2009 subaru legacy remote start
Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=123240
Printed Date: July 06, 2025 at 11:57 PM
Topic: 2009 subaru legacy remote start
Posted By: ashah000
Subject: 2009 subaru legacy remote start
Date Posted: August 24, 2010 at 8:02 PM
Looking for wiring diagram for 2009 legacy 2.5i limited.
I found this for a legacy GT, I am assuming it is the same just wanted to make sure.
https://www.the12volt.com/installbay/forum_posts.asp?tid=116240
Also, any recommendations on remote start systems? Looks like I will have to use the 556U bypass.
Thanks!
Replies:
Posted By: kreg357
Date Posted: August 24, 2010 at 10:04 PM
2007 thru 2009 are the same. Bulldog Security web site lists your car: Here is the link : https://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.asp
A lot of the wires can be found in the BIU that is below the steering column. Key in the box is about it unless you have connections to a dealer scan tool, then there are some transponder bypass units that are available so you won't lose a key. ( iDatalink ADS-RNG SUB or Fortin PATS-Subaru .)
Any quality remote start is a good choice. Proper installation is the key. Most people go by remote transmitter. One Way, Two Way, LCD, range, price, etc. All depends on what is important to you. Just remember, the big names ( DEI Viper, Compustar, etc ) do not give warranty or support to DIY installs.
For a solid, one way, remote start with good range and features that is reasonably priced, check out the U1272 Pro from Ultra Start at https://www.ultrastarters.com/products_pro.html You can download the install & owners manual to get an good idea its capabilities. Shop around at the local install shops, too.
------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 25, 2010 at 5:13 AM
Thanks!
I was looking into Ultra Start, I installed one of them on my Eclipse back in the day. Better range than I needed.
I was actually looking into some of the Ultra Start 2-ways.
I will be installing it myself, the eclipse was easy this can't be much harder. The whole bypass thing will be different. (Unless I can find a shop to do it at a reasonable price which is unlikely.
Posted By: kreg357
Date Posted: August 25, 2010 at 9:59 AM
Two way remotes use batteries faster. The Ultra Start U3270 FM comes with one 2 way remote and one 1 way remote. The 1 way remote has no LED to signify a button press...
The Key in the box bypasses are usually very easy to install. Just make sure the antenna loop is wrapped the correct number of times around the ignition cylinder in the correct spot and securred in place well. Also make sure the key is in the right spot in the box and securred to prevent shifting.
Good luck. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 25, 2010 at 6:02 PM
How fast are we talking for batteries?
Also where could I find how many times to wrap the coil what is the correct spot? Will the bypass unit have instructions that are car specific?
Also, this is MT, so am I going to need to wire up a relay for clutch? (I just disconnected the harness on the eclipse, yeah I was lazy)
Posted By: kreg357
Date Posted: August 25, 2010 at 8:02 PM
1. Batteries depend on how much you use it. The one ways last me over a year. The 2 ways might go only a few months.
2. The instructions for the 556U are pretty good. The antenna loop is already formed for you. There are some strapping choices.
3. If the car is a manual trans, you want to get a remote start system specifically designed for it. you tube has a couple of pretty crashes of M/T cars with auto only remote starts installed. Ultra Start has some remote starts for manual trans, they have the yellow colored control units. If you can afford a little more, the Compustar FT6200-S is manual safe and allows easy flexibility with many remote choices. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 25, 2010 at 9:13 PM
Thanks! Yeah I know to get a MT version. I had a MT version on my eclipse and had to double tap the brakes to get the car in reservation mode. I am assuming the compustar works the same way?
Posted By: kreg357
Date Posted: August 25, 2010 at 9:51 PM
The Compustar ( CM5x00 and CM6x00 ) watches the emergency brake. With the car running, put on the emergency brake. The compustar sees it and turns on the parking lights. With the car in neutral, let the clutch up and take your foot off the brake pedal. Turn the key to off and remove it, the car engine continues to idle. Exit the car. After the last door is closed, the Compustar will lock the doors and shut off the engine. It is now in Reservation Mode. The remote start must be installed in Tach mode. If any door, the hood or the trunk is opened, reservation mode is cancelled.
------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 28, 2010 at 9:10 AM
So here is what I am currently thinking about buying:
Compustar FT6200S
Compustar RF2W900 Remote and Antenna Kit
556U
Will all this work well? And will I need a factory alarm bypass?
I was really trying to find a 2w standalone remote start unit from ultra start either 3266M or 3271m, but I can't seem to find them online. I will have to try calling a dealer and see if they will sell it to me without install.
Posted By: kreg357
Date Posted: August 28, 2010 at 10:04 AM
The Compustar FT6200-S is a nice unit but because of its extra features a little more involved to install. It does have a (-) Start output that will make bypassing the clutch easier. Additionally, it does not come with an install guide, just a fold out wiring schematic and a programming options listing. Look for and download the CM5x00 or CM6x00 install guide. You will need that to program the remotes and do the Tach Learn process. You will need a 30/40 Amp SPDT relay for the second ignition wire and some blocking diodes for the door, hood & trunk triggers.
There is a Factory Alarm Disarm wire ( FACTORY ALARM DISARM YELLOW/RED (-) in DRIVERS KICK PANEL or BIU, (GRAY, 35-PIN PLUG) ) that the Compustar can use to turn off the alarm.
Yes, the manual Ultra Start models are hard to find and the 2 ways are even harder.
------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 29, 2010 at 8:37 AM
What do you think about the Bulldog deluxe 500 remote start system? I know it probably doesn't even come close to comparing to compustar or ultra start, and the brand is well ehh..
The reason I ask, a buddy of mine has one brand new, never opened that he bought for his dad's truck and is not using it now. He said he would sell it to me for $40. And well for that price, if it starts my car from a decent range I don't think I can complain.
Posted By: kreg357
Date Posted: August 29, 2010 at 10:40 AM
I am not familiar with the Deluxe 500 model. I have used their RS1100 and RS1200 models. ( I installed a RS1100 in a '06 Caravan that I used in field service work. Made 10-15 stops a day for 114,000 miles. Never even burped and I used it so much I had to replace the remotes' battery every 4 months. ) While they do have limited programming options, if they are installed properly they work quite well. The early models had a cheap remote but the new style is good. My main complaint was the tach sensing circuit. It had a hard time learning a single fuel injector or individual coil. The Deluxe 500 might be different/better. Additionally the Deluxe500 is an alarm with that extra circuitry to deal with. ( Your car already has a factory alarm. ) On the plus side, it is manual safe. On the negative side, it has options for "Oil Pressure" sensing. Most people on this forum recommend steering clear of any remote start systems that use that method to determine if the engine has started. Bulldog does have a Tech Support department to support the DIYer. The wait time can be long but the info is usually sound. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 29, 2010 at 12:28 PM
Hmm. Thanks, I think I might just go with that.
The deluxe 500 is not a alarm also. Just a remote start/keyless.
It does have options for oil pressure sensing, however it does also have tach sensing. So if I just use the tach sensing option I should be good then right?
Thanks for all your help again! You have been VERY helpful.
Posted By: kreg357
Date Posted: August 29, 2010 at 2:17 PM
I stand corrected. The Deluxe 500 is only a R/S & keyless entry unit. The door trigger inputs and the Alarm Programming section fooled me ( the manual is hard to follow ). The door triggers are required for a manual trans install.
The Deluxe 500 requires Tach or Oil Pressure sensing in manual trans mode. The Tach sensing mode says it needs a 1 to 6 volt AC signal. You should be able to get one at the coil pack.
Bulldog also makes an "Key in the Box" bypass. The Model 791. I used one on a 2010 Forester recently with no issues. You might find that less expensive than the DEI 556U. That way the entire setup would be Bulldog and allow for easier support from them if the need arises.
Good luck. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 29, 2010 at 7:28 PM
Yes it is very hard to follow. I got confused again if it did have an alarm after I posted that.
So besides the R/S and bypass unit what else will I need? (just trying to have everything before I attempt this)
(1) SPDT Relay
Diodes? (Will I need any for the door locks or parking lights or anything)
Posted By: kreg357
Date Posted: August 29, 2010 at 8:15 PM
It appears that the Deluxe 500 has 2 ignition outputs which matches the Legacys needs. No relay needed for that.
If you want the R/S FOB to pop the trunk, you will need a relay and do a (REV) on the Trunk Release wire ( WHITE/ Black at BIU ).
Everything else looks to be covered / compatable. I would get some 1N4001 diodes for the door / trunk / hood trigger input to the Deluxe 500.
And of course an extra working ignition key. I noticed some Bulldog 791's on FleaBay for $10...
And a soldering gun, solder, quality electric tape, heat shrink tube in various diameters, tie wraps in various lenghts, a DMM, a computer safe LED test light / probe, trim tools, flashlight, etc, etc, etc....
Here is a link to AudioVox for another wire guide : https://techservices.audiovox.com/Login.aspx Sign up is free. Remember these are only guides and all wires should be verified before making any connections. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 29, 2010 at 9:50 PM
Awesome! Looks like I am going to have a fun Saturday. Yeah I will verify everything.
I guess I am still confused as to when I need to use a diode?
Will I need a diode if i tap into a wire at my keyless/factory alarm unit?
Posted By: kreg357
Date Posted: August 29, 2010 at 10:12 PM
The diodes are to isolate one circuit from another. In the case of 4 individual door trigger wires in the car and you connect them all to one input wire from the remote start, the diodes prevent one door opening from being seen by the car as all doors opening. ( If your car has a dash display that can show a single door open, if you connected them all to one wire without blocking diodes it would cross over to the other wires and confuse the car, showing all doors open.) Here is a diagram ( and a better explaination ) : https://www.the12volt.com/diodes/diodes.asp You will need them for the remote starts (-) Door Trigger input. Your car has (-) negative triggers. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 30, 2010 at 6:34 AM
OK I understand that much of it (I think), however, for the reservation mode on this it shuts the car off when the last door closes. Now since the bulldog only had one door pin wire and I must hook 4 doors to this. How will the remote start unit know it is the last door. Even if I use diodes, wouldn't it just see a - trigger and shut off after the first door closes.
Unless I wire all 4 doors in series then maybe it will need all 4 doors closed to make the connection?
Posted By: kreg357
Date Posted: August 30, 2010 at 9:54 PM
If you find, as Bulldog Security wire guide suggests, there is a All Door Trigger ( DOOR TRIGGER BLUE/WHITE (-) in DRIVERS KICK PANEL or BIU, (GRAY, 35-PIN PLUG), PIN 19 ) and find, as AudioVox suggests, a trunk trigger ( Trunk Trigger LIGHT GREEN/ BLACK (-) BODY INTEGRATED UNIT ) you can diode isolate and combine those to wires as your Deluxe 500 (-) Trigger Input. The goal is to cancel Reservation mode if anyone enters the car.
As far as seeing the last door closed, the door(s) / trunk wires are combined into an OR Gate ( computer logic ). Any monitored signal being (-) will qualify the output ( and prevent the engine shutdown and Reservation mode entry ).
Test the All Door Trigger with a DMM and verify it signals for any & all doors. ------------- Soldering is fun!
Posted By: ashah000
Date Posted: August 31, 2010 at 9:28 PM
So just looked at some wiring diagrams for my car. It seems that for a manual transmission I have a neutral safety switch. Sweet!
https://tinypic.com/r/rc1pnr/7
Posted By: ashah000
Date Posted: September 04, 2010 at 7:14 PM
I have most of it wired up however do i need to use a 1-6V coil input. The wordage they use is a little confusing. I tapped into my #1 fuel injector, and I am hoping that will work..?
Posted By: kreg357
Date Posted: September 04, 2010 at 7:46 PM
According to the install guide, it says it will learn an indvidual coil, so a Fuel injector should be OK. Follow the guide on page 30 for Tach Learning. It will signal if the signal is learned. If not locate the main coil pack ( top of engine, mounted to the intake manifold ) and find a tach signal there using a DMM.
------------- Soldering is fun!
Posted By: kreg357
Date Posted: September 04, 2010 at 8:01 PM
Looking at the Neutral Position Switch in your diagram, while it will show that the transmission is in neutral, I believe you will still have to bypass the clutch switch, B106 Pin 1 to Pin 2, to energize the starter relay.
------------- Soldering is fun!
Posted By: ashah000
Date Posted: September 05, 2010 at 10:47 AM
Yes I still have to bypass that. i am just using the neutral switch to add an additional safety factor
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