uh oh spoke to soon help please

alright I dont know what went wrong but now my power light is flashing when I turn on the car, it flashes 16 times then goes off, everything seems alright it drives like before. I did the resistor mod could that be it ? I also just did the air res- and it came on after that, I did not notice it after the resistor but could be blind-- I did the self test and this is what happend------ the power light came on for about 4-5 seconds then it flashed once really quick and went off for about 4-5 sec and just kept repeating ---- the same thing for the previous prob test , can somebody please help, any suggestions are appreciated