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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 227 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Auxiliary Audio Input Malfunction >> Circuit/System Testing >> USB Port without KTA

USB Port without KTA

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X301 I/P to floor console harness connector.
    2. NOTE: A USB Type A female to female adaptor (gender changer) may be required for the following test.
  2. Ignition ON, radio ON, connect a device to the USB connection of the I/P side of the X301 harness connector. Verify the infotainment system to switches USB as the audio source.
    • If the infotainment system does not switch to USB as the audio source, ensure the USB cable is properly connected at the radio. If the cable connection checks OK, replace the I/P USB cable assembly and reconnect the USB device. If the infotainment system still does not switch to USB as the audio source, replace the A11 radio.
  3. Ignition OFF, reconnect the X301 I/P to floor console harness connector.
  4. Ignition ON, radio ON, connect a device to the console USB port. Verify the infotainment system to switches USB as the audio source.
    • If the infotainment system does not switch to USB as the audio source, ensure the USB cable is properly connected at the X92 USB receptacle. If the cable connection checks OK, replace the X92 USB receptacle and reconnect the USB device. If the infotainment system still does not switch to USB as the audio source, replace the console USB cable assembly.
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