Toyota Corolla (E120): Noise occurs

Inspection procedure

1 Check of speaker installation

  1. Check speaker installation condition.
  1.  Check that each speaker is securely installed.

    Standard: malfunction disappear.

Hint

: the radio is equipped with noise prevention system that does not work against the regular use of the radio, thereby excessively large noise cannot occur in the radio. If large noise occurs, check whether or not the earth on the antenna installation part and the proper noise–prevention equipment are all installed, and whether or not the improper wiring is held.

Hint:

Hint

:

  • identify the condition under which the noise occurs, and check the noise filter on the related part.
  • Make sure first that there is no noise from outside. Failing to do so makes the noise occurrence source detection impossible and leads to misunderstanding.
  • The noise should be removed in descending order of loudness.

Identification of noise source

Identification of noise source

    Share this page:

    Other materials:

    Speedometer sensor (atm)
    Replacement 1. Remove air cleaner case 2. Remove air cleaner hose no.1 3. Remove speedometer sensor  disconnect the connector.  remove the bolt and speedometer sensor assembly.  remove the clip and driven gear from the speedometer sensor. 4. Install speedometer sensor ...

    Power outlet
    The power outlet can be used for 12 V accessories that run on less than 10 A. Lift the lid while pulling up the knob and open the power outlet lid. ■The power outlet can be used when The engine switch is in ACC or ON. ■When turning the engine switch off Disconnect electrical devices with charg ...

    Installing tire pressure warning valves and transmitters (vehicles with a tire pressure warning system)
    When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer and the tire pressure warning system must be initialized. ...