Brake bleed procedure with techstream

We have searched tacomaworld quite a bit and can't seem to find a complete procedure that talks about how to actuate the ABS solenoids for a complete system bleed. and the link to the 05 service manual that we had bookmarked no longer works.

Anyone have a new link to the manuals and/or a procedure for using techstream to bleed the entire brake system?

2008 TRD OR with a vacuum booster

Thanks!

 

Unless you replaced the ABS hydraulic unit or otherwise got air in it there should be no need to do an ABS bleed, standard brake bleeding procedures are generally sufficent for the other components.

 

Isn't it also a good idea to cycle the ABS whilst flushing the brake system to get the old stuff out of the ABS module? Is there an abbreviated procedure in TechStream to do that step? I have TS but have not tried this yet. Or I guess just drive it after flushing and activate the ABS by braking to get some of the new in there.

 

I suppose if you are doing a full flush it would be beneficial to either do an automated bleed or a couple ABS stops to cycle some fresh fluid though it, I was just talking about bleeding the system not doing a flush.

 

Yeah, the OP said complete system bleed, which I interpreted to mean a complete flush. Definitely due on a 2008. It is due on my 2009, at least the rears. I have done the fronts. But my rear wheel cylinder bleed screws aren't in good enough shape for me to take this on until I have all the possible spares I might need on hand.

 

The techstream bleed only works for those with auto LSD.

 

We just finished a frame swap on our truck, so brake system was completely drained. We found the service procedure and with out VSC, the bleeding procedure is normal, it doesn't even require cycling of the ABS solenoids. We followed it (including bleeding of the master), but still have a soft pedal.

cycling the ABS solenoids is all over tacomaworld to get trapped air out of the ABS unit... has anyone actually done this successfully? If so, please share your procedure for a non VSC truck (std vacuum booster)

 

I haven't actually done this yet but the idea is to cycle the ABS to get the air out of the module and circuit, then you will have to bleed all the lines again. Might take more than once... I dunno for sure. I don't have air but I will be doing this one of these days just to flush the old fluid out. I have 2 ways to cycle the ABS. First TechStream... but you don't really need that. The Xtool line of scan tools will cycle the ABS on Tacomas. At least my 2009. I have the version that works with your smartphone, the A30M. While I haven't done the full bleed yet I have connected it to my Tacoma and cycled the ABS just to test the function. It worked fine. Their more $ tablet-based models work too. See the CarCareNut youtube Toyota tech guy for an Xtool demonstration.

$179 Wireless OBD2 Scanner for Android & iPhone, XTOOL Anyscan A30M V2.0 2025 Bidirectional Scan Tool with Free Updates, All System, 23 Resets, CANFD, FCA, Crank Sensor Relearn, Upgraded Ver. of A30

Amazon.com: XTOOL Anyscan A30M Wireless BT OBD2 Scanner (NO Update Fee) for Android & iOS, 2022 Newest Bi-Directional Scan Tool with All Systems Diagnostics, 21 Services, ABS Bleeding, Upgraded Ver. of A30, A30D : Automotive

 

techstream allows you to cycle individual valves along with just the fronts or rears, and all at once. but only for a 2 second window.

so maybe:
1. pump and hold
2. actuate all valves
3. crack a bleeder during the 2 second window (working furthest to closest)
4. repeat for others

thoughts?

 

What do the solenoids do anyways? I assume that they relieve pressure to let off the brake that is locking?

 

I believe that Techstream and maybe also the Xtool have prompts that will guide the operator through the necessary steps and process sequence. One of the techs here can maybe provide more info.

 

I've had a squishy pedal for a while now, it's so annoying, ever since swapping on new calipers. I've bled the shit out of the system multiple times with a vacuum bleeder and no luck. I had a mechanic friend with an expensive scanner cycle the abs pump with no luck. I'm about to rip out ABS entirely and upgrade the MC and booster and be done with it.

All that to say, good luck.

 

part of it may be the 4runner brake upgrade, but seems still seems squishier than it should be

 

My Tacoma brake pedal has always been squishier than I like as compared to my other vehicles. Just the way these things are. One of my main... and few... dislikes. Hope they improve this with the next gen Tacomas... Also hope they give them rear discs, which should help.

 

I fought and fought through this on my departed 3rd gen. I used a generic scan tool to bleed. No dice. I was able to do it with Tech Stream just fine (it walks you through) and I think I still had issues (can't remember if Tech Stream came before or after the dealer trip). At some point I ended up taking it into the dealer and letting them do it. It really wasn't expensive and all was fine after that.

One end is to be bled normally. The other end is bled using the Tech Stream procedure. I believe I found a couple of videos on YouTube detailing how to do it with Tech Stream. It wasn't hard either way. As in, nothing was hard to find.

 

Don't know if it will help but when I had my frame replaced in'16 it came back with spongy pedal and they said it was normal, had two different people work on it and no change even after replacing the master.

Then in'20 I had a mechanic buddy replace wheel bearings, cv shafts, calipers, rotors, pads, and rubber lines in the front, when I got it back solid hard pedal was back.

When I asked about it he just said he gravity bled the brakes cause he had no help.

 

I’ll keep that in mind. I ordered the stuff today to delete abs so I’ll have to bleed everything again.

 

We are going to try this procedure next and see if that helps, seems like it should work

 

What did you order to delete the ABS module? I'm about to rip mine out after dealing with this stupid squishy pedal. I had replaced the MC, then the ABS module trying to trace the squish. Was finally getting a hard pedal bleeding with a coworker and I accidentally let the res go dry and now it's worse than ever. I put air in the new module!

Techstream won't flush it. I get the error "Air bleeding unavailable on this vehicle." So how does the dealer do it?

I'm thinking of just getting two T-junctions and bending all the lines together (front with front, rear with rear, obviously). Then just keeping it plugged in so I don't have any codes.