Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISELECTRICALGAUGESINSTRUMENT PANEL SYSTEM DISPLAYS & GAGESDIAGNOSTIC INFORMATION AND PROCEDURESCHIME MALFUNCTIONCIRCUIT/SYSTEM TESTING
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Circuit/System Testing
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Circuit/System Testing
IMPORTANT:
Before performing this diagnostics, make sure no indicators are illuminated after the IPC performs a lamp test. If any indicators are illuminated after the bulb test, perform the indicator diagnostics before this diagnostics.
Chime Always On
- Ignition ON, headlamp switch OFF, verify the scan tool Headlamp Switch parameter is Inactive.
- If not Inactive, refer to Headlamps Malfunction .
- Ignition ON, park lamp switch OFF, verify the scan tool Park Lamps Switch parameter is Inactive.
- If not Inactive refer to Park, License, and/or Tail Lamps Malfunction .
- Ignition ON, doors closed, verify that all of the door ajar switch parameters are Door Closed.
- If not Door Closed, refer to Courtesy Lamps Malfunction .
- 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 for a short to ground.
- If the circuits tests normal, replace the ignition switch.
Chime Inoperative
- Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.
- If the speaker does not operate properly, refer to Speaker Malfunction .
- Ignition ON, verify that the scan tool Key In Ignition Status parameter is Key In.
- If not Key In, test the signal circuit and ground for a short to voltage or an open/high resistance. If all circuits test normal, replace the ignition switch.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.