The GS-911 seems very versatile and is able to access all the following systems (where fitted)
• Engine controller
• ABS
• Central Vehicle Electronics
• Instrument cluster
• DWA (Anti-Theft Alarm system)
• RDC (Tyre Pressure Control)

and here's what it can do with them
• Read and Clear Diagnostic Fault Codes
• Show ECU information
• Give Real-time Analog and Digital values for Engine control units
• Service Functionality

As my R1150R doesn't have some of the system features listed above and I fortunately didn't have any faults to clear or adjust I haven't tried all these features out, but the manufacturer's website gives the full details