S&S® Cycle Guardian Diagnostic System Manual

Note: - Guardian software is compatible with Windows® 2000/XP/Vista/7 32-bit systems. It will not work on 64-bit operating systems. 

- Also, the Guardian system is only compatible with the S&S IST® ignition system. It is not compatible with stock Harley-Davison® or other aftermarket modules.

Guardian™ Software

The Guardian™ software is to be used with the S&S® Guardian Diagnostic System hardware. 

Part Number: 55-5075 

The Guardian Diagnostic System allows you to perform the following functions:

  1. Enable break-in rev limit function for new or rebuilt engines.
  2. Rev-limit adjustment.
  3. Read and clear diagnostic trouble codes.
  4. Calibrate the speedometer in 2004 – ’06 H-D® models
  5. View live engine data.
  6. View history data (peak engine speed and temperature, hour of operation, and others)