The MS531-HD is a professional diagnostic tool for Harley-Davidson workshops and tuning centers. The unit comes with one of the two interfaces, (either USB or optional USB and Bluetooth) the software package and the 4-pin, 6-pin, and OBD2 connectors. With the software running on a PC or laptop with USB connection and running Windows 7 or 8.1 and 10. Start your PC and the MS531-HD software, plug the interface into the motorcycle's diagnostic connector and you can run a complete diagnostic test or check if all on-board electronics, sensors and actuators work correctly. But there is more! Apart from these tests the MS531-HD also allows you to adjust idle speed between 800 and 1,200 rpm on models with a Delphi Fuel Injection, pair new key fobs with the on-board Security Module, and so on.

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Motorcycle Diagnostics for Model Year 2022 and Older

Overview of the Harley-Davidson® models

All models since 1995 (Delphi, Magneti Marelli, VDO IGN, Thunder MAX EFI)

 Global test - searches for and identifies all active diagnostic modules, reads fault code memory plus generates and prints a diagnostic report

 Flashing of BLANK ECM (Requires Advanced Dongle)

 Ignition module diagnostics

 EFI (Electronic Fuel Injection Module) diagnostics (All Models)

 TSSM diagnostics (Turn Signal Security Module) Key FOB with button

 HFSM diagnostics (Hands Free Security Module) Key FOB without button

 BCM (Board Control Module) Key FOB without button

 SCM (Security Control Module)

 Gauges (Speedo, Tach and Instrument Module)

 ABS Module readout - ABS Brake Bleeding (Delphi & CAN Models)

 Multi-lingual: English, German, French, Italian, Spanish, Dutch, Czech, Russian

 Radio / Entertainment system configuration

 Read and Clear Diagnostic Trouble Codes (Fault Codes) from all diagnostic modules

 Read Identification data (part number, VIN number) from all modules

 Monitoring real-time data and data logging (throttle position, temperature, oxygen sensors, turn signals etc.) Logging and Graphing

 Test actuators (injectors, coils, main relay, fuel pump, idle, turn signals, tachometer, lamps etc.)

 Idle speed adjustment 800 - 1200 rpm (models with Delphi Electronic Fuel Injection Module)

 TSSM configuration read/change PIN, disable/enable Auto arming, etc.

 HFSM configuration Key FOB assignment/replacement programming, disable/enable, Auto arming,  read/change PIN

 Display, Graph and Print live data from various parameters including RPM, TPS, MAP and more.

Toolbox (special functions all in one place including description of the functions)

 Speedo module: Parking Brake, Instrument External Indicator Bar, Traction control telltale (two wheels / trike)

 Instrument TPMS Option (enable/disable)

 Vehicle speed sensor calibration (VSS)

 Module replacement (TSSM, HFSM, BCM)

 ABS Service (Bleeding and Configuration, Delphi + CAN 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 (6-pin Data link connector)

 Chassis Fan Cooler configuration (enable/disable)

 Radio customization (all models including)

 RADIO BOOM! BOX GTS 2019 - Speaker Configuration, Radio region code, Digital Audio Broadcast, Rear Speaker switch installed, Navigation, TPMS ( Tire Pressure Monitoring System ), Audio input 1 2 and 3, CB Radio, CB Frequency, Intercom, WHIM ( Wireless Headset Interface Module), Bluetooth, Apple CarPlay Mic Type, Apple Siri, SMS Text Messaging, Front Audio Output, Rear Audio Output. Custom Audio Flash - J&M Corporation ( Audio Flash Stage 5 )

 ABS Telltale configuration on CAN models

 Radio pairing, Buell TPS adjustment, Speedo pairing (CAN models)


 Reset AFV (all models and Buell®)

 TCU module Installed / not Installed (Telematics Control Unit)

 Exchange PTT and Cruise Control on Hand Control modules

 BCM Customization - External Bank Angle sensor, Auxiliary/Fog light Operation, etc.

 Updated   Key FOB assignment/replacement, PIN read/change,

 Disable/Enable: Auto arming, Sidecar, Service mode, Lights configuration, Keyless ignition, BCM customization: Stealth mode "Police"-(enable/disable) Rider Assistance -ABS, Traction Control configuration

 Fork Lock Switch - configuration TPMS - valve assignment

 Front and rear turn signal (LED/Incandescent)

 EBAS (External Bank Angle Sensor) - no EBAS / FLHTCUTG / FLRT Power Lock Switch for Saddle bags and Trunk (disable/enable)

 Disarming (HFSM/BCM module) - PIN read/FOB assignment on armed bike

 (for BCM modules a CAN disarming cable is needed)

 TPMS configuration - BCM, Speedo, Radio

 Odometer units settings KM/ MIL -All models

 Reset AFV (all models and Buell®)

 Oil Cooler Fan (enable/disable)

 Oil Cooler Fan (enable/disable)

 Button with a direct link to the On Line Help (

MS531 USB or USB/Bluetooth Serial Interface


HD 4-Pin Cable


HD 6-Pin Cable

PC Requirements:

Windows 7/8/10


RAM 512 MB (recommended 1 GB or higher)

Free USB Port (Second USB port required for Tuning)

MS531-5007 Bluetooth + USB


Harley Davidson / Buell  Diagnostic Software

MS531-5006 USB

Optional MS531-4028

CAN Disarming PWR Cable

The set includes:

MS531 Communication Interface

MS531-5006 USB


MS531-5007 Wireless Bluetooth + USB

MS531 Software

Harley-Davidson & Buell

MS531 Adapters

Harley-Davidson & Buell 4-Pin Cable


Harley-Davidson 6-Pin Cable


Harley-Davidson OBD2 Cable


Now Includes Version 22 Software

Optional:  Indian / Victory Coverage Available


HD OBD2 Cable