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Home >> Lexus >> 2014 >> GS 450h >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Rear View Monitor System (Diagnostic Codes & Symptom Tests) >> Rear View Monitor System >> DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU [09/2013 - ] >> Procedure
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DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU [09/2013 - ]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs. Refer to DIAGNOSIS SYSTEM [09/2013 - ] .

    NEXT: Go to next step 

  2. CHECK FOR DTC (CAN COMMUNICATION SYSTEM) 
    1. Check for DTCs. Refer to DIAGNOSIS SYSTEM [09/2013 - ] .

      OK

      DTC is not output.

    NG → See step   4 

    OK → See step   3 

  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2013 - ] 
  4. Go to CAN COMMUNICATION SYSTEM. Refer to  DIAGNOSIS SYSTEM [09/2013 - ]