Check engine light on along with red flashing letters LSD; what does that mean?

PURPLE MICRODOT?GOOD GRACIOUS OF LIFE!

LSD wow pass me one dude.....just kidding! LSD : Limited slip differential. The check engine light itself may be causing this light to come on though. Most trouble codes affect the AUTO LSD on Toyota. Get the check engine code read for free at an Autozone and either follow the needed repair (usually an o2 sensor) or post code results to further assist you.