Audi

Audi repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

2007 Audi Q7, 3.6 gas. ECM failed, replaced with a fully…

2007 Audi Q7 , 3.6...
2007 Audi Q7 , 3.6 gas. ECM failed, replaced with a fully programmed reman/new board.. had ignition keys recoded at local dealership. Stil a no crank. I have been using a jumper wire at starter relay under cowl on drivers side... the blue wire at relay is not getting 12v when turning key to crank pos.. I'm not sure if that one comes from another circuit or directly from ecm.. the Audi tech and I both think it's prob a connection issue, but cAr was cranking/starting Just fine before ecm failed.. EPC has been on since time of failure, I'm assuming it's directly related to the no crank issue. Battery is 2.5 years old test good, spins engine over like new when jumped at relay... when running car runs and drives fine, all other electrical circuits function fine. Audi tech said only codes present were related to pcm taking a dump, and clears them all. I have a copy of them. We both checked cables ,fuses, and relays under seat and cowling,, everything looks good. Is there a possibility tins is related to the reman ecm and a software issue? I work on diesel trucks on the side and use AutoEnginuity scan tool... for some reason this Q7 won't let me connect anymore , but my buddy that has a shop in town and the Audi dealer had no problem connecting. I'm used to the diesels but this car is a a whole new deal for me. Not having wiring diagrams makes it frustrating. Thanks, Ben
Show More
Show Less
Ask Your Own Audi Question
Answered in 25 minutes by:
9/21/2017
peterpete190
peterpete190, Technician
Category: Audi
Satisfied Customers: 31,770
Experience: Auto Technician with more then 17 years ecperience.Past ASE and other certifications.
Verified

Hi Ben my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.

This can be a fault due to the ecm not being programmed properly for your VIN number.If the security programming was not done in the ecm this will cause this fault or incorrect programming.

Since this was not an issue before the ecm was replaced I would have the programming re checked in the ecm to see if it needs reprogrammed again to resolve this fault here.I suspect this will be the cause.

The only other issue since this only occurred when the ecm was replaced is a loose or damaged connection or wires at the ecm itself.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Ask Your Own Audi Question
Customer reply replied 7 months ago
Thanks for reply. I'm sure hoping it is a tuning issue vs a wire connection , I have spent countless hours pinning wires on plenty of trucks..so time consuming....I'm going to call the company that I purchased ecm from today and see if they want me to send it back for testing. I had to laugh when I took the old one apart, it actually had water in it, not moisture - actual drops of water ... circuit boards were toasted.. not sure how it was even running prior to failing. So far I have not been able to find any bad ,chaffed, or broken wire connections just through visual inspection... both connectors at the ecm look clean...
Ben

Your welcome

That would be a good idea to have it tested to see if it does have a fault internally as it sounds like this is the possible cause with what is described.If all wiring is o.k. and all fuses are o.k. it can be a fault with the ecm programming or ecm itself.

Let me know if you need anything else and feel free to rate my help here or above ( should be a link to click on ) as this is how I receive credit for my time,this can be done at any time and you can still come back here and reply if needed.Your 5 star rating is appreciated

Thanks Pete

peterpete190
peterpete190, Technician
Category: Audi
Satisfied Customers: 31,770
Experience: Auto Technician with more then 17 years ecperience.Past ASE and other certifications.
Verified
peterpete190 and 87 other Audi Specialists are ready to help you
Ask your own question now
Customer reply replied 6 months ago
Sore haven't had time to get back on here .... I have since mailed the reman ecm and both keys back to the rebuilder. They to agreed it's most likely something to do with the security tuning..I sure hope so, it's been down for 2 1/2 months now.. I haven't heard anything back from them yet but will let you know as soon as I do or get the ecm reinstalled in the Q7.. thanks
Ben

Sounds good Ben.Let me know how this turns out and if you need anything else.

Thanks Pete

Ask Your Own Audi Question
Customer reply replied 6 months ago
We'll just an update.. the rebuilder called a little over. A week ago and said they had went through the tuning software with a fine tooth comb and can't find anything wrong or out of the ordinary... said it is an exact clone of the oem tuning... we sent them a list of all the codes we pulled prior to replacing the ecm, but I haven't heard anything back yet. If I can find them I will post on here. I really do hope they find something obvious, if not that means it's prob a bad wire or connection , or the start switch.... and I can see that looks to be a nightmare to change out ... I'll keep you posted ..
Ben
Was this answer helpful?
Ask peterpete190 Your Own Question
peterpete190
peterpete190
peterpete190, Technician
Category: Audi
Satisfied Customers: 31,770
31,770 Satisfied Customers
Experience: Auto Technician with more then 17 years ecperience.Past ASE and other certifications.

peterpete190 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

AudiDoc

AudiDoc

Independent Audi Shop Owner

1,695 satisfied customers

I've been working on Audis since I was 18 and own an independent Audi repair and performance shop

Matt

Matt

Engineer

569 satisfied customers

Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

Chris (aka - Moose)

Chris (aka - Moose)

Technician

351 satisfied customers

16 years of experience

Mike Kelly

Mike Kelly

Audi Mechanic

264 satisfied customers

17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.

Tim Mohr

Tim Mohr

ASE MASTER TECH

248 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Michael Miller

Michael Miller

ASE Certified Technician

241 satisfied customers

ASE Master Technician. Audi certified, including R8 and TDI (clean diesel).

Quattro King

Quattro King

Technician

140 satisfied customers

ASE Master Certified, 20+ yrs European experience

< Previous | Next >

Related Audi Questions
My garage changed the camshaft adjuster and the camshaft
My garage changed the camshaft adjuster and the camshaft sensor - however, the motor lamp continue to pop up and the reading says it is the camshaft adjuster or sensor - any suggestions?? … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
My boss has an audi a4 2011 wagon that keeps getting the EPC
My boss has an audi a4 2011 wagon that keeps getting the EPC or ECM lights coming on. The interrogation says it is a brake light fault. The dealer has had it 7 times to try to fix...keeps coming back.… read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
My daughter rode over a speed bump- tore the plastic under
my daughter rode over a speed bump- tore the plastic under cover and a plastic joint type part … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
2005 audi a4 quattro base 1.8t would not start the other day
2005 audi a4 quattro base 1.8t would not start the other day but when I turned the key on you could here a clicking noise from the starter took out tested and was no good put new starter in and turned… read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
351 satisfied customers
I have a 2001 Audi tt Quattro I had a used engine installed
I have a 2001 Audi tt Quattro I had a used engine installed 6 months ago & while it was apart new timing belt & & clutch kit but didn't replace daul mass flywheel! Went to take off one day & clutch bi… read more
Pete
Pete
Mechanic
Construction, Plant Fitter
131 satisfied customers
05 Audi A4 2.0l VIN WAUDF68E15A451214 CODE 00446 Left
05 Audi A4 2.0l VIN WAUDF68E15A451214 CODE 00446 Left Headlight Power Output Stage-J667-Faulty What is this code and how to fix?… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
Just got the car..the oil light is on and further, saying to
Just got the car..the oil light is on and further, saying to stop the car immediately. … read more
jim
jim
Vocational, Technical or Trade Scho
702 satisfied customers
On a subaru forester, 2004, there is a hose fitting on the
on a subaru forester, 2004, there is a hose fitting on the rear (firewall side) on the water manifold beneath the intake manifold. where does the hose that goes there go to? … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
206 satisfied customers
2002 Audi all road Quattro, 2.7L —installing upper control
2002 Audi all road Quattro, 2.7L—installing upper control arms front upper, all 4— we have to remove this suspension airbags to access the mounting bolts. How do we deflate the suspension airbags?… read more
Wolfgang
Wolfgang
6 satisfied customers
You seem to know what you're doing. I have a no start
You seem to know what you're doing. I have a no start condition on a 2004 Audi A4 1.8t. … read more
Matt
Matt
Engineer
Bachelor's Degree
569 satisfied customers
Its dead and i know i have to raise the driver side seat to
Hello, Its dead and i know i have to raise the driver side seat to get to the battery but the screws are on really tight so i dint know what to do. … read more
Wolfgang
Wolfgang
6 satisfied customers
Need to get to b1s1 (pre-cat) sensor on 2005 audi a4 3.0.
Need to get to b1s1 (pre-cat) sensor on 2005 audi a4 3.0 … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
My 1998 Audi Quattro transmission seems to be slipping. Can
my 1998 Audi Quattro transmission seems to be slipping. Can I change the oil and clean the filters to fix the problem? the fluid has not been changed since new. … read more
peterpete190
peterpete190
Technician
31,770 satisfied customers
Test. Test. 1911
test JA: What is the model/year of your Audi? Customer: test JA: What year is your Audi? Customer: 1911 JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: no JA: Anything … read more
vvovkexpert
vvovkexpert
I am having issues with the check engine light coming on and
I am having issues with the check engine light coming on and flashing and my car running very shakey … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
My audi 2005 a8 the front end will not come up. I check the
yes i check the fuses then frist the pump come onasnd i go to the controller and move it too lift but it will not … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
206 satisfied customers
Car made a whirring noise then died in the middle of the
car made a whirring noise then died in the middle of the road … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
475 satisfied customers
I have a 2005 Audi A8 and my pump well I only come on for a
I have a 2005 Audi A8 and my pump well I only come on for a half of a minute when the key is parsley turned on and then the lift cycle is grayed out along with dynamic. And when I turn the key complet… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x