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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering >> Diagnostic Trouble Code Chart >> DTC U0129 Lost Communication with Brake System Control Module; DTC U0130 Lost Communication with Steering Effort Control Module; DTC U1104 Lost Communication with Driving Support ECU; DTC U1105 Lost Communication with Parking Assist ECU >> Inspection Procedure
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Inspection Procedure

  1. CHECK DTC 
    1. Using the Intelligent tester or Techstream, check for DTCs (see DTC CHECK / CLEAR  ).

      Result 

      RESULT CHART

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

    B: GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)  (See HOW TO PROCEED WITH TROUBLESHOOTING ).

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