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HOMESERVICE MANUALSCHEVROLET2013SILVERADO 2500 HD LT, 2D CAB CHASSIS, 6.6L ENG VIN 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2170 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESAUXILIARY AUDIO INPUT MALFUNCTIONCIRCUIT/SYSTEM TESTING
2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWD

Circuit/System Testing

2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWDSECTION Circuit/System Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Instrument Panel USB Port

  1. Ignition OFF, disconnect the USB cable connection at the A11 radio.
    2. NOTE:

    USB cables and adapters for the following tests are found in the EL-50334-50  USB Cable and Adapter Kit.

  2. Connect the EL-50334-2 Type A female to Mini B male USB Cable to the A11 radio.
  3. 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.
  4. Ignition OFF, reconnect the vehicle USB cable to the A11 radio.
  5. Disconnect the USB cable at the USB receptacle.
  6. Connect the EL-50334-4 Type A female to Mini B female adapter to the USB cable.
  7. 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.
  8. If all circuits test normal, replace the USB receptacle.

Console USB Port

  1. Ignition OFF, disconnect the USB cable connection at the A11 radio.
    2. NOTE:

    USB cables and adapters for the following tests are found in the EL-50334-50  USB Cable and Adapter Kit.

  2. Connect the EL-50334-1 Type A male to Mini A male USB Cable to the A11 radio.
  3. Connect the EL-50334-3 Type A female to Type A female adapter to the EL-50334-1 Cable.
  4. Ignition ON, radio ON, connect a USB device to the EL-50334-3 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 A11 radio.
  5. Ignition OFF, reconnect the vehicle USB cable to the A11 radio.
  6. Disconnect the X265 I/P to floor console harness USB connector.
    7. NOTE:

    The EL-50334-3 Type A female to Type A female adapter may be required for the following test.

  7. Ignition ON, radio ON, connect a USB device to the I/P side of the X265 connector. 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 I/P USB cable assembly.
  8. Ignition OFF, reconnect the X265 harness connector.
  9. Disconnect the USB cable at the USB receptacle.
  10. Connect the EL-50334-4 Type A female to Mini B female adapter to the USB cable.
  11. 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 console USB cable assembly.
  12. If all circuits test normal, replace the USB receptacle.
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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.