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Viper 791xv Remote Start Fail


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pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: March 29, 2006 at 9:19 PM / IP Logged  

yes, I had a look at the bonnet pin and as you guys prob already know it goes ground when opened. So me just leaving the wire sitting in the engine bay all tapped up will not be stopping the remote start process.

Next thing to check this afternoon is the brake wire, not sure how i could stuff this up. If i am getting error=6 does it have to be either the brake or the bonnet pin. can it be anything else?

Also, i mentioned I had cut the antenna off the 556U and used the standard 2 wire WRX antenna. Do you know if this works in a wrx? Or should i reverse that? (only after checking the brake wire, then unpluggin the 556U and using a key)

thankyou all for the help

Another issue i have is, I have found the Neutral position wire et the ECU. It gives 5v when in Neutral. How can i interface this 5v with the Neutral ground wire on the viper? I imagine using a relay but I am figgering i will need a 5v relay? (not 12v) can anyone point me to the correct relay please as I have looked locally in my town and can't find anything, nor helpful knowledge for that matter...

cheers

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: March 30, 2006 at 2:54 PM / IP Logged  
pracy wrote:

Next thing to check this afternoon is the brake wire, not sure how i could stuff this up. If i am getting error=6 does it have to be either the brake or the bonnet pin. can it be anything else?

Also, i mentioned I had cut the antenna off the 556U and used the standard 2 wire WRX antenna. Do you know if this works in a wrx? Or should i reverse that? (only after checking the brake wire, then unpluggin the 556U and using a key)

thankyou all for the help

Another issue i have is, I have found the Neutral position wire et the ECU. It gives 5v when in Neutral. How can i interface this 5v with the Neutral ground wire on the viper? I imagine using a relay but I am figgering i will need a 5v relay? (not 12v) can anyone point me to the correct relay please as I have looked locally in my town and can't find anything, nor helpful knowledge for that matter...

cheers

Bump

Thankyou!

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: March 31, 2006 at 12:46 AM / IP Logged  

also i should note that my turbo timer feature doesnt work either...

It sounds like I am missing a starter wire somewhere? do i need to run any wires to the starter etc?

I keep reading a "Starter Kill Relay" or something similar, I know there an option of running one on H1/1 loom. But are they talking about a different relay?

cheers

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: March 31, 2006 at 10:52 AM / IP Logged  

For the nuetral safety wire you should be able to hook that up directly to the Viper system. The Viper is looking for a ground on the wire and when there is a ground it will start. Wire in a relay for your nuetral safety and use this diagram. This will reverse the (+) nuetral position voltage that you have on the Subaru to a (-)...... just hope the 5 volts will trigger the relay.

On the subject of the vehicle not starting, cut your brake wire connection to the unit and then try to remote start it. If it stays running, then you have residual voltage on the brake line. You will need to wire in a relay like this.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: March 31, 2006 at 9:00 PM / IP Logged  

ok I found the hoodpin wire to be getting ground somehow. I cut that wire at the alarm brain temp to see if it helps...

The remote start now get the car to fire for 1 sec then dies striaght away. I check the LED flashs after a diog and it was Low or No RPM.

I changed it to volt sense with the LOW threshold. The car stills only run for 1 sec.

LED changed to 4 flashes= Transmitter shutdown or optional button. ( i dont have the button installed)

I am guessing the next best thign to check is the 566u. I will disconnect it, insert key and giv the remote start a go.

Does the key need to be turned or just left in OFF pos?

thankyou all + netZ for ya great help

its getting alot closer now!

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: March 31, 2006 at 10:49 PM / IP Logged  
I disconnected the 556U, Put the key in the ignition and used the remote start. It started great first time...
 
Do you know if the alternate antenna method works?, where you cut off the standard 556u antenna and join into the stock Subaru antenna loom.. this is the method we used.
 
should we try alternate method 2 or just re-join the 556u dei antenna and use that?
 
cheers, thankyou
Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
JWorm 
Platinum - Posts: 2,208
Platinum spacespace
Joined: December 11, 2002
Location: New Hampshire, United States
Posted: April 01, 2006 at 11:48 AM / IP Logged  
On my 2005 WRX STi I just used the antenna that comes with the 556U. I would suggest doing the same.
To interface with the Neutral Position Sensor wire at the cars ECU:
I would connect the cars NPS wire to the hood pin input on the remote start. The NPS wire shows a solid ground when in gear. The remote start will think the hood is open, and will not attemot to start the car. If you arm the alarm with the car in gear you will get an indication that the hood is open.
You will need to add in a diode coming from the hood pin, and another diode on the wire coming from the ECU to prevent the circuits from backfeeding into each other. I hope you understand how diodes work. Or you could just connect the NPS wire in the car to the hood pin input of the 791xv and not use a hood pin.
Do not try to have the NPS wire trigger a relay. It is not strong enough of a signal and you risk burning out that circuit in the car if you do.
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: April 01, 2006 at 3:23 PM / IP Logged  

thankyou for the reply.

On my 1999 aussie model, it appears i had to use the alternate method because I wasn't able to put the new 566U antenna infront of the stock wrx antenna. The install diagram of the 556U shows the antenna having to be placed in front of the stock one to function. How are you able to get the new one in front and to stay there?, or do you just wrap it around the ignition barrell behind the stock antenna?

I have the NPS worked out. netZ has helped me use a 1n400x series diode to protect the ECU using the hoodpin method...

thankyou for the help

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
pracy 
Member - Posts: 22
Member spacespace
Joined: February 09, 2006
Location: Australia
Posted: April 02, 2006 at 5:34 PM / IP Logged  

I reconnected the 556U antenna, I found aplace around the ignition barrell.

The remote start now works great!! thankyou asll for your help...

Nex thing to do is the door lock unlock.

How is this down easiest in a wrx?

cheers

Hers- 99' Silver WRX Sedan -3" xForce stainless turbo back + GFB BOF
His- 82 XE 351c 300+KW
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: April 02, 2006 at 5:56 PM / IP Logged  
pracy wrote:

How is this down easiest in a wrx?

LOCK (-) wire is a RED / white at the integrated module to the left of the steering column in the gray plug.

UNLOCK (-) wire is a yellow/red at the integrated module to the left of the steering column in the gray plug.

Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
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