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Home >> Lexus >> 2019 >> GS F >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes & Symptom Tests >> Navigation System >> DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine ECU Communication; DTC U0126: Steering Sensor Communication; DTC U0129: VSC (ECB) ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0233: Lost Communication with Blind Spot Monitor Master Module; DTC U1110: Clearance Sonar ECU Communication [10/2015 - ] >> Procedure

DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine ECU Communication; DTC U0126: Steering Sensor Communication; DTC U0129: VSC (ECB) ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0233: Lost Communication with Blind Spot Monitor Master Module; DTC U1110: Clearance Sonar ECU Communication [10/2015 - ]: Procedure

  1. CHECK DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

      Body Electrical > Navigation System > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

      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 [10/2015 - 09/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2016 - 09/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2017 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]