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Home >> Lexus >> 2009 >> LS 460 AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Parking Brake System >> Parking Brake >> Electric Parking Brake System >> DTC U0073/51 Control Module Communication Bus OFF; DTC U0100/53 Lost Communication with ECM/PCM; DTC U0124/55 Lost Communication with Lateral Acceleration Sensor Module; DTC U0129/52 Lost Communication with Brake System Control Module >> Inspection Procedure
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Inspection Procedure

  1. CHECK DTC 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and the Techstream on.
    4. Clear the DTC (See DTC CHECK/CLEAR  ).
    5. Turn the engine switch off.
    6. Turn the engine switch on (IG) and check for DTC.

      Result 

      RESULT CHART

      Result Proceed to
      DTC is output A
      DTC is not output B

      B: USE SIMULATION METHOD TO CHECK  (See HOW TO PROCEED WITH TROUBLESHOOTING )

      A: GO TO CAN COMMUNICATION SYSTEM  (See CAN COMMUNICATION SYSTEM )

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