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Dont know what these codes are p1749 p0740 on 323i codes given by autozone

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I have a 1998 audi a4. it will not start and gives me the p1749 and p1625 codes. how do i fix this?

code p 1625 refers to CAN databus, TCM--incorrect signal===causes --TCM trouble code/s stored---TCM incorrectly coded---wiring---matching resistor in ECM
I don't have a listing for code p 1749 but codes 1748 and 1750 are concerned with TCM defective and voltage supply low
so after you check the wiring and connections form the transmission you have 2 options
use a known good ECM to replace yours ( will eliminate any ECM faults)
and/or replace the TCM module on the transmission

Nov 14, 2015 | 1998 Audi A4

1 Answer


the starter could be bad you can take it in to autozone to have it checked. it could be a fuel delivery problem, your fuel pump might have given out. if these turn out to be ok than take it into autozone to have them look up the codes on the computer. (i dont think they will come out to the vehicle but if you can get it there somehow they will do it for free)

Oct 28, 2013 | 1989 Chevrolet Corvette

1 Answer

Check engine light code

What is the code? If you dont know, go to autozone etc they read the codes for free

Apr 26, 2013 | 1991 Toyota Corolla

1 Answer

I dont know how the engine ballast resistor look on 99 nissan maxima

What code did autozone say you had. Ballast resistors have been used in cars since the late 1970's.

Apr 02, 2013 | Cars & Trucks

4 Answers

The engine light is on i dont know what it means i checked the oil trans and i dont know what eles

I'd go to an auto parts store that will check for any diagnostic codes free of charge (autozone and advance auto both do) and if you have any codes, list them here and I can tell you their definitions and the most common solutions to fix them in detail if needed

Nov 29, 2010 | 2000 Dodge Caravan

1 Answer

Service engine light came on and codes given at autozone are P0316 and P0304. Any info would be helpful.

pic up a manual at the zone-it has the standard list what each code signifies-remember they dont always tell u the solution cause physical problems in engine require inspection

Aug 17, 2010 | 2003 Ford Expedition

1 Answer

How to know why the check eng turn on

Take your vehicle to AutoZone. They will analyze the "check engine light" free. Ask for an explanation print-out (free).
Have them reset the light (yes, free).
Comment to us the code that you were given and a summary of the print-out. We will advise.

Oct 05, 2009 | 2000 Kia Sportage

2 Answers

How to get the code from 2004 kia sorento , check engine light come on and engine cut off, engine can be start but keep cuting off

I dont know if you can ODB self-diagnostic, but if you can go to an auto store (Advance, Autozone, etc) and use their code reader (It's FREE!).

Sep 15, 2009 | 2004 Kia Sorento

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