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 radio receiver assembly 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 assembly cannot receive the signal.

DTC No. DTC Detection Condition Trouble Area
B150A After the combination meter assembly receives a registration information signal, which is sent by the radio receiver assembly when the power switch is on (ACC), 1 or more times, the combination meter assembly cannot receive the signal for 30 seconds or more.

  • Harness or connector

  • Radio receiver assembly

  • Combination meter assembly

WIRING DIAGRAM

B001MUTE52
*a Combination Meter Assembly
*b Radio Receiver Assembly
*c Local Bus Communication Line

PROCEDURE


  1. 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

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


    1. Disconnect the H19 combination meter assembly connector.

    2. Disconnect the H147 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H19-2 (MSCL) - H147-21 (CNL2) Always Below 1 Ω
      H19-1 (MSCH) - H147-20 (CNH2) Always Below 1 Ω
      H19-2 (MSCL) - Body ground Always 10 kΩ or higher
      H19-1 (MSCH) - Body ground Always 10 kΩ or higher

    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 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. B001LQTE01
      Text in Illustration
      *a Multi-information Display
      *b Audio Tab

      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 RECEIVER ASSEMBLY Click here