LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2016 >> GS 200t Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Forward Recognition Camera System (Diagnostic Codes & Circuit Tests) >> Forward Recognition Camera System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0134: Lost Communication with DRS Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0182: Lost Communication with AFS ECU [10/2015 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0134: Lost Communication with DRS Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0182: Lost Communication with AFS ECU [10/2015 - ]: Procedure

  1. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

    2. Perform the following procedure.

      HINT: 

      If the following procedure is not performed, the previously output DTC cannot be detected.

      1. Turn the engine switch on (IG) and wait 2 seconds or more.
      2. Drive the vehicle at a speed of 1 km/h or 1 mph or more for 5 seconds or more.
    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

      Result

      Result Proceed to
      DTC U0100, U0101, U0123, U0129, U0134 U0142 and U0182 are not output A
      DTC U0100, U0101, U0123, U0129, U0134 U0142 or U0182 is output B

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

    Result: 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]