GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: The fasten safety belt chime does not sound when the driver's seat belt is unbuckled and the ignition switch is turned to RUN.

1

Did you review the Audible Warning circuit description and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Audible Warnings

2

  1. Unbuckle the driver's seat belt.
  2. Turn the ignition switch to RUN.
  3. Listen for the fasten safety belt chime.

Does the fasten safety belt chime sound?

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Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Unbuckle the driver's seat belt.
  2. Disconnect the seat belt switch.
  3. Connect a J 39200 DMM between seat belt switch pigtail pin A and pigtail pin B. Refer to Circuit Testing in Wiring Systems.

Is continuity present?

--

Go to Step 4

Go to Step 8

4

Connect a J 39200 DMM between seat belt switch connector cavity B for CKT 150 (BLK) and ground. Refer to Circuit Testing in Wiring Systems.

Is continuity present?

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Go to Step 5

Go to Step 6

5

  1. Disconnect multi-function alarm module connector C1.
  2. Connect a J 39200 DMM between multi-function alarm module connector C1 cavity A2 and seat belt switch connector cavity A for CKT 238 (BLK/WHT). Refer to Circuit Testing in Wiring Systems.

Is continuity present?

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Go to Step 9

Go to Step 7

6

Repair the open in CKT 150 (BLK) between the seat belt switch and splice S201. Refer to Wiring Repairs in Wiring Systems.

Is the fasten safety belt chime operative?

--

Go to Step 10

Go to Step 3

7

Repair the open in CKT 238 (BLK/WHT) between the multi-function alarm module and the seat belt switch. Refer to Wiring Repairs in Wiring Systems.

Is the fasten safety belt chime operative?

--

Go to Step 10

Go to Step 3

8

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

Is the fasten safety belt chime operative?

--

Go to Step 10

Go to Step 3

9

Replace the multi-function alarm module. Refer to Multifunction Alarm Module Replacement .

Is the fasten safety belt chime operative?

--

Go to Step 10

Go to Step 3

10

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3