GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Audible Warnings Schematics

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

  1. Turn OFF the ignition, with the key in the ignition.
  2. Open the driver door.

Does the chime sound?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Do the courtesy lights turn ON when you open the driver door?

Go to Step 4

Go to Courtesy Lamps Inoperative

4

  1. Turn ON the ignition, with the engine OFF.
  2. Turn the radio ON.
  3. Adjust the radio balance and fade to the driver front speaker.

Does the speaker operate properly?

Go to Step 5

Go to Speakers Inoperative - One or More

5

Replace the radio. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2