NEXIQ USB Link

Test the Connection to the Vehicle

The Device Tester ensures proper connection between the USB-Link™ and the vehicle.

Setup and Access

1. Prepare the Connection:
   • Connect your NEXIQ device to the Diagnostic Port/Connector on the vehicle.
   • Ensure the PC is ready with NEXIQ drivers installed.
   • Download NEXIQ Product Driver.
2. Access Device Tester:
   • From the Windows taskbar, click Start, then navigate to:
     • All Programs > NEXIQ > Device Tester or USB-Link 2 Explorer.
   • Alternatively, use desktop shortcuts for Device Tester or USB-Link 2 Explorer.

Testing Procedure

1. Select the Device:
   • Use the Device drop-down menu to choose the appropriate device (e.g., USB-Link).
   • The list shows all devices supported by the installed NEXIQ drivers.

• Figure 1.3 – Device Box Lists

1. Select the Protocol:
   • Use the Protocol drop-down menu to select the correct protocol (e.g., J1708, J1939).
   • The list displays protocols supported by the chosen device.

• Figure 1.4 – Protocol Box Lists

1. Start the Test:
   • Press Start Test to begin.
   • The Device Tester screen refreshes, and data from the vehicle bus is shown in the Bus Messages window.

• Figure 1.5 – USB-Link (J1708)

• Figure 1.6 – USB-Link (J1939)

Important Notes

• Bus Messages Window:
  • For J1708, the lower window title reads MIDs Seen.
  • For J1939, the window title reads Source Addresses Seen.
  • This window is unavailable for other protocols.

Troubleshooting Connection Issues

1. If the Connection Indicator button is red (Not Connected):
   • For Wireless (Bluetooth) Connection:
     • Ensure the Device list heading is BT USB-Link (Protocol desired).
     • Verify secure connections at the Diagnostic Connector.
     • Check that the Power LED on the USB-Link™ is illuminated.
     • Confirm the PC and USB-Link™ are paired.
   • For Wired (USB) Connection:
     • Ensure the Device list heading is USB-Link (Protocol desired).
     • Verify the USB cable connection between the USB-Link™ and the PC.
     • Check the connection between the USB-Link™ and the vehicle Diagnostic Connector.
     • Ensure the Power LED on the USB-Link™ is illuminated.

Ending the Test

1. Click Stop Test to end the session, or select another device to test.

USB-Link 2 Explorer

• Figure 1.7 – USB-Link 2 Explorer (Not connected)

• Figure 1.8 – USB-Link 2 Explorer (Connected)

The USB-Link 2 Explorer helps confirm connection status and troubleshoot issues. Ensure proper protocol and device settings for successful communication.

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