Need help with alarm wiring
 

I own a 1999 Ford Windstar. In trying to install the door pin trigger for my alarm the wire is suppose to be installed to a brown/pink wire (dome light) located in the rear passenger D pillar at the rear control module. I used a diode as I've done this type of stuff many times and the alarm still goes off every 30 minutes for nothing. I know that it is due to my stupid vans battery saver crap. I was told that using the diode would stop this false alarm from happening. So I switched and attempted to intercept every individual door input at the front control module, isolated them with diodes and now when the door is closed it thinks that it's open and vice versa. Man it's driving me crazy. I just took my system out for upgrades so I'd like to get this fixed before reinstalling.

Any advice would be greatly appreciated.
Thanks,
Paul

Still haven't fixed this problem and running out of time before I reinstall everything. Does anyone with Ford wiring knowledge have any ideas for me to try? I'll try anything right about now.

Don't know if you have found yourself here or not but a good place i have found for alarm/wiring is:smilie_da www.the12volt.com

Ya, thanks, I think they were where I got the diode and color of wire to intercept. Unfortunately it still goes off even though I wired exactly as they said. For some reason the diode gets hot too, forgot to mention that, possibly there is something wrong with the vehicle wiring. I used the recommended diode and one 5 times larger and it still gets hot when the doors are open.

Try going from the door pins themselves, instead of from the module. You may get lucky and they could be common, if not don't forget to diode isolate!

I might have to install my own pins. The factory door pins are part of the latch mechanism. That's why I was trying at the module. I'll try to test the wires coming out of the door and see if I can locate one that works. Thanks Godzilla. Otherwise I think I'm gonna have to wire my own. :ohwell:

Thanks guys.

12 VOLTS lt green/purple & red + ignition harness Notes: When adding parking lights you must ground the black/green and interrupt the dk.blue/white and tan/white to avoid feedback to the headlights. See direct fax document #1072 for wiring diagram.
STARTER 1 green + ignition harness
STARTER 2
IGNITION 1 white/yellow + ignition harness
IGNITION 2 purple/orange + ignition harness
IGNITION 3
ACCESSORY 1 black/green + ignition harness
ACCESSORY 2 black + ignition harness
KEYSENSE
DATA BUS

POWER LOCK lt blue/orange - 20 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
POWER UNLOCK lt green/yellow - 20 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
DOORLOCK MOTOR red/orange 26 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
DOOR UNLOCK MOTOR yellow 26 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
DISARM NO UNLOCK
FACTORY ALARM ARM
FACTORY ALARM DISARM lt. blue/black - 26 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
DISARM DEFEAT

PARKLIGHTS POSITIVE
PARKLIGHTS NEGATIVE headlight switch Notes: When adding parking lights you must ground the black/green and interrupt the dk.blue/white and tan/white to avoid feedback to the headlights. See direct fax document 1072 for wiring diagram.
HEADLIGHT Notes: Can also use tan/lt. blue (-) at the power sliding door switch in each B pillar.
HAZARD
TURN LEFT
TURN RIGHT
REVERSE
BRAKE red/lt. green + brake pedal switch
PARKBRAKE

DOOR PIN brown/pink - passenger d pillar Notes: A diode must be placed in-line on this wire to avoid falsing problems. Cut the wire and put the cathode side away from the dome light, then tie the door trigger input on the cathode side on the brown/pink. On models with the puddle lamps on the doors, can also use orange/white in a 20 pin plug at the FEM for door trigger. DO NOT USE THE ORANGE/WHITE FOR DOME LIGHT SUPERVISION.
HOOD PIN purple/orange - 12 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
TRUNK PIN tied in with door
DOMELIGHT SUPERVISION use door trigger

TACH ignition coil Notes: There is a triple coil pack on the driver side of the engine. For tach use any of the following wires: pink/white, red/lt blue, or blue/lt green.
VSS
GLOW PLUGS
CLUTCH

TRUNK RELEASE
SLIDEDOORS wht/lt grn (l), lt grn/red (r) - overhead console switches Notes: Can also use tan/lt. blue (-) at the power sliding door switch in each B pillar.
LEFT FRONT UP/DWN blk/yel - orn/yel A 4 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
RIGHT FRONT UP/DWN wht/yel - tan/blu A high in drivers kick panel
LEFT REAR UP/DWN brn/yel - brown A high in drivers kick panel
RIGHT REAR UP/DWN yel/blu - yel/blk A high in drivers kick panel
SUNROOF LIMIT
SUNROOF OPEN/CLOSE
MEMORY SEAT 1
MEMORY SEAT 2
MEMORY SEAT 3

HORN orange/red - 12 pin plug at fem module Notes: The FEM module is located under the drivers side of the dash on the firewall.
DEFROST
WIPER blu/orn & blk/pnk + wiper motor

RADIO 12V lt. green/red at radio
RADIO GROUND black at radio
RADIO SWITCH pink at radio
RADIO ILLUMINATION lt. blue/white at radio
FACTORY AMP TURN ON
POWER ANTENNA
LEFT FRONT SPEAKER orn/lt grn-lt blu/wh at radio or speaker
RIGHT FRONT SPEAKER wht/lt grn - grn/orn at radio or speaker
LEFT REAR SPEAKER tan/yel - gry/lt blu at radio or speaker
RIGHT REAR SPEAKER brn/pnk - orn/red at radio or speaker

Wow, thanks KayJayf. I have this info from Alldata, but it's still good for people who may have this problem later to read.

This is the part that applies:

DOOR PIN brown/pink - passenger d pillar Notes: A diode must be placed in-line on this wire to avoid falsing problems. Cut the wire and put the cathode side away from the dome light, then tie the door trigger input on the cathode side on the brown/pink. On models with the puddle lamps on the doors, can also use orange/white in a 20 pin plug at the FEM for door trigger. DO NOT USE THE ORANGE/WHITE FOR DOME LIGHT SUPERVISION.

I don't have puddle lamps, so that's out of the question. I've done everything listed here. I even got the exact diode part number, installed it properly, and it gets super hot with the door open, and will still trigger false alarms every 30 minutes on the minute... I even switched diodes several times till I was at 5 times larger, 1 amp to 5 amps still gets hot! :dunno::bs::dunno::bs::dunno:

Any idea why the diode might be getting hot?