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Where does the purple wire get its juice??

Desperado

Member
Joined
Oct 31, 2019
Messages
5
Location
Northwest Colorado
Corvette
1984 Two tone Light/Medium blue metallic
Hi folks,

1984 Corvette, all original stock

I PROMISE I will be using the search feature and dig about, but I am so close to solving my no-crank issue! :upthumbs
Mind you, I bought my Corvette without ever driving it, so I hope you can understand!

I can apply power via my power probe 3 to the purple wire on the theft-deterrent relay AKA the starter interrupt relay (i think), cranking happens and she runs GREAT!
So obviously, I have an open or short to ground somewhere between the ignition switch and the relay. Does anyone happen to know where the source voltage for the purple wire comes from? Ignition module? Ignition module is new by the way, the old one looked worse for wear, but no corrosion. Using my power-probe to start the car all the time isn't exactly practical :)

Thank you!
 

Desperado

Member
Joined
Oct 31, 2019
Messages
5
Location
Northwest Colorado
Corvette
1984 Two tone Light/Medium blue metallic
Found what I needed! Link here for future use in case someone (or I) run into the same problem in the future!

[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]https://photobucket.com/gallery/user/88f150xlt/media/cGF0aDovODQgODUgdGhlZnQgZGV0ZXJlbnRfenBzcWQ2a3Q1YWwuanBn/?ref=

(Thanks to ECSS if you are still around!)
[/FONT]
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
Found what I needed! Link here for future use in case someone (or I) run into the same problem in the future!

https://photobucket.com/gallery/user/88f150xlt/media/cGF0aDovODQgODUgdGhlZnQgZGV0ZXJlbnRfenBzcWQ2a3Q1YWwuanBn/?ref=

(Thanks to ECSS if you are still around!)



So what was your problem?

Do you understand how the circuit works?
 

Desperado

Member
Joined
Oct 31, 2019
Messages
5
Location
Northwest Colorado
Corvette
1984 Two tone Light/Medium blue metallic
Hi LLC5,

Turned out to actually be the linkage coming from the ignition cylinder binding. Can't believe I didn't notice it before.

I definitely understand the circuit.. automotive electrical and CAN bus systems are my livelihood. I just don't love approaching an electrical problem without a diagram.

Thank you!
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
Hi LLC5,

Turned out to actually be the linkage coming from the ignition cylinder binding. Can't believe I didn't notice it before.

I definitely understand the circuit.. automotive electrical and CAN bus systems are my livelihood. I just don't love approaching an electrical problem without a diagram.

Thank you!


Understood........
 

GWinter

Well-known member
Joined
Oct 2, 2005
Messages
52
Location
NW Iowa
Corvette
1990 conv. 6sp
If your going to be working on the care more often you should order the factory service manual.
 

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