LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> RX 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Parking Assist Monitor System - Diagnostic Codes & Symptom Tests >> Parking Assist Monitor System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [09/2015 - 08/2019] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [09/2015 - 08/2019]: Procedure

  1. CHECK DTC OUTPUT 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

      Chassis > Parking Assist Camera > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [09/2015 - 08/2019]

      Chassis > Parking Assist Camera > Trouble Codes 

      HINT: 

      Result

      Result Proceed to
      DTCs are output A
      No DTCs are output B

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] 

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 08/2019]