GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Audible Warning System Check?

--

Go to Step 2

Go to Audible Warnings System Check

2

  1. Place the ignition switch in the OFF or the LOCK position.
  2. Unfasten the left hand (LH) safety belt.

Is the fasten safety belts warning alarm present?

--

Go to Step 6

Go to Step 3

3

Fasten the LH safety belt.

Is the fasten safety belts warning alarm present?

--

Go to Step 4

Go to Step 5

4

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

Is the repair complete?

--

Go to Audible Warnings System Check

--

5

Place the ignition switch in the RUN position.

Is the fasten safety belts warning alarm present?

Go to Step 9

Go to Audible Warnings System Check

6

  1. Remove the audio alarm module from the convenience center.
  2. Connect a voltmeter from the convenience center cavity K4 to ground.

Is there battery voltage?

--

Go to Step 7

Go to Step 8

7

Repair the short to voltage in CKT 39 (PNK) between the instrument panel fuse block and the convenience center.

Is the repair complete?

--

Go to Audible Warnings System Check

--

8

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

Is the repair complete?

--

Go to Audible Warnings System Check

--

9

  1. Remove the audio alarm module from the convenience center.
  2. Use an ohmmeter in order to test for continuity from the convenience center cavity K1 to ground.

Is there continuity?

--

Go to Step 11

Go to Step 10

10

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

Is the repair complete?

--

Go to Audible Warnings System Check

--

11

  1. Disconnect the safety belt retractor switch connector.
  2. Disconnect the connector at the inflatable restraint sensing diagnostic module.
  3. Use an ohmmeter in order to test for continuity from the convenience center cavity K1 to ground.

Is there continuity?

--

Go to Step 12

Go to Step 13

12

Repair the short to ground in CKT 238 (BLK/WHT) between the following components:

    • The convenience center
    • The inflatable restrains sensing diagnostic module
    • The safety belt retractor switch

Is the repair complete?

--

Go to Audible Warnings System Check

--

13

  1. Reconnect the inflatable restrains sensing diagnostic module.
  2. Use an ohmmeter in order to test for continuity from the convenience center cavity K1 to ground.

Is there continuity?

--

Go to Step 14

Go to Step 15

14

  1. Test the inflatable restraint sensing diagnostic module. Refer to SIR in Restraints.
  2. Replace the inflatable restraint sensing diagnostic module if needed. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement in Restraints.

Is the repair complete?

--

Go to Audible Warnings System Check

--

15

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

Is the repair complete?

--

Go to Audible Warnings System Check

--