GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Schematic Reference: Radio/Audio System Schematics

1

Did you review the Radio/Audio System Description and Operation and perform the necessary inspections?

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Go to Step 2

Go to Radio/Audio System Description and Radio/Audio System Operation

2

  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the radio.
  3. Operate the radio in order to verify the descrepancy.

Does the radio operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Clean the tape head path using the J39916-A kit.
  2. Reset the display by pushing and holding the eject button for 5 seconds.

Does the radio display CLN?

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Go to Step 4

Go to Step 5

4

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

Did you complete the replacement?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3