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Home >> Chevrolet >> 2007 >> Optra LT, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular, Entertainment, And Navigation >> Diagnostic Information and Procedures >> Audio Distortion - One or More Speakers (Rear)

Audio Distortion - One or More Speakers (Rear)

Step Action Values Yes No
1
  1. Turn the ignition and the radio on.
  2. Inspect for distorted or inoperative rear speakers using the fader and the balance controls with all the of the sources (AM, FM, tape, CD).
Are the rear speakers distorted?		 - Go to Step 2  Go to Step 4 
2 Inspect the speakers, the rear deck, and the trunk area for damage, rattles, or vibration.
Is there anything loose or in the way of the speaker causing the distortion?		 - Go to Step 3  Go to Step 4 
3 Make the necessary repairs to secure the component causing the distortion.
Did you complete the repair?		 - System OK -
4
  1. Disconnect the rear speakers.
  2. Using an ohmmeter, test the speaker wires for a short to ground.
Does the ohmmeter indicate the specified value?		 ∞ Go to Step 6  Go to Step 5 
5 Repair the short circuit between the rear speaker connector and the radio connector.
Did you complete the repair?		 - System OK -
6 Substitute a known good speaker for the speaker causing the distortion.
Is the distortion eliminated?		 - Go to Step 7  Go to Step 8 
7 Replace the speaker.
Did you complete the replacement?		 - System OK -
8 Replace the audio system.
Did you complete the replacement?		 - System OK -
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