GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Audible Warnings System Check?

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Go to Step 2

Go to Audible Warnings System Check

2

  1. Disconnect the audio alarm module connector.
  2. Turn the ignition switch to ON.
  3. Connect a test lamp from the audio alarm module connector cavity 7 to B+.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Use a test lamp in order to backprobe the junction block connector C4 from cavity 16 to B+.

Does the test lamp light?

--

Go to Step 6

Go to Step 5

4

With the audio alarm module still disconnected and the ignition switch turned to ON.

Connect a test lamp from cavity 5 of the audio alarm module to ground.

Does the test lamp light?

--

Go to Step 8

Go to Step 7

5

  1. Inspect for a poor ground connection at the junction block.
  2. If the connection is OK, replace the junction block.

Is the repair complete?

--

Go to Audible Warnings System Check

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6

Repair the open in the BLK wire between the junction block and the audio alarm module. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Audible Warnings System Check

--

7

Repair the open BLK/WHT wire between cavity 5 of the audio alarm module connector and junction block Connector C4 cavity 3. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Audible Warnings System Check

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8

Replace the audio alarm module. Refer to Audio Alarm Module Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Audible Warnings System Check

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