GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Radio/Audio System Diagnostic System Check?

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Go to Step  2

Go to Diagnostic System Check - Radio/Audio System

2

  1. Turn the ignition switch to the RUN position.
  2. Turn ON the radio.
  3. Adjust the FADE and BALANCE to the inoperative speaker.
  4. Measure the A/C voltage between the inoperative speaker connector terminal A and terminal B (speaker connected).

Is A/C voltage measured?

--

Go to Step  3

Go to Step  4

3

Replace the speaker. Refer to one of the flowing:

Did you complete the repair?

--

Go to Diagnostic System Check - Radio/Audio System

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4

Test the speaker circuits for an open or a short to ground.

Was an open or short found?

--

Go to Step  5

Go to Step  6

5

Repair the open or the short to ground in the speaker circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Diagnostic System Check - Radio/Audio System

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6

Replace the radio. Refer to one of the flowing:

    •  Radio Replacement
    •  Radio Replacement

Did you complete the repair?

--

Go to Diagnostic System Check - Radio/Audio System

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