Product Description

Serial Diagnostic System Software is available now from Knobtown Cycle, your Kansas City motorcycle parts specialists.

Professional diagnostic tool for Harley Davidson & Buell workshops and tuning centers. Diagnoses electronic fuel injection module (EFI) and others (Security modules, ABS, etc.) through the diagnostic connector. The system consists of a communication interface with Harley-Davidson adapter, USB cable for connection to your Laptop (PC) and software compatible with Windows XP, Vista, 7, 8 and 10. A wireless Bluetooth version of the interface is also available. An adapter for CAN-BUS models is included. The system performs the following functions and more. Software for Indian and Victory is also available.

Key Features

• Ignition Module
• EFI (Electronic Fuel Injection Module) – All models
• TSSM (Turn Signal Security Module)…………..Key FOB with button
• HFSM (Hands Free Security Module)………….Key FOB without button
• BCM (Body Control Module)………….Key FOB without button
• Gauges (Speedo, Tach and Instrument Module) – All models
• ABS Module (Delphi + CAN models) – All models
• Radio and Audio all models
• Thunder MAX EFI
• Read and Clear Diagnostic Trouble Codes………………….All models
• Read Identification data (part numbers, VIN number)……All models
• Monitoring real-time data (throttle position, temperature, oxygen sensors, turn signals etc.)
• Test actuators (injectors, coils, main relay, fuel pump, idle, turn signals, tachometer, lamps etc.)
• Buell diagnostics are incorporated in Harley-Davidson diagnostics
• Unit of measure selection metric/standard
• Communication interface is CAN ready (models with 6-pin connector)
• Module replacement –TSM, TSSM, HFSM, BCM,
• ABS Service (Bleeding and configuration, Delphi + CAN models) – All models
• ACR (Automatic compression release during starting)
• Cruise Control, Exhaust actuator, EITMS……enable/disable
• Side Stand Switch Configuration – All Models
• Intake Solenoid Valve Configuration on CAN Models
• Radio customization-region code and speaker configuration, radio pairing
• J&M Audio Configuration
• ABS Telltale Configuration on CAN Models
• Idle speed adjustment 800 – 1200 rpm (models with Delphi Electronic Fuel Injection Module)
• TSSM Customization……PIN read/change, Auto arming disable/enable etc.
• HFSM Customization……Key FOB assignment/replacement, Auto arming disable/enable, PIN read/change, Side car and Service Mode (disable/enable)
• BCM Customization……..Key FOB assignment/replacement, Auto arming disable/enable, PIN read/change, Lights configuration, keyless ignition
• Disarming (HFSM/BCM module)……..PIN read/FOB assignment on armed bike (for BCM modules a CAN disarming cable is needed)
• Buell TPS adjustment
• Dataloging
• ABS Module (embedded/not embedded)
• Speedo module pairing
• Wheel size adjustment (Speedo calibration)
• Odometer unit setting

Product Specifications

• Part Number: 867-02005
• Brand: Diag4 Bike
• Weight: 3.4 lbs

Available at Knobtown Cycle

Shop online or visit our Kansas City showroom. Fast shipping available on all orders! Free Ship to Store!

Part Locations

Stock levels last updated: March 8, 2026 5:04 PM

Professional Installation Available

Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.