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Circuit/System Testing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 GMC Savana Special, 2011 GMC Savana Camper Special, 2011 GMC Savana, 2011 Chevrolet RV Cutaway, and 2011 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

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   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.
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