METER / GAUGE SYSTEM, Diagnostic DTC:B150A

DTC Code DTC Name
B150A Lost Communication with HMI-LAN

DESCRIPTION

The combination meter assembly (meter circuit plate) receives text data signals from the navigation receiver assembly*1 or radio and display receiver assembly*2 via local bus communication.

Based on these signals, audio and visual system or navigation system information is displayed on the multi-information display.

This DTC is stored when the combination meter assembly (meter circuit plate) cannot receive the signal.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B150A Lost Communication with HMI-LAN

Diagnosis Condition:


  • A registration information signal was received from the Navigation receiver assembly*1 or Radio and display receiver assembly*2 when ACC power source voltage was received by the Navigation receiver assembly*1 or Radio and display receiver assembly*2.

  • The power switch is on (IG).

  • IG power source voltage is 9.5 V or more.

Malfunction Status:


  • The registration information signal is not received from the Navigation receiver assembly*1 or Radio and display receiver assembly*2.

Malfunction Time:


  • 30 seconds or more

  • Harness or connector

  • Navigation receiver assembly*1

  • Radio and display receiver assembly*2

  • Combination meter assembly (Meter circuit plate)

 DTC stored -

WIRING DIAGRAM


  1. w/ Navigation System

    B004QGTE05

  2. w/o Navigation System

    B004OXOE84
    *a Radio and Display Receiver Assembly
    *b Combination Meter Assembly (Meter Circuit Plate)
    *c Local Bus Communication Line

CAUTION / NOTICE / HINT

Tech Tips

DTC B150A may be stored if the auxiliary battery voltage dropped.

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 Click here

    A

  2. CHECK FOR DTC


    1. Check if navigation system DTCs are output.


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

    B

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

    A

  3. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Radio and Display Type A
      for Navigation Receiver Type B

    B

    CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) - NAVIGATION RECEIVER ASSEMBLY) Click here

    A

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


    1. Disconnect the F6 combination meter assembly (meter circuit plate) connector.

    2. Disconnect the F34 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
      F6-33 (MSCH) - F34-3 (CNH1) Always Below 1 Ω
      F6-34 (MSCL) - F34-4 (CNL1) Always Below 1 Ω
      F6-33 (MSCH) or F34-3 (CNH1) - Body ground Always 10 kΩ or higher
      F6-34 (MSCL) or F34-4 (CNL1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE)


    1. Replace the combination meter assembly (meter circuit plate) with a new or known good one.

      Tech Tips

      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 (meter circuit plate) and navigation receiver assembly.

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

    4. Check for DTCs.


      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. B

    A

    END

    B

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  6. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) - NAVIGATION RECEIVER ASSEMBLY)


    1. Disconnect the F6 combination meter assembly (meter circuit plate) connector.

    2. Disconnect the F95 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F6-33 (MSCH) - F95-3 (CNH1) Always Below 1 Ω
      F6-34 (MSCL) - F95-4 (CNL1) Always Below 1 Ω
      F6-33 (MSCH) or F95-3 (CNH1) - Body ground Always 10 kΩ or higher
      F6-34 (MSCL) or F95-4 (CNL1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE)


    1. Replace the combination meter assembly (meter circuit plate) with a new or known good one.

      Tech Tips

      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 (meter circuit plate) and navigation receiver assembly.

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

    4. Check for DTCs.


      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. B

    A

    END

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

  8. CHECK FOR DTC


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


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

    B

    GO TO AUDIO AND VISUAL SYSTEM Click here

    A

  9. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE) - RADIO AND DISPLAY RECEIVER ASSEMBLY)


    1. Disconnect the F6 combination meter assembly (meter circuit plate) connector.

    2. Disconnect the F34 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
      F6-33 (MSCH) - F34-3 (CNH1) Always Below 1 Ω
      F6-34 (MSCL) - F34-4 (CNL1) Always Below 1 Ω
      F6-33 (MSCH) or F34-3 (CNH1) - Body ground Always 10 kΩ or higher
      F6-34 (MSCL) or F34-4 (CNL1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE)


    1. Replace the combination meter assembly (meter circuit plate) with a new or known good one.

      Tech Tips

      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 (meter circuit plate) and radio and display receiver assembly.

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

    4. Check for DTCs.


      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. B

    A

    END

    B

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here