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david craig
david craig, Auto Mechanic
Category: Car
Satisfied Customers: 3079
Experience:  owner/mechanic at 3D Automotive
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No power to the starter. I've tested every component of the

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no power to the starter. I've tested every component of the starting system. Everything is in good working condition. When testing the relay I noticed the ground connection of the relay was powered does this mean I have a short in the wiring somewhere?
JA: Is the power loss consistent, or does it fluctuate?
Customer: Consistent. I rigged some wiring to control the relay and connect the ground to a good known ground the vehicle starts.
JA: What is the model/year of your Audi?
Customer: 1998 Audi A4 1.8t Quattro
JA: Are you fixing your A4 yourself? What have you tried so far?
Customer: Yes self trained mechanic. Well I've traced it back to the starter relay. When I crank the vehicle terminal 30 has 12V terminal 86 has 12V and terminal 85 has 12V. But from my research terminal 85 should be a ground, right?
JA: Anything else you want the mechanic to know before I connect you?
Customer: That is it

Hi Im David. 85 should have no voltage correct

Customer: replied 9 months ago.
Where would this wire be getting voltage from?

let me pull a print

Customer: replied 9 months ago.
Would it be okay to cut the wire and ground it somewhere else?
Customer: replied 9 months ago.
If that wire is solely a ground wire I should be able to just add a new wire and ground at a different location.

im thinking about that sorry for the delay

im still with ya. got busy at the shop...looking now

its the ground for the coil of the relay. im not sure if you can. give it a shot

heres the circuit

if it were me, i would find out where the short to power is.

Customer: replied 9 months ago.
Alright. Do you know if the wiring runs behind the dash?

pull the fuse/relay panel. it might be right there. ill see if i can find out where it runs though

Customer: replied 9 months ago.
Alright. Thank you

you bet. keep me posted

any luck?

Customer: replied 9 months ago.
I was not able to track down where the wire shorted to power at as it goes up behind the dash. So I cut the wire and grounded it at a different location and now the car starts.

very good. glad it worked out for you. any other concerns? plese accept the answer and leave a 5 star rating for me if you were satisfied with my assistance. I hope I was able to help you get pointed in the right direction. thanks and have a great day.

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