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 and display 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 HMI-LAN communication error

  • Harness or connector

  • Radio and display receiver assembly

WIRING DIAGRAM

A004A0EE43
*a Radio and Display Deceiver Assembly
*b Combination Meter Assembly
*c CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • When replacing the combination meter assembly, make sure to replace it with a new one.

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for navigation system.

    Click here

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/ Navigation System A
      w/o Navigation System B

    B

    CHECK FOR DTC (AUDIO AND VISUAL SYSTEM) Click here

    A

  2. CHECK FOR DTC (NAVIGATION SYSTEM)


    1. Check for DTCs.

      Click here

      OK
      DTCs are not output.

    NG

    GO TO NAVIGATION SYSTEM Click here

    OK

  3. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM)


    1. Check for DTCs.

      Click here

      OK
      DTCs are not output.

    NG

    GO TO AUDIO AND VISUAL SYSTEM Click here

    OK

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


    1. Disconnect the F1 combination meter assembly connector.

    2. Disconnect the F125 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F1-23 (MSCH) - F125-3 (CNH1) Always Below 1 Ω
      F1-22 (MSCL) - F125-4 (CNL1) Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly.

      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 radio and display receiver assembly.

    3. A004AJ2C03
      *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

      OK
      The audio tab illuminates and DTC B150A is not output.

    OK

    END (COMBINATION METER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  6. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM)


    1. Check for DTCs.

      Click here

      OK
      DTCs are not output.

    NG

    GO TO AUDIO AND VISUAL SYSTEM Click here

    OK

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


    1. Disconnect the F1 combination meter assembly connector.

    2. Disconnect the F125 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F1-23 (MSCH) -F125-3 (CNH1) Always Below 1 Ω
      F1-22 (MSCL) - F125-4 (CNL1) Always Below 1 Ω

    OK

    CHECK COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR