Chime Inoperative

CHIME INOPERATIVE




DIAGNOSTIC FAULT INFORMATION

IMPORTANT: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Testing and Inspection

CIRCUIT/SYSTEM DESCRIPTION
The body control module (BCM) monitors the key in ignition switch. When the key is in the ignition, the key in ignition switch is closed with the signal circuit low. When the key is not in the ignition, the key in ignition switch is open with the signal circuit high. The key in ignition signal circuit is grounded when you fully insert the ignition key into the ignition switch. This in turn pulls the BCM key-in-ignition input low.

CIRCUIT/SYSTEM TESTING
1. With the ignition ON, make sure no indicator(s) are illuminated in the instrument panel cluster (IPC) and perform the indicator diagnostic first if any indicator(s) are illuminated before performing the following diagnostics.
2. Open the driver door.
3. With the ignition ON install a scan tool and observe the Driver Door Ajar Switch parameter in the BCM Doors Data List.
- If the scan tool does not display Door Ajar, refer to Symptoms - Doors. - Symptoms - Doors
4. Turn the parklamp switch ON and observe the Parklamp Switch parameter in the BCM Exterior Lights Data List.
- If the scan tool displays OFF, refer to Park, License, and Tail Lamps Inoperative. Park, License, and Tail Lamps Inoperative
5. Turn ON the radio and adjust the radio balance and fade to the left front speaker.
- If the radio speakers are not operating properly, refer to Speakers Inoperative - One or More. Speakers Inoperative - One or More
6. Turn the ignition OFF, with the key still in the ignition key cylinder.
7. Open the driver door.
8. Turn on the parklamp and the headlamp.
- If the chime does not sound, check the key-in-ignition signal circuit for an open, a high resistance or a short to voltage.
- If the key-in-ignition signal circuit test normal, check the key-in-ignition ground circuit for an open or a high resistance.
- If the key-in-ignition ground circuit tests normal, replace the key-in-ignition switch.

REPAIR INSTRUCTIONS

IMPORTANT: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

- Ignition Switch Replacement
- Control Module References for the radio replacement, setup, and programming