GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Does the radio turn ON and OFF?

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Go to Step 2

Go to Step 3

2

  1. Turn the ignition switch to the OFF position.
  2. Remove Fuse 10 for 1 minute.
  3. Reinstall the fuses.
  4. Turn the ignition switch to the RUN position.
  5. Turn the radio ON.

Does the radio display LOC?

--

Go to Step 3

System OK

3

Service the radio. Refer to Radio Replacement for service procedure.

Is the repair complete?

--

Go to Radio/Audio System Check

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