[ploney]

Originally Posted by bklynpanman

what about unplugging the clutch position sensor? i'm at work now so i can't go play.. i forget the sequence that activates the hold. brake then clutch in then off the brake?

NOOOOO

The Hill assist only used the applied brake pressure and the brake sensor switch.

No clutch sensors are employed.

Again, I posted the diagram.......

1 second after the brake sensor switch is triggered then the system releases the current applied brake pressure....

[ploney]

Of note, but it won't help us with our 08's, the hill holder clutch in the Forester worked off of the clutch position, and worked perfectly IMHO, no jerking EVAR. Well maybe once or twice while gliding down a hill backwards I had to deal with it.
It only engaged on uphill situtations.

When I orignally read that the 08 STI had this similar feature I was stoked, then I read the specification and tried it out and think there is no comparison to the Forester style......

[RAE129]

jrdriller...email me the diagram and i will post it...rae129@aol.com...or you can use photobucket.com and post it there and then include the link.

[jrdriller]

Originally Posted by RAE129

jrdriller...email me the diagram and i will post it...rae129@aol.com...or you can use photobucket.com and post it there and then include the link.

done, let me know if you don't receive them.

[RAE129]

Still didnt receive. The link above was a little off. please resend to RAE129@aol.com

[RAE129]

Ok jrdriller sent me a few pdf files and i can email them to anyone that needs them. Included are the 4 pages of wiring diagrams for the VDC system

[RAE129]

[RAE129]

[RAE129]

[RAE129]

The other document jrdriller sent is a basic overview of how the system works. That document is about 24 pages long, so i wont post it. I am going to review how the system works and see if there is a way to disable the hill assist.

Let me know if you guys come up with anything in the meantime.

[jrdriller]

OK so i just got home and did some HSA testing in my driveway which has got a decent incline

as mentioned before, Hand brake disables (pull it up until the light comes on is all you need as someone else mentioned here)

pulling fuse 8 (brake lights) disables, but also turns on the ABS/HSA warning light and of course turns off the brake lights so probably not a smart thing to do

and none of the VDC modes disables as we already know

cheers

[RAE129]

These two pages may also be useful

[RAE129]

[jrdriller]

by the way this feature and its problems is not just a subaru issue, the following link to bmw forum sounds an awful lot like this discussion

Hill Assist - Page 2 - BMW 3-Series (E90 E92) Forum - E90Post.com

[halfelite]

Originally Posted by RAE129

Looking at this and knowing that the handbrake disables it there is a ref to handbrake and brake fliud light. Is there a way you can post up that ref also. Seems to me you will just need to ground a pin to disable it. If someone has the whole 08 manual i will host the whole thing.