Is There a Diagnostic Tool to Read Bmw Air Conditioner Actuator Failure?

landtank

I'chiliad down in Asheville NC and my truck lost it'due south brakes at around 5700 ft.

Originally I thought it was the MC that I got from Napa a few weeks ago. But another one proved that wasn't the case.

I beleive it's the ABS actuator.

With my son pressing on the brake pedal I become pressure on the inlet of the ABS, confirmed past a spray of fluid when I cleft open the line. Yet with my son holding the brakes on I can loosen both output lines to the forepart calipers at the ABS actuator and go no fluid to pass.

I've got my FSM here and will dive into information technology merely was hoping someone can confirm that fluid should pass.

I can't imagine it not being information technology but I actually have no idea how they are built.

OGBeno

Rick--

Considering that the ABS acutuator is correct later on the MC and all of the brake lines run from it to the calipers, I wouldn't disbelieve something going on with the actuator.

IIRC, the FSM has diagnosis for ABS actuator problems having to do with sure electric connectors, though I don't accept it in front end of me to take a look.

Other than that, I don't know what to tell ya man. The ABS actuator is a very "murky" assy. for Toyota. I've been searching the net for a long time to see if there was any technical information regarding it, just I oasis't found annihilation noun and the FSM is very thin on detail.

That said, I do have a adept ane that I can transport out to you tomorrow if y'all need one. Let me know. New ones from Toyota cost upwards of $1200, IIRC.

-onur

619TOY

With my son pressing on the restriction pedal I get pressure on the inlet of the ABS, confirmed by a spray of fluid when I fissure open the line. However with my son belongings the brakes on I can loosen both output lines to the front calipers at the ABS actuator and get no fluid to pass.

Since fluid has no problem passing under any other circumstances i.e. bleeding brakes without engine running. Your conclusion seems pretty logical to me too. I really assisted the haemorrhage of my brakes with a vacuum bleeder past pressing on the brakes last weekend.

Good luck and let us know what y'all ultimately find.

landtank

Thanks for the offering Beno.

right now I've located 5 through car-part.com inside seventy miles. They all want $100.00 for them. Right now I only take rear brakes and if yous look at how the plumbing is the rear is plumbed in parallel to the actuator while the fronts are in serial. Hopefully i of these units will solve the problem.

landtank

I'grand off on a 70 mile drive to go a used pump. I'll mail service up the results.

theferg

Sorry to kinda hi-jack here, simply I recall it relates.

I've got the mushy-brake syndrome that's been talked nearly a bunch around hither and subsequently reading all the threads about it, I'm starting to believe my issue is the ABS actuator--though I tin't confirm that yet...

So, I saw this asked before, just I didn't really run across an respond for it: What about bypassing the ABS actuator and pulling/bypassing all the ABS stuff? Anyone done this or have any ideas on information technology?

-Ferg-

toylndcrusr

Beno did that, but it will bea little while before he can study on how his brakes work sans the ABS. Other than that , I don't know of anyone who DX'ed the ABS.

peepers

ugh rick. pitiful. that is some hilly state down there. i was simply in that location on our drive to austin. gorgeous. do let u.s. know how the actuator works out. i have a used ane coming from cruiserparts this week. i am hoping information technology is the magic bullet i accept been looking for.

be safe!

OGBeno

Beno did that, simply it will bea little while before he tin can written report on how his brakes piece of work sans the ABS. Other than that , I don't know of anyone who DX'ed the ABS.

I've been running without ABS for virtually two years at present. The sensors are still in place just the wires are clipped and have been removed from their routings back up to the ECU.

I recently did take the ABS actuator out of the engine bay. All of the brake lines leave the MC and go into the ABS actuator and and then go from there to their relative calipers. When the rig is upward and running here pretty soon, information technology volition be the showtime time for me running the truck with the brake lines straight from the MC to the corresponding calipers. This will also exist the first time bleeding the brakes without a ABS actuator for them to become through. I am hoping that this will really make the restriction bleeding process easier and less troublesome in the long run.

I'll study dorsum in one case the truck is up and running.

-onur

concretejungle

not that information technology really relates to this thread, but i too was running without ABS for months. It was due to my skillz at cut siezed bolts out of the swaybar and besides advisedly missing withal cut the ABS wire in half. I felt no real threat at running around without the ABS until information technology rained or we got some frozen stuff. At that betoken, i realized that ABS was of import and spliced the wires back together.

I gauge the point is for y'all southwest folk, ABS isn't that large of an consequence. But for those MASSholes, i'chiliad sure it is!!

4WD Toyota Owner Magazine

Someone posted recently virtually how he fixed his mushy brakes by replacing the actuator. FWIW.

theferg

Someone posted recently about how he fixed his mushy brakes by replacing the actuator. FWIW.

This thread and that thread are why I'd like to know if it tin can but be bypassed...

-Ferg-

landtank

I'thousand at a local guys business firm and the actuator did not set up the problem equally well as te ABS controller. My trouble is that I has no front brakes at all. I did take force per unit area on the inlet to the actuator but nothing flowing out. Right now the truck is at the dealer every bit I'm clueless to what the problem is and I still have a 15 hour drive home.

One thing I did find was a bad ground for the excursion. I was measuring only 10.0v dc betwixt power and ground on the actuator plug.

stevek

I'm at a local guys firm and the actuator did not fix the problem as well as te ABS controller. My problem is that I has no forepart brakes at all. I did have pressure on the inlet to the actuator merely cipher flowing out. Right now the truck is at the dealer as I'thou clueless to what the problem is and I still have a 15 60 minutes bulldoze home.
Ane thing I did find was a bad ground for the circuit. I was measuring only 10.0v dc betwixt ability and ground on the actuator plug.

Whew...if yous are clueless I dont know how much I would bet on the Toyota dealer!

landtank

I'thousand at present at a hotel and I did talk with the tech every bit he saw a lot of fluid all around and I explained that I had done a few things and he's now going to run some diagnostics.

He should be able to track downward the trouble with the specialty tools the dealers has over a guy with a 65 piece Craftsman tool kit and a xiv YO pressing the brake pedal.

Cattledog

Rick,

I just want to understand correctly, You have rear brakes, non just the cable e brake? This is really foreign.

If yous lock the middle diff, does the front brake state of affairs change? Idea being that the ABS ecu is shut off.

The fact that y'all have rear brakes vs forepart sounds more like the ABS ecu is seeing a false slip state of affairs. And the fact you lot accept replaced the actuator and MC.

What was happening when did the fronts failed?

landtank

yes rear brakes only.

I was driving downward hill with the eye locked, ABS off, and one push was fine and the next one went to the floor. No fluid loss and no pressure at the front end calipers.

I got off the hill in depression range and first gear.

If you look how the rear is plumbed you'll meet that the actuator is in parallel to the rear brakes while the front is in series.

The rear line from the MC runs downwards to a "T". One side of that "T" goes back to the LSPV the other side goes to the actuator input and then the output runs back to the LSPV. Those are the two lines going into the LSPV. And so fifty-fifty if in that location is a blockage in the actuator in that location would be pressure to the rear from that kickoff line that runs straight dorsum the to LSPV from the "T".

The actuator looked like information technology has iii solenoids and it seems like information technology's always in a active situation preventing sideslip only instead of pulsing information technology's always on. The thing is that I can get the ABS to activate nether hard braking even though I know it's non slipping and in that location is no codes for the arrangement. I did unplug the actuator and information technology didn't brand a difference but did light the ABS light.

Cattledog

Lamentable man I am out of ideas.

I am a bit shocked that the failure situation, nice driving and quick thinking.

I assume you were checked the abs wiring harness for shorts when you plant the bad basis.

toylndcrusr

Rick,
Sorry to hear about your troubles. That is the weirdest brake failure I e'er heard of. I hope the dealer gets you back on the road shortly. Oh, BTW, if y'all have AAA, I call up they have some kind of insurance or something if your travel plans get screwed up due to mechanical problems.

landtank

My thought was that the obvious possibility was a supply i and I was checking both 12v and ground and there was a ground issue. Unfortunately it didn't make a difference.

Is There a Diagnostic Tool to Read Bmw Air Conditioner Actuator Failure?

ABS Actuator failure? (i Viewer)

landtank

619TOY

landtank

landtank

theferg

toylndcrusr

peepers

concretejungle

4WD Toyota Owner Magazine

theferg

landtank

stevek

landtank

Cattledog

landtank

Cattledog

toylndcrusr

landtank

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