The radio generates the audible warning through the left speaker. The radio receives audible warning requests via the serial data circuit from the instrument panel cluster (IPC) or the body control module (BCM).

Schematic Reference

Connector End View Reference

Electrical Information Reference

Scan Tool Reference

Scan Tool Data List

Important: Before performing this diagnostics, make sure no indicators or driver information center (DIC) messages are illuminated after the IPC performs the displays test. If any indicators or DIC messages are illuminated after the displays test, perform the indicator or DIC message diagnostics before this diagnostic.

1. Ignition ON, headlamp switch OFF, verify the scan tool Headlamp On Switch parameter is Inactive.

⇒	If not Inactive, refer to Headlamps Malfunction .

2. Ignition ON, park lamp switch OFF, verify the scan tool Park Lamp Switch parameter is OFF.

⇒	If not OFF, refer to Park, License, and/or Tail Lamps Malfunction .

3. Ignition ON, doors closed, verify the scan tool LF Door Open Switch RF Door Open Switch parameters is Closed.

⇒	If not Closed, refer to Courtesy Lamps Malfunction .

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.