2007 scion tc viper 5901 ignition relay

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the12voltuser

Member - Posts: 48

Joined: May 09, 2006

Posted: October 29, 2009 at 3:13 PM / IP Logged

Mike M2 wrote:

You are correct now. You still need a second starter relay tho. The AUX harness you show above, violet wire, will drive the relay(86). 85 and 30 to 12volts, 87 to the second starter wire in the car.

Or should i use SPST Relay as it doesnt have 87a connection?

Thank you.

t&t tech

Platinum - Posts: 2,608

Joined: October 05, 2008

Location: Trinidad and Tobago

Posted: October 29, 2009 at 3:34 PM / IP Logged

It doesn't matter, SPDT, or SPST relay will work! If you already have either use it, no point in purchasing another to do the same!

t&t tech

Platinum - Posts: 2,608

Joined: October 05, 2008

Location: Trinidad and Tobago

Posted: October 29, 2009 at 3:40 PM / IP Logged

The second starter relay is to energize the second starter wire! There isn't a second one on the heavy gauge harness because it isn't present on all cars, so dei made it so in the event there was one you could still power it using the trigger wire! If you're wondering why you couldn't just tie both starter wires together it's because they are separate from the factory for a purpose, it's best to leave it that way!

Also here's how i wire that second starter relay

Pin 85- the starter trigger wire negative,

pin 86- ignition

pin 30- constant twelve from the ignition harness not the ignition wire why (because the ignition here would have to draw the current to power the second starter circuit as well as it's own circuits)

pin 87- second starter wire in car!

the12voltuser

Member - Posts: 48

Joined: May 09, 2006

Posted: October 29, 2009 at 5:16 PM / IP Logged

t&t tech wrote:

Also here's how i wire that second starter relay

Pin 85- the starter trigger wire negative,

pin 86- ignition

pin 30- constant twelve from the ignition harness not the ignition wire why (because the ignition here would have to draw the current to power the second starter circuit as well as it's own circuits)

pin 87- second starter wire in car!

Thank you!

T&T, can both variations be used to connect this relay?

The only thing i am confused in your directions, is that we already connected both of Ignition wires to H3 harness:

2007 scion tc viper 5901 ignition relay - Page 2 -- posted image.

But then again it needs to be reconnected for second starter relay?

Is it possible to give adjustments for both pictures?

So i guess here is the new diagram.

I very appreciate your help, i want to make sure about each wire, before i go to install this thing this weekend.

syl20rochon

Copper - Posts: 298

Joined: October 16, 2009

Location: Ontario, Canada

Posted: October 29, 2009 at 5:20 PM / IP Logged

Make: scion

Model: TC

Year: 2007

FUNCTION DATACOLOR LOCATION POLARITY PICTURE

+12 Volts Red Ignition Harness +

Comments: Additional 12-volt power wire: WHITE.

Ignition Blue Ignition Harness +

Ignition 2 Yellow Ignition Harness +

Accessory Gray Ignition Harness +

Starter Black Ignition Harness +

Starter 2 Green Ignition Harness +

Key Sense Black Steering column harness -

Comments: Pulsing this wire will disarm the OEM alarm without unlocking any door.

Tachometer Black Diagnostic connector AC

Parking Lights Brown Headlight switch -

Comments: Can use BROWN (+) wire at top connector of fuse box.

Brakeswitch Blue Brake Switch +

Parking Brake Black Parking brake Switch -

Lock Green Driver's kick panel -

Comments: Will arm & lock at the same time. To test rotate key in driver's lock cylinder.

Unlock Purple Driver's kick panel -

Comments: Will disarm & unlock if double pulse is used. To test rotate key in driver's lock cylinder.

Trunk Release Orange Driver's kick panel -

Arm Arms With Lock Driver's kick panel -

Disarm Disarms with Unlock Driver's kick panel -

Horn White Steering column harness -

Doorpin separate doorpin Fuse box -

Left Front Doorpin Orange Fuse box -

Right Front Doorpin Blue Fuse box -

Trunk Pin Purple Fuse box -

Security: OEM ALARM,TRANSPONDER

Sylvain Rochon

MECP security specialist

Tech support for remote starters

26 Years of experience counts

I'm here to help.

Mike M2

Platinum - Posts: 2,652

Joined: June 29, 2005

Location: United States

Posted: October 29, 2009 at 5:52 PM / IP Logged

Your dead on now! 86 can be either ignition or battery, won't matter. I used to have a guy work for me that did 4 toyota's before i fired him for poor work. On all the cars he tied the starter wires together and they worked fine...at first. Withing a month all 4 cars came back with the AM1 fuse blown in the car. The cure was to add a relay of coarse. I couldn't tell you why the fuses blew or why they need to be separated, but i know they do need to be....

Mike M2

Tech Manager

CS Dealer Services

syl20rochon

Copper - Posts: 298

Joined: October 16, 2009

Location: Ontario, Canada

Posted: October 29, 2009 at 5:55 PM / IP Logged

If the manifacturers makes vehicules with 2 seperate ignitions, starters, accessory wires...there is a reason and our job is to duplicate what they built not modify it...relays are a technicians best friend in many cases....

Sylvain Rochon

MECP security specialist

Tech support for remote starters

26 Years of experience counts

I'm here to help.

the12voltuser

Member - Posts: 48

Joined: May 09, 2006

Posted: October 29, 2009 at 6:10 PM / IP Logged

So i guess either will work:

per T&T

per Mike

Thank you.

syl20rochon

Copper - Posts: 298

Joined: October 16, 2009

Location: Ontario, Canada

Posted: October 29, 2009 at 6:13 PM / IP Logged

I normally connect the 2nd starter as follow...

85= small purple wire from the 5 pin connector

86 & 87= +12V

30= Second starter wire of vehicule.

Sylvain Rochon

MECP security specialist

Tech support for remote starters

26 Years of experience counts

I'm here to help.

t&t tech

Platinum - Posts: 2,608

Joined: October 05, 2008

Location: Trinidad and Tobago

Posted: October 29, 2009 at 9:01 PM / IP Logged

Yup! Either relay setup will work mr.12voltuser!

Also mike had that experience with a fellow installer at the shop i work, he used six amp diodes to isolate the wires, the second starter fed of the first one, when he's really lazy he just ties them in together, alot of his customers come back with problems. Suprisingly the owner of our shop still keeps him on because he doesn't know better either!

And don't blame me cuz i try to teach them, but they never take my advice, because i have less experience than them! LOL, funny thing is, when they can't figure the problems, you wouldn't guess whom they come to for help! 2007 scion tc viper 5901 ignition relay - Page 2 -- posted image.

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