Some weird issues on a 02 Duramax - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JohnC · 10-09-2010, 04:09 PM

Hey guys. We have a 02 2500HD Duramax at our store. This has been an issue for a while, and I'm not the one that drives it everyday so it doesn't really bother me. However the last few weeks I have driven it more, and it really bugs me now. The emergency brake light, and the ABS light will come on and stay on for a long period of time. I haven't found anything that would trigger them to come on. I was wondering if anyone knew if it was a sensor that is bad, or going bad. It doesn't seem to have any affect on the truck just the lights stay on.

Also the tow/haul button on the shifter doesn't seem to work anymore. It was working fine, and now nothing. I haven't tore the steering column cover apart to see if maybe a wire has broke or come loose, just thought I would see if anyone else has had a similar problem, and narrow down my search.

Thanks.

clinebarger · 10-09-2010, 06:13 PM

Quote:

Originally Posted by JohnC

Hey guys. We have a 02 2500HD Duramax at our store. This has been an issue for a while, and I'm not the one that drives it everyday so it doesn't really bother me. However the last few weeks I have driven it more, and it really bugs me now. The emergency brake light, and the ABS light will come on and stay on for a long period of time. I haven't found anything that would trigger them to come on. I was wondering if anyone knew if it was a sensor that is bad, or going bad. It doesn't seem to have any affect on the truck just the lights stay on.

Also the tow/haul button on the shifter doesn't seem to work anymore. It was working fine, and now nothing. I haven't tore the steering column cover apart to see if maybe a wire has broke or come loose, just thought I would see if anyone else has had a similar problem, and narrow down my search.

Thanks.

Need codes from the EBCM (ABS) before I chould help on the brake/ABS lights.

The wire/s going the Tow/Haul switch are most likely broken inside the shifter handle. Replace the shifter handle.

JohnC · 10-09-2010, 06:57 PM

OK thanks. I'll run it by the auto parts place, or the shop across the street and see if they can pull the codes for me.

northerngmc · 10-09-2010, 07:04 PM

Some of these trucks have a problem with the ground to the brake computer. The ground cable is on the bottom of the cab, right by where your left foot would sit when driving. Crawl under and take the nut off, clean up the cable end and contact points and reinstall.

I had this problem on my 04 and it seems to be common and will throw the Brake light in the dash on.

JohnC · 10-10-2010, 02:01 PM

Thanks I'll check that out as well.

67ChevyRedneck · 10-11-2010, 07:09 PM

I had the same problem with my Tow/Haul. Pretty common issue. The wires eventually break from all of the up down action of the shifter. There is just enough wire length to take it apart and reconnect them. Just make sure to unhook the battery so you don't accidentally take an airbag to the face

JohnC · 10-11-2010, 08:41 PM

Quote:

Originally Posted by 67ChevyRedneck

Just make sure to unhook the battery so you don't accidentally take an airbag to the face

Thanks for the advice. That wouldn't be a good thing.

chevydog66 · 10-13-2010, 11:49 AM

The abs light could be a speed sensor, either on the front wheels or in the tail of the trans. Also check out www.dieselplace.com for all of your Duramax questions.

JohnC · 10-13-2010, 06:28 PM

Cool thanks for the link to the site.

10-09-2010, 04:09 PM	#1
JohnC Registered User Join Date: Feb 2009 Location: Oklahoma Posts: 7,461	Some weird issues on a 02 Duramax Hey guys. We have a 02 2500HD Duramax at our store. This has been an issue for a while, and I'm not the one that drives it everyday so it doesn't really bother me. However the last few weeks I have driven it more, and it really bugs me now. The emergency brake light, and the ABS light will come on and stay on for a long period of time. I haven't found anything that would trigger them to come on. I was wondering if anyone knew if it was a sensor that is bad, or going bad. It doesn't seem to have any affect on the truck just the lights stay on. Also the tow/haul button on the shifter doesn't seem to work anymore. It was working fine, and now nothing. I haven't tore the steering column cover apart to see if maybe a wire has broke or come loose, just thought I would see if anyone else has had a similar problem, and narrow down my search. Thanks.

10-09-2010, 06:57 PM	#3
JohnC Registered User Join Date: Feb 2009 Location: Oklahoma Posts: 7,461	Re: Some weird issues on a 02 Duramax OK thanks. I'll run it by the auto parts place, or the shop across the street and see if they can pull the codes for me.

10-09-2010, 07:04 PM	#4
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Some weird issues on a 02 Duramax Some of these trucks have a problem with the ground to the brake computer. The ground cable is on the bottom of the cab, right by where your left foot would sit when driving. Crawl under and take the nut off, clean up the cable end and contact points and reinstall. I had this problem on my 04 and it seems to be common and will throw the Brake light in the dash on. __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

10-10-2010, 02:01 PM	#5
JohnC Registered User Join Date: Feb 2009 Location: Oklahoma Posts: 7,461	Re: Some weird issues on a 02 Duramax Thanks I'll check that out as well.

10-11-2010, 07:09 PM	#6
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Some weird issues on a 02 Duramax I had the same problem with my Tow/Haul. Pretty common issue. The wires eventually break from all of the up down action of the shifter. There is just enough wire length to take it apart and reconnect them. Just make sure to unhook the battery so you don't accidentally take an airbag to the face __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 10-11-2010 at 07:09 PM.

10-13-2010, 11:49 AM	#8
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Some weird issues on a 02 Duramax The abs light could be a speed sensor, either on the front wheels or in the tail of the trans. Also check out www.dieselplace.com for all of your Duramax questions. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up Last edited by chevydog66; 10-13-2010 at 11:51 AM.

10-13-2010, 06:28 PM	#9
JohnC Registered User Join Date: Feb 2009 Location: Oklahoma Posts: 7,461	Re: Some weird issues on a 02 Duramax Cool thanks for the link to the site.

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