95 explorer, 790 XV and 556U

I bought a 790 XV and the guy sent me a 556U to bypass the factory alarm. The DEI says that the 556U will work, but I dont understand how to wire it sense my 1995 2dr ford explorer dosent use a RF chip in the key. Thanks in advance for the help. (im a veteran audio installer, but alarms are new to me)

Are you sure that you even have an immobilizer? If you can start your truck with a plain metal key then you don't have an immobilizer and don't need the 556U.

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Certified Security Specialist
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the key I use is a copy so i know theres no Chip in it. I do know I have some type of alarm. I say this becasue if I use the factory keyfob / remote to lock the door and then open the door after its armed I get the annoying horn honk. this can be stoped by starting the car with the copied key or the remote. So if I dont have an imobilizer what do I need to do to disarm the factory alarm that I do have. Thanks for the fast repy :).

This vehicle does not have a chip in the key.You don't need any special unit. You simply connect your unlock wire (diode isolate)to the factory disarm wire.

So, do I hook up the door unlock output from my 790XV to
"OEM Alarm Disarm D GREEN/ PURPLE (-) IN ROUND 55 PIN CONN IN DRIVER KICK" ?

Or

Would i hook up the Lt GREEN/ Black Factory disarm/special accessory output (on the 790) TO "OEM Alarm Disarm D GREEN/ PURPLE (-) IN ROUND 55 PIN CONN IN DRIVER KICK".

Any considerations I need to make sense Im using remote start?

Thanks!

Lt GREEN/ Black Factory disarm/special accessory output (on the 790) TO "OEM Alarm Disarm D GREEN/ PURPLE (-) IN ROUND 55 PIN CONN IN DRIVER KICK
that would be ideal...

Thanks for all the help guys. Now I have to figure out how to wire my wife's 2002 camaro factory alarm bypass, but thats another Thread

Ok i installed my 790XV in my explorer and Im have a few problems. Here is the list, any help is greatly appreaciated.
1. The alarm falses after 20-30 mins and shows as a door trigger. I tied the door triggers from the kick pannels togeter and used a diode. the diode has the Stripe towards the kickpannel not the alarm module.

2. The Microwave sensor will not "warn" it only triggers the alarm. I set it up so outside movement triggers the green led and inside movement triggers the red led. As per the install manual I hooked up power and ground and then took the blue and green wire and hooked them both up the to the bule "multiplexed" input on the alarm. (no diodes). The green light goes off and nothing happens, and then the second tiem the green light goes off the alarm triggers.

3. I tried to hook up a relay to aux 4. the relay cam from rat shack and is an automotive relay. I hooked up constant 12v to one side and the oposite side is connected to the device I want to power up when activated. I hooked ground up to the ground pin and hooked the aux output the the pin across from ground. When aux 4 is activated I read .6V to the relay but the relay dosent send the 12v to the device I have hooked to it.

3. The key chain does not vibrate or show me when the alarm is acivated. How do I turn this function?

4. If I use aux 4 to turn on my Neon, what do I hook my power window module to so I can control the windows from my reomote?

5. I hooked the dome light to the 790 as directed so it would activate the alarm when the dome light turns on. When I lift the door handle and the dome comes on the alarm does not trigger. Any sugestions?

Thanks in advance for any help. This is my first time installing an alarm. I think I did pretty good considering the remote start worked LOL.

can you answer any of the 5 questions I posted? Do you have any hints as to what I might want to look at? Do you need me to more specificly explain any of my issues so that you can better help me? Thanks.

I used pink/green and pink / YELLOW out of the left kick pannel and grey/red (i think) out ofthe right kick pannel. I have a 2dr sport. How about the doom light not settign off the alarm? I tied that into  BLACK/ lt.blue.

Now that you are saying yellow/black and Grey/Red those are the colors I used plus one more for the rear hatch trigger.
What would cause these to false after being armed for 20 mins? As I said I used a diode on each trigger. Is there something else that might be causing the alarm to false and
show a door being opened? I remember the manual sayign that
some other triggers show up as a door alarm? Ill spend some tiem this weekend reading the install manual again.

Good questions.. after re-reading my post I realized I went and found out what that grey/red wires was. Was kinda tired.. lol. By falsing do you mean the alarm going off? Just making sure that I understand. I really don't know to tell the truth. Could it be something else causing the alarm to go off? Shock sensor maybe? I'm not an alarm expert, just know my Ford fairly well.

Im going to spend some time on it this weekend. Something is triggering a door alarm after the car has been armed for 20 mins. So I plan to look at all the connections that cause the alarm to trigger and show as a "Door" violation. Any sugestions on my other questions? I think a mod combined my two posts and no one is looking at my other questions becasue the first 5 posts are reguarding an older question that I resolved. ( I dont know if people are readignthe entire post to get to the second set of questions I asked.)

I'm not forgetting about you I just don't have the answers to your other questions. G'luck!

1. Per DEI, "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." The 20 minutes sounds like a gem problem, not quite sure if this problem existed in 95 though.

2. What brand sensor is it. If other then DEI then it won't warn away. Damn multiplex.

3a. That doesn't sound right. The alarm is only sending 6V? Also would need to know specificaly what the relay is.

3b. You put two #3 questions. Don't know.

4. Use neons on channel 2 using a latching relay setup. Then wire the windows to channel 4. This way will be easier in the long run.

5. Goes back to the door trigger question. If you were to hook the door trigger to the BLACK/ blue +trigger then lifting the door handle would set the alarm off. If you meant hooking up domelight supervision, then it would have no effect.


-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

1. Per DEI, "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." The 20 minutes sounds like a gem problem, not quite sure if this problem existed in 95 though.


**** Thats how I have it hooked up, I also used diodes on each trigger.

2. What brand sensor is it. If other then DEI then it won't warn away. Damn multiplex.

***** Its a DEI microwave sensor. I combined the two trigger wires together per instructions and then hooked them up to the multiplex trigger on the alarm. Whats a gem problem?

3a. That doesn't sound right. The alarm is only sending 6V? Also would need to know specificaly what the relay is.

**** Correction the output of aux 4 is .6V not 6v. Shouldn't it be 1V? DO I need to buy a special latching relay from DEI or will an "automotive relay" from radio shack work?

3b. You put two #3 questions. Don't know.

4. Use neons on channel 2 using a latching relay setup. Then wire the windows to channel 4. This way will be easier in the long run.

***** How do I program the remote to activate channel 2? So I can roll up and down the windows and also crack them 2".

5. Goes back to the door trigger question. If you were to hook the door trigger to the BLACK/ blue +trigger then lifting the door handle would set the alarm off. If you meant hooking up domelight supervision, then it would have no effect.


***** I guess theres really no reason to make the dome light trigger the alarm. Probally jsut annoy the neighobors and general public when a kid walks by and pulls on my door handles.

THANKS!!!

Also its a 2dr car so I olny have 3 door tirggers. 2 doors and the rear hatch.