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Okay, so I just had the Viper791 installed onto my '94 3000GT SL and like everything works but when the hood goes off, the remote is indicating that the trunk has been breached, not the hood. So I called the shop and the guy said that the reason why that is is that both the trunk and the hood share the same line/connection. So even if the hood is breached, because there is only one line going in, it reads trunk on the remote. Is this true? Does other people's read both trunk and hood when depending on which one is breached or does it only read trunk/hood?

i know on my 790, if you hold all the buttons down to go into setting it up for vibrate and lite on/off....if you push the aux button, it'll switch from trunk...to hood...to hood and trunk. Dunno if it's the same with the newer keyfobs, but it might be worth a try?

bobk, sorry for my ignorance but I don't really know how to read those high tech stuff. Yes, the remote has a picture of a car and it does have have the icon for a trunk and a hood, just don't know why only the trunk displays.

godsegoizhuge, thanks for the info. I'll try it tomorrow when there's more light. I hope the guy at the shop wasn't lying to me because I'm gonna be freakin' pissed if he was.

Anyone else with any info please let me know. Thanks.

i have a matrix rs3 and godsegoizhuge has got it right. i bought a remote for the matrix rs3.5 (same as 791) and it works the same way.

if you notice when you put in the battery on your remote, you will see numbers 1 through 6 scroll down the side of the car. if when you open the hood it should report zone 6, but shows the trunk. all you have to do is hold down all of the buttons to change the settings on the remote. the trunk should report zone 1 and the hood should report zone 6. if you open the hood and it reports zone 1, he installed it wrong.

jc18750, I just triggered the alarm on my car with the hood and trunk but both don't report any zones being breached. The trunk icon just lights up. And the numbers go from 2-7 so I dunno..... Do you think maybe that's just for Clifford's Matrix?

godsegoizhuge, I was reading the manual and it says that while in programming mode, pushing "aux" would change the page on/off mode. I tried it out nonetheless so this is what happened. When I was page mode was on, then it's when the alarm goes off, my remote beeps and and shows that the car's been tampered with. If the page mode was off, when the alarm goes off, my remote does beep or anything (which defeats the whole purpose of the remote). So yeah, I guess it is just on your 790. :( Thanks for the help though.

Anyone with any other thoughts please let me know. Thanks.

go back to your owners manual to the programmable remote control features get your remote and press all four buttons at the same time till your remote beeps. Then press the AUX button to toggle between trunk or hood or so the remote could show both icons when either one is set off.All DEI lcd 2-way remotes are the same regarless if its viper,clifford,python.

did they use grey for the hood trigger and blue for the trunk? if they just used blue then it would show trunk for the trunk and hood.

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MECP certified installer

sroth140 is right. the blue wire on the main harness is labeled "multiplexed trigger input" in the install guide. it says that it is commony used for the trunk. the grey wire on one of the smaller harnesses is strictly labeled "hood pinswitch shutdown wire.". i checked my new remote, and your right. it goes from 2 - 7. zone 1 is for the shock sensor and it is seperated into this box. 1 & 2. 1 is for the blue wire on the shock sensor. and green is for an extra sensor (sold seperately, such as a motion sensor). posted_image

anyway, if you hold down the unlock button, lock button, trunk button, and the aux button on the remote all at the same time, your remote goes into programming. press the TRUNK button to select between trunk, hood, neither, or trunk and hood. don't press anything for about 5 sec and remote will exit programming. follow this link, and i have a short movie of how to do it. it's about 26 seconds long. you don't have to press all of these buttons, but i did them all.remote link

sroth140 wrote:

did they use grey for the hood trigger and blue for the trunk? if they just used blue then it would show trunk for the trunk and hood.

sroth140, I'm not too sure about that one but I'm thinking that yeah, that's probably what the guy did. Because he said there was only one line going in but after some responses and trying to read and understand the installation guide, I think he didn't see the other line. The thing is, he's so used to working on alarms that he didn't even look at the installation guide and from what I hear, a separate line for the hood and trunk is somewhat new still. So yeah, I called him back and he said he'll check it out but I think he's gonna end up not doing it. So if he doesn't, can anyone here kind of walk me through on how to redo it so that it'll work properly? Thanks guys....

I tried calling him back later during the day and he never picked up.... :(

find the brain module for the alarm. see if the grey wire on the small harness of the brain is connected. to test if it is the right wire, start your remote start and then ground the wire out. (first test it with a multimeter to make sure that it isn't live.) it should make the engine shut off. then find the white wire with the blue wire on the main harness, he most likely split the wire at the brain, so see if it has 2 wires running to it. clip one of the wires, open the hood and then arm your alarm. it should tell you nothing if you clipped the right wire. if it still tells you that the trunk is open, reconnect that wire and clip the other one. attach that wire to the grey wire that you earlier found to be the hood shutdown wire. pack it back up and call it a day.

"white wire with the blue wire" meant to say blue wire. sorry.

So my buddy from SoCal just called and he said his shop would install my alarm for $50 as opposed to the $230 INCOMPLETE install I received!!! Damnit...I just got screwed over and then some.

Okay guys, I need your help. So I finally got a hold of the guy and he said that the H3/2 Gray wire is only for the remote start. I don't have the remote start hooked up so he said that the icon wouldn't light up/work even if it the hood pinswitch was connected to it. Is this true? If we connected the hood trigger wire with the gray wire H3/2 wire will it show hood or will it only show the hood icon if the whole remote start was installed?

why did you get a 791XV for alarm only when the 690HV is a two way alarm with all the features of the 791xv alarm.

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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta

On page 25 of the installation guide, it says:
"It (the H3/2 gray wire) will also trigger the security system if the hood is opened while the system is armed and report Zone 1." Do you think it will still do this without the remote start installed?

extreme1, because the place that I got my alarm from didn't have the 690HV. And who knows....I may hook the remote start up in the future....

yes, that wire will work as a security option regardless of having the remote start wired or not. he hooked it up wrong. take it back to him and tell him to fix it. that's not the only wire on the harness that he probably didn't install. there is also a brown wire on that harness that monitors the brake. your alarm will sound if the brake is depressed. but in the install guide it's labeled "brake switch shutdown". he most likely didn't install that either.

if you learn to do it yourself it's even cheaper. and you don't have to worry about some idiot screwing things up.

jc18750 wrote:

if you learn to do it yourself it's even cheaper. and you don't have to worry about some idiot screwing things up.

True...I tried doing it myself with a friend but we couldn't find everything. Our first problem was that we couldn't find all the screws to take out the underdash. After that, the wiring diagrams for my car weren't always right. I got the diagrams from this site and some bull dog security site and both were wrong at certain places which messed us up. So yeah, eventually I just ended up taking it to the "professional".... :o/ But yeah, I'm gonna try and get him to finish it up....

Viper 791 Hood