AFM Web

Go Back   Ford Mustang Forums > Mustang Forums > Mustang Tech > Audio & Alarms
Welcome to AllFordMustangs.com. We look forward to you registering on our forum and making your first post.
 
Lounge | Mustang Tech | Power Adders | Drag Racing | Road Racing | Audio & Alarms | Show & Shine | Tech 
 

Reply
 
Old 06-12-2006   #1 (permalink)
joey_corleone82 is offline Rookie


Joined: Mar 2006
Posts: 2 Threads: 2
Michigan
Angry Help with alarm wiring

hello, I had a viper 791 alarm system put into my 2001 mustang gt. the clowns at the alarm place couldn't get anything right. It was a six week headach to get all the features working. Anyways, after many many trips back everything works except then I get a false trunk trigger alarm every 30 minutes. I am a technical guy so finally I said screw this and started poking around myself.

I had the same 30 minute problem on the doors at one time and I remember they used diode isolation to fix it so I took a look. What they did is ....

There is a yellow/black factory wire coming out of a harness.....they cut the factory wire in half and put a diode in there.....then connected that to another diode in such a way that the diode cathodes are facing each other....then off of that is the connection to the door alarm input.

My question is, I am pretty upset that factory wiring was cut in half here. Was there a better way that could have been done? Is there a way I can put the diodes in for the trunk without cutting the trunk factory wire in half as well ?
joey_corleone82 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 06-12-2006   #2 (permalink)
albroswift is offline Made Member

4.6L Member


Joined: Feb 2006
Posts: 447 Threads: 29
 albroswift's Country Flag  View albroswift's 8 photos  View albroswift's HomePage
Seattle   Washington
Default

Quote:
Originally Posted by joey_corleone82
hello, I had a viper 791 alarm system put into my 2001 mustang gt. the clowns at the alarm place couldn't get anything right. It was a six week headach to get all the features working. Anyways, after many many trips back everything works except then I get a false trunk trigger alarm every 30 minutes. I am a technical guy so finally I said screw this and started poking around myself.

I had the same 30 minute problem on the doors at one time and I remember they used diode isolation to fix it so I took a look. What they did is ....

There is a yellow/black factory wire coming out of a harness.....they cut the factory wire in half and put a diode in there.....then connected that to another diode in such a way that the diode cathodes are facing each other....then off of that is the connection to the door alarm input.

My question is, I am pretty upset that factory wiring was cut in half here. Was there a better way that could have been done? Is there a way I can put the diodes in for the trunk without cutting the trunk factory wire in half as well ?
Same problem when I had A Python installed. Alarm self check triggering alarm every 30 min. Car Toys had it back 4 times, replaced entire system, then I had them remove it. Went to Magnolia HiFi and had them install a Clifford (same alarm, different name) Same problem. Multiple trips to Magnolia, no fix. Not a Diode problem (as with doors). Also noticed intermittently trunk light not working. I doubt there is anything the installer can do. Disconnected trunk. Need a pin in trunk not attached to light (don't let them tell you you can't pin trunk). Same alarm on truck using pin, works fine. If you ever find Fix, Please post!!!
***Side note, when having a multi-zone installed, make sure they put the shock sensor and the proximity sensor on different zones, lazy bast**ds put both on zone 2, nothing on zone 4, so dialing in sensitivity settings and troubleshooting false alarms is a pain in the butt.
__________________
“If it rolls, floats, flies or shoots, runs on gasoline or gunpowder, goes fast or shoots a big bullet and makes lots of noise, thus producing torque and recoil — it’s cool.”
--Sterling Moss, Society of Torque and Recoil
OhFour GT Drop top * Kenne Bell 9PSI I/C * Ford Racing 03 Cobra aluminum radiator * Full length welded subframe connectors * Couple of AutoMeter gauges, Grill delete kit * ZR3 Active laser countermeasures front and rear * Escort X50 blue radar detector *Clifford RSX3.5 Alarm
albroswift is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 08-23-2006   #3 (permalink)
radioman is offline Rookie


Joined: Jun 2006
Posts: 12 Threads: 4
 radioman's Country Flag  View radioman's HomePage
Weedsport   New York
Default

You have to cut the factory wires and diode isolate from GEM module because GEM falls asleep after 30 min. Then you have to diode isolate door triger wire or trunk triger wire other wise every thing feed back and it will false just like with your trunk


http://www.directechs.com/techtips/p...htips/1076.pdf


check out the link came rite from DEI web page
radioman is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 08-23-2006   #4 (permalink)
albroswift is offline Made Member

4.6L Member


Joined: Feb 2006
Posts: 447 Threads: 29
 albroswift's Country Flag  View albroswift's 8 photos  View albroswift's HomePage
Seattle   Washington
Default

Thanks for the info! My doors are done with diodes way but I don't know about the trunk. I'll check this weekend and let ya'll know.
__________________
“If it rolls, floats, flies or shoots, runs on gasoline or gunpowder, goes fast or shoots a big bullet and makes lots of noise, thus producing torque and recoil — it’s cool.”
--Sterling Moss, Society of Torque and Recoil
OhFour GT Drop top * Kenne Bell 9PSI I/C * Ford Racing 03 Cobra aluminum radiator * Full length welded subframe connectors * Couple of AutoMeter gauges, Grill delete kit * ZR3 Active laser countermeasures front and rear * Escort X50 blue radar detector *Clifford RSX3.5 Alarm
albroswift is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply



Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with Fog Light Wiring Problem dtwwest 2005+ Mustang V6 Tech 2 05-30-2006 12:57 PM
66 Mustang Under Hood Wiring Rascal M Classic Tech 2 05-30-2006 07:39 AM
2005 Gt Seatbelt Alarm Disable b&k 2005+ Mustang GT Tech 7 05-22-2006 09:36 AM
hellp with wiring probloms j_w_r_20 5.0L Tech 3 05-02-2006 05:15 PM
Alarm? Audio & Alarms 5 04-27-2002 08:04 AM

sponsors

Mustang Photos
Add to Favorites    Link to us    Contact    Directory    Site Rules    Archive    Terms of Use    Privacy    Top Sites    RSS    Meet Our Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2010 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110