NAVIGATION SYSTEM(for Navigation Receiver Type), Diagnostic DTC:B1324

DTC Code DTC Name
B1324 Lost Communication with Meter

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B1324 Lost Communication with Meter After the navigation 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 navigation receiver assembly cannot receive the signal for 30 seconds or more.

  • Combination meter assembly

  • Navigation receiver assembly

  • Harness or connector

WIRING DIAGRAM

A0027ILE01
*a Combination Meter Assembly
*b Navigation Receiver Assembly
*c Local Bus Communication Line

PROCEDURE


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


    1. Disconnect the F117 navigation receiver assembly connector.

    2. Disconnect the F126 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F117-3 (CNH1) - F126-29 (MSCH) Always Below 1 Ω
      F117-4 (CNL1) - F126-30 (MSCL) Always Below 1 Ω
      F117-3 (CNH1) - Body ground Always 10 kΩ or higher
      F117-4 (CNL1) - Body ground Always 10 kΩ or higher
      F117-3 (CNH1) - F117-4 (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
      F117-3 (CNH1) - Body ground Always Below 1 V
      F117-4 (CNL1) - Body ground Always Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT COMBINATION METER ASSEMBLY


    1. Remove the combination meter assembly.

      Click here

    2. A002BI1C02
      *a

      Component without harness connected

      (Combination Meter Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      29 (MSCH) - 30 (MSCL) Always 108 to 132 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  3. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Remove the navigation receiver assembly.

      Click here

    2. A0029SKC02
      *a

      Component without harness connected

      (Navigation Receiver Assembly)

      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
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. REPLACE COMBINATION METER ASSEMBLY


    1. Replace the combination meter assembly with a new or known good one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION 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.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here