Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
I hv code came spn 1321 spn 9 red engine light. Sorry the
Sorry the code spn1231 fmi 9 Freightliner cascadia 2014 … read more
Roy Belding
Roy Belding
7,582 satisfied customers
RECIEVING CODE SPN1231FMI9 ON A 2015 cASCADIA WITH DD15.
RECIEVING CODE SPN1231FMI9 ON A 2015 cASCADIA WITH DD15 … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2011 freightliner Cascadia with a ECU1 spn 1231 fmi 09. Vin
2011 freightliner Cascadia with a ECU1 spn 1231 fmi 09. Vin ax6373 Been working on tracking down this issue but need more steps in the troubleshooting.Have cleared faults. Comes right back won't clear… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
Require freightliner truck expert. Has to be familiure with
has to be familiure with Freightlinger CANBUS system … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
Son 1231 and son 625 dash codes, check Angie and stope
Son 1231 and son 625 dash codes, check Angie and stope engine light on. Reduced engine power in 10th gear … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
I have a fault code SPN 1231/FMI 9 DescriptionThis Fault
i have a fault code SPN 1231/FMI 9 DescriptionThis Fault Code Sets when the Motor Control Module (MCM) Stops Receiving Messages from the Aftertreatment Control Module (ACM) … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
I'm troubleshooting code 1231 on a 2011 western star with a
Hi, I'm troubleshooting code 1231 on a 2011 western star with a dd15 engine. Truck is deleted. I need troubleshooting help specific to Western Star because there seems to be to many differences from f… read more
Roy Belding
Roy Belding
7,582 satisfied customers
I have 2 codes I'm trying to solve, but don't know what they
I have 2 codes I'm trying to solve, but don't know what they mean or where to start. … read more
Roy Belding
Roy Belding
7,582 satisfied customers
I HAVE NO COMMUNICATION WITH AFTER TREATMENT CONTROL BUT
I HAVE NO COMMUNICATION WITH AFTER TREATMENT CONTROL BUT TRUCK HAS BE DELETED PUT WIRE HARNESS ON SAME PROBLEM … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Heavy duty truck repair on freightliner dpf system. Getting
heavy duty truck repair on freightliner dpf system … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
My truck 2013 cascadia dd15 spn 1231 fail 9 spn 625 fail17
My truck 2013 cascadia dd15 spn 1231 fail 9 spn 625 fail17 spn 625 fail 18 … read more
Roy Belding
Roy Belding
7,582 satisfied customers
2012 Freightliner dd15 I have Data bus error 09 SPN 0011231.
2012 Freightliner dd15 I have Data bus error 09 SPN(###) ###-#### Engine turns over but won't start … read more
Roy Belding
Roy Belding
7,582 satisfied customers
I need help w 2 code I have a Cascadia w dd15 2012 model
hello, I need help w 2 code I have a Cascadia w dd15 2012 model firt code is 1231 pid0 fmi9 in the other 625 acm pt-can dmi message not received or has stopped arriving, i take to freightliner dealer … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
Have a 2012 Freightliner with a dd15. Have an eng 1 1231 spn
Have a 2012 Freightliner with a dd15. Have an eng 1 1231 spn fail 9 and fault 1 code. Filled with def about 20 min ago but def gauge is blinking red like it's empty … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
ECU 1, 1231 SPN, Fail 19 / ECU1, 625 SPN, Fail 17 / EEC 61,
ECU 1, 1231 SPN, Fail 19 / ECU1, 625 SPN, Fail 17 / EEC 61, 639 SPN, Fail 07 / 2012 Cascadia DD15 Low Def Indicator has defrayed engine while Def tank is full. … read more
Roy Belding
Roy Belding
7,582 satisfied customers
It is a Detroit in a 10 western star. I have codes spn 625
It is a Detroit in a 10 western star. I have codes spn 625 fmi 17, spn 625 fmi18 and spn1231 fmi 9 The truck runs about 30 seconds and shuts down unless you hit the overide … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,877 satisfied customers
2012 Freightliner casccadia engine dd15. Changed clutch
2012 Freightliner casccadia engine dd15. Changed clutch automatic transmission after that for fault codes came. Acm pt ca dm1 message has not received or stopped arriving fault codes 625- 9 and 1231- … read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
After the the clutches for transmission was changed I am
After the the clutches for transmission was changed I am getting this fault codes 625 9 and 1231 9 . I changed ACM harness and checked everything it's automatic transmission 2012 cascadia dd15 engine … read more
Roy Belding
Roy Belding
7,582 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.

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:

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

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

11,877 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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