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Home >> Toyota >> 2017 >> Sienna LE, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes & Symptom Tests >> Navigation System >> Diagnostic Codes >> DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Lost Communication with ECM; 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 U0265: Lost Communication with Parking Assist Monitor Module; DTC U1110: Clearance Sonar ECU Communication [11/2017 - ] >> Procedure
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DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Lost Communication with ECM; 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 U0265: Lost Communication with Parking Assist Monitor Module; DTC U1110: Clearance Sonar ECU Communication [11/2017 - ]: Procedure

  1. CHECK DTC 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [11/2017 - ] ).
    2. Recheck for DTCs and check that no DTCs are output.

      OK

      No DTCs are output.

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - ] )

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - ] )