For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Audible Warnings Schematics
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 Body Control Module Switch Inputs data list.

Does the Key in Ignition parameter display No?

Go to Step 6

Go to Step 5

5 | Test the key in ignition 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 8 | Go to Step 7
6 | Replace the ignition switch. Refer to Ignition and Start Switch Replacement in Steering Wheel and Column. Did you complete the replacement? | Go to Step 8 | --
7 | Important: Program the replacement BCM. Replace the BCM. Refer to Body Control Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 8 | --
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2