AUDIO AND VISUAL SYSTEM(for Radio and Display Type) Noise Occurs

PROCEDURE


  1. NOISE CONDITION


    1. Check from which direction the noise comes (front left or right, or rear left or right).

      OK
      The location of the noise source can be determined.

    NG
    OK
  2. CHECK SPEAKERS


    1. Check the installation conditions of the speaker units that are located near the noise source and that there are no cracks, scratches, deformation or other failures.

      Result
      Result Proceed to
      No malfunction is found A
      A speaker is installed incorrectly B
      Foreign objects are in the speaker C
      A speaker cone paper is broken D

    B
    C
    D
    A
  3. CHECK NOISE CONDITIONS


    1. Check the noise condition.

      Tech Tips

      The radio has a noise prevention function to reduce noise when listening to the radio. If a loud noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly.

      Condition Under Which Noise Occurs Noise Source
      Noise increases when the accelerator pedal is depressed, but stops when the engine is stopped. Generator
      Noise occurs during A/C or heater operation. Blower motor
      Noise occurs during window defogger operation Back door glass (window defogger)
      Noise occurs when the horn switch is pressed and released or when pressed and held. Horn
      Noise occurs synchronously with the turn signal blinking pattern. Flasher
      Noise occurs during window washer operation. Washer
      Noise occurs during wiper operation. Wiper
      Noise occurs when the brake pedal is depressed. Stop light switch
      Others Static electricity

      Tech Tips


      • In the left column of the table, find the situation that matches the customer's complaint. Then, in the right column, find the part that is causing the noise. Check the respective noise filter.

      • To save time and avoid a misdiagnosis, first make sure that the noise is not coming from outside the vehicle.

      • Troubleshoot noises in descending order of loudness.

      • Setting the radio to a frequency where no signal is received may make recognition of the noise problem easier.

      Result
      Result Proceed to
      The noise source cannot be determined A
      The noise source can be determined B

    A
    B