Viper 791XV, 93 f150

I recently installed a 791XV in my truck and am having a few problems. Ive dealt with some basic systems before but nothing this sophisticated. First, does the sattalite relay need to splice into the ignition or does it need to completely bypass the existing ignition. Basically I installet it just by splicing the power and ignision wire but I have no response, im wondering if I clip these and only run directly to the relay if it will work.

Second

I was messing around with the alarm testing a fes triggers when all the sudden nothing works. The alarm is silent and still arms but the LED stays lit constantly and nothing triggers the alarm.

Any suggestions

Thanks

Your in valet mode. Read the manual. It tells you how to take it out of valet mode.

OK now I feel dumb, that fixed it. Thanks

But what about the relay, is it intended to bypass the wires or to be spliced in. I connected the 2 red to constant 12v, the starter ouput and starter kill are hooked up, and the pink is spliced into the ignition wire. I have not hooked up the orange nore have I hooked up the pink/white, I dont beleive ther is a second ignistion wire on my 93 f150 but I could be wrong.

So with that hooked up I turn the key and it wont even crank over. When I disconnect the ping it works fine.

Did you connect the skinny red wire with the 15 amp fuse to constant 12v? Fuse ok? Ground wire good? Antenna plugged in? Your battery dead?

No 2nd ignition...accesory in the truck is grey / YELLOW. You will need to connect this if you want the heat to turn on.

When you disconnect the ping???

You should have cut the RED / blue starter wire. The green wire goes to the side coming from the key cylinder. The purple goes to the other side.

OK Skinny red is connected to constant 12v, fuse is good. The main harness ground wire and orange ground when armed are grounded together. Antenna is plugged in and battery is good.

The truck has 2 grey / YELLOW wires so which is the correct one or does it matter. I also noticed that the relay has 2 fused constant 12v. I have spliced the 2 wires into one yellow constant 12v on the ignition but just realized there are 4 of these yellow wires.

the PING was supposed to be thing, when I disconnect the pink wire the truck starts.

I also checked the connections for the RED / blue to the relay and all is good.

****EDIT: this post and the following 5 posts moved to this original topic****

I have the green output attached to the pink/lg wire on the doorlock harness and the blue attached to the pink/yel. The wiring diagram for the truck says that the pink/lg is the 12v lovk and the pink/yel is 12v unlock.

Do I have the alarm hooked up properly

Doorlock wiring diagram: https://www.geocities.com/scubagdh/doorlock.gif

791XV Install guide says:
Green = (-) Lock (+) Unlock output
Blue = (+) Lock (-) Unlock output

If its right why doe is not work?

What kinda vehicle you're hooking it up to??

Be nice to know Year, Make & Model:

Sounds like a FORD.............
Your 791 may require Relays for a stronger Pulse.
Even though the 791 has the ability to change from Negative & Positive Pulse, some vehicles require more amps then the 500ma or less the 791 has

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Its a 93 f150

mo12v] wrote:

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Be nice to know Year, Make & Model:

Sounds like a FORD.............
Your 791 may require Relays for a stronger Pulse.
Even though the 791 has the ability to change from Negative & Positive Pulse, some vehicles require more amps then the 500ma or less the 791 has

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That's what I was thinking, also. 5-wire door lock situation. Also, doesn't the 791 come with a 451M relay module???

The only relay I see is the 500M Sattalite Relay

How many sensors can you run off 1 alarm and what is the best proccess for programming a DEI proximity sensor? I am putting it in a pickup so I want it to read if there is any wandering arms into the bed of the truck.

goinbig78 wrote:

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How many sensors can you run off 1 alarm and what is the best proccess for programming a DEI proximity sensor? I am putting it in a pickup so I want it to read if there is any wandering arms into the bed of the truck.

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If the sensitivity it set so it picks up a wandering arm, it will also pick up rain, the wind blowing, and cars driving by. After getting false alarm after false alarm you will want to throw it out the window.

I noticed you mentioned the orange ground when armed and the black ground wire are both grounded.......

Take the orange wire off of ground. You actually will not need it at all, unless you are planning on adding anything else that requires a ground when armed. The reason your truck isn't starting with the key is the ground when armed controls the starter kill relay. If it is grounded all the time, when you turn the key on, it opens the starter wire, and it will not crank.

See if this does the trick for you.....

Gus


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Wherever I go, that is where I end up......