Remote start for Tundra 2009

Do I need to install a relay for a second starter, since my truck has two 12VDC. Planning to have it install tomorrow. Appreciate if anyone can respond.

Already explained. Look at my link on the previous page.

Test and Verify all wires with a DMM prior to making any connections From you heavy gauge connector: RED / Black, Red, RED / White, and the Red from the main harness as well as the DB-ALL, Pin 13, Red on the 14 pin connector, to 12 Volts constant...Black @ Dash Fuse Box Pink to Ignition 1....Black @ Ignition Harness Pink/White Ignition 2.....Light Green @ Ignition Harness Violet Starter.....Green @ Ignition Harness Orange Accessory.....Gray @ Ignition Harness. http://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.aspx If Tundra is an automatic, ground the BLACK/ White(pin 13 from 24 pin harness) along with the Black from the 6 pin main harness. I don't see anything that indicates the Tundra has a second starter so no relay needed.When all else fails, Read the Instructions

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Ah, Mr. Smoke, you beat me to the post.    But I spent so much time making a swell diagram, here goes anyway.

( It's just a rehash of your excellent info.)

Info from Bulldog Security :

12 VOLT CONSTANT    BLACK (+)            @ DASH FUSE BOX, WHITE 1-PIN PLUG (DA), Pin 1    STARTER       GREEN (+)            @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 7     IGNITION 1     BLACK (+)             @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 6    IGNITION 2     LT. GREEN (+)      @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 1    ACC/HEATER BLOWER 1      GRAY (+)   @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 2  

Info from ReadyRemote :

12volts        black (140A or 150A)    +          dash fuse box, white 1 pin plug (DA), pin 1Starter         green  +           ignition switch, white 8 pin plug, pin 7        Ignition        black  + ignition switch, white 8 pin plug, pin 6   Second Ignition       lt. green  +       ignition switch, white 8 pin plug, pin 1        Accessory   gray  +   ignition switch, white 8 pin plug, pin 2

Info from Omega :

Constant 12 volts BLACK       AT FUSE BLOCK Ignition 12 volts     BLACK       @ IGNITION SWITCH HARNESS Starter      GREEN      @ IGNITION SWITCH HARNESS Ignition #2   LT GREEN @ IGNITION SWITCH HARNESS Accessory   GRAY         @ IGNITION SWITCH HARNESS

Audiovox has the exact same info :

All of the general wiring sources agree and that is exactly what I have found on the 2009 - 2010 Tundra's that I have done.  So, with

that info and your chosen Viper system, this is how I would make the ignition connections :

Remote Start, 8-pin connector

1 RED / BLACK (+) 12VDC CONSTANT BLACK (+)  @ DASH FUSE BOX, WHITE 1-PIN PLUG (DA), Pin 1 2 PINK/BLACK (+) FLEX RELAY INPUT 87A     not used3 PINK/WHITE (+) IGNITION 2 / FLEX RELAY   LT. GREEN (+)      @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 1 4 RED (+) 12VDC CONSTANT INPUT   BLACK (+)   @ DASH FUSE BOX, WHITE 1-PIN PLUG (DA), Pin 1 5 VIOLET (+) STARTER OUTPUT         GREEN (+)   @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 7   6 ORANGE (+) ACCESSORY OUTPUT GRAY (+) @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 2  7 RED / WHITE (+) 12VDC CONSTANT INPUT   BLACK (+)             @ DASH FUSE BOX, WHITE 1-PIN PLUG (DA), Pin 1 8 PINK (+) IGNITION 1 INPUT/OUTPUT   BLACK (+)   @ IGNITION SWITCH HARNESS, WHITE 8-PIN PLUG, PIN 6 plus DB-ALL2 black 10 Pin plug, Pin 9 Pink 

As mentioned before, all the ignition wires at the ignition switch harnesses are 16 - 18 gauge so you could fuse down the three

H3 Red, RED / xxx  +12V constant input wires.  Personally, I would position the Viper near the fuse box and do it this way :

Soldering is fun!

I will add the diagram is not to scale x2 with kreg though for a detailed post.Ted

2nd Year Tier 1 Medical School

Still installing as a hobby...pays for groceries

Compustar Expert

Well Kreg,   You always do the extensive research on these posts which is way more detailed then my post. Nice diagram though. It's not often I beat you to a post. Anyway, I was just putting out enough info to get the guy started. When all else fails, Read the Instructions

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Those diagrams got me to thinking. The earlier Clifford stuff, AG3/4/5 had separate fuses and much longer feed wires. You could place the fuse correctly, that is within 4" of your source. The current DEI stuff has the fuses at the brain, WRONG!. Apart from which the wire quality is awful on current product. Sorry I listed a diagram with two starters, it was one I did a couple of years ago in another post, bloody heck I've never seen a bloody Tacoma. Only ever done 1 Land Cruiser and what a PITA, PTS and you have to open up the BCM to get at TX and RX, not pre-wired as on North American versions.

I rarely use the entire length of the constants. Often times I'm trimming off 3-6 inches if the wires go to the ignition. I have to agree that the current generation 5x0x series brains can use some work. Although an improvement on form factor, the colour coding system has gone to the gutter. Multiple wires of the same colour, no shading between them! I had benched prep a unit brought to me, and during the install; I was forced to cut open my prep just to trace my wires. This is only on the 5706/5906. The older 5901/2 early 5904/6 didn't have these problems. Then again, I don't touch DEI flagships (viper/python/clifford) often. Ted

2nd Year Tier 1 Medical School

Still installing as a hobby...pays for groceries

Compustar Expert

My tundra does come with two starters and two 12VDC constant, 2 Ignitions, and an ACC. Testing with DMM this afternoon. This is why I am wondering if I need a relay for the second starter. I am sure I will need one relay if I have two starters. Asking you guys because I just want to be more than sure.

Thanks kreg357 for the suggested wiring diagram