LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2021 >> NX 300h Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display System - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> DTC B150B: Lost Communication with Gigabit Video Interface [10/2014 - 09/2017] >> Procedure

DTC B150B: Lost Communication with Gigabit Video Interface [10/2014 - 09/2017]: Procedure

  1. CHECK FOR DTC (NAVIGATION SYSTEM) 
    1. Check for DTCs.

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

      Body Electrical > Navigation System > Trouble Codes 

      OK

      DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO NAVIGATION SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2014 - 09/2017] 

    Result: 

    OK 

    See step  2

  2. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM) 
    1. Check for DTCs.

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

      Body Electrical > Navigation System > Trouble Codes 

      OK

      DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO AUDIO AND VISUAL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 09/2017] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (GVIF CABLE) 
    1. Replace the harness and connector (GVIF cable) with a new or normally functioning one.
    2. Turn the power switch on (IG) and wait 30 seconds.
      NOTE:

      A maximum of 30 seconds is required to send/receive the registration information between the combination meter assembly and radio receiver assembly.

    3. Operate the steering pad switch assembly and check that the audio tab illuminates.
      GTY518921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Multi-information Display
      *b Screen
    4. Check for DTCs and check the display status of the multi-information display.

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

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      The audio information illuminates and DTC B150B is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (GVIF CABLE IS DEFECTIVE) 

    Result: 

    NG 

    See step  4

  4. CHECK COMBINATION METER ASSEMBLY 
    1. Replace the combination meter assembly.

      Refer to REMOVAL [10/2014 - 09/2017]

    2. Turn the power switch on (IG) and wait 30 seconds.
      NOTE:

      A maximum of 30 seconds is required to send/receive the registration information between the combination meter assembly and radio receiver assembly.

    3. Operate the steering pad switch assembly and check that the audio tab illuminates.
      GTY518921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Multi-information Display
      *b Screen
    4. Check for DTCs and check the display status of the multi-information display.

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

      Body Electrical > Combination Meter > Trouble Codes 

      OK

      The audio information illuminates and DTC B150B is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (COMBINATION METER ASSEMBLY IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]