08 f150 problems with remote start

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stroked4.6

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Joined: December 24, 2006

Location: United States

Posted: July 11, 2009 at 6:17 PM / IP Logged

I installed a Python 991 in my 08 F150 FX4 and am having some issues.

The problem is the remote start will only work if the truck has the door open. I havent tried door open and armed. Once I shut the door the truck dies. I installed two diodes for the front doors both going to the common green wire on the brain for the (-) door trigger. The security system is working door locks lock and unlock no problem and with the door shut the alarm will go off if I set it.

With the door shut if I press the start button I get 8 flashes. Im trying to understand what is goin on here. The door trigger wires Im connected to are BLACK / YELLOW (drivers) and BLACK/ pink (pass). Any idea on whats goin on here??

Thanks

John

stroked4.6

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Joined: December 24, 2006

Location: United States

Posted: July 11, 2009 at 6:37 PM / IP Logged

I forgot to mention I added a 10K resistor going from 12V constant to the (-) door trigger. In my info it states if you dont do this the BCM will send out a pulse and trigger the alarm after 30 min and this solves the problem. I dont have any issues with the alarm goin off but this issue so it is working. Any ideas??

chev104275

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Joined: November 26, 2007

Location: Massachusetts, United States

Posted: July 12, 2009 at 7:26 AM / IP Logged

did you test the wires you are hooked up to should be 12v with door shut and 0v with door open i would think the problem would be your door triggers theres a black blue wire in the drivers kick panel its a positive trigger this is what i use

If i Can't Install it I Don't need it Joe

stroked4.6

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Joined: December 24, 2006

Location: United States

Posted: July 12, 2009 at 7:29 AM / IP Logged

What I did was put my DVOM on continuity. Wiith the door closed no continuity but once I opened the door I had continuity. I wired that to the (-) trigger input.

chev104275

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Posted: July 12, 2009 at 7:38 AM / IP Logged

it sounds right according to the manual what does 8 flashes mean ? ive never used those wires you could try swapping to the positive wire ive done dozens with that wire

If i Can't Install it I Don't need it Joe

stroked4.6

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Joined: December 24, 2006

Location: United States

Posted: July 12, 2009 at 7:40 AM / IP Logged

8 flashes - Neutral safety shutdown

stroked4.6

Member - Posts: 16

Joined: December 24, 2006

Location: United States

Posted: July 12, 2009 at 7:42 AM / IP Logged

If I go to the positive door trigger will I have any issues with the delay dome light?

chev104275

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Posted: July 12, 2009 at 7:43 AM / IP Logged

where do you have your neutral saftey wire hooked to ?

If i Can't Install it I Don't need it Joe

stroked4.6

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Location: United States

Posted: July 12, 2009 at 7:45 AM / IP Logged

Pink/light green wire on the pass side

chev104275

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Joined: November 26, 2007

Location: Massachusetts, United States

Posted: July 12, 2009 at 7:49 AM / IP Logged

try just grounding the neutral saftey wire you shouldnt need it that truck has an electronic neutral saftey switch

If i Can't Install it I Don't need it Joe

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