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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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2005 F150 wont start. Red light under dash blinks 4 times

Customer Question

2005 F150 wont start. Red light under dash blinks 4 times goes off 2 seconds then repeats.
Horn will beep and blinkers, dash lights,radio blink for 1 min.then door locks and lights
and horn stop.Under dash still keeps it's 4 blink cycle
Submitted: 1 month ago.
Category: Ford
Expert:  david craig replied 1 month ago.

Hi Im David, thanks for visiting the site, does the engine crank or is it doing nothing?

Customer: replied 1 month ago.
NnoNothing happens when I turn key as far as starting . The pats system , I guess acctavates horn blinkers ect
Expert:  david craig replied 1 month ago.

yes Pats does do that and its a bulletproof system, standby a few while i look up something.

Customer: replied 1 month ago.
OK
Expert:  david craig replied 1 month ago.

5.4 3V ?

Customer: replied 1 month ago.
Not yet
Expert:  david craig replied 1 month ago.

huh?

Expert:  david craig replied 1 month ago.

Ok, pats has lost it key coded memory. only solution is having the key reprogrammed. Dealer or certified locksmith

Customer: replied 1 month ago.
I was typing not yet to the message trying to get me to use phone service I can read text answer
Expert:  david craig replied 1 month ago.

ok, just ignore those pop ups

Customer: replied 1 month ago.
Your telling me that the keys or the pats computer lost program
I tried both keys kept in different locations can't be a key problem
Expert:  david craig replied 1 month ago.

you tried both keys. both did not work. whats that telling you? it doesnt matter where the keys were kept if the Pats receiver dumped the codes

Customer: replied 1 month ago.
Just making sure it was the unit and not keys
Expert:  david craig replied 1 month ago.

no, its the keys the will need reprogrammed to the unit since the unit dropped memory.

Customer: replied 1 month ago.
If the unit dropped the keys program and I get keys reprogrammed
Won't the unit just do the same to the reprogrammed keys
Expert:  david craig replied 1 month ago.

the unit is not reading the keys. you need the keys programmed. I dont know how else to tell you this.

Customer: replied 1 month ago.
I know you are telling me reprogram keys
What I do not understand is is how both keys could lose program
the same day RFI chips almost never go bad.
Expert:  david craig replied 1 month ago.

Ok, Im opting out, maybe someone else can explain this too you better than I

Expert:  Chris (aka- Moose) replied 1 month ago.

Welcome, I'm Chris (aka Moose).

  • Although I work here everyday, please understand it is not all day and rarely morning time.
  • To get the most from me and the best experience, please give me the best details you can.
  • The website will offer you a phone call option for more $$. Some I do fulfill and some I do not.
  • Thanks, let's get started.

Would you like me to try and help?

Customer: replied 1 month ago.
Thanks for trying but 2 keys going bad some time I just can not understand but I will try to get them reprogramed
Expert:  Chris (aka- Moose) replied 1 month ago.

If you change your mind and would like me to try and assist, just reply and let me know.