Mercury Repair Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose).
This alarm that is going off is it aftermarket?
Are the headlights flashing and the horn pulsing on and off?
Will it crank and start?
Thanks, ***** ***** theft light flashing rapid with the key in the run position?
Does the vehicle have an aftermarket add on alarm or immobilizer?
Thanks, ***** ***** very rare for the Ford PATS system to trigger from disconnecting the battery. I have to disconnect the battery on cars about 2-3 times per day as I work on them and maybe 2 in all my years of being a tech resulted in a all of a sudden anti theft issue. Do make sure the battery voltage is good at 12.6 volts and the connections are clean. Low power can cause this.
Look around on the dash for an out of place light or switch that should not be there or a module under the drivers side of the dash that is out of place. If you find these then there is an aftermarket add on system that can cause this and would be best to just remove.
It is going to take a Ford equivalent diagnostic tool to see what PATS system codes are stored, do the diag and repair, and then reprogram 2 keys to the vehicle.
Please make sure to select a rating from the top of your screen prior to logging off so the post does not time out.
Hello again Chris here,
I am contacting you because the post has not been closed or rated. We have 7 days to get a post rated before it times out. When a post times out, that means its no longer on my active list (if you reply I never know it.) You have already paid the fees to get this question answered, but it appears your not pleased, or need more help.
Let me help some more. Is there anything else you feel I could offer so you would be pleased with my help. I have the option to call you if that would be better.