07 TBSS brake bleed help

[PapaBear]

Well I busted that brake line a couple of weeks ago. The line ran from MC to ABS module. Replaced it, and bled brakes conventionally starting with RR moving closer to MC. I was aware that the ABS module would need to be commanded into an automated bleed by a TECH2 scanner, and it did. A friend came by the house with his TECH2 and hooked it up. It would not allow him to command the automated bleed. Said it could not control the module.......

He suggested triggering the ABS a few times, that sometimes it will bleed itself, so I went around the 'hood braking on some leaves and hit the ABS about a dozen times, and the pedal got better. It's still not 100%, and I don't know what else to do......

Any ideas on how to proceed at this point?

[1998ta__1991rs]

a tech 2 should do it, thats the only way ive heard of it being done

[PapaBear]

a tech 2 should do it, thats the only way ive heard of it being done

Yeah not sure why it wouldn't work. Would command the abs motor but not the module.

[Carlrx7]

did you bleed it after cycling the ABS?

[PapaBear]

Negative sir. Was informed that I shouldn't need to. Do u suggest that? I will do tomorrow regardless.

[Diablo]

If you have any DTC's stored in the chassi module it wont let you auto bleed the system. Some tech 2s need a candy module hooked up to it for late model vehicle in order for them to read also. Year and body type makes a huge diference also.

[PapaBear]

This gentleman is a ASE master tech at a GM dealership. We checked BCM for codes, none present. He was stumped. I'll pass along this info and see what's up.

[Diablo]

Yeah i am also a GM certified technician and i know that tech two in and out lol. Try another tech 2. I promise i wont steer you the wrong way. If he cant figure it out let me know and i would be happy to help you guys find the problem.

[Diablo]

Oh and also the brake bleeding is in the chassi module not the body control module.

[PapaBear]

Yeah i am also a GM certified technician and i know that tech two in and out lol. Try another tech 2. I promise i wont steer you the wrong way. If he cant figure it out let me know and i would be happy to help you guys find the problem.

If I activate the ABS a few times, would that push the air through to the wheels? Would bleeding at the wheels again help?

[Miker]

One time fucked up and let the ABS module go dry.

I bleed the brakes; drove around the block engaging ABS a couple times then bleed again and all was good.

[Diablo]

One time fucked up and let the ABS module go dry.

I bleed the brakes; drove around the block engaging ABS a couple times then bleed again and all was good.

Agreed if you cant do the auto bleed keep engaging the ABS and retry bleeding. If that dosent help you might hav another issue. Also if you have a vaccumme brake bleeder it would help out alot.

[PapaBear]

Damn rain.....really wanted to get this done today.

[TLyons90]

Who need's brakes?!? :joke:

[bababuschka]

Damn rain.....really wanted to get this done today.

I can't concentrate on anything you post....

[PapaBear]

I can't concentrate on anything you post....

Nobody ever did anyway lol

[Carlrx7]

this is perfect weather to test the ABS!

[PapaBear]

this is perfect weather to test the ABS!

Yeah but then she would get wet.....washed it yesterday so she's staying tucked away in the garage. Never buy another black vehicle in my life, mark my words.

[2001hawk]

Try having two at once.

[LXtasy]

you wash a vehicle with water. Rain is water.

[PapaBear]

you wash a vehicle with water. Rain is water.

I actually wash my vehicles with holy water I confiscate from child molesting preachers. Being a cop has its benefits.

[LXtasy]

I actually wash my vehicles with holy water I confiscate from child molesting preachers. Being a cop has its benefits.

+rep :cheers

[PapaBear]

Figured that would work lol. Gotta restore my rep around here. I may be a dumb ass cop that doesn't pay local shops but I can crack a joke with the best of em....