METER / GAUGE SYSTEM, Diagnostic DTC:B150A

DTC Code DTC Name
B150A Lost Communication with HMI-LAN

DESCRIPTION

The combination meter assembly receives a text data signal from the navigation receiver assembly*1 or radio and display receiver assembly*2 via local bus communication.

Based on this signal, navigation system information is displayed on the multi-information display.

This DTC is stored when the combination meter assembly cannot receive the signal.


DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B150A Lost Communication with HMI-LAN After the combination meter assembly receives a registration information signal, which is sent by the navigation receiver assembly*1 or radio and display receiver assembly*2 when the ignition switch is ACC, 1 or more times, the combination meter assembly cannot receive the signal for 30 seconds or more.

  • Harness or connector

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

  • Combination meter assembly

 DTC stored -

WIRING DIAGRAM


  1. for Navigation Receiver Type

    A0029M5E05
    *a Navigation Receiver Assembly
    *b Combination Meter Assembly
    *c Local Bus Communication Line

  2. for Radio and Display Type

    A0029M5E06
    *a Radio and Display Receiver Assembly
    *b Combination Meter Assembly
    *c Local Bus Communication Line

PROCEDURE


  1. CHECK FOR DTC


    1. Check if Navigation System DTCs are output.

      for Navigation Receiver Type: Click here

      for Radio and Display Type: Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      Navigation system DTCs are not output.
      Result
      Result Proceed to
      Navigation system DTCs are not output A
      Navigation system DTCs are output B

    B

    GO TO NAVIGATION SYSTEM for Navigation Receiver Type: Click here
    GO TO NAVIGATION SYSTEM for Radio and Display Type: Click here

    A

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY OR RADIO AND DISPLAY RECEIVER ASSEMBLY)


    1. Disconnect the F126 combination meter assembly connector.

    2. Disconnect the F117 navigation receiver assembly*1 or F72 radio and display receiver assembly*2 connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F117-3 (CNH1) - F126-29 (MSCH)*1 Always Below 1 Ω
      F117-4 (CNL1) - F126-30 (MSCL)*1 Always Below 1 Ω
      F72-3 (CNH1) - F126-29 (MSCH)*2 Always Below 1 Ω
      F72-4 (CNL1) - F126-30 (MSCL)*2 Always Below 1 Ω
      F126-29 (MSCH) - Body ground Always 10 kΩ or higher
      F126-30 (MSCL) - Body ground Always 10 kΩ or higher

      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Type

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly with a new or known good one.

      Click here

    2. Turn the ignition switch to ON and wait 30 seconds.

      Note

      A maximum of 30 seconds is required to send/receive the registration information between the combination meter assembly and navigation receiver assembly*1 or radio and display receiver assembly*2.


      • *1: for Navigation Receiver Type

      • *2: for Radio and Display Type

    3. Operate the steering pad switch assembly and check that the audio tab illuminates.

    4. Check for DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      Result
      Result Proceed to
      The audio tab illuminates and DTC B150A is not output A
      The audio tab does not illuminate and DTC B150A is output (for Navigation Receiver Type) B
      The audio tab does not illuminate and DTC B150A is output (for Radio and Display Type) C

    A

    END

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    C

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here