Circuit/System Verification

IMPORTANT: Before performing this diagnostics, make sure no indicator(s) are illuminated after the IPC performs the displays test. If any indicators are illuminated after the bulb test, perform the indicator diagnostics before this diagnostic.

Ignition ON, headlamp switch OFF, verify the scan tool Headlamp Switch ON parameter is Inactive.
- If not Inactive, refer to Headlamps Malfunction .
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 .
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 .
Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.
- If the speaker does not operate properly, refer to Radio Front Side Door Speaker Replacement .
Verify that the Ign. Off/Run/Crank parameter is Active when the key is in the ignition and Inactive when the key is out of the ignition.