METER / GAUGE SYSTEM, Diagnostic DTC:B150A

DTC Code DTC Name
B150A Lost Communication with HMI-LAN

DESCRIPTION

The Combination meter sub-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, audio and visual system or navigation system information is displayed on the multi-information display.

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

DTC No. DTC Detection Condition Trouble Area
B150A After the combination meter sub-assembly receives a registration information signal, which is sent by the navigation receiver assembly*1 or radio and display receiver assembly*2 when the power switch is turned on (ACC), 1 or more times, the combination meter sub-assembly does not receive the signal for 30 seconds or more.

  • Harness or connector

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

  • Combination meter sub-assembly

WIRING DIAGRAM


  1. for Navigation receiver type

    B005YPCE03

  2. for Radio and display type

    B005YPCE04

PROCEDURE


  1. CONFIRM VEHICLE TYPE


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Navigation receiver type A
      for Radio and display type B

    B

    CHECK FOR DTC Click here

    A

  2. CHECK FOR DTC


    1. Check if navigation system DTCs are output Click here.

      Result
      Result Proceed to
      Navigation system DTCs are not output. A
      Navigation system DTCs are output. B

    B

    GO TO NAVIGATION SYSTEM Click here

    A

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER SUB-ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY)


    1. Disconnect the L27 combination meter sub-assembly connector.

    2. Disconnect the L172*1 or L173*2 navigation receiver assembly connector.


      • *1: w/o Intelligent parking assist system

      • *2: w/ Intelligent parking assist system

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

      Standard Resistance
      w/o Intelligent parking assist system
      Tester Connection Condition Specified Condition
      L27-29 (MSCL) - L172-4 (CNL1) Always Below 1 Ω
      L27-28 (MSCH) - L172-3 (CNH1) Always Below 1 Ω
      L27-29 (MSCL) - Body ground Always 10 kΩ or higher
      L27-28 (MSCH) - Body ground Always 10 kΩ or higher
      w/ Intelligent parking assist system
      Tester Connection Condition Specified Condition
      L27-29 (MSCL) - L173-4 (CNL1) Always Below 1 Ω
      L27-28 (MSCH) - L173-3 (CNH1) Always Below 1 Ω
      L27-29 (MSCL) - Body ground Always 10 kΩ or higher
      L27-28 (MSCH) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE COMBINATION METER SUB-ASSEMBLY


    1. Replace the combination meter sub-assembly with a new or known good one Click here.

    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 sub-assembly and navigation receiver assembly.

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

    4. Check for DTCs Click here.

      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. B

    A

    END

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

  5. CHECK FOR DTC


    1. w/ Navigation system


      1. Check if navigation system DTCs are output Click here.

        Result
        Result Proceed to
        Navigation system DTCs are not output. A
        Navigation system DTCs are output. B

    2. w/o Navigation system


      1. Check if audio and visual system DTCs are output Click here.

        Result
        Result Proceed to
        Audio and visual system DTCs are not output. A
        Audio and visual system DTCs are output. C

    B

    GO TO NAVIGATION SYSTEM Click here

    C

    GO TO AUDIO AND VISUAL SYSTEM Click here

    A

  6. CHECK HARNESS AND CONNECTOR (COMBINATION METER SUB-ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)


    1. Disconnect the L27 combination meter sub-assembly connector.

    2. Disconnect the I168*1 or L169*2 radio and display receiver assembly connector.


      • *1: w/ Rear view monitor system

      • *2: w/ Intelligent parking assist system

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

      Standard Resistance
      w/ Rear view monitor system
      Tester Connection Condition Specified Condition
      L27-29 (MSCL) - L168-4 (CNL1) Always Below 1 Ω
      L27-28 (MSCH) - L168-3 (CNH1) Always Below 1 Ω
      L27-29 (MSCL) - Body ground Always 10 kΩ or higher
      L27-28 (MSCH) - Body ground Always 10 kΩ or higher
      w/ Intelligent parking assist system
      Tester Connection Condition Specified Condition
      L27-29 (MSCL) - L169-4 (CNL1) Always Below 1 Ω
      L27-28 (MSCH) - L169-3 (CNH1) Always Below 1 Ω
      L27-29 (MSCL) - Body ground Always 10 kΩ or higher
      L27-28 (MSCH) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE COMBINATION METER SUB-ASSEMBLY


    1. Replace the combination meter sub-assembly with a new or known good one Click here.

    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 sub-assembly and radio and display receiver assembly.

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

    4. Check for DTCs Click here.

      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. B

    A

    END

    B

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here