Question about 1998 Audi A4

1 Answer

Won't retrieve Scanner Codes.

When I plug my Snap-on scan tool in, it says that there's no communication with ECM. Fuse is good. Any suggestions?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Audi Master
  • 71,248 Answers

There should be 12 volts present at terminal 16 of the OBD II diagnostic connector, this is the lower row of terminals, last terminal on the right, this is the same no matter who makes the car on all 1996 OBD II systems, if no voltage is present check your fuse panel, most likely the fuse will be blown for the cigar lighter or the accessory 12 volt power point, not sure what it is called in your Audi. Hope this helps.

Posted on Dec 19, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Believe i have the check engine light on ,It sometimes go away but returns which indicates a definite problem,however I don't seem to be able to connect the obd 11 tester to retrieve the codes.Sho

what country? OBD2 varies by Country some not until 2007 year. or 2010
old post. but will answer or all N/American cars.
or XL-7
first off the CEL must glow key on, if not the fuse is blown
if the fuse is blown the SCAN tool will never ever communicate.
a scan tool can be had for $7 , so is near free.
cheaper that beer holder on dash. LOL
you then key on, and the scan tool comes up.
you can scan for DTCs stored, motor not running. id do that.
then start car, and see lots of things. (and cell go out , if no errors)
here is a review. of some steps, tests, ways, means...
i now use A wifi and bluetooth tool, but is only convenience.

Jan 27, 2013 | 2007 Suzuki XL-7

1 Answer

Dodge ram won't start and ECM light and check

First you need to retrieve the trouble codes stored in the computer.If you don't have a code reader or scan tool you can take it to your local autoparts store (advance auto,autozone,ect) and they can retrieve them for you.Then we can go from there.

Jan 12, 2012 | 2007 Dodge Ram Truck

1 Answer

I have a Nissan Sentra XE 2000 Ocasionally gets an overdrive light, the car boggs down, and won't move. When the light goes out it will run ok. but it comes and goes intermittently. More now than then....

start with scanning your system with CONSULT2. unfortunatelly this tool is only available at your friendly nissan dealer. generic scanners are not capable of retreiving codes from trans modules/components unless you have a more expensive scanner such as SNAP ON SOLUS or something similar. small scanner for $50 bucks from auto parts store usually doesnt read trans codes. engine codes only. if your O/D loght is flashing that means transmission issue. could be the solenoid pack on the valve body other elecrical component or convertor failure. have it scanned for codes first. then let mr know ehat the number is for the code.

Sep 19, 2011 | 2000 Nissan Sentra

1 Answer

The check engine light is on. i tried talking with the ECM with a mt 2500 snap-on scanner.the scanner reads no communication. do the haynes manuals have wiring diagrams,and because the ECM;S are under the...

Check the fuses. you will have one for ecm, also check the cigarette lighter fuse. they some times the dlc in with that fuse. it is best to remove the fuse when checking, I have found that they loose contact and removing them fixes problems. Haynes manuals do have electrical for the computers.

Nov 17, 2010 | 1998 Jeep Grand Cherokee

1 Answer

Air bag light lite. can,t read codes, reader won,t connect

You need to get a scanner that will read the supplemental the codes from the inflatable restraint module.Not all scan tools can do this.This is the only way to retrieve the codes.Hope this helps.Good luck.

Mar 22, 2010 | 1999 Buick Century

3 Answers

Does anyone know how to retrieve engine codes for a 2001 pontiac grand prix, or do you have to have a scanner?

You need to have a OBDII scanner reader. Most auto Parts store like Auto Zone or Parts Source will scan free of charge and will give you the recommended instructions to address the issues your car's ECM has detected. Good luck and hope this was good news for you and thank you for using Fixya.

Mar 06, 2010 | Pontiac Grand Prix Cars & Trucks

2 Answers

Unable to retriece codes from 1998 chevy blazer

i have run into this before on cheap scan tools for some reason they dont always read the codes. find some one that has a OTC or snap-on . there is a reason these tools cost 3-4 thousand dollars.

Sep 11, 2008 | 1998 Chevrolet Blazer

Not finding what you are looking for?
1998 Audi A4 Logo

540 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audi Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22059 Answers


Level 3 Expert

71231 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

13732 Answers

Are you an Audi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides