I didn't know if you got that relay installed on that 2010 but I can post how I wired mine. I consider it pretty simple. But I did alot of research because this was nothing like a speaker or stereo installation. I will post some of the places I did my research hopefully it helps you or other people doing the exact same thing on thier Tacomas. I don't understand that wiring diagram from The12volt.com. at the bottom of the page is the way I wired mine. Works perfectly. Never give up hope I have been reading into this for 3 weeks now.
I installed a remote starter on my wifes 2012 Tacoma. After 3 weeks of researching how to install a unit like this I started the truck with the Ultra Start 1272 XR PRO
out of the box after making all of the connections. I researched correct way to do this by reading what others have done wrong, or right. I decided to make my first post on Tacoma World forums EVER !!!
This site has been such a great help to me, and I find joy in helping other people. If anyone has any questions I would be more than happy to try to answer them. I am not a best buy installer or anything, but I feel I did a better job than best buy because of how I installed it.
My system had an internal relay revert a wire to second ignition, by default say the if the battery ever went dead or what not. Well you could program the system to use that as a second starter wire as well. I didn't know if hooking a starter wire with the ignition wire from the start was going to work right, and if the battery ever went dead then that wire would revert back ignition only anyways
. So it was time fore me to learn how to Wire a relay.
The remote starter only has 1 starter wire so you need a relay to make 2 starter wires for the remote starter to operate correctly, and your vehicle as well.
In the search channel field just type in relays. There are 3 videos that will come up for moss. If you are trying to do one of these on your Tacoma I would advise learning what a relay is, and why you need it, and the most important thing HOW IT WORKS
Here I learned that a relay is just a magnetic switch with 1 prong grounded, another prong has 12 volts running into it, another prong has your starter 2 wire only connected, and the last prong has your starter 1 wire from your vehicle, and your starter 1 wire from your remote starter.
The place I bought the remote starter said just connect the 2 starter wires together to the remote starter. So I asked myself why does our truck have 2 starter wires in the first place if I can just connect both of them together then wouldnt there be only 1 and maybe 2 times thicker ? After doing some reading some people actually had mechanical failures who connected both starter wires together while doing there remote starters. I guess some starter wires have something to to with the transmission, just like the ignition has to do with the engine timing and spark.
I chose to leave the ignition 2 wire of the remote starter to its default ignition 2 so I would not damage my engine or transmission down the road. I also chose to wire a relay for a second starter wire add-on.
My Ultra Start 1272 XR PRO has what is called a virtual tach. Tach is your system measuring the voltage of your electrical compenants to know the engine is started and to stop cranking the starter. The older systems all have a wire tach, and do not have a virtual tach. My system is supposed to measure the voltage from the time I hit the button with virtual tach, but I dont know how reliable this virtual tach is so my newer system has both. Because I dont know how reliable this virtual tach is I wired the tach wire. From the time I hit the button on the remote I know it is being monitored through that wire. Because of that hard-tach wire my remote starter should NOT grind my starter damaging the teeth on my starter, and flywheel.
The following link is where I got vehicle specific wiring. AND A PICTURE WITH arrows pointing to and naming the wires as well. I studied the picture for 3 or 4 days before I got the bright idea and courage to print it off and disassemble the the interior in the truck and take a look. It even tells you how to !!!. The foot-rest just pops off which it doesnt tell
you, and next to that foot-rest there is a plastic cap screw that screws onto a stud. You have to remove the foot-rest to get to the plastice screw. What puzzled me here first was how to get the foot-rest off without breaking it. The foot rest just pops off I dont remember where I read that off of but probably this site. The picture shows where the foot-rest was, and the cover next to it removed. After the foot-rest is removed, unscrew the plastic cap screw and just pull straight toward you on that side cover. Don't forget the screws behind your steering wheel Before you can finally pull the battery cables. I connected all of my wires with the battery cables disconnected. I also verified the information on The 12 volt.com with a few other websites because of my install the with the battery cables unhooked.
I also used masking tape to lable my remote starter wires with their corresponding Tacoma Wires. This was my first time doing this. I have wired radios, and speakers and such. But I have never wired a remote starter before.
Let me know if you have questions, and also if my post helps somebody I would like to hear as well. If information on how I wired my relay is needed I can try to post that as well, but just like remote starters I am new to this forum so I am finding my way around.
85 goes to a body ground
30 goes to 12 volts "I connected mine with white with blue stripe."
That is your 12 volt 50 amp circuit. You have 2 12 volt wires.
87 goes to your 2nd starter wire
86 Starter 1 wire on ignition switch
Starter 1 wire on your remote starter as well
! ! Starter 1 Wire !--------------!
! remote !---------!-------------! ignition !12 volts-----------! W
! starter ! ! ! switch ! ! H
!___________ ! ! !-------------! ! I
! ! ! T
! !Starter 2 wire ! E
! ! ! RED
! ! ! S
! !------------! ! T
! ! 87
! ! R
! ! ! ! I
!--------! 86 85
!-----GROUNDED ! P
!MINE TO 10 MM !
!------------! BOLT !
30 is 12 volts you have 2 in your ignition !
switch white/blue stripe, or white/ red stripe -----------