NAVIGATION SYSTEM, Diagnostic DTC:B1324

DTC Code DTC Name
B1324 Lost Communication with Meter

DESCRIPTION

This DTC is stored when a communication error occurs between the radio and display receiver assembly and combination meter assembly.

DTC Code DTC Detection Condition Trouble Area
B1324 After the radio and display receiver assembly receives a registration information signal, which is sent by the combination meter assembly when the ignition switch is ACC, 1 or more times, the radio and display receiver assembly cannot receive the signal for 30 seconds or more.

  • Combination meter assembly

  • Radio and display receiver assembly

  • Harness or connector

WIRING DIAGRAM

A0055QZE01
*a Combination Meter Assembly
*b Radio and Display Receiver Assembly
*c Local Bus Communication Line

CAUTION / NOTICE / HINT

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections Click here.

PROCEDURE


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


    1. Disconnect the D133 radio and display receiver assembly connector.

    2. Disconnect the D66 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D133-3 (CNH1) - D66-36 (MSCH) Always Below 1 Ω
      D133-4 (CNL1) - D66-37 (MSCL) Always Below 1 Ω
      D133-3 (CNH1) - Body ground Always 10 kΩ or higher
      D133-4 (CNL1) - Body ground Always 10 kΩ or higher
      D133-3 (CNH1) - D133-4 (CNL1) 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
      D133-3 (CNH1) - Body ground Always Below 1 V
      D133-4 (CNL1) - Body ground Always Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT COMBINATION METER ASSEMBLY


    1. A0053Q6E06

      Remove the combination meter assembly Click here.

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

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

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  3. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A0055I0E03

      Remove the radio and display receiver assembly Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (CNH1) - 4 (CNL1) Always 108 to 132 Ω

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  4. CHECK COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      No DTCs are output.

    OK

    END (COMBINATION METER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here