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2005 dakota u1120 code

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=136257
Printed Date: May 15, 2024 at 6:47 AM


Topic: 2005 dakota u1120 code

Posted By: emanuelb85
Subject: 2005 dakota u1120 code
Date Posted: March 10, 2014 at 10:07 AM

Hi
I installed a viper 5706v remote start and alarm on my 2005 dodge dakota and after installing I keep on getting this u1120 code. Everything works fine with the alarm and starter. I'm thinking it's because when the truck is started not all the ignition components are on and maybe I missed an ignition wire or accessory wire that I should of hooked up. Thanks for the help.



Replies:

Posted By: chev104275
Date Posted: March 10, 2014 at 12:26 PM
Did you power all the ignition and acc wires ?

Ignition      pink/lt. green      +      ignition harness
       
Second Ignition      pink      +      ignition harness     
                
Accessory      dk. blue and pink/white      +      ignition harness      
 
Second Accessory      pink / YELLOW (x2)      +      ignition harness       

Keysense      PURPLE / tan      -      ignition harness

Also on these trucks of it has a factory alarm you will need to power keysense while remote started

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 10, 2014 at 12:39 PM
For the ignition I only wired the pink light green wire.




Posted By: chev104275
Date Posted: March 10, 2014 at 12:46 PM
I would power up the rest. I always power all ignition wires the same as the key would

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 10, 2014 at 12:52 PM
Yeah I think your right. Now the other ignition wires can I splice them to the same output on the alarm? And can I do the same to the accessory ones, can they be spliced to the same output on the alarm? I went off a bulldog security diagram and it said keysense was not available on this vehicle and that's why I didnt hook that one up.




Posted By: chev104275
Date Posted: March 10, 2014 at 1:03 PM
Never splice circuits together there separate for a reason. The Viper should have low current negative outputs to control relays to add more ignition and acc circuits to the remote start.

If you don't know how to wire the relay. check out the relay section on this site.

As far as key sense I believe it's only needed when the truck has a factory alarm. What will happen is the truck will start and run but while it's running the alarm will randomly go off.

Any other help don't hesitate to ask

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 10, 2014 at 1:07 PM
What if I diode isolated them? Or is that not recommended.




Posted By: chev104275
Date Posted: March 10, 2014 at 1:11 PM
I wouldn't the ignition and acc are high current.

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 10, 2014 at 1:50 PM
Thanks for the help. I'm going to do that and hopefully that does the trick.




Posted By: emanuelb85
Date Posted: March 22, 2014 at 7:38 PM
Just wanted to give a quick update. After hooking up ALL the other ignition and accessory wires everything works great and I no longer get that engine error code.




Posted By: chev104275
Date Posted: March 22, 2014 at 8:35 PM
Glad to hear it worked out

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 24, 2014 at 9:08 AM
Today I went to start it and my battery was completely dead. Im testing the battery to see if it went just happened to go bad, but I'm worried there might be something draining the battery when its not on. Any thoughts?




Posted By: chev104275
Date Posted: March 24, 2014 at 9:21 AM
After having the battery and charging system tested if both check out. I would do a parasitic draw test to see what your amperage draw on the truck is.

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If i Can't Install it    I Don't need it   Joe




Posted By: emanuelb85
Date Posted: March 24, 2014 at 10:51 AM
On the remote start harness I hooked up the pink/black relay input to a constant 12v. I think this may be whats causing the problem. I believe that should have been connected to an ignition on 12 v source.





Posted By: chev104275
Date Posted: March 24, 2014 at 4:26 PM
H3/2 RED / white should go to 12v that's the flex relay input

What are you using the flex relay for ?

H3/7 and H3/8 will vary depending on what it's being used for

menu 3 option 8 you can choose what you are using the flex relay for.

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If i Can't Install it    I Don't need it   Joe




Posted By: harryharris
Date Posted: March 25, 2014 at 11:48 AM
To the best of my knowledge only some Toyotas and Peugeots in Europe need that pink/black. Disconnect it.

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Test before boxing up.




Posted By: emanuelb85
Date Posted: March 25, 2014 at 5:53 PM
Yeah I disconnected the pink black one and that was the one drawing the current. That fixed it.





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