GMC

GMC Troubleshooting Questions? Ask a Mechanic for Answers

Ask an Expert,
Get an Answer ASAP!

GMC
This answer was rated:

GMC Yukon Denali: 2002 Yukon Denali Air Ride Light on Codes

2002 Yukon Denali Air Ride...
2002 Yukon Denali Air Ride Light on
Codes are as follows;
C0585(left rear solonoid circuit malfunction)
C0590(right rear solonoid circuit malfunction)
C0660(level control exhaust valve circuit malfunction)

My local mechanics scanned and found these codes

Thanks,
DBC
Show More
Show Less
Ask Your Own GMC Question
Answered in 7 minutes by:
11/30/2011
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29,664
Experience: GM Grand Master Technician 2007. 14 year experience.
Verified
Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

Are the rear shocks still connected With the electrical connector at the top on the back?
Ask Your Own GMC Question
Customer reply replied 6 years ago

Update: Apparently someone has already changed the rear shocks to Non-Air which is obviously why the the Service Ride Control Light is on. Please tell me there is a way to bypass it.

 

Thanks,

Duane

use a 2 ohm resistor to bridge the pins in the connector to override the sensor in the shocks.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok I found the wires but there seems to be 2 wired plug and a single black wire in the loom. Do I need to do anything with the single wire?

Thanks,

DBC

No, only the two wires in the connector.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok I've done the splice in with the resistor. Should I have pulled the RTD fuse? I thought I read somewhere to do this(sorry I shouldn't be taking advice from 2 different people). Anyways the Service Ride Control Light came on right away. I reinstalled the fuse and the light now stayed off. I haven't moved the truck yet so not sure if the problem is solved yet? Should I leave the RTD fuse in?

Thanks,

DBC

With no power it will set codes so leave it in and it should stay out.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok I will drive tonight and report back result tomorrow

Thanks,

DBC

Sounds good.
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29,664
Experience: GM Grand Master Technician 2007. 14 year experience.
Verified
Gm Tech (Cam) and 87 other GMC Specialists are ready to help you
Ask your own question now
Customer reply replied 6 years ago
All is well light is off! Thanks so much. Ps my I'm a Christian Musician and my dads a pastor. We do regular events in Calgary
Cool. Gad it works.

Awesome with the music!!!!
Ask Your Own GMC Question
Customer reply replied 6 years ago

Hello again,

Where can I find my VSS wire(2002 denali)

Thanks,

Duane

The best place is a purple white wire in the red ECM connector, pin 21.
Ask Your Own GMC Question
Customer reply replied 6 years ago

silly question but how do you remove the ECM cover? Also do you have any experience with the PAC Interfaces? I just wired a OS1 and OEM1 but have no audio

If you lift up the front(rad) side then you can unhook the front and slide the top rear to unhook it.

I have not used either but understand the basics. Did the radio work before removal?
Ask Your Own GMC Question
Customer reply replied 6 years ago
oh by the way I have the 6.0 litre. Pioneer forum claims its pin 50 fof the red connector??
Customer reply replied 6 years ago
yes factory radio worked fine, I am installing a Pioneer F90BT(which has been tested) its almost like the factory Bose amplifer is not kicking on. Also(and I hope it's just coincidence) but one of my HIDs got knocked out duiring the install
You may need to ask a new question in car electronics of the guys who know those devices better than I.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok so to confirm that VSS wire is definitely PIN 21 in the red connector for an 02 Yukon Denali 60 Litre?

Thanks,
DBC

Yes, that is the vss high signal wire, low signal being the one in pin 20 and the pin numbers are cast into the back of the connector. That I am 100% sure about.
Ask Your Own GMC Question
Customer reply replied 6 years ago
ok thanks
No problem.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok I have the ECM out however I only see 2 long vertical style plugs that are grey(or at least the covers are). How do I access pin 21 and will there be any issues if I unplug anything? Should my battery be unhooked?

Thanks,
DBC

Take both connectors off using a 7mm to release the jack bolt and use the inside cover to see which is red. As for getting at them, you can pop the cover off when you have them lifted up.

No need to remove the battery, just have the key off.
Ask Your Own GMC Question
Customer reply replied 6 years ago

sorry to keep bothering you. I have the red connector out however dont see where the #'s are stampped. Is it under the grey cover and if so how does it come off? Never worked on anything with the ECM before I just don't want to break anything

Thanks,
DBC

The numbers are on the back side and the cover pops off, but you will need to insert a screw driver In the small slots to release it. Often a couple of the legs do break off, not a big deal.
Ask Your Own GMC Question
Customer reply replied 6 years ago

ok so grey cover is off but #'s seem pretty corroded. looking down it looks like going from left to right 21 may be in the right plug. do you know how many in starting at the right plug 21 is and or what color the wire is?

Thanks again,
DBC

There are 80 pins in each plug, if you hold it so the wires come out the bottom and looking from the back, top left to right is 1-20 for top left then top right, 21-40, bottom left 41-60 and bottom right 61-80.
Ask Your Own GMC Question
Customer reply replied 6 years ago
ok thanks again! I've left a msg for the car audio guys re my other problem but haven't heard back yet.
Customer reply replied 6 years ago

Hello,

02 Yukon Denali with factory Bose System. Is the Amp behind the glove box and if so which wire(color/pin#/plug) is the amp turn on wire?

Thanks,

DBC

Customer reply replied 6 years ago

Any idea what wire/pin#color is the amp turn on for the factory bose amp in a 02 Denali?

Thanks,

DBC

Solid orange wire in connector c2 pin A5.
Ask Your Own GMC Question
Customer reply replied 5 years ago

Hey there,

My Service Air Ride Light just came back on. I checked the connection to the resisitors and everything seems fine,. The night before I changed my Fog HIDs to regular bulbs other than that no changes. Any ideas?

Thanks,
Duane

Any idea what codes are set?
Ask Your Own GMC Question
Customer reply replied 5 years ago

No I do not but I'm not sure the codes would be accurate because the Air ride has been bypassed using resistors

Thanks,

Duane

They would be since you only put the resistor in to make it think there is shocks intalled.
Ask Your Own GMC Question
Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 29,664
29,664 Satisfied Customers
Experience: GM Grand Master Technician 2007. 14 year experience.

Gm Tech (Cam) 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

29,664 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
Battery will not charge. new battery and new alternator. The
battery will not charge. new battery and new alternator … read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
99 satisfied customers
I have a brand new battery in but my battery level sits at
I have a brand new battery in but my battery level sits at about 11 on the cluster and won't turn on, if I boost it the truck starts and runs normal but if I turn the truck off the truck immediately w… read more
Mechanic01
Mechanic01
1,703 satisfied customers
New battery drains overnight. No but the battery is new. The
No but the battery is new. The same thing happened before the battery was replaced. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
I just bought a new battery at autozone and they put it in
I just bought a new battery at autozone and they put it in but the next day when I tried to put 2006 gmc envoy into two wheel drive from auto it just flashes and then moves to four wheel drive high. I… read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
It will Not start. We tried a new battery- its not the
We tried a new battery- its not the battery, nothing is corroded … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,410 satisfied customers
Is it normal for a car battery voltage increase after trying
Is it normal for a car battery voltage increase after trying to unsuccessfully start the car and then letting it sit for several moments?… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
Battery fully charged but when the remote is in proximity
battery fully charged but when the remote is in proximity and brake is depressed nothing happens … read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,002 satisfied customers
Remote start won't work-changed batteries in remotes and
remote start won't work-changed batteries in remotes and still no luck … read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,002 satisfied customers
Replaced original battery with an Exide, 18 months later
replaced original battery with an Exide, 18 months later battery will not keep voltage if car sits for 4 days. Replaced battery under warranty from Exide, Worked for another 18 months same problem. If… read more
Todd M
Todd M
Owner
ASE Certification
1,487 satisfied customers
Battery saver light came on. Battery test with the engine
Battery saver light came on. Battery test with the engine off at 12.7 VDC, With the engine running at an idle 15.7 VDC. Trying to locate the issue … read more
Mechanic01
Mechanic01
1,703 satisfied customers
Diesel exhaust system service? speed limited to 4mph and i
diesel exhaust system service? speed limited to 4mph and i am 20 miles from town … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
583 satisfied customers
2013 gmc duramax diesel: service exhaust fluid system
2013 gmc duramax diesel: service exhaust fluid system warning light and states will reduce speed. Filled DEF tank, warning persists … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
583 satisfied customers
Getting a service message on my exhaust fluid system and is
getting a service message on my exhaust fluid system and is transitioning to 65mph … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
372 satisfied customers
Battery is dead all of a sudden. symble on dash = Battery
battery is dead all of a sudden. symble on dash = Battery malfunction It's a 2013 Acadia … read more
AZTechBrian
AZTechBrian
ASE Certified Technician & Shop Owner
Vocational, Technical or Trade School
732 satisfied customers
How much does it cost to replace a timing solenoid exhaust.
how much does it cost to replace a timing solenoid exhaust … read more
Gunvir Singh
Gunvir Singh
1,817 satisfied customers
Battery light was on this am but alt is charging. Battery
Battery light was on this am but alt is charging. Battery was dead but is 6 years old. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Need to know how to reset diesel exhaust fluid system, Yes
Need to know how to reset diesel exhaust fluid system … read more
dustin barnhardt
dustin barnhardt
6 satisfied customers
Need an exhaust pressure differential pipe for a 2013 GMC
need an exhaust pressure differential pipe for a 2013 GMC 3500HD... … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
583 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