control Module (ch2) Missing Message [12/2021 - 10/2023]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs.

      Powertrain > Stop and Start > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK DTC OUTPUT 

    Pre-procedure1

    1. Turn the ignition switch off and wait for 30 seconds or more.
    2. Turn the ignition switch to ON.
    3. Start the engine.
    4. Perform a road test.
    5. Enter the following menus: Powertrain / Stop and Start / Trouble Codes.

      Procedure1

    6. Read the DTCs.

      Powertrain > Stop and Start > Trouble Codes 

      Result

      Result Proceed to
      U0100-87, U0101-87, U0114-87, U0126-87, U0129-87, U0131-87, U0140-87, U0151-87, U0155-87, U0164-87, U1110-87, U114C-87 or U1170-87 is output A
      U0100-87, U0101-87, U0114-87, U0126-87, U0129-87, U0131-87, U0140-87, U0151-87, U0155-87, U0164-87, U1110-87, U114C-87 or U1170-87 is not output B

      Post-procedure1

    7. None

    Result: 

    A 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ] 

    Result: 

    B 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - ] 

scientia non olet · About LEMON Manuals