Question about 2003 GMC Yukon

2 Answers

I have 20-codes pulled on my 2003 GMC Yukon, does that mean a harness issue could be the problem?

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • GMC Master
  • 2,559 Answers

Depends on the codes but it is a good indicator that either a harness or ecm has failed.

Posted on Jan 04, 2017

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • GMC Master
  • 9,771 Answers

Depends on the codes. More likely the ECU is toast.

Posted on Jan 04, 2017

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Code r2r2 on gmc 2003 Yukon The Why code is on tge 2003 Yukon


Where did you pull this code from ? Engine computer , radio etc.... I have factory service info,.no such code !

Sep 01, 2016 | 2003 GMC Yukon

1 Answer

P2125. 2003 Yukon. Replaced wiring harness. not voltage from app


This code can also mean there is a failed throttle actuator or failed throttle position switch. Not sure what you mean by "app no voltage". Was a meter used to confirm no power at the switch?

Jul 26, 2016 | 2003 GMC Yukon

1 Answer

Where is the fuse to the alarm for a 2003 gmc yukon


2003 GMC Yukon Car Security Wiring Diagram

www.modifiedlife.com/2003-gmc-yukon-car-security-wiring-diagram/
Whether your an expert GMC Yukon car alarm installer, GMC Yukon ... GMC Yukon, a 2003 GMC Yukon car alarm wiring diagram can save yourself a lot of time. .... Alex, double check ALL your fuses and make sure ALL your fuses are good.

How to Disable a Car Alarm - YouTube

? 2:41
https://www.youtube.com/watch?v=EKbjYlK4g0E
May 13, 2009 - Uploaded by ehowauto
In order to disable a car alarm, an individual will have to locate the horn that was put in and disconnect it, or ...

GMC out alarm fuse Questions & Answers - Fixya

www.fixya.com/tags/out_alarm_fuse/browse/gmc
If you have an alarm installed remove the in line fuse from the alarm and see if that ...Multiple issues with my 2003 GMC Yukon XL and hope someone can offer .

Jan 20, 2016 | GMC Cars & Trucks

1 Answer

What does code co690 mean on a gmc yukon denali 2001


Damper Control Relay Circuit Malfunction

Can be a host of things, I heard that GM had wire harness issues on some of the trucks/SUV . Might check to see if the CPU

Dec 23, 2014 | 2001 GMC Yukon Denali

1 Answer

After changing the battery in my 2003 gmc yukon denali I have issues with computer not letting the truck run correctly, any help


Un plugh negative connection of battery cable at night keep it as it is for next morning and connect it start the vehicle but be sure dont switch on the Aircon for next 20 min. if your problem solve other check the fuses and if not ok contact to the dealer.

Jun 08, 2014 | 2003 GMC Yukon Denali

1 Answer

2001 gmc yukon engine revs up at 20 mph changed trans filter (screen) still have same problem


If you mean it "flares" trans may have major issues. If you mean it fails to shift to next gear, likely bad shift solenoid, easily changed by dropping trans pan.

Feb 15, 2014 | 2010 GMC Yukon XL

2 Answers

Reduced Engine Power message comes on along with the engine light. It does this off and on. Sometimes it runs good and sometimes it barely runs at all. What causes this?


need to have vehicle scanned the trouble codes will be stored in the computer most auto stores offer thi service for free check ur local area there are a few hundred different codes or problems that can cause ur problems and being interment can also be an electrical connection/harness problem

Jun 28, 2011 | 2003 GMC Yukon

1 Answer

How do you reset the check engine light on a 2003 gmc yukon xl


the check engine light means you have a trouble code in your vehicles computer. After fixing the problem with the yukon the check engine light can be reset sometimes by disconnecting the battery and disconnecting the ECM fuse. Although some parts stores are known to check your codes for free they might also clear them with a scan tool.

Feb 26, 2010 | 2003 GMC Yukon XL

1 Answer

I have powerdowns in my 2003 Yukon Denali at various times.


THE PROBLEM IS IN THE THROTTLE BODY UNIT OR WIRING HARNESS PLUG

Jan 05, 2009 | 2003 GMC Yukon Denali

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

16 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...