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Home >> Lexus >> 2017 >> NX 200t Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes (1 Of 2) & Symptom Tests >> Navigation System >> DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine ECU Communication; DTC U0129: VSC(ECB)ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U1110: Clearance Sonar ECU Communication [10/2014 - 09/2017] >> Procedure
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DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine ECU Communication; DTC U0129: VSC(ECB)ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U1110: Clearance Sonar ECU Communication [10/2014 - 09/2017]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK DTC (CAN COMMUNICATION SYSTEM) 
    1. Recheck for DTCs and check if the same DTC is output again.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 09/2017] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 09/2017]