GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Audible Warnings Schematics

Connector End View Reference: Body Control System Connector End Views or to Inline Harness Connector End Views

1

Did you perform the Audible Warnings Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Audible Warnings

2

Are any indicators illuminated?

Go to Symptoms - Instrument Panel, Gages and Console

Go to Step 3

3

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

Does the chime sound?

Go to Step 4

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

4

  1. Turn the ignition OFF.
  2. Disconnect the ignition switch.
  3. Install a scan tool.
  4. Turn the ignition ON, with the engine OFF.
  5. With a scan tool, observe the Key in Ignition parameter in the Dash Integration Module Data list.

Does the Key in Ignition parameter display No?

Go to Step 6

Go to Step 5

5

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

Did you find and correct the condition?

Go to Step 10

Go to Step 7

6

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

Did you find and correct the condition?

Go to Step 10

Go to Step 8

7

Inspect for poor connections at the harness connector of the Dash Integration Module (DIM). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 9

8

Replace the ignition switch. Refer to Ignition and Start Switch Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 10

--

9

Important: Program the replacement DIM.

Replace the DIM. Refer to Dash Integration Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 10

--

10

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2