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Seek Stop Test

Do this test to check the performance of the audio system's AM and FM reception. Refer to AUDIO SYSTEM SOUND WEAK OR DISTORTED  , or NO SOUND IS HEARD FROM THE SPEAKERS  (display is normal), with navigation , without navigation (see NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITHOUT NAVIGATION)  ) before continuing with this test.

NOTE:
  • Window tint, aftermarket theft-recovery devices and other aftermarket devices may affect reception.
  • Changes in cloud cover and other atmospheric conditions will affect the ability of the audio system to receive radio signals.
  1. Park the customer's vehicle in an open area away from buildings or other obstructions.
  2. Park a known-good vehicle (same year, model, and trim level) next to the customer's vehicle, facing the same direction.
  3. Start the engine in the customer's vehicle, and turn on the radio.
  4. Set the FM receiver to 87.7 MHz.
  5. Press the Seek + button, and record the first station that the audio unit or audio-navigation unit locks onto.
  6. Press the Seek + button repeatedly, and write down each station that the audio unit or audio-navigation unit locks onto until the station recorded in step  5 is reached again.
  7. Set the AM receiver to 530 kHz.
  8. Press the Seek + button, and record the first station that the audio unit locks onto.
  9. Press the Seek + button repeatedly, and write down each station that the audio unit or audio-navigation unit locks onto until the station recorded in step  8 is reached again.
  10. Turn the ignition switch to LOCK (0).
  11. Start the engine in the known-good vehicle, and then do steps  4 thru  10 on the known-good vehicle.
  12. Compare the number of stations received in steps  6 and  9 in the customer's vehicle with the number of stations received in the known-good vehicle.
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