Door trigger, 2005 Ford F-150

Hello all I'm having trouble with when I have the viper 5706v armed and I try to remote start the truck the alarm goes off saying that a door was open I have a 2005 ford f150 no extended cab just 2 seats it came with a remote to unlock the door no combo panel on door I connected the door trigger wire for alarm at the bcmMatt

Typically this happens when the BCM sends a negative pulse to the doors. You will need to wire +12v thru a 10k resistor to the alarm (-)trigger wire after the diodes to bias the alarm (-) trigger so negative pluses can't deliver ground to set off the alarm, only a constant or longer negative trigger will drain the (+)bias to ground. The only other way is to diode isolate the BCM from the vehicle door triggers which also stops the RAP shutdown and the dome light from working.

I don't quite understand what your explaining are you saying after the two diaods I already have installed I need to undo after the diaod add a 1k resistor and apply 12vdc constant to the resistor sending it into to negative door trigger wire going to the viper system    is that correct. If so won't that create a direct short at the resistorMatt

You attach (ADD) the +12v 10k resistor to the end of the 2 diodes that are already attached to the alarm wire (-) door trigger. The resistance is to high to create a short. you are only adding a small amount (trickle of current) at 12v which dissipates when direct grounded by door trigger. Basically offsetting the negative pulse from the BCM that would trigger the alarm. The +12v is stopped by the diodes never making it to the vehicle side.

OK I understand what your saying now ok and will that deplete the battery my truck sometimes sits in the grage for a few days with out starting And also you had said 10k on the last post and you said 1k what one did you meanMatt

Typo missed the zero and corrected it. no will not deplete you battery not enough current to even light up a 2v led

Alright awesome I will give that a shot and keep you posted with the resultsMatt

No problem.

ok i tried out the solution and it did not work it compleatley disabled the door sienceing on the alarm when i opened a door it did not even know i didMatt

Are you sure you got a 10k=10,000ohms resistor? Would check and make sure it is the right resistance. Let me know how you wired it. Should have only had to add the resistor to the wire/diode connection with out disconnecting the diodes you already had hooked up.