AUDIO AND VISUAL SYSTEM(w/ Parking Assist Monitor System), Diagnostic DTC:B1321, B1323, B1563

DTC Code DTC Name
B1321 Lost Communication with EMV
B1323 Lost Communication with Haptic Device
B1563 Haptic Device Disconnected

DESCRIPTION

These DTCs are stored when communication between the radio receiver assembly and remote touch is not possible.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1321 Lost Communication with EMV The radio receiver assembly cannot receive data from the remote touch.

  • Local bus circuit between radio receiver assembly and remote touch (remote operation board)

  • Remote touch (remote operation board) power source circuit

  • Remote touch (remote operation board)

  • Radio receiver assembly
B1323 Lost Communication with Haptic Device The remote touch cannot receive data from the radio receiver assembly.

  • Local bus circuit between radio receiver assembly and remote touch (remote operation board)

  • Remote touch (remote operation board) power source circuit

  • Remote touch (remote operation board)

  • Radio receiver assembly
B1563 Haptic Device Disconnected The remote touch is/was not connected while the power switch is/was on (ACC or IG).

  • Local bus circuit between radio receiver assembly and remote touch (remote operation board)

  • Remote touch (remote operation board) power source circuit

  • Remote touch (remote operation board)

  • Radio receiver assembly

WIRING DIAGRAM

A01MRQ3E03

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - REMOTE TOUCH (REMOTE OPERATION BOARD))


    1. Disconnect the K58 radio receiver assembly connector.

    2. Disconnect the K78 remote touch (remote operation board) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K58-3 (CNH1) - K78-5 (MO+) Always Below 1 Ω
      K58-4 (CNL1) - K78-4 (MO-) Always Below 1 Ω
      K58-3 (CNH1) - Body ground Always 10 kΩ or higher
      K58-4 (CNL1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH (REMOTE OPERATION BOARD) POWER SOURCE)


    1. Disconnect the K78 remote touch (remote operation board) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K78-1 (+B) - Body ground Power switch off 11 to 14 V
      K78-2 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K78-15 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REMOTE TOUCH SELF CHECK (REMOTE TOUCH SWITCH KNOB FEEDBACK FORCE GENERATION CHECK)


    1. A01MRVDC04
      *a Switch Knob
      *b Control Direction
      *c Feedback Force

      Check the remote touch switch knob feedback force.


      1. Move the remote touch switch knob up, down, right and left to check that feedback force is generated.

        OK
        Feedback force is generated.

        Tech Tips

        When the power switch is turned on (ACC), feedback force is generated. When the power switch is turned off, feedback force is not generated, and the remote touch switch knob will move freely.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REMOTE OPERATION BOARD Click here

    OK

  4. REPLACE RADIO RECEIVER ASSEMBLY


    1. Replace the radio receiver assembly with a new or known good one.

      Click here

    2. Check if the same malfunction recurs.

      Result
      Result Proceed to
      Malfunction does not recur (returns to normal) A
      Malfunction recurs B

    A

    END

    B

    REPLACE REMOTE OPERATION BOARD Click here