DESS light flashing, wont stop?????

[digginsweatinswearin]

Hi guy's , i started my wifes 2000 700 to load it and the dess light is flashing. I have 3 dess cords for it and it is the same for all. I removed the connections on the MPEM box, cleaned them and put them back on, still the same, any ideas???

 

[Motley Doo]

They have all been programmed to that sled? The post itself could be going bad.....

 

[digginsweatinswearin]

I have run the sled with all 3 key's, i will check the post, thanks