which wire on 2010 F150 will give neg pulse with FOB to activate RS

Question

I have it all wired up, works with tapping wire to frame, but this defeats having "remote" start. can some one give me the correct wire to use with oem key fob. the chart here says grey yellow in DKP near door sill but this did not do the trick.. please help many hours in the cold with no luck

Answer 1

What module are you installing ? The grey yellow wire is a negative from the lock switch and will not respond to oem fob.

Comments

using the one key all

I have it all wired up and working and programmed, just cant find the correct wire on the F150 to wire the RS to to make it activate with the key fob, the wire diagram given here on the site is wrong. it says the grey yellow wire in DKP but that one does not get neg ground on key fob push it is always ground

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I guess I'll just repeat :

"The grey yellow wire is a negative from the lock switch and will not respond to oem fob."

You will have to find the positive lock wire going to the doorlock motor and use a relay to reverse the polarity. This wire is not listed here has we don't use it.

Or an easy solution is to use an EVOALL and program to 3x lock start.

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well tell me this, if i hit lock on the key fob shouldnt that give the grey yellow wire the negative impulse? if it should then I think its the wrong wire for this truck. the unit that I am using takes 3 neg impulses to operate just like the evoall that you suggested. can you tell me 100% that the 2010 f150 lariat uses the grey yellow at the DKP near teh door sill as the lock wire. I know the unit works and  the fortin unit is programed becuase it will start truck when I tap the wire to the frame, so it is just needing a negative impulse to do it, or can you tell me if there is a relay under the hood or in the fuse box that will do the same thing when I press the lock button on the key fob

or what wire is the lock motor wire that I can put a relay on, im exhuasted looking for this

any help is appreciated

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I tell you 100% that the grey/yellow will NEVER give you negative pulse when you hit the lock button on the factory fob. The EVOALL does NOT operate from negative pulse, it reads the lock command on the canbus of the truck.

Your fortin bypass works 100%, you should contact the manufacturer of your remote starter to know what wire from the truck will make their product start.

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You can grab the actual motor lock wire. It's in the door.

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Thanks for the info,

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Robert Tamilio can you tell me which wire color the motor lock wire is? 2010 F150

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You might want to probe the Gray/Brown wire in the BCM (passenger kick panel).  It is in connector C2280D, pin 6.  Should give a positive pulse when the doors are locked with remote or the switch.  You'll need to use a relay to convert to a negative pulse.