GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value

Yes

No

1

Did you perform the Audible Warning System Check?

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Go to Step 2

Go to Audible Warnings System Check

2

  1. Unbuckle the left side seat belt.
  2. Turn the ignition switch to the ON position.
  3. Using a test lamp, backprobe connector C3 of the instrument cluster assembly from cavity 11 to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

The left side seat belt is unfastened. The ignition switch is in the ON position.

Back probe cavity 12 of the IP cluster assembly connector C3 to ground with a test lamp.

Does the test lamp light?

--

Go to Step 5

Go to Step 7

4

Repair the BLK/WHT wire between S242 and the instrument panel cluster assembly. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Audible Warnings System Check

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5

The seat belt is unfastened.

Test for an open between the seat belt switch cavity 2 and ground.

Is there continuity?

--

Go to Step 9

Go to Step 6

6

Replace the seat belt buckle. Refer to Seat Belt Retractor Replacement - Left Front in Seat Belts.

Is the repair complete?

--

Go to Audible Warnings System Check

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7

Test the seat belt indicator bulb.

Is the bulb working correctly?

--

Go to Step 8

Go to Step 10

8

Replace the instrument panel cluster assembly. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Audible Warnings System Check

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9

Repair the GRY/RED wire between cavity 2 of the seat belt switch and Connector C3 cavity 12 of the instrument panel cluster assembly. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Audible Warnings System Check

--

10

Replace the seat belt indicator bulb. Refer to Instrument Cluster Bulb Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Audible Warnings System Check

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