alarm won’t go off when door is open

I just finished install the scytek 4000-ws on the Ford explorer 1999. The problem I push the LOCK botton on the alarm. I received a open door message. I isolated diodes for all doors and trunk hatch. I haven't connected the dome light trigger yet. The part I don't understand is that they said in the wiring diagram that BLACK/ light lbue + for door trigger and the same wire for domelight supervision. While they tell me in the note that all doors need to be isolated with diodes and they all negative trigger. I tapped all diodes door wires into the a single wire Green from the brain.  I metered all the wired for doors, they are all negatives and they are all correct. Please help

Item	Wire Color	Polarity	Wire Location
12V	yellow	Positive (+)	ignition harness
Starter	RED / lt. blue	Positive (+)	ignition harness
Starter 2	none
Ignition	GREEN/ purple [1]	Positive (+)	ignition harness
2nd Ignition	none
3rd Ignition	none
Accessory	gray / YELLOW [1]	Positive (+)	ignition harness
Accessory 2	BLACK/ green	Positive (+)	ignition harness
Tachometer	tan / YELLOW		PCM [6]
Power Door (Lock) < color=#0066cc >Wiring Diagram for [< color=#ff0000 >Negative (-)] Door Lock	pink / YELLOW	Negative (-)	driver's kick panel
Power Door (Unlock) < color=#0066cc >Wiring Diagram for [< color=#ff0000 >Negative (-)] Door Unlock	pink/green	Negative (-)	driver's kick panel
Door Trigger	BLACK/ lt. blue [4]	Positive (+)	driver's kick panel
Dome Supervision < color=#0066cc >Wiring Diagram for [< color=#ff0000 >Positive (+)] Dome	BLACK/ lt.blue	Positive (+)	driver's kick panel
Headlights	RED / yellow	Positive (+)	light switch
Parklight Positive	PURPLE / white [3]	Positive (+)	driver's kick panel
Parklight Negative	WHITE/ purple	Negative (-)	driver's kick panel
Wipers	wht & dk.blu/org [7]	Positive (+)	wiper motor or relay
Left Front Window (Up/Down)	wht/blk - red		at motor in dr door
Right Front Window (Up/Down)	wht/yel - tan/lt.blu		sw dr door or dr kick
Left Rear Window (Up/Down)	gry/org - yel/lt.blu	A	sw dr door or dr kick
Right Rear Window (Up/Down)	yel/blk - RED / blk	A	sw dr door or dr kick
Trunk/Hatch Pin	common with doors
Hood Pin	tan/lt.green	Negative (-)	driver's kick panel
Trunk/Hatch Release < color=#0066cc >Wiring Diagram for [< color=#ff0000>] Trunk/Hatch	none
Factory Alarm (Arm)	arms on lock [5]
Factory Alarm (Disarm)	dk. GREEN/ purple	Negative (-)	driver's kick panel
Horn	yellow/lt. green	Negative (-)	steering column
Brake	lt.green	Positive (+)	driver's kick, brake switch
Door Motor (Lock)	pink/black		driver's kick panel
Door Motor (Unlock)	RED / orange		driver's kick panel
Disarm	pink/orange [2]		driver's kick panel
Disarm No Unlock	none	none	none
Additional Info:
Some models ofThis vehicle are equipted with PATS (Passive Anti Theft System). Use Commando module TransMod to over-ride during remote start. [1] Two wires each at switch, both are common, only need to power 1 each during remote start. [2] You may also use the pink/green power unlock wire. [3] Also found to be WHITE/ black at the rear of the switch. [4] To avoid the dome light delay and dome light time-out use the separate door triggers. In the drivers kick panel find yellow/black for the drivers door, lt. GREEN/ YELLOW for the drivers rear door, and WHITE/ purple for the rear hatch. In the passengers kick panel find gray/red for the passenger front door, and pink/lt. blue for the passengers rear door. All five wires are negative trigger and must be diode isolated together. [5] Arms on lock only with door open. It is necessary to send a signal to door trigger as well as lock to arm factory alarm. [6] The PCM is located at the top of the firewall towards the passenger side, the tan / YELLOW tach wire is also found at the back of the instrument cluster. [7] Also found yellow/white(-) at the firewall connector. Another thing is that why when I removed the key off the ignition with the door open, I still hear the chime sound. Usually the chime sound should go away if the key is removed off the ignition even the door is open like many other cars. Why go wrong here please help. The alarm not trigger any doors. And when I armed the system keep getting the message door open. Please help

If the skytec has the ability to be programmed to ignore the dome delay......do it. Use the (POS)+ trigger instead. simple is better!

BUT. Make sure you ALWAYS have your dome light switch set to door, never in the off posistion. Otherwise.....no door trigger.

try using a relay some cars don't ground completely  and also check the diodes make sure all are in the same direction

jmsounds

If you are going to sep. door contacts and then diode isolating them together you also need to diode isolate them from the cars body control unit. where you connect your alarm wires (green) to each contact after that join ie away from the contact,  run a diode on the door contact cable with the band towards your joint, this will prevent the body module falsing your alarm, you also won't have to programme int (dome) light delay. If you can access directechs ENICE knows the tech hint number because this problem comes up every two weeks! To Kar tune man you are right but I prefer my method as you have more control such as genuine door adjar warnings.

How do I connect to the actual domelight as KarTunMan said for this Ford Explorer 1999. Can you show me the location for the dome wire( or it just the one as the wiring diagram listed). For Howie method, I am kind of confusing reading your direction. You mean that I have a use an extra diode to connect to the green wire off the alarm unit and with the band side to the side of joint comming from all five doors that isolated diodes for each door. I have to fix this car this Wednesday, please help.

howie is saying to do this diagram here:

https://64.85.6.129/extrainfo/diagrams/5899_EXPLORER_FORD%20DOOR%20PIN%20ISOLATION.pdf

this should work for you.

Frank

Where is the BCM in this Ford Explorer 1999. Can I just use the door wires that come from passsenger and drivers kick panel. Or these doors wires have to be at BCM. There is 5 door wires total, as per diagram that KartuneMan send me. I have to use 10 1amp diodes to isolate. 5 for the BCM with the no band face to the BCM,  and another five diodes comes from the brain which is the  -green wire negative (Scytek). Twisted them togther and connect to the BCM with the band toward the joint. And then use Violet + (scytek) for positve door trigger to + BLACK/ lt blue door trigger or domelight on the Ford. Or the second method is the throw in a relay and just use five diodes. The only thing I don't understand that where is the positive door trigger being connected to if I use the diagrams below. Look like the connect from the brain of the alarm is the negative trigger, and positive trigger (brain) to positive trigger(Ford) BLACK/ light blue. Help me to locate the BCM on the Ford, or the I just be able to use all the wires from pass. and drivers kick and follow the connection of this diagram below

< color=#0068cf>htt! p://www.directechs.com/techtips/pdfs/resources/security/directed_techtips/1076.pdf

minhbach wrote:

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How do I connect to the actual domelight as KarTunMan said for this Ford Explorer 1999. Can you show me the location for the dome wire( or it just the one as the wiring diagram listed). For Howie method, I am kind of confusing reading your direction. You mean that I have a use an extra diode to connect to the green wire off the alarm unit and with the band side to the side of joint comming from all five doors that isolated diodes for each door. I have to fix this car this Wednesday, please help.

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Pull the light down from the headliner, and test the wires at the light. The one that changes polarity when the door is opened (from negative to pozative) is your (POS)+ door trigger