A couple of times in the past month on spirit driving runs I have had Brake System CEL's.

Four errors are thrown:

"Brake Distribution"
"Brake Fluid"
"ABS Failure"
"PSM Failure"

I have an obdII CEL code reader and no codes are stored after I pull the key.

First time this happened I thought that it may be a sign of a battery/electrical issue. I've since changed the battery--it needed a new one anyway.

But this morning it happened 2 times again. Both times same driving situation. I was accelerating at the top of a apex that banked sharply, I was a bit late into the corner at high speed. At the moment I engaged the brakes the CEL's come on. These were fairly aggressive turn in's.

I stopped the car--let it sit for 1 minute restarted and no CEL's. 20 mins later similar apex turn in and brakes...CEL's again.

It almost seems like banking action and a quick change of direction while braking are causing a scenario that the ABS/PSM does not like. My next thought is that there may be air in the master cylinder that is being moved around while banking and the sensor are picking up a pressure varation in the ABS feedback. I bled the lines last fall.

Anyone have any ideas??

 

It could be a turbo leak. Do you get boost over 0.4 bar? I got those errors as well as the overboost error using Durametric.

 

Curious... I have only seen this error under braking on a hard turn... no CEL's on straight hard runs up to .7 bar. Seems to be able to hold boost.

How did you track down the leak?

 

Yes, this happened to me and I had a boost leak. Strange, now everything is ok. If you are boosting to 0.7, you could rule out a boost causing this problem.

 

Saw similar codes on mine for a while. After no luck troubleshooting I eventually got a code for my brake light switch. Replaced that, all the issues stopped.

Justin

 

Where is the brake light switch located?

 

I have the same problem like yours, please be so kind and tell me how did you solve it

 

Fixed!

So for future reference

My car is RWD
I used to have 18" stock size tires, i changed rears to biggies MT 305/35/18

After the change I felt ABS wasnt working properly, when PSM OFF it felt a little better and no light in dash, when PSM ON i got - ABS Failure, PSM failure, Brake distribution failure, go to workshop, etc...

I still had the stockers in front 225/18, new rears are 6% bigger... so over the accepted tolerance, but i used to know that in case of RWD there are no problems...

So, i put back my stock wheels and now seems ok, i still have to test for no dash lights but car brakes well now. I think that with 235/18 in front ( a little bigger wheel ) the car might accept to pair with the bigger 305/35/18 for rear

Dont know if anyone else encountered this scenario and thats why i thought to share