Hey guys! I took my 05 FLHT out for the first time this year. I noticed my left turn signal when activiated blinks normal 3 times and then blinks very fast like there is a bad bulb. I swapped the front and rear bulbs with new ones and even used dielectric grease with still no success. When I put my turn signals on to emergency flashers the left blinks at a normal pace.

I noticed when it blinks really fast, my check engine and security key comes on. Please help it's driving me nuts!!!!! Could it be the TSSM?