GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Entertainment

2

  1. Set the clock and the preset stations on the radio.
  2. Turn the ignition to the OFF position.
  3. Turn the ignition back to the RUN position.
  4. Observe the clock and the preset stations.

Do the clock and the preset stations remain where they were set?

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

Go to Step 3

3

Connect a test lamp between the radio harness connector C1 terminal 10 and ground. Refer to Circuit Testing in Wiring Systems.

Does the test lamp illuminate?

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Go to Step 4

Go to Step 5

4

Replace the radio. Refer to Radio Replacement .

Did you complete the repair?

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Go to Step 6

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5

Repair a poor connection or an open in the battery voltage circuit of the radio. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3