GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the BCM Diagnostic System Check performed?

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Go to Step 2

Go to Diagnostic System Check - Body Control System in Body Control System

2

Did you review the audible warnings system operation and perform the necessary inspections?

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Go to Step 3

Go to Audible Warnings Circuit Description

3

Verify that the fasten safety belt chime is always on.

Does the chime operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 4

4

Disconnect the seat belt switch connector.

Does the seat belt alarm stop sounding?

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Go to Step 5

Go to Step 6

5

Replace the seat belt switch. Refer to Front Seat Belt Buckle Replacement in Seat Belts.

Is the repair complete?

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Go to Step 7

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6

  1. Locate and repair the short to ground in CKT 238 (BLK/WHT) between the seat belt switch and the BCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
  2. If there is no short to ground, replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 4