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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Cellular System, Entertainment System And Navigation System) >> Diagnostic Information and Procedures >> Auxiliary Audio Input Malfunction (with IO5/IO6) >> Circuit/System Verification >> USB Ports and SD Card Reader
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USB Ports and SD Card Reader

WARNING: This page is about a different car, the 2015 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, infotainment system ON.
  2. Connect the EL-50334-20 Multimedia Interface Tester (MIT) to the X83 Auxiliary Audio Input USB port and select the USB test mode.
  3. Verify the audio from the EL-50334-20 Multimedia Interface Tester (MIT) is heard through the infotainment system while operating the system to play audio from the test tool.
    • If audio is not heard from the test tool 
    1. Insert an SD card with compatible media into the SD card slot.
    2. Verify the media on the SD card can be accessed while operating the system to connect to the SD card.
    • If the SD card reader cannot be accessed, refer to Circuit/System Testing - USB Port and SD Card Reader.
    • If the SD card reader can be accessed, replace the X83 Auxiliary Audio Input.
    • If audio is heard from the test tool 
  4. Insert an SD card with compatible media into the SD card slot.
  5. Verify the media on the SD card can be accessed while operating the system to connect to the SD card.
    • If the SD card reader media cannot be accessed 

      Refer to Circuit/System Testing - USB Port and SD Card Reader

    • If the SD card reader media can be accessed 
  6. Connect the EL-50334-20 Multimedia Interface Tester (MIT) to the X92 USB Receptacle and select the USB test mode.
  7. Verify the audio from the EL-50334-20 Multimedia Interface Tester (MIT) is heard through the infotainment system while operating the system to play audio from the test tool.
    • If audio is not heard from the test tool 

      Refer to Circuit/System Testing - USB Receptacle.

    • If audio is heard from the test tool 
  8. All OK.