GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the radio/audio system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

Verify that the radio displays CLN.

Does the radio display CLN?

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Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3

The CLN indicator is only a reminder that appears after 50 hours of accumulated cassette tape player operation.

  1. Clean the tape head.
  2. Clean the tape path.
  3. Reset the display by pushing and holding the eject button for 5 seconds.

Does the display clear and start a new cycle?

--

Go to Step 5

Go to Step 4

4

Service the radio. Refer to Radio Replacement .

Is service of the radio complete?

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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