GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Audible Warnings Schematics

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Do any indicators illuminate when the chime sounds?

Go to Symptoms - Instrument Panel, Gages and Console

Go to Step 3

3

  1. Turn the ignition OFF.
  2. Remove the key from the ignition.
  3. Turn the headlamp switch to OFF.
  4. Close all of the vehicle doors.
  5. Open one or more of the vehicle doors.

Does the chime sound at all times regardless if the doors are open or closed?

Go to Step 16

Go to Step 4

4

  1. Close all of the vehicle doors.
  2. With a scan tool observe the LF Door Ajar Switch and the RF Door Ajar Switch parameters in the body control module (BCM) Inputs Data List.

Do all of the Door Ajar Switch parameters display Door Closed?

Go to Step 5

Go to Courtesy Lamps Always On in Lighting Systems

5

With a scan tool observe the Left Rear Door Ajar Switch and the Right Rear Door Ajar Switch parameters in the BCM inputs data list.

Do all of the Door Ajar Switch parameters display Closed?

Go to Step 6

Go to Courtesy Lamps Always On in Lighting Systems

6

With a scan tool, observe the Trunk Open Switch parameter in the BCM inputs data list.

Does the Trunk Open Switch parameter display Closed?

Go to Step 7

Go to Courtesy Lamps Always On in Lighting Systems

7

  1. Turn the ignition OFF.
  2. Remove the key from the ignition.
  3. Turn the headlamp switch to OFF.
  4. Open the driver door.

Does the chime sound?

Go to Step 8

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

8

  1. Install a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. With a scan tool, observe the Park Lamp Switch parameter in the BCM inputs data list.

Does the Park Lamp Switch parameter display Off?

Go to Step 9

Go to Step 11

9

With a scan tool, observe the Headlamp Off Switch parameter in the BCM inputs data list.

Does the Headlamp Switch parameter display Inactive?

Go to Step 10

Go to Step 11

10

  1. Turn the ignition OFF.
  2. Remove the key from the ignition.
  3. With a scan tool, observe the Key In Ignition parameter in the BCM inputs data list.

Does the Key In Ignition parameter display Inactive?

Go to Step 15

Go to Step 12

11

Test the headlamp input signal circuit and the park lamp signal circuit at the BCM for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 13

12

Test the key in ignition signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 14

13

Inspect for poor connections at the harness connector of the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 17

14

Inspect for poor connections at the harness connector of the ignition switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 18

15

Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 19

16

Inspect for poor connections at the harness connector of the radio or audio amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 21

Go to Step 20

17

Replace the headlamp switch. Refer to Headlamp Switch Replacement in Lighting Systems.

Did you complete the replacement?

Go to Step 21

--

18

Replace the ignition switch. Refer to Ignition Lock Cylinder Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 21

--

19

Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 21

--

20

Replace the radio. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 21

--

21

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3