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 the Audible Warnings System Check

2

  1. Disconnect the drivers seat belt switch.
  2. Connect a fused jumper wire from the seat belt switch connector cavity 2 to ground.

Does the seat belt chime come on?

--

Go to Step 3

Go to Step 6

3

  1. Buckle the left front seat belt.
  2. Using a J 39200 DMM, test the seat belt switch for continuity.

Is continuity present?

--

Go to Step 4

Go to Step 5

4

Repair the open in the BLK wire between the seat belt switch connector cavity 1 and SP451. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to the Audible Warnings System Check

--

5

Replace the seat belt switch. Refer to Seat Belt Retractor Replacement - Left Front in Restraints.

Is the repair complete?

--

Go to the Audible Warnings System Check

--

6

  1. Disconnect the fused jumper wire.
  2. Disconnect the multifunction alarm module connector.
  3. Using a test lamp, backprobe the multifunction alarm module C2 cavity 5 to ground.

Does the test lamp illuminate?

--

Go to Step 7

Go to Step 8

7

Repair the open in the wire between the seat belt switch connector cavity 2 and the multifunction alarm module C2 cavity 5. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to the Audible Warnings System Check

--

8

Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement .

Is the repair complete?

--

Go to the Audible Warnings System Check

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