GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the radio for correct operation.

Does the radio turn ON and OFF?

--

Go to Step 3

Go to Step 2

2

  1. Service the radio. Refer to Radio Replacement .
  2. Inspect the system.

Has the repair been made?

--

Go to Radio/Audio System Check

--

3

  1. Turn the ignition to the OFF position.
  2. Remove the MALL/RADIO/DIC fuse and the RADIO fuse for 1  minute.
  3. Reinstall the fuses.
  4. Turn the ignition to the RUN position.
  5. Turn on the radio.

Does the radio display LOC?

--

Go to Step 2

Go to Radio/Audio System Check