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SmokinVette.com Forums : Corvette Forums : C4 Corvette Forums : C4 Corvette General Discussion : 1985 Ignition Wire Diagrams Please
C4 Corvette General Discussion
1984 - 1996 Corvettes

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Old 01-03-2013, 10:05 PM   #1
thec4
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Default 1985 Ignition Wire Diagrams Please

Hello everyone, Well first things first, Im brand new to this forum, i've been looking around when i need help on a project but i recently made my account and this is my first post.

So i bought this start button switch on ebay, Its nothing fancy and you still need keys to start your car, so pretty much you just add an extra switch, for more info i was going to add links for you guys, but i need 10 posts at least and i have zero, so please, do a youtube search on "mighty car mods how to install a start button" - thats how its supposed to work. also, on ebay its as simple as typing in push start button. its a relay box, a button, and packaging.. simple, but i have no idea which wires i need to access on my 85 vette since the ignition cylinder has no visible wires and putting the steering column back together was a real pain I dont know where those wires are and i dont have diagrams. . . any help is much appreciated, thank you everyone.
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Old 01-05-2013, 03:55 PM   #2
vetteoz
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Quote:
Originally Posted by thec4 View Post
i bought this start button switch
its a relay box, a button, i have no idea .
You already have the relay ; just use the new switch to operate that relay instead of wiring in a new one

http://s171.beta.photobucket.com/use...ml?sort=3&o=66


http://s171.beta.photobucket.com/use...ml?sort=3&o=92
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Old 01-06-2013, 06:47 AM   #3
twistedcherokee
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Is it this one? http://www.ebay.com/itm/Car-Push-But...81ca9a&vxp=mtr
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Old 01-12-2013, 05:35 PM   #4
thec4
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Sorry I took long to log in guys, I sorta forgot my password.. but yes, thats the one I have in the link you provided for ebay.
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Old 01-12-2013, 05:41 PM   #5
thec4
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Hey vetteoz, what do you mean I already have a relay? You mean a factory one and I dont need this one I have? And where is ot located exactly? Thanks.
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Old 01-12-2013, 06:33 PM   #6
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Quote:
Originally Posted by thec4 View Post
Hey vetteoz, what do you mean I already have a relay? You mean a factory one and I dont need this one I have? And where is ot located exactly? Thanks.
He already showed you exactly where it is located with pictures. Open the links.......
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Old 01-12-2013, 07:11 PM   #7
thec4
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Ok. I see. Behind the info center... and above the head unit. Right? And the diagram shows the wires in the relay box, or just the relay box, no wires comming/connected to relay box?
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Old 01-15-2013, 04:05 AM   #8
mat helm
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Forget about the OEM starter relay or it's location. You install this the same way you would a remote starter. The only thing you need worry about is the starter and power wires in the ignition harness.

Use the relay that comes with the kit on the yellow (I think) starter wire because you don't want the high amps going through your little button switch. Be sure to use the Orange acc wire for relay power and not the Red constant 12v (you don't want the button to turn the starter without the key on)...

Bulldog Vehicle Wiring Diagrams
CHEVROLET

MODEL YEAR(S)
CORVETTE 1990 -1993 (closest they had)
KEY T-HARNESS IMMOBILIZER
N/A N/A GM'S VATS ANTI-THEFT SYSTEM, SEE NOTE #1
PART COLOR LOCATION
12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS
STARTER YELLOW (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS
IGNITION 2 N/A
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BROWN (+) @ HEADLIGHT SWITCH or LOW in DRIVERS KICK PANEL
POWER LOCK LT. BLUE (TYPE C) IN EITHER KICK PANEL
POWER UNLOCK BLACK (TYPE C) IN EITHER KICK PANEL
DOOR TRIGGER BLACK/WHITE (-) and BLACK/YELLOW(-) USE BOTH AND DIODE ISOLATE!! IN EACH KICK PANEL
DOMELIGHT SUPERVISION WHITE (-) (Requires #775 Relay) @ UNDERDASH LIGHT
TRUNK RELEASE BROWN (-) @ HATCH RELEASE SWITCH
SLIDING POWER DOOR N/A
HORN BLACK (-) @ STEERING COLUMN HARNESS
TACH WHITE (AC) @ IGNITION COIL
WAIT TO START LIGHT N/A
BRAKE WHITE or LT. BLUE (+) @ BRAKE PEDAL SWITCH
FACTORY ALARM DISARM LT. GREEN (-) IN EITHER DOOR HARNESS
ANTI-THEFT GM'S VATS ANTI-THEFT SYSTEM, SEE NOTE #1 @ IGNITION SWITCH
EXTRA INFORMATION
NOTE #1: Vehicle is EQUIPPED WITH GM'S VATS ANTI-THEFT SYSTEM, REQUIRES 791 BYPASS MODULE to REMOTE START, to order go to the SECURITY BYPASS MODULE Page on this website.


The video is right, this is stupid...


Last edited by mat helm; 01-15-2013 at 04:08 AM.
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Old 01-15-2013, 04:41 AM   #9
mat helm
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This is part of my own diagram I made for my 93...



Ignition wires (area) circled on a 93...



edit: btw, As hard as these things are to get to, you really should solder all connections....

Last edited by mat helm; 01-15-2013 at 04:54 AM.
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Old 02-06-2013, 05:39 PM   #10
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ALL DONE finally!!! I know its pointless and stupid but it adds a little more... interest to the old faded corvette, Ill try to post the how to precess if anybody is interested, i was thinking of doing "how to youtube videos" on working on my c4 while i restore it. But it might take a little more skill from my part, which i sorta dont have. BUT ANYWAYS, THANKS A LOT MATT i appreciate it, thanks to the rest that helped.
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