GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Audible Warnings System Check performed?

--

Go to Step 2

Go to Audible Warnings System Check

2

  1. Place the ignition switch in the RUN position.
  2. Disconnect the connector at the multi-function alarm module.
  3. Disconnect the connector at the instrument cluster.
  4. Connect an unpowered test lamp between the multi-function alarm module connector, cavity C2 for CKT 234 (YEL), and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage in CKT 234 (YEL) between the multi-function alarm module and the instrument cluster.

Does the fasten safety belt indicator remain illuminated?

--

Go to Step 4

Go to Audible Warnings System Check

4

  1. Reconnect the connector at the multi-function alarm module.
  2. Connect an unpowered test lamp between the instrument cluster connector, cavity A12 for CKT 234 (YEL), and ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5

Replace the multi-function alarm module.

Does the fasten safety belt indicator remain illuminated?

--

Go to Step 6

Go to Audible Warnings System Check

6

Replace the instrument cluster.

Does the fasten safety belt indicator remain illuminated?

--

Go to Audible Warnings System Check

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