GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Vivant 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 Audio Distortion - One or More Speakers

Audio Distortion - One or More Speakers Front

Step

Action

Values

Yes

No

1
  1. Turn the ignition and the radio ON.
  2. Test for distorted or inoperative front speakers using the fader and the balance controls with all of the sources: AM, FM, tape, and CD.

Are the front speakers distorted?

--

Go to Step 2

Go to Step 4

2

Inspect the speaker and the door 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.

Is the repair complete?

--

System OK

--

4
  1. Remove the front speakers and disconnect the speaker connector.
  2. Using an ohmmeter, test the speaker wires for a short to ground.

Does the ohmmeter show the specified value?

∞

Go to Step 6

Go to Step 5

5

Repair the short circuit between the front speaker connector and the radio connector.

Is the repair complete?

--

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. Refer to Radio Front Side Door Speaker Replacement .

Is the repair complete?

--

System OK

--

8

Replace the radio. Refer to Radio Replacement .

Is the repair complete?

--

System OK

--

Audio Distortion - One or More Speakers Rear

Step

Action

Values

Yes

No

1
  1. Turn ON the ignition and the radio.
  2. Test for distorted or inoperative rear speakers using the fader and the balance controls with all the of the sources: AM, FM, tape, and 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.

Is the repair complete?

--

System OK

--

4
  1. Disconnect the rear speakers.
  2. Using an ohmmeter, test the speaker wires for a short to ground.

Does the ohmmeter show 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.

Is the repair complete?

--

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. Refer to Radio Rear Speaker Replacement .

Is the repair complete?

--

System OK

--

8

Replace the radio. Refer to Radio Replacement .

Is the repair complete?

--

System OK

--