If the turn signals flash six fast four-way flashes shortly after key ON, then an error code is logged.
Invoking TSM/TSSM Code Diagnostics
Set RUN/OFF switch to OFF
Turn IGN key ON-OFF-ON-OFF-ON
Press left turn switch 2 times and release
1-3 flashes turn signals & indicators depending on vehicle configuration
1 flash-Worldwide TSM, no security
2 flashes-North American/Domestic configuration TSSM
3 flashes-European/HDI configuration TSSM
Press right turn switch 1 time and release-1 flash turn signals & indicators
Press right turn switch 1 time and release-2 flashes turn signals & indicators
Press right turn switch 1 time and release-3 flashes turn signals & indicators
Press left turn switch 1 time and release-turn signals & indicators flash to indicate trouble codes
To clear codes, press and hold left turn switch for 4-5 seconds until confirmation is received-2 flashes turn signals & indicators
Turn IGN key OFF
The codes should be listed in the self help if you do a search, I think