GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Century (China) (CNG) 🢒 Body and Accessories 🢒 Body Control System 🢒 Fasten Safety Belt Chime Always On

Step

Action

Value(s)

Yes

No

The BCM does not sound the key in the ignition reminder when the driver's door is open, the key is fully inserted in the ignition switch cylinder, and the ignition switch is in the OFF or the UNLOCK position.

1

Was the Audible Warning System Check performed?

--

Go to Step 2

Go to Audible Warnings System Check

2
  1. Connect a Tech 2 scan tool to the data Link Connector (DLC).
  2. Use the Tech 2 scan tool in order to monitor the key in the switch input.
  3. Fasten and release the driver's seat belt while observing the Tech 2 scan tool.
  4. Close all of the vehicle doors.

Does the Tech 2 scan tool indicate the seat belt input is inactive with the driver's seat belt unfastened?

--

Go to Step 3

Go to Step 4

3
  1. Turn the ignition to the LOCK position.
  2. Ensure that the driver's seat belt is unfastened.
  3. Turn the ignition switch to the RUN position while performing the following steps:
    4. • Observing the fasten belts indicator
    • Listening to the chime

Did the fasten seat belt chime sound for 4-8 seconds and the indicator light turns on for 63-77 seconds?

--

Go to Step 6

Go to Step 7

4
  1. Disconnect the BCM connector C1.
  2. Fasten the driver's seat belt.
  3. Use a DMM to measure resistance between the BCM connector C1 terminal C11 and ground.

Is the resistance within the specified range?

∞

Go to Step 7

Go to Step 5

5
  1. Leave the DMM connected.

  2. Disconnect the driver's seat belt switch electrical connector.

  3. Measure the resistance again.

Is the resistance within the specified range?

∞

Go to Step 8

Go to Step 9

6

A malfunction is not present at this time. Refer to Audible Warnings Circuit Description for more information.

Is the action complete?

--

Go to Step 10

--

7
  1. Replace the BCM. Refer to Body Control Module Replacement in Body Control System.
  2. Perform the Setup New BCM procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Has the repair been made?

--

Go to Step 10

--

8

Replace the driver's seat buckle. Refer to Seat Belt Buckle Replacement - Left Front in Seat Belts.

Has the repair been made?

--

Go to Step 10

--

9

Repair the short to ground in circuit 238.

Has the repair been made?

--

Go to Step 10

--

10
  1. Turn the ignition to the LOCK position.
  2. Reconnect/reinstall the connectors/components removed.

Have all the repairs been made?

--

Go to Audible Warnings System Check

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