04 toyota mr2 spyder brake r/s
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99094
Printed Date: May 14, 2025 at 10:45 PM
Topic: 04 toyota mr2 spyder brake r/s
Posted By: kassdog
Subject: 04 toyota mr2 spyder brake r/s
Date Posted: November 17, 2007 at 12:22 PM
I'm putting in a basic remote start into a 2004 toyota mr2 spyder. My question is that in order for the car to start you need to have the brake depressed. Is there anything special that needs to be done in order for the remote start to work. I was thinking that maybe a relay needs to be used to send a 12v signal to the brake during remote start.
Replies:
Posted By: KarTuneMan
Date Posted: November 17, 2007 at 1:11 PM
Manual trans?
Posted By: kassdog
Date Posted: November 17, 2007 at 2:34 PM
No, auto stick with no clutch.
Posted By: KarTuneMan
Date Posted: November 17, 2007 at 2:44 PM
Theres nothing in the wiremagic tech notes, OR the astrochart, for this car being anything other than a normal install? | PASSIVE ANTI-THEFT | YES | TRANSPONDER | SEE NOTES | | 12 VOLTS | WHITE/ red | Ignition switch harness | + | | | | These wires may change color at a connector on the steering column. Verify both sides of the plug for these colors. |
| | IGNITION | RED / white | Ignition switch harness | + | | | | These wires may change color at a connector on the steering column. Verify both sides of the plug for these colors. |
| | IGNITION 2 | BLACK / YELLOW | Ignition switch harness | + | | | | These wires may change color at a connector on the steering column. Verify both sides of the plug for these colors. |
| | ACCESSORY | Runs with ignition | | | | STARTER | Red | Ignition switch harness | + | | | | These wires may change color at a connector on the steering column. Verify both sides of the plug for these colors. |
| | KEY SENSE | Yellow/red | At steering column | - | | TACH SIGNAL | White | Under driver's side running board | AC | | FUEL INJECTOR | Opposite of BLACK/ red | At any injector on engine | AC | | LOCK | Blue/white | In driver's kickpanel | - | | UNLOCK | Blue / YELLOW (double pulse) | In driver's kickpanel | - | | DOORPIN | RED / white | SEE NOTES | - | | | | RED / white in DKP cathces driver's door. RED / white in PKP catches passenger door. |
| | BRAKESWITCH | GREEN / WHITE | At switch above brake pedal | + | | PARKLIGHTS | Green | In driver's kickpanel | + | | | | You can also use RED / WHITE (-) at the light switch. |
| | HAND BRAKE | BLACK/ white | At DRL module | - | | | | RED / white in DKP cathces driver's door. RED / white in PKP catches passenger door. |
| | HORN | WHITE/ red | At steering column | - |
Posted By: kassdog
Date Posted: November 17, 2007 at 2:58 PM
I have the wiring guide. But normally aren't you supposed to interface it some how. Otherwise I can't see how it will get started. I guess I'll try to hook it up normal and hope that it works.
Posted By: techman93
Date Posted: November 17, 2007 at 11:53 PM
Most remote starts wont allow the remote to start with the brake wire engaged so you will need to be creative. The unit will have to send 12v+ to the brake but not the remote start. I imagine a couple relays may be needed to accomplish that.
Here is a possible solution:
relay #1
pin 30 to fused 12v+ constant
pin 85 to fused 12v+ constant
pin 86 to negative crank output off remote start
pin 87 to the brake wire that needs to go 12v+ to start
relay #2
pin 30 to remote start 12v+ brake trigger
pin 86 to negative crank output off remote start
pin 85 to a fused 12v+ constant
pin 87a to the brake wire that goes hot (GREEN / WHITE)
If the remote start unit doesn't offer a negative output for a second starter you will need to send a positive through a diode to pin 85 of both relays and on both relays change pin 86 to a ground
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The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya
Posted By: kassdog
Date Posted: November 18, 2007 at 10:29 AM
Great I'm going to try this now. Get back to you if it works.
Posted By: kassdog
Date Posted: November 18, 2007 at 11:23 AM
So tried it and it didn't work. Any other ways you can think of. I think the problem with the diagram you gave me is that there is only one wire in the brake switch that switches to 12v when pressed and thats the GREEN / WHITE.
Posted By: profuse007
Date Posted: November 18, 2007 at 11:32 AM
Check if there is another switch on the brake pedal. I did couple of these awhile back but do NOT remember such a thing, or it might have been MT.
my diagramdo NOT show anything needs to be active prior to starting. link is for 04 mr2 spyder. ------------- Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: kassdog
Date Posted: November 18, 2007 at 12:45 PM
There is only the one switch coming from the brake. Here are the wire colors. RED / Blue White GREEN / WHITE RED / white. The only two wires that test are GREEN / WHITE which is brake and white that is 12v. I tried wiring up this relay configuration and it didn't work Relay 1 86-(-) starter output 85- 12v fused 87a- GREEN / WHITE switch side 30- GREEN / WHITE opposite side Relay 2 86-(-) starter output 85 87- 12v fused 30- GREEN / WHITE opposite switch side Is this setup correct. With this configureation it still doesn't work and it sends 12v to the GREEN / WHITE during crank. but does not crank.
Posted By: kassdog
Date Posted: November 18, 2007 at 1:19 PM
So I just tested the wires again and found out RED / white is a switch 12v wire with ignition and that RED / blue turns 12v with ignition and drops to 0 when pressed. Now im sure thats where I need to hook up the relay but I'm having a brain fart and can't figure it out.
Posted By: techman93
Date Posted: November 18, 2007 at 1:59 PM
so the RED / blue wire turns negative or to nothing? If it goes to ground then wire relay as follows:
pin 30 to ground
pin 87 to RED / blue wire
pin 86 fused 12v+
pin 85 negative trigger crank, or a negative while running out
if it rests at nothing then cut the RED / blue wire and connect pin 87a to side at switch and 87 away from switch.
Connect the brake wire from remote start as normal
I hope this helps.
P.S. Did you wire a transponder bypass for the anti theft?
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The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya
Posted By: kassdog
Date Posted: November 18, 2007 at 2:07 PM
I'll try that right now. For now I'm just testing it with the key in the ignition to make sure I can get it.
Posted By: kassdog
Date Posted: November 18, 2007 at 2:41 PM
Allright it worked. Thanks for all the help guys. Its really wierd that dei didn't have anything on this.
Posted By: techman93
Date Posted: November 18, 2007 at 3:22 PM
sometimes other installers put together can help with weird issues like that. I am glad you got it working.
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The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya
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