GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Audible Warnings Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Audible Warnings

2

  1. Connect a scan tool.
  2. Turn the ignition switch to the ON position.
  3. Establish communication with the Inflatible Restraint Sensing and Diagnostic Module.
  4. Connect and disconnect LH front seat belt to LH front seat belt buckle.

Does the seat belt switch input toggle between ON and OFF?

--

Go to Step 3

Go to Step 4

3

Perform the Radio/Audio System Diagnostic System Check.

Is the inspection complete?

--

Go to Step 5

Go to Intermittents and Poor Connections

4

Disconnect the LH front seat belt switch.

Did the chime turn off?

--

Go to Step 6

Go to Step 7

5

Was a fault found in the Radio/Audio Diagnostic System Check?

--

Go to applicable diagnostic table

Go to Step 8

6

Replace the LH front seat belt Buckle.

Is the replacement complete?

--

Go to Diagnostic System Check - Audible Warnings

--

7

Repair short to ground on CKT 238 (Blk/WHT).

Is the repair complete?

--

Go to Diagnostic System Check - Audible Warnings

--

8

Replace the Inflatible Restraint Sensing and Diagnostic Module.

Is the replacement complete?

--

Go to Diagnostic System Check - Audible Warnings

--