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 MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR, ENTERTAINMENT, AND NAVIGATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESAUXILIARY AUDIO INPUT MALFUNCTIONCIRCUIT/SYSTEM TESTING
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
Circuit/System Testing
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION Circuit/System Testing
USB Port
- Ignition OFF, disconnect the USB cable connection at the A11 radio.
- Connect the EL - 50334 - 2 Type A female to Mini B male USB Cable to the A11 radio.
- Ignition ON, radio ON, connect a USB device to the EL - 50334 - 2 cable. Verify the infotainment system switches to USB as the audio source.
- If the infotainment system does not switch to USB as the audio source, replace the A11 radio.
- Ignition OFF, reconnect the vehicle USB cable to the A11 radio.
- Disconnect the USB cable at the USB receptacle.
- Connect the EL - 50334 - 4 Type A female to Mini B female adapter to the USB cable.
- Ignition ON, radio ON, connect a USB device to the EL - 50334 - 4 adapter. Verify the infotainment system switches to USB as the audio source.
- If the infotainment system does not switch to USB as the audio source, replace the USB cable assembly.
- If all circuits test normal, replace the USB receptacle.
NOTE:
USB cables and adapters for the following tests are found in the EL-50334-50 USB cable and adapter kit.
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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.