AEM EMS4 USB Connection – Windows 10, 8

The EMS 4 is known to have issues connecting to Windows 8 & 10 devices, this guide will help solve those issues.

These instructions are from Microsoft directly.

  • Connect the device to the computer.
  • Search for “device manager” in the Search Box, and open Device Manager.
  • Expand the Human Interface Devicesnode and select the device that is causing the issue. Note that the device might be listed by name or as “USB Input Device.” Also, there might be multiple “USB Input Device” nodes. Follow these steps to determine the problem device:
    1. Disconnect the problem device from the computer.
    2. Right-click each USB Input Devicenode, select Properties, and note the device description and details.
    3. Reconnect the problem device.
    4. Reexamine each USB Input Devicenode to determine the new device, which represents the problem device.
  • Select the View–> Devices by connection from the menu. You’ll see the parent USB device to which the problem device is connected.
  • Right-click the parent USB device that you found in the previous step and select Properties.
  • View the Details
  • Under Property, select Device Instance Path, and then note the ID information. An example ID is USB\VID_045E&PID_000E\6&61F43E3&0&2. This line is a combination of these IDs:
    • Vendor ID (VID)
    • Product ID (PID)
    • Instance ID
  • Open Registry Editor (regedit.exe) by searching for “regedit” in the Search charm.
  • Navigate to HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Enum\ USB.
  • Expand the USB folder.
  • Under the USB folder, open the folder with the name that matches the VID and PID that you noted in step 8. In this example, it’s VID_045E&PID_000E.
  • Under that VID&PID folder, find the folder that matches the Instance ID you noted in step 8. In this example, it’s 6&61F43E3&0&2.
  • Under the Instance ID key, select Device Parameters.
  • In the details pane, right-click the EnhancedPowerManagementEnabledentry and then click Modify.
  • Change the Valuedata to 0 and then click OK. See image below.
  • Exit Registry Editor.
  • Unplug and plug the device.

Toyota / Lotus Performance Parts