AUDIO AND VISUAL SYSTEM(w/ Multi-display), Diagnostic DTC:B1324

DTC Code DTC Name
B1324 Lost Communication with Meter

DESCRIPTION

This DTC is stored when a communication error occurs between the multi-media module receiver assembly and combination meter assembly.

DTC No. DTC Detection Condition Trouble Area
B1324 After the multi-media module receiver assembly receives a registration information signal, which is sent by the combination meter assembly when the engine switch is on (ACC), 1 or more times, the multi-media module receiver assembly does not receive the signal for 30 seconds or more.

  • Combination meter assembly

  • Multi-media module receiver assembly

  • Harness or connector

WIRING DIAGRAM

B00207BE80
*1 Combination Meter Assembly
*2 Multi-media Module Receiver Assembly
*3 Local Bus Communication Line

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the F77 multi-media module receiver assembly connector.

    2. Disconnect the E119 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-20 (CNH2) - E119-37 (MSCH) Always Below 1 Ω
      F77-21 (CNL2) - E119-38 (MSCL) Always Below 1 Ω
      F77-20 (CNH2) - Body ground Always 10 kΩ or higher
      F77-21 (CNL2) - Body ground Always 10 kΩ or higher
      F77-20 (CNH2) - F77-21 (CNL2) Always 10 kΩ or higher

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      F77-20 (CNH2) - Body ground Always Below 1 V
      F77-21 (CNL2) - Body ground Always Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT COMBINATION METER ASSEMBLY


    1. Remove the combination meter assembly Click here.

    2. B001WYTE02
      *1 LCL+
      *2 LCL-

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      37 (MSCH) - 38 (MSCL) Always 108 to 132 Ω

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  3. INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. Remove the multi-media module receiver assembly Click here.

    2. B001XDOE01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      20 (CNH2) - 21 (CNL2) Always 108 to 132 Ω

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  4. REPLACE COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly with a new one Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  5. CHECK METER / GAUGE SYSTEM


    1. Turn the engine switch on (IG) and wait 30 seconds.

    2. Operate the steering pad switch assembly and check that the audio tab is displayed on the multi-information display in the combination meter assembly and the audio system can be operated normally.

      OK
      Audio system returns to normal.

    OK

    END

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here