Diag4 Bike Serial Diagnostic System Software - W/USB Interface

Diag4 Bike professional diagnostic software with USB interface for Harley-Davidson and Buell workshop troubleshooting. Reads and clears diagnostic trouble codes from EFI, security modules, ABS, gauges, and other systems; monitors real-time sensor data and tests actuators via the OBD connector.

Features

• Diagnose EFI, TSSM, HFSM, BCM, ABS, radio, and gauges
• Read and clear diagnostic trouble codes
• Monitor real-time data: throttle, temperature, O2 sensors, turn signals
• Test actuators: injectors, coils, fuel pump, idle, turn signals, tachometer
• Thunder MAX EFI support
• Buell diagnostics included
• Metric and standard unit selection

Specifications

• Brand: Diag4 Bike
• Manufacturer Part #: AT 531 5090
• Connection: USB interface with Harley-Davidson OBD adapter
• Software Compatibility: Windows XP, Vista, 7, 8, 10
• Dimensions: 10 in L × 8.5 in W × 3.5 in H
• Weight: 3.4 lbs
• Country of Origin: Czech Republic

Fitment

Designed for Harley-Davidson and Buell workshops and tuning centers. Connects to the OBD diagnostic connector on Harley and Buell motorcycles.

Frequently Asked Questions

Does this work on my personal bike, or is it just for shops?

While designed for workshop use, any owner can use this software on their own Harley or Buell if they have a laptop and the OBD connector access.

What version of Windows do I need?

Compatible with Windows XP, Vista, 7, 8, and 10. Verify your laptop OS before ordering.

Can I diagnose Buell motorcycles with this?

Yes — Buell diagnostics are fully incorporated into the Harley-Davidson diagnostic suite.

Is a wireless version available?

Yes — a wireless Bluetooth version of the interface is available separately.

What systems can this diagnose?

EFI, ignition, security modules, ABS, body control, gauges, radio, and Thunder MAX EFI systems.