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Home >> Chevrolet >> 2016 >> Spark LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Cellular System, Entertainment System And Navigation System) >> Diagnostic Information and Procedures >> Auxiliary Audio Input Malfunction >> Circuit/System Testing >> USB Port
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USB Port

WARNING: This page is about a different car, the 2015 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the USB cable connection at the A11 Radio.
  2. Connect the EL-50334-2 Type A female to Mini B male USB Cable to the A11 Radio.
    NOTE: USB cables and adapters for the following tests are found in the EL-50334-50  USB Cable and Adapter Kit.
  3. Connect the EL-50334-20  Multimedia Interface Tester (MIT) to the EL-50334-2 cable. Ignition ON, radio ON
  4. 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.

    • If the infotainment system switches to USB as the audio source 
  5. Ignition OFF, connect the vehicle USB cable to the A11 Radio. Disconnect the USB cable at the X83 Auxiliary Audio Input.
  6. Connect the EL-50334-20  Multimedia Interface Tester (MIT) to the vehicle USB cable. Ignition ON, radio ON.
    NOTE: The EL-50334-4 adapter may be required for the following test.
  7. 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 the infotainment system switches to USB as the audio source 
  8. Test or replace the X83 Auxiliary Audio Input.