GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Disconnect the audio alarm module.

Does the fasten safety belts indicator go out?

--

Go to Step 2

Go to Step 3

2

Replace the audio alarm module.

Does the indicator lamp go out?

--

System OK

--

3

Repair the short to ground in CKT 529 (DK GRN/WHT) between terminal 8 in the driver information center harness connector and terminal C2 in the audio alarm mode harness connector.

Does the indicator go out?

--

System OK

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