Viper 791, 02 SVT Focus
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=86930
Printed Date: June 07, 2024 at 9:53 AM
Topic: Viper 791, 02 SVT Focus
Posted By: ehammond
Subject: Viper 791, 02 SVT Focus
Date Posted: December 09, 2006 at 4:26 PM
Installing a Viper 791...car is a '02 SVT Focus
I diode isolated the door triggers using the method mentioned here, which is to have the strip of the diode facing AWAY from the Viper?...this doesn't seem to be correct. When I arm, the transmitter shows me a door is open, even though it isn't.
And once armed, and I open the door, the alarm doesn't go off...
Are the diodes backwards??
I also can't find the power lock triggers. I'm tapping in at the GEM behind the glove box, using the 3rd plug down (when unplugged, locks don't work)...
I read somewhere it is the blk/red and blk/yel wires...There is only one blk/red, and 2 blk/yel....NONE of them trigger the locks! However, this plug is a very light blue, not grey as I've read here. The only plug that seems grey, is actually more white, and tapping into those colour wires on that plug doesn't work either. The white (grey) plug is the second from the top. It's hard to imagine Ford changing the wiring and plug colours for different years... What am I doing wrong :(
Replies:
Posted By: KarTuneMan
Date Posted: December 09, 2006 at 8:19 PM
Your door pin problem can be solved 2 ways....the first requires 4 more diodes installed BEFORE the trigger wire of the alarm, one would be placed "in line" with each door pin wire, and the cathode on the diode should face AWAY from the BCM. The second is the easier....find a blue/blackPOS(+) "all door pin" wire at the BCM, no diodes needed. It's in the plug below the plug that has the trunk release in it. The locks are in the drivers kick...blk/red, and blk / YELLOW. The are in a harness almost under the carpet.... There is also the possability of needing to wake up the BCM. -------------
Posted By: ehammond
Date Posted: December 10, 2006 at 7:12 AM
Dome light supervision...where would this go? Can it be used to wake up the car? Thanks
Posted By: Mike M2
Date Posted: December 10, 2006 at 8:14 AM
I've always used Kartuneman's suggestion, the BLACK/ blue wire going to the domelight itself(tho i think it is a negative). You can get it in the drivers kick on 4 doors, at the GEM on 2 doors. Like him i also get locks in the drivers kick, you gotta get under the carpet and the insulation to find them...
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Mike M2
Tech Manager
CS Dealer Services
Posted By: ehammond
Date Posted: December 10, 2006 at 12:46 PM
Okay, I'm in the drivers kick panel, and found the power lock/unlock wires, but there is a problem... The blue wire coming out of the Viper for the lock (or unlock) seems to be constantly energized! When I tap into the blk/yel with this wire, it triggers the unlock (and disables the unlock switch in the door). When I tap the blue wire into the blk/red, it locks the door, and disables the lock button on the door switch... WTF! Please, someone help... I thought, well maybe both need to be hooked up for it to work, but no....tried that and nothing. Seemed like the blue wire was constantly sending a signal to the unlock. Does the door trigger have to be hooked up for the door locks to work??
Posted By: ehammond
Date Posted: December 10, 2006 at 12:48 PM
I also tried tapping into the blk/blu for the trigger at the central locking module...tried every plug that had a blk/blu, and nothing. When I opened the door with the car armed, it didn't trigger a door opening warn away...
Posted By: ehammond
Date Posted: December 10, 2006 at 1:15 PM
Update: Well, turns out it's my fault (I think) I had the door lock plug, plugged into the bit writer port, which is the exact same plug config as the lock plug...DAMN!! But now my remote has gone outta sync with the unit in the car, so I'm trying to re-sync and test...pffff AGGRIVATION!
Posted By: ehammond
Date Posted: December 10, 2006 at 2:29 PM
It will NOT sync...I've pressed the button 70 times! The unit in the car is working fine...doors lock on start, unlock when I turn off the car, remote start works fine... Everytime I hit lock button on the remote, it transmits, but then I get a flashing anntena icon telling me it's out of sync (or not recieve an acknolegement from the car) Did I screw it up somehow? It worked with the lock/unlock plug in the bit writer port!
Posted By: Mike M2
Date Posted: December 10, 2006 at 3:29 PM
Try programming the remote to auto learn 4 times. Key on, door open, pressvalet buttton and release, hold button in while pressing lock button on remote. Repeat 4 times... ------------- Mike M2
Tech Manager
CS Dealer Services
Posted By: ehammond
Date Posted: December 10, 2006 at 3:33 PM
Mike M2 wrote:
Try programming the remote to auto learn 4 times. Key on, door open, pressvalet buttton and release, hold button in while pressing lock button on remote. Repeat 4 times...
Okay, thanks...but I don't have the door triggers hooked up yet :( With it unhooked, would the unit think I just opened the door, or would it think the door is closed? I guess I can ground out the door pin lead momentarily...
Posted By: ehammond
Date Posted: December 10, 2006 at 3:50 PM
That didn't work...perhaps grounding the door trigger isn't doing the trick? The remote is actually recieving a signal from the car (RX) every 20 seconds or so... If I hit the 'lock' button, it shows a TX, and then after 3 seconds, I get a flashing anntena icon, and 3 sets of two beeps from the remote...
Posted By: ehammond
Date Posted: December 10, 2006 at 4:06 PM
Aha!! We got 'er! The remote took the auto learn... Turns out the order was backwards...door needs to be open, THEN the ignition turned on to initiate the learn sequence... Thanks for your help guy. Now, to just get the door trigger hooked up as well as the trunk light for 'zone 3'
Posted By: ehammond
Date Posted: December 17, 2006 at 10:02 AM
I have my Viper hooked up now, in my '02 Focus... When I arm, all is good...if I open the trunk, or a door after arming, I get an alarm (although it doesn't show up on my pager) BUT, when I disarm, my pager tells me both the door and trunk have been violated...why is this? TIA
Posted By: ehammond
Date Posted: December 17, 2006 at 10:20 AM
I programmed the remote to recieve pages...and the proper notification is displayed, but why is my remote telling me all the zones have been violated when I remote disarm?
Posted By: 05gt
Date Posted: December 17, 2006 at 3:16 PM
do you have an ignition wire hooked up ,cause it seems to me that it isn't resetting itself which model viper is it
Posted By: ehammond
Date Posted: December 17, 2006 at 5:26 PM
Actually, it might of fixed itself? Or it had something to do with not having the siren hooked up? Regardless, the Viper 791xv is working flawlessly now! :) It resets itself (I guess), the door/trunk sensors are working perfectly, and without setting off the alarm when the car pulses the door pins after going to 'sleep' (diode isolated) All that is left to do it to get and program a 555s and get some large washers for the hood pin mount... I want to thank everyone who helped! Couldn't of done it without ya! 05gt]< wrote:
P>do you have an ignition wire hooked up ,cause it seems to me that it isn't resetting itself which model viper is it
Posted By: ehammond
Date Posted: December 19, 2006 at 4:53 PM
I need to trigger a latch relay using my Viper when I remote start...and preferably only when I remote start. The thing is, I need both a switch ground and a switched positive, because the relay uses the same terminals to reset, only reversed polarity.... The parking light output isn't ideal...is there anything else? Thanks
Posted By: Big Dog
Date Posted: December 20, 2006 at 1:43 PM
I'm not sure I understand completely but you can use the Blue STATUS wire which is connected in the XCRS relay pack in a four pin connector. This will give you a constant ground out the instant you press the button which remote starts the vehicle and will remain ground out until the remote car starter shuts down. If you're not using the Pink/White second ignition output then you can use it for your B+ for your relay. It works in the same manner as the Blue Status mentioned above. Using these two will give a ground and a positive activated via remote start. ------------- Prepare your future. It wasn't the lack of stones that killed the stone age.
Posted By: ehammond
Date Posted: January 03, 2007 at 4:56 PM
Car: SVT Focus System: Viper 791 The heavy green wire coming from the satelite relay box is for killing the starter when the system is armed, correct? The install instructions say to splice in on the 'key side' of the starter wire... This is where I'm lost. So, the same wire that the relay pack is spliced into for energizing the starter, cut that wire on the side leading to the key tumbler, then butt join that open end into the green anti-grind wire from the relay pack? Is it that simple? TIA
Posted By: ehammond
Date Posted: January 08, 2007 at 6:49 AM
bump
Posted By: ehammond
Date Posted: January 13, 2007 at 7:56 AM
ttt?
Posted By: captainzab
Date Posted: January 13, 2007 at 10:07 AM
That is correct, cut the starter wire inhalf.
Butt connect the green wire (of xcrs packet)to the keyside of the starter side. And the purple wire (of xcrs packet) to the other side/starter side.
This is your antigrind when you remote start, and your starter kill when you arm your car.
-------------
Note: You Always Dont Get What You Pay For.
Posted By: ehammond
Date Posted: January 18, 2007 at 3:51 PM
...so when the car is disarmed, the green and purple wires are basically connected inside the xcrs, correct?
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