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ground when armed wire problem


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mishi 
Member - Posts: 9
Member spacespace
Joined: February 28, 2009
Location: Trinidad and Tobago
Posted: February 28, 2009 at 5:19 PM / IP Logged  

Hi, Have a viper 300esp.

When I bought my car used, it was installed with this and also an EL scanner. However the person had it improperly wired and so i reconnected it to the orange ground when armed wire... which worked perfectly when I armed it.

Recently though I was asked by the former owner to bring the car to a LoJack specialist to remove their tracking system. When they did however, I noticed now that the scanner stays on whether the alarm is armed or not. It only shots off when the car is turned to the "ACC" section.

I unwrapped their work to check everyting and all the connections seem fine

So is my alarm module messed up?  I can' figure why the ground when armed wire CONTINUOUSLY is grounded whether armed or not...

mishi 
Member - Posts: 9
Member spacespace
Joined: February 28, 2009
Location: Trinidad and Tobago
Posted: February 28, 2009 at 5:22 PM / IP Logged  

Also should note that the car will start whether the car is armed or not and it carries the starter kill relay with

2 yellow wires

1 black (to starter)

1 orange (ground when armed)

1 green (to key)

howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: February 28, 2009 at 5:46 PM / IP Logged  
It does sound like a dead ground while armed. pm t&t, he works in T rinidad and Tobago, he might be able to help you. Armed output failure is usually down to a blown transistor in the unit.
t&t tech 
Platinum - Posts: 2,608
Platinum spacespace
Joined: October 05, 2008
Location: Trinidad and Tobago
Posted: March 01, 2009 at 9:23 AM / IP Logged  

there is the possibilty that they removed the ground input of the scanner to an accesory wire which would cause your no scanner on acc position and immediately switching on once the key is off (the accesory wire will see ground in the off position, which will shorten the life span of your scanner), if it's car search you're reffering to, the system requires use of the ground when armed wire, so it;s possible when they removed it they disconnected the input to your scanner. if the car starts whether armed or unarmed either two things, they dissconnected the orange wire from the relay also or they blew the output somehow during their removal procedure and they had to shift it to the accesory, and hope you did'nt realize your immobiliser was non-functional.

commit your way to jehovah and he will act in your behalf. psalms 37:5
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: March 01, 2009 at 10:05 AM / IP Logged  
Just thought of something else, the original set up would have required the orange wire from alarm to go to starter relay terminal 85 AND the black side of the EL panel, 1 yellow to ignition and 1 to alarm yellow from terminal 86, key side (green) to 87a and starter side (black) to 30. There would also have to be a diode across the relay to prevent coil on rush back the orange wire affecting the EL panel.  All these need checking and testing before any conclusions can be drawn.
t&t tech 
Platinum - Posts: 2,608
Platinum spacespace
Joined: October 05, 2008
Location: Trinidad and Tobago
Posted: March 01, 2009 at 10:41 AM / IP Logged  

howie i've seen the finished installs from the guys at car search hundreds of times, and i can tell you that my conclusion is based on that, they are far from pros when it comes to installing,  they tap everything from our alarm connections, so remove power from the alarm and voila, no tracking device, it's a shame the general public doesn't know how vulnerable the system is for the prices they're paying,and also the fact that in my four years i have never seen a relay from dei fail YET, i'm not saying they don', but what are the odds? unless again something went wrong during their removal process.

commit your way to jehovah and he will act in your behalf. psalms 37:5
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: March 01, 2009 at 12:20 PM / IP Logged  
I absolutely agree with you. Too many cooks etc, especially when some are no good.  I simply laid out what SHOULD be the case if correctly wired.  I think they've taken the black ground lead of the EL panel directly to ground and fed it from ACC rather than permanently.
mishi 
Member - Posts: 9
Member spacespace
Joined: February 28, 2009
Location: Trinidad and Tobago
Posted: March 01, 2009 at 9:38 PM / IP Logged  

Actually I had rewired the EL before the lojack uninstall. andI checked it again and all was where I originally installed it... (Red to 12V +) Black to Ground and Yellow to Orange wire.

I have a little knowledge on the wiring and nothing was moved. The relay wires are all where they should be connected... there was never any diode to begin with even before the incident. The yellow ground activated wire is directly on the orange wire out from the module harness... so i'm beginning to think it looks like my alarm has been screwed...

Yeah it was Car search... I wasn't too pleased when I took down the panel in the evo to see the mess that they did...

i am an idiot 
Platinum - Posts: 13,674
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: March 01, 2009 at 10:34 PM / IP Logged  
It may be an easy repair if you are willing to take the brain apart and are able to follow the traces from the pin that the orange wire is connected to. I need to know if it goes to a transistor (A 3 legged device) or an integrated circuit? What is the number on the part?
mishi 
Member - Posts: 9
Member spacespace
Joined: February 28, 2009
Location: Trinidad and Tobago
Posted: March 02, 2009 at 5:59 AM / IP Logged  
I'll check into it later today... right now the flu just decided to say "Hey lets get that mustard today!" So I'm out a commission for the moment.
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