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Old 07-10-2013, 09:02 PM   #1
skep18
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Default HELP: ABS & Brake Light On After Brake System Swap

I swapped a brake system from a 2006 STI and am not sure what's going wrong. I got the DTC Code 37 and the ABS and Brake lights are on, as described in ABS DTC Code 37 (below)



I'm thinking I might have air in my system somewhere around the ABS system, between the BMC and the calipers?

When I installed the brake system, everything got air into it most likely... I disconnected the hard lines from the BMC, not the ABS system. All I did was bleed the brakes at the calipers, not at the BMC or ABS Module.

Does anyone have any input as to...

A) What could be causing my lights?

B) I suspect bubbles in the inlet valve maybe the the culprit. Did bleeding the way I did possibly cause this?
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Last edited by skep18; 07-12-2013 at 09:56 AM.
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Old 07-11-2013, 07:03 AM   #2
A-man07
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Did you cause a leak in the ABS line?
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Old 07-11-2013, 08:10 AM   #3
skep18
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Quote:
Originally Posted by A-man07 View Post
Did you cause a leak in the ABS line?
I don't think so. I am going to give it all a good look over today. I'm really suspicous that there would actually be anything wrong with the ABS Block/Module/Thing itself as I have never experienced that... ever. But like mentioned, I'm guessing something isn't right in the lines somewhere...

Having said that, I get pretty firm brakes. Coming from 4/2 pots, the brake pedal is a little bit more squishy, but I attributed that to the extra piston movement with the bigger calipers? Maybe I'm wrong though and there's air somewhere in there...
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Old 07-11-2013, 09:15 PM   #4
skep18
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I bled the brakes and got a LOT of air out. Note to self, just gravity bleed from now on. Vaccum bleeding sucks.

Unfortunately, the lights are still on....

HALP!!!

Looks like I may need to pay the dealer $110 to read my codes and "diagnose" what is wrong...
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Old 07-11-2013, 09:16 PM   #5
skep18
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Also, I checked all my clear fuses and replaced 2 of them... No luck...
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Old 07-12-2013, 09:05 AM   #6
lts
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You may have a pinhole leak or air still in the system. Had the same issue before on a different car and it took a few days for the leak to manifest itself. Check all corners for brake fluid around the calipers/wheels. Or maybe the ABS system needs a good kick in the head. Good luck to ya
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Old 07-12-2013, 09:39 AM   #7
skep18
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Last night, I did bleed the brakes and did get a lot of air out and am pretty confident there's no air in the lines now, but alas, still the light is on....

Quote:
Originally Posted by lts View Post
You may have a pinhole leak or air still in the system. Had the same issue before on a different car and it took a few days for the leak to manifest itself. Check all corners for brake fluid around the calipers/wheels. Or maybe the ABS system needs a good kick in the head. Good luck to ya
I did find a small leak on a distributor portion of the brake system while bleeding last night, but it only seems to be leaking when I'm bleeding (probably cuz I was pushing so much fluid through) but I tightened that down. I need to get some liquid teflon to stop the leak if it persists.

Leak here:


But this shouldn't cause the ABS light to some on, right?

Thanks for the feedback though. I'm without a clue aside from a possible fault within the ABSCM or the ABS block, which I'd rather not replace... If I don't have to.
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Old 07-15-2013, 12:25 PM   #8
AliBenn
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your ABS lite would not come on if you have air in the syst nor if you have a leak
hell, i had my hard lines in the wrong holes on the abs pump....and no lite.

those codes are saying there is no communication(for whatever reason) between the abs computer and abs pump.

could be as simple as a re-set/re-callibration of the system.

i know i use mobile airbag/electronics companies for my work that specialize in this sort of thing......but in houston.
have your tried to look up a company/vendor like this?
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Old 07-16-2013, 10:09 AM   #9
skep18
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Quote:
Originally Posted by AliBenn View Post
your ABS lite would not come on if you have air in the syst nor if you have a leak
hell, i had my hard lines in the wrong holes on the abs pump....and no lite.

those codes are saying there is no communication(for whatever reason) between the abs computer and abs pump.

could be as simple as a re-set/re-callibration of the system.

i know i use mobile airbag/electronics companies for my work that specialize in this sort of thing......but in houston.
have your tried to look up a company/vendor like this?
I have not. By now, I have bought and replaced the whole ABS pump/ABSCM...

What sort of vendors do this besides the stealership?

Thanks for the reply!
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Old 07-16-2013, 12:23 PM   #10
AliBenn
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im almost positive that the ABS module WILL need to communicate with the ECM inside the car under the passenger's feet.
i spoke to 2 mechanics and both say just needs re-programming.

as far as mobile airbag/ABS service vendors........
would do a search in your area/city like "mobile airbag services"
if that yields nothing, call a reputable, busy bodyshop preferrably a 'network' shop for insurance companies. these type of bodyshops always use these vendors bc faster/cheaper than taking a veh to a dealership everytime.
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Old 07-16-2013, 03:53 PM   #11
skep18
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Quote:
Originally Posted by AliBenn View Post
im almost positive that the ABS module WILL need to communicate with the ECM inside the car under the passenger's feet.
i spoke to 2 mechanics and both say just needs re-programming.

as far as mobile airbag/ABS service vendors........
would do a search in your area/city like "mobile airbag services"
if that yields nothing, call a reputable, busy bodyshop preferrably a 'network' shop for insurance companies. these type of bodyshops always use these vendors bc faster/cheaper than taking a veh to a dealership everytime.
GL
pm if more questions!
Awesome.

The ABSCM is plugged in to the ECM in the passanger's side, but what you're saying is something probably needs to be reset?

I'll do a search and make a couple of calls. Its driving me nuts not having ABS over something so silly as this, lol.
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Old 07-16-2013, 04:46 PM   #12
Zefy
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do not put teflon tape or anything on the brake fittings. They're compression fittings... The threads provide no sealing capabilities, only clamping force.

Second, the code may have been thrown by something you were doing but you've finished the job now and the code is stored in the computer. Clear it with either a code reader or you can disconnect the battery to reset everything.

If it comes back on, the code is real.
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