problem with 791XV
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=65415
Printed Date: April 29, 2024 at 8:50 AM
Topic: problem with 791XV
Posted By: Atl_monte
Subject: problem with 791XV
Date Posted: November 01, 2005 at 10:15 AM
I have an 791XV installed on my 88 Monte SS, but for some reason it seems that the sarter kill is active regardless if the alarm is armed or not...I was driving the car got out came back tried to start the car and everything works it just wont start, so I started testing and I have power coming off the purple wire from the steering column but none coming from the DEI XCRS (Extreme Capacity Relay Satellite) what could be causing this? I have tried arming and disarming the system but still nothing...
Replies:
Posted By: Atl_monte
Date Posted: November 02, 2005 at 6:42 PM
anybody got any ideas?
Posted By: extreme1
Date Posted: November 02, 2005 at 7:23 PM
Automatic Engine Disable may be turned on, you may also have a stuck starter kill relay.
Give the XCRS a whack and see if that works.
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Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta
Posted By: mo12v
Date Posted: November 02, 2005 at 7:33 PM
Make sure you don't have the GREEN and PURPLE wires reversed
Page 16.....Heavy Guage Connector
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: Atl_monte
Date Posted: November 02, 2005 at 9:41 PM
it use to work with no problem I've been driving the car for like a few months then Saturday I cut the car off and now it wont start.....
Posted By: redpeppers
Date Posted: November 02, 2005 at 10:29 PM
did u check to see if u have blown the 30 amp fuse on the red wire off the relay pack? also is it engaging the ignition wires and accessory wires?
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Where theres is a wire there's a way.
Posted By: Atl_monte
Date Posted: November 02, 2005 at 10:42 PM
yea the ignition and accessory wires appear to still be active, since my radio, and everything else in the car still works like normal, no I didn't check the 30 amp fuse off the relay pack, I just finished inspecting and double checking the wires off my steering column just cleaned up the wiring a bit and retaped them....but the problem has not been fixed yet...where is this 30 amp fuse located? and if it is blown what may have caused it.....
Posted By: Atl_monte
Date Posted: November 02, 2005 at 11:16 PM
ok I located the two 30 amp fuses for the relay pack both are still intact....
Posted By: Atl_monte
Date Posted: November 02, 2005 at 11:36 PM
I've just checked current on that relay bank, there is power on all wires that supposed to have power, there is power on the green wire(starter input-from key) when I try to start the car but none coming back on the purple wire(starter output-to starter).....
Posted By: extreme1
Date Posted: November 02, 2005 at 11:42 PM
whack the relay pack, I bet it's stuck
been ther done that.
-------------
Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta
Posted By: Atl_monte
Date Posted: November 02, 2005 at 11:58 PM
I'll try that I jsut removed it....is this part covered by DEI? because I have to disassemble my car to deal with these type of alarm problems, so it would be very inconvient if this was to be an ongoing thing......
Posted By: lathan
Date Posted: November 03, 2005 at 12:12 AM
depends on where you bought it and if you installed it yourself if your not a certified installer, or an installer for the dealer it came from. Try unplugging the ribbon harness that comes from the brainbox that goes to the sat. relay pack. give it a few just to see if disengaging all signal and power helps, and if that dont work slap it down on its top. I've had four of them do this out of probably 90 or 95. I have only had to whack one though. I would definitly get it replaced if at all possible. good luck.
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Lathan Hites
"I'm sorry, without a credit card I'll be requiring a stool sample"
Posted By: Atl_monte
Date Posted: November 03, 2005 at 12:21 AM
I bout it from an authorized dealer, but had an authorized dealer from another place install it, but I ended up redoing the whole install because the guy did a crappy job...hell as much as this system cost they should replace it no questions asked obviously quite a few are defective, why I had to get one is beyond me.....but my XCRS does have that toasted amp smell to it.....and I've tried disconnecting and all that stuff haven't tried it since I've been sitting here pissed waching it in my hand and varous other things....but like I said if it does work it would just prove that its the problem, I wouldn't feel confident to trust it, for anything other than temporary.....
Posted By: Atl_monte
Date Posted: November 03, 2005 at 12:36 AM
quick question...how can I add another starter interupt to a 791? what I plan to do is make a jumper wire for this XCRS....but I wanted an AUX stater interupt anyway....how much might I look to pay for a new XCRS if they don't replace it?
Posted By: redpeppers
Date Posted: November 03, 2005 at 12:37 AM
check with a DMM ...there is a 4pin harness that plugs into the relay pack....there is a purple wire that is common with the negitive start activation off the ribbon cable.....the purple in the 4pin harness should show negitive trigger during remote start.....NoTe: if this wire see's ground.....the starter will crank.....something to try :-) ------------- Where theres is a wire there's a way.
Posted By: Atl_monte
Date Posted: November 03, 2005 at 12:42 AM
yea I notice the spot for the 4 pin harness plug along with the 7 pin plug....but I only run the 7 pin harness....might explain why I've never been able to use my remote start
Posted By: redpeppers
Date Posted: November 03, 2005 at 12:45 AM
no the 4pin harness is only for extra accessory...if u dont have it .....disregard what i said....but u can check the purple wire off the ribbon harness and see if it see's a negitive trigger during remote start....if it doesnt then u may have a bad brain or the 7pin harness may be loose.
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Where theres is a wire there's a way.
Posted By: Atl_monte
Date Posted: November 03, 2005 at 12:50 AM
the alarm still works(arm/disarm/pop trunk etc), but I can't really test for remote start because I've never programmed the remote start....I might have that harness still around....but do I have to have that 4 pin harness to add an AUX starter interupt
Posted By: redpeppers
Date Posted: November 03, 2005 at 12:59 AM
"but I can't really test for remote start because I've never programmed the remote start....I might have that harness still around"...this doesnt make since .....what harness? the 7 pin harness is installed ....and disregard the 4 pin harness///////
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Where theres is a wire there's a way.
Posted By: maxspeeds
Date Posted: November 05, 2005 at 7:26 PM
I've had the exact same problem. Here is what I decided to do: https://www.the12volt.com/installbay/forum_posts.asp?tid=64532&KW=maxspeeds This will eliminate the starter kill aspect of the alarm, however you no longer have the anti-grind safegaurd feature. You will still be able to remote start your car. Just remember not to turn your key past the second click (II) after you remote started because this will damage your starter since your engine is already running. And, yes you can install another starter kill on the 791xv. It involves connecting the orange wire (H1/1) on the primary harness to an extra relay. Or, better than a starter kill, you could use this orange wire and connect it to a relay to interrupt your electronic fuel pump.
Posted By: Atl_monte
Date Posted: November 09, 2005 at 11:40 AM
thats what the problem was teh XCRS removed it my local DEI dealer swapped out no probs and works fine now...my car has a engine driven fuel pump, though I keep thinking about switching to an electric one....but thanks for the help everyone I'm still working on installing an AUX starter kill....
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