BMW

BMW questions? Ask a BMW repair Expert for answers.

Ask an Expert,
Get an Answer ASAP!

My name is ***** ***** jam having a intermittent fault code…

Customer Question
My name is *****...

My name is ***** ***** jam having a intermittent fault code 281d on a 2004 330i I've replaced the alternator 4 times thinking that was it and the last time with a oem one. I can't find any info on how to t/s this code . If i disconnect this

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

Yes i was saying if i disconnect the connector from the alt i immediately get code 281c bsd interface so i know the wire from the alt to the dme is good.just don't know why i would be getting this intermittent battery charge lt on when its charging good 14.3 volts with the light on

Submitted: 2 years ago.Category: BMW
Show More
Show Less
Ask Your Own BMW Question
Customer reply replied 2 years ago
more info on what I've done already had charging system checked at just auto zone it tested fine. Battery also checked tested good . replaced the drive belts checked tensioner looked good . checked engine strap was corroded cleaned it. just can't find how to troubleshoot this intermittent code 281d BSD generator signal.
Answered in 1 hour by:
2/14/2016
BMW Mechanic: Juan Crespo, Tech Trainer replied 2 years ago
Juan Crespo
Juan Crespo, Tech Trainer
Category: BMW
Satisfied Customers: 1,532
Experience: A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
Verified

Welcome, my name is***** am a verified expert automobile technician. I, and all others like me are neither employees nor agents of Just Answer. We are independent service providers using the Site to sell our Expert knowledge to customers. I do my best to provide EXCELLENT 5 STAR service, please let me know what you need from me so you’re satisfied with my efforts and reward me with a Positive Rating.

Most likely cause is a Green/Brown wire broken under the insulation making a good connection intermittently - could mislead you into thinking it's good when the DME flags a code after you disconnect it. A more accurate way would be to leave it connected then wiggle it and see if it then flags the code. To confirm this, you could run a second wire, in fact creating a redundant circuit. You'll know you've found the cause if the issue goes away.

Please let me know if that helps.

Best Regards.

Ask Your Own BMW Question
Customer reply replied 2 years ago
I have verified this wire is good I did a continuity test from the alt connector tk the dme while shaking wire had no faults .do you know what is the bmw diagnostic code troubleshooting procedure
BMW Mechanic: Juan Crespo, Tech Trainer replied 2 years ago

Which alternator, Bosch or Valeo?

Ask Your Own BMW Question
BMW Mechanic: Juan Crespo, Tech Trainer replied 2 years ago

Oops, forgot to ask the most important question; what are you using to communicate with the DME, ISTA-d or O.S.S.?

Ask Your Own BMW Question
Customer reply replied 2 years ago
It's a Bosch and I just have launch Bluetooth scanner . With the code 281d intermittently
BMW Mechanic: Juan Crespo, Tech Trainer replied 2 years ago

I'm afraid all I've got on BMW procedures for this kind of issue is based on data obtained through either ISTAd or OSS (see attached graphic). I just can't see how that's going to help you if you don't have access to either software. Would you like me to opt out and re-open the question to the field to see if another expert has a way of working with the tool you do have? - optionally you could just ask customer service for a refund.

Best Regards.

Ask Your Own BMW Question
Customer reply replied 2 years ago
it looks like at this point I would really need the software to troubleshoot this .one other question I saw in the attachmentl you sent it said that this code will not turn on the mil is that the same light as the battery light.thanks for your input
Was this answer helpful?
Ask Juan Crespo Your Own Question
Juan Crespo
Juan Crespo
Juan Crespo, Tech Trainer
Category: BMW
Satisfied Customers: 1,532
1,532 Satisfied Customers
Experience: A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European

Juan Crespo 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:

Roger

Roger

BMW Master Tech

3,050 satisfied customers

10 yrs. experience as BMW Master Technician, shop foreman and dealer.

Marty

Marty

ASE Certified Technician

555 satisfied customers

ASE & Bosch Certified Master Tech. Over 30 years experience.

bimmaster

bimmaster

BMW Technician

1,838 satisfied customers

3 years dealer experience, master bmw tech

Sam

Sam

BMW Master technician

1,043 satisfied customers

BMW S.T.E.P. graduate, 10 years BMW dealership experience

Thebmwbum

Thebmwbum

BMW Foreman

714 satisfied customers

31 years BMW Experience

mike

mike

BMW Technician

694 satisfied customers

bmw master tech ase certified

Matt

Matt

Engineer

437 satisfied customers

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

< Previous | Next >

Related BMW Questions
BMW 330i bmw 330i service engine light code P0174, fuel system
bmw 330i service engine light code P0174, fuel system too lean (bank 2). how to fix it… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Bmw e90 330i 2006. Car doesnt start, cranks good but doesnt
Bmw e90 330i 2006. Car doesnt start, cranks good but doesnt fire up. it has following codes 0062CE overvoltage fault, 00E18D message failure, 002E84 electric coolant pump communication. Originally the… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2006 bmw 330i: rough idle..the noise is the alternator clutch..belt
I have a 2006 bmw 330i e90. I have taken it twice to a well reputable company and they've told me that they've looked twice now at the squeling noise I complained about and the rough idle, and that th… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
2004 330i bmw need instuction on how to remove intake
2004 330i bmw need instuction on how to remove intake manifold and replace all hoses and throttle body and idle control valve… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have a 05' BMW 330i. I am having trouble passing a Smog
I have a 05' BMW 330i. I am having trouble passing a Smog Check in (CA) because two monitors -- Catalyst and EVAP -- are not firing/completing. My online research leads me to believe that the root cau… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
2006 330i won't start when button pushed. able to unlock
2006 330i won't start when button pushed. able to unlock steering wheel, brake light work, chargeable key, battery at 12.27volts (drops to 11.47volts at start attempt) and no clicking sound from start… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 02 BMW 330i with 149000 miles on the odometer that
I have a 02 BMW 330i with 149000 miles on the odometer that started developing the bad habit over the last 10k miles. The engine is stalling when it is hot and operating in a stop and go fashion durin… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Front turn signals don't work, rears do, 2001 330i. No fuse
front turn signals don't work, rears do, 2001 330i … read more
Mechanic01
Mechanic01
2,609 satisfied customers
BMW 2005 330i light check engine soon. Car starts,idles and
BMW 2005 330i light check engine soon. Car starts,idles and drives great. Mechanic said diagnostic code indicates heat, must be a wire short. Said needs to start striping wires to find problem. Want t… read more
Marty
Marty
ASE Certified Technician
Associate Degree
555 satisfied customers
Had new tires installed on 2006 330i red light for low tire
had new tires installed on 2006 330i red light for low tire came on cant reset it … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
My e90 330i is hard to start in the morning after sitting
my e90 330i is hard to start in the morning after sitting all night. After 1st start, starts after that are normal. … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have a 2001 BMW 330i sedan and I did replaced the engine
I have a 2001 BMW 330i sedan and I did replaced the engine rear main seal and the torque converter as well and the input shaft seal of the transmission, after putting all back together as soon as I st… read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
2003 BMW 330i: inline..It cranks/turnsover but will not run
I have a 2003 BMW 330i inline 6. The car will not start. It cranks/turnsover but will not run. I took a spark plug out and was able to confirm that there is spark. The plugs are dry, which suggest to … read more
Lee
Lee
Technical or Trade School
366 satisfied customers
BMW 330i: I have a 02 330i with a rough idle problem. It has
I have a 02 330i with a rough idle problem. It has been in the shop to replace the crankcase valve and I have replaced the spark plugs also.It runs fine at highway speeds but will start to idle rough … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
BMW 330i BMW 2002 330I , KEEP GETTING E3-E4 CODES, CHANGED
BMW 2002 330I , KEEP GETTING E3-E4 CODES, CHANGED O2 INBOARD SENSORS ALREADY. CAN NOT FIND ANY VACUMN LEAKS. DID HAVE THE FUEL FILTER CHANGED ABOUT 6 MTS AGO. WR… read more
Roger
Roger
BMW Master Tech
Bmw STEP Training
3,050 satisfied customers
BMW 330i E46 M54 3.0 COMPLAIMENT .... CHECK ENGINE LIGTH
BMW 330i E46 M54 3.0 COMPLAIMENT .... CHECK ENGINE LIGTH CODES: 2716 oxigen sensor heater after cat conv bank 1 activation 2724 oxigen sensor heater after cat conv bank 2 signal 2882 mixture preparati… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2002 bmw 330i: it has check engine code po455- large evap leaking
hi, i have 2002 bmw 330i. it has check engine code po455- large evap leaking. i replaced the gas cap and reset check engine , but it goes back again, please help… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have a BMW 330i 2003. Last year the transmission went ...
I have a BMW 330i 2003. Last year the transmission went out. I had it fixed and it was running fine. Tonight coming home from work the light came on and it once again drives like it is stuck in anothe… read more
Roger
Roger
BMW Master Tech
Bmw STEP Training
3,050 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