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Home >> Lexus >> 2015 >> ES 300h >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Parking Assist Monitor System (W/O Parallel Parking Assist) (Diagnostic Codes & Symptom Tests) >> PARKING ASSIST MONITOR SYSTEM (w/o Parallel Parking Assist Function) >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [08/2014 - ] >> Procedure
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U1110: Lost Communication with Intuitive Parking Assist Module [08/2014 - ]: Procedure

  1. CHECK DTC OUTPUT 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2014 - ] .
    2. Recheck for DTCs and check that no DTCs are output. Refer to DTC CHECK / CLEAR [08/2014 - ] .

      HINT: 

      • If CAN communication system DTCs are stored, they may also be stored in other systems.
      • If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
      • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] .

      Result

      Result Proceed to
      DTCs are output A
      No DTCs are output B

    B → See step   3 

    A → See step   2 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] 
  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ]