Scanner for 2001 Yukon ABS?

[turninggrey]

Hello All, and thanks for adding me. I just bought a 2001 Yukon 2WD with the 5.3. It has the C0265 code with the Park and ABS lights.
I have changed the ABS module before on other GM Yukon/Tahoe vehicles, but this one has the back torx T-20 bolt stripped. I think the last guy may have tried it and stripped it.
Looks like I need to drop the valve/motor/module in one piece to get the module off. Of course this means bleeding the system.......
Just so you know, I have checked the 60Amp CB under the hood, as well as the 10Amp fuse in the side of the dash, both were good. I also tightened up the ground on the frame just forward of the ABS assembly.
The way it is, my ABS pump is not running nonstop, so I question whether the pump is good or not.
Since I will need to bleed it, the Alldata DIY online manual refers to a scan tool bleeding procedure. The cheap scan tools I search do not go have ABS for the 2001. Any tips overall on this job? Anyone just running around with no ABS and ignoring the lights?

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

Do you have, or have access to, a quality bi-directional scanner? It does not sound like you do.

If not, I recommend that you get yourself a quality bi-directional scanner to add to your tool box. Then, you will be able to read ALL trouble codes, along with a brief explanation/pointer to the source of your issue. You can test many of the truck's electronic functions with the scanner, in order to determine the source of an issue. You will also be able to reset/delete trouble codes, after taking corrective action. You will literally save thousands of dollars in diagnostic and repair costs over the life of your truck, and you will most likely recoup the cost of the scanner within 1 year.

Yes, while I have not done it personally, folks here often use the quality bi-directional scanner to troubleshoot their braking system and to perform the bleed procedure. Folks like @OR VietVet , @Doubeleive , or @swathdiver will chime in with their thoughts.

The GM Tech 2 was the bi-directional scanner of choice for your truck, and it was used by GM Technicians. It can still be found, though today they are Chinese knockoffs, that generally work as well as the GM ones. You would have to directly reach out to a site like AliExpress.com, and you should expect a cost of about $350 US. Unfortunately, the Tech 2 does not work as a bi-directional scanner with programming capabilities for vehicles manufactured after 2013, as GM changed their programming architecture.

Autel also makes popular bi-directional scanners, and I believe that they would work on your 2001 truck, but I'd like to see one of the Members here confirm that. Autel scanners generally run from $300 US and up, and are generally available. I purchased mine on Amazon.

 

[strutaeng]

I stripped that same torx screws on my 99 Silverado. I removed the mount but it was still too tight.

What i did was eventually drill out the screw head with a Dewalt right angle drill adapter and a short drill bit from Kobalt. Wear safety glasses, of course. I removed thf last 2 screws like that.

I replaced EBCM and my issue went away with the ABS and BRAKE lights on the dash. I didn't have to do any bleeding of the brakes.

If you do need to perform the brake bleeding be the ABS, the little Topdon dongle will do it. It comes with a 1 year free subscription and gas a lot of bidirectional functions. It's like $65 on Amazon last time I checked. Around black Friday it even goes for sale cheaper.

 

[turninggrey]

Hey Guys,
Thanks for the replies. I have a Bluedriver OBD reader that is 2 way and a HF OBD with ABS. AI says neither are bi directional, so I guess I will start with the Topdon.

Strutaeng, are you saying you drilled out the bad torx while it was on the frame?

I stripped that same torx screws on my 99 Silverado. I removed the mount but it was still too tight.

What i did was eventually drill out the screw head with a Dewalt right angle drill adapter and a short drill bit from Kobalt. Wear safety glasses, of course. I removed thf last 2 screws like that.

I replaced EBCM and my issue went away with the ABS and BRAKE lights on the dash. I didn't have to do any bleeding of the brakes.

If you do need to perform the brake bleeding be the ABS, the little Topdon dongle will do it. It comes with a 1 year free subscription and gas a lot of bidirectional functions. It's like $65 on Amazon last time I checked. Around black

 

[strutaeng]

Hey Guys,
Thanks for the replies. I have a Bluedriver OBD reader that is 2 way and a HF OBD with ABS. AI says neither are bi directional, so I guess I will start with the Topdon.

Strutaeng, are you saying you drilled out the bad torx while it was on the frame?

Yessir. By removing that bracket and using the right angle drill and a short drill bit there was enough room, but just barely.

I really didn't want to remove the ABS pump from that manifold the ebcm bolts to.

 

[turninggrey]

Yessir. By removing that bracket and using the right angle drill and a short drill bit there was enough room, but just barely.

I really didn't want to remove the ABS pump from that manifold the ebcm bolts to.

Wow! That seems tight but I did remove the running board and that frees up a bunch of room. So on the Topdon dongle, you were able to run the ABS brake bleed on your 2003? It is so hard to figure out what these readers will do for the various years!!
Back to the ebcm bolts.....when you got the ebcm torx bolts heads removed, did you grab the threads with vice grips to unscrew them?

 

[strutaeng]

Wow! That seems tight but I did remove the running board and that frees up a bunch of room. So on the Topdon dongle, you were able to run the ABS brake bleed on your 2003? It is so hard to figure out what these readers will do for the various years!!
Back to the ebcm bolts.....when you got the ebcm torx bolts heads removed, did you grab the threads with vice grips to unscrew them?

EBCM bolts: correct, spun them out with a small vice grips. Now, I don't know if you live in the rustbelt, so I can't comment on that. There's almost no rust here, except for surface oxidation.

On the Topdon Dongle, I have been able to activate the ABS pump as the special function on both my 99 Silverado and 0= and 06 Suburbans, yes. That was me just messing around with it when I just bought it, like 2 years ago.

Back earlier this year I drained and put fresh fluid on the 99 and 06, and bled them the old fashioned way. I didn't even think to try the ABS bleeding, but I did have any issues. Both of those vehicles are daily drivers.

i even did the 2019 front brake upgrade on the 99 this summer, so another bleeding on the fronts for that.

 

[turninggrey]

Wow. I will give it a try. It’s worth trying.

 

[strutaeng]

Wow. I will give it a try. It’s worth trying.

Also, Dorman sells new stainless steel bolts for the EBCM. They are part number 926-388. I think they are around $20 and are Allen instead of torx.

I think I found similar stainless bolts at a local hardware store that sells specialty hardware near me.