GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I bought a wrecked 2014 GMC Terrain. I have since changed…

I bought a wrecked...

I bought a wrecked 2014 GMC Terrain. I have since changed all air bags and put a new front clip on the car. I was able to erase all the diagnostic codes except for 3. They are U0126-00, U0415-00, and U0100-00 and the service stabilitrak and service powersteering lights are on in the heads up display area. I've tried to reprogram the steering wheel angle sensor module and I get confirmation that the steering wheel angle has been reprogrammed but the code doesn't erase. I've also been able to erase the U0100 code but after I drive vehicle it comes back as a code. I don't feel anything wrong with the steering and the car runs and drives perfectly. I would just like to get all the codes cleared.

Mechanic's Assistant: When was the fluid last checked? Have you heard any whining noises while turning the wheel?

There is no fluid. It is and electric power steering system

Mechanic's Assistant: Are you fixing your Terrain yourself? What have you tried so far?

Yes. I am fixing myself. I have my own computer. I have checked all the wires coming from the power steering pump and they all look fine. I've disconnected them and reconnected them hoping for loose connection but nothing

Show More
Show Less
Ask Your Own GMC Question
Answered in 4 minutes by:
3/17/2018
JFN1
JFN1, ASE Certified Technician
Category: GMC
Satisfied Customers: 5,628
Experience: GM Master Technician
Verified

U codes are communications codes. U0100 means lost communication with ECM. U0126 is lost communication with steering angle sensor. U0415 is invalid EBCM data received.

So, those correlate with the warning messages and symptoms you're having. Is it possible that the EBCM (ABS computer) got damaged in the accident and needs replaced?

Ask Your Own GMC Question
Customer reply replied 1 month ago
I suppose it's possible. I was able to reset all the ABS codes so I ruled that out. I changed all airbags and seatbelts to get all the codes erased. Where is the ABS computer located?

The EBCM is attached to the ABS electrohydraulic unit, right next to the master cylinder under the hood. This computer also integrates with the electronic power steering and uses the steering angle parameter for stability control, so I think all of these concerns are somehow related.

Ask Your Own GMC Question
Customer reply replied 1 month ago
Yeah, when I was checking all the wires from the electric power steering unit I noticed that's where they went, to the unit behind the master cylinder. I just wanted to confirm that's where the EBCM was. Alright, I will look at changing that out. There's no obvious signs of damage but you never know when something has been in an accident. Thank you

You're welcome!

Please take a moment to rate my answers by clicking on the stars at the top of the page, that's how I get compensated. If you need more help, just let me know. I am happy to follow up with you.

JFN1
JFN1, ASE Certified Technician
Category: GMC
Satisfied Customers: 5,628
Experience: GM Master Technician
Verified
JFN1 and 87 other GMC Specialists are ready to help you
Ask your own question now
Was this answer helpful?
Ask JFN1 Your Own Question
JFN1
JFN1
JFN1, ASE Certified Technician
Category: GMC
Satisfied Customers: 5,628
5,628 Satisfied Customers
Experience: GM Master Technician

JFN1 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:

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:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,696 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,557 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

583 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

259 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

George H.

George H.

ASE MasterTechnician

227 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

218 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

< Previous | Next >

Related GMC Questions
2001 yukon Denali 6.0. Power steering shaft pulley shaft
2001 yukon Denali 6.0. Power steering shaft pulley shaft broke. Replaced pump, still no power steering. Put a second pump on, still no power steering. Fluid doesn't move in reservoir. What's my next s… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
25 satisfied customers
Where is the onstar gps located in a 2017 terrain? My
Where is the onstar gps located in a 2017 terrain? My … read more
Todd Green
Todd Green
Associate
3 satisfied customers
I don't think my fan is working. 2013 Terrain. I'm trying
There is a knocking coming from somewhere in the engine compartment. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,042 satisfied customers
I have lost all audio in my 2015 Terrain SUV. All the
I have lost all audio in my 2015 Terrain SUV. All the displays work but I have no sound, no radio, CD even the turn signals and back up alarm are silent. Is this just a switch I'm not aware of, or is … read more
Todd M
Todd M
Owner
ASE Certification
1,710 satisfied customers
I have a 2014 GMC Terrain with about 80,000 miles on it. It
Hi I have a 2014 GMC Terrain with about 80,000 miles on it. It has just recently started making a tapping noise in the engine,. The tapping speeds up and slows down when I speed up or slow down. It's … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,696 satisfied customers
Here again about the EBCM change on the 2014 GMC Terrain
Steve here again about the EBCM change on the 2014 GMC Terrain that was recently repaired. I swapped out the EBCM with a 2011 Terrains, the same car I took all the parts off of and now I have one code… read more
JFN1
JFN1
ASE Certified Technician
5,628 satisfied customers
Where is the over ride for the gear shift on a 2016 terrain?
where is the over ride for the gear shift on a 2016 terrain? … read more
JFN1
JFN1
ASE Certified Technician
5,628 satisfied customers
I have a GMC Terrain and I'm getting a message to service
I have a GMC Terrain and I'm getting a message to service the stilbili track, then the all wheel drive comes across as off. It is chugging when this is taking place and the All wheel drive message com… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,696 satisfied customers
2014 GMC Terrain Denali. Dealer says "very small leak in
2014 GMC Terrain Denali. Dealer says "very small leak in transfer case input seal". Very expensive repair. Any advice? … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I have a 2014 GMC Terrain Denali with 52,000 miles on it and
I have a 2014 GMC Terrain Denali with 52,000 miles on it and my side detection light is staying on at all times... weather the vehicle is on or off..... It is causing all of the electrical turn on and… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,696 satisfied customers
I have a problem with an 2014 GMC Terrain ABS system Im
Hello I have a problem with an 2014 GMC Terrain ABS system Im getting an C0035 code. The senser has been replaced … read more
roy
roy
Associate Degree
3 satisfied customers
I need a 2015 GMC Terrain Factory Radio/Nav With UWG Wiring
Mike I need a 2015 GMC Terrain Factory Radio/Nav With UWG Wiring Diagram. just like you sent me in December. Thanks again!… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Have a 2012 gmc terrain. I just replaced the battery in it
Hey I have a 2012 gmc terrain. I just replaced the battery in it and now everything is in metric instead of US. In the menu the option for units is no longer there … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,042 satisfied customers
My 2013 fmc terrain has a really rough idle when started and
my 2013 fmc terrain has a really rough idle when started and kills shortly after. my computer isnt showing a check engine light either so im kinda going about this blind… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,042 satisfied customers
OBDII P0430 $07E8 2013 GMC. Terrain Denali. Nothing yet.
OBDII P0430 $07E8 2013 GMC JA: What is the model of your '13 GMC? Customer: Terrain Denali JA: Are you fixing your Terrain yourself? What have you tried so far? Customer: Nothing yet. JA: Anything els… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
I have a 2012 Terrain SLE. Key fob got washed in washing
I have a 2012 Terrain SLE. Key fob got washed in washing machine and dried in dryer. Replaced battery, but still doesn't work. Any suggestions on what to do next? … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,696 satisfied customers
My terrain is blowing out oil when I start it ,what could be
My terrain is blowing out oil when I start it ,what could be my problem? … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
My Bluetooth wont connect no more. 2010 terrain. Ive tried
My Bluetooth wont connect no more JA: What is the model/year of your GMC? Customer: 2010 terrain JA: Are you fixing your Terrain yourself? What have you tried so far? Customer: Ive tried deleting my p… read more
FixUrNissan
FixUrNissan
Shop Forman / Lead Tech / Parent
Vocational, Technical or Trade Scho
1 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