LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2011 >> HS 250h >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (P0AC0-817 - U0424-537) & Circuit Tests) >> Hybrid Control System >> DTC U0100-211: Lost Communication with ECM / PCM "A"; DTC U0100-212: Lost Communication with ECM / PCM "A"; DTC U0100-530: Lost Communication with ECM / PCM "A"; DTC U0100-774: Lost Communication with ECM / PCM "A"; DTC U0100-784: Lost Communication with ECM / PCM "A"; DTC U0129-220: Lost Communication with Brake System Control Module; DTC U0129-222: Lost Communication with Brake System Control Module; DTC U0129-527: Lost Communication with Brake System Control Module; DTC U0129-528: Lost Communication with Brake System Control Module; DTC U0129-529: Lost Communication with Brake System Control Module; DTC U0140-146: Lost Communication with Body Control Module; DTC U1107-436: Lost Communication with Power Management Module >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0100-211: Lost Communication with ECM / PCM "A"; DTC U0100-212: Lost Communication with ECM / PCM "A"; DTC U0100-530: Lost Communication with ECM / PCM "A"; DTC U0100-774: Lost Communication with ECM / PCM "A"; DTC U0100-784: Lost Communication with ECM / PCM "A"; DTC U0129-220: Lost Communication with Brake System Control Module; DTC U0129-222: Lost Communication with Brake System Control Module; DTC U0129-527: Lost Communication with Brake System Control Module; DTC U0129-528: Lost Communication with Brake System Control Module; DTC U0129-529: Lost Communication with Brake System Control Module; DTC U0140-146: Lost Communication with Body Control Module; DTC U1107-436: Lost Communication with Power Management Module: Procedure

  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Check for DTCs of all systems by following the prompts on the Techstream screen.

      HINT: 

      If DTCs other than CAN communication DTCs are output simultaneously, first repair the CAN communication problem, and then perform troubleshooting for other DTCs.

    NEXT → See step   2 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING