Circuit/System Testing

Chime Always On

1. Ignition ON, headlamp switch OFF, verify the scan tool Headlamp 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 Inactive.
   • If not Inactive, refer to Park, License, and/or Tail Lamps Malfunction .
3. Ignition ON, close all doors, verify the scan tool Door Ajar Switch parameters are Door Closed.
   • If not Door Closed, refer to Courtesy Lamps Malfunction .
4. Ignition OFF, key out of the ignition, verify the scan tool Key In Ignition Status parameter is Key Out.
   • If not Key Out, test the key-in-ignition switch signal circuit terminal 1 for an open or short to voltage. If the circuit tests normal, replace the ignition switch.
5. If all circuits test normal, replace the BCM.

Chime Inoperative

1. Ignition OFF, with key in the ignition, open the driver door. The courtesy lamps should illuminate.
   • If the courtesy lamps do not illuminate, refer to Courtesy Lamps Malfunction .
2. Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.
   • If the speaker does not operate properly, refer to Speakers Inoperative - One or More .
3. If the speaker operates properly, replace the radio.