METER / GAUGE SYSTEM, Diagnostic DTC:B1321

DTC Code DTC Name
B1321 Lost Communication with EMV

DESCRIPTION

The combination meter assembly and radio receiver assembly communicate via local bus communication. This allows audio and visual system or navigation system information to be displayed on the multi-information display.

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

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B1321 Lost Communication with EMV

Diagnosis Condition:


  • The power switch is on (IG)

  • IG power source voltage is 9.5 V or more

Malfunction Status:


  • No communication with radio receiver assembly

Malfunction Time:


  • 30 seconds or more

  • Radio receiver assembly

  • Remote touch (Remote operation controller assembly)

  • Harness or connector

  • Combination meter assembly

WIRING DIAGRAM

B004EFQE06
*a Radio Receiver Assembly
*b Combination Meter Assembly
*c Remote Touch (Remote Operation Controller Assembly)
*d Local Bus Communication Line

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for Navigation System A
      for Audio and Visual System (7 Inch Display) B
      for Audio and Visual System (10.3 Inch Display) C

    B

    CHECK FOR DTC (AUDIO AND VISUAL SYSTEM (7 Inch Display)) Click here

    C

    CHECK FOR DTC (AUDIO AND VISUAL SYSTEM (10.3 Inch Display)) Click here

    A

  2. CHECK FOR DTC (NAVIGATION SYSTEM)


    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 Click here

  3. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM (7 Inch Display))


    1. Check if audio and visual system (7 Inch Display) 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 (7 Inch Display) Click here

  4. CHECK FOR DTC (AUDIO AND VISUAL SYSTEM (10.3 Inch Display))


    1. Check if audio and visual system (10.3 Inch Display) 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 (10.3 Inch Display) Click here

    A

  5. CHECK REMOTE TOUCH (REMOTE OPERATION CONTROLLER ASSEMBLY)


    1. Check that the multi-display assembly can be operated by operating the remote touch (remote operation controller assembly).

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here