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Home >> Lexus >> 2019 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System (With Navigation System) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/ 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 U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U1110: Clearance Sonar ECU Communication [08/2015 - 08/2021] >> Procedure
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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 U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U1110: Clearance Sonar ECU Communication [08/2015 - 08/2021]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] ).

    Result: 

    NEXT 

    See step  2

  2. CHECK CAN COMMUNICATION SYSTEM 
    1. Recheck for DTCs and check if the same DTCs are output again (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] ).

      OK

      No DTCs are output.

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 08/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - 08/2021] )

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] )