NAVIGATION SYSTEM (for DVD) Noise Occurs

INSPECTION PROCEDURE

PROCEDURE


  1. NOISE CONDITION


    1. Check from which direction the noise comes.


      • Front No. 1 speaker LH

      • Front No. 1 speaker RH

      • Rear No. 1 speaker LH

      • Rear No. 1 speaker RH

      • Front No. 2 speaker LH

      • Front No. 2 speaker RH

      OK
      The location of the noise source can be determined.

    NG

    CHECK NOISE CONDITIONS Click here

    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 malfunctions.

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

    A

    REINSTALL SPEAKER

    B

    REMOVE FOREIGN OBJECT

    C

    REPLACE SPEAKER

    D

  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 when the horn switch is pressed and released or when pressed and held. Horn
      Noise occurs synchronously with the blink of the turn signal. 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 chart, find the situation that matches the customer complaint. Then, in the right column, find the part that is causing the noise. Check the noise filter on or for the part.

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

      • Noise should be removed in descending order of loudness.

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

      OK
      The noise source cannot be determined.

    NG

    REPAIR OR REPLACE NOISE SOURCE

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here