15 replies to this topic

[blkaplan]

I am autoxing a stock c30 this weekend to get a baseline for mods and was wondering if its possible to disable the DSTC. I know you can't with standard buttons. Is there a fuse or breaker that can be removed to disable it?

[flyfishing3]

IIRC there are sensors in the front, rear for yaw, etc. you have to disable those i believe

p2r's have the push the dstc button five times it works iirc.

30forty50.com might have some results also. your sign in here will work there.

[BtownVolvo]

p2r's have the push the dstc button five times it works iirc.

Hmm. I don't think that works for the 30/40/50s. I don't know how many times I pushed that button while I was sitting in traffic and I never got any special message saying it was fully disabled.

[crazykn]

Sounds like my S80 V8,but there's no button for DTSC at all, instead a menu item.

[Emiel]

Drive 50km/h backwards (~30mph). DSTC will go nuts and shut down. Johann knows the exact details.

[Johann]

Yes, repeat the procedure every time you power cycle the car.

Basically the only option is reduced DSTC. If it overheats the brakes it will shut down temporary.
It might interfere with you driving style but you could try and adjust your style to the system as far as possible. The plus side is that traction control works pretty well on these cars because it also functions a bit like an electronic limited slip diff. Downside is that it is difficult to steer the rear.
Don't know about AutoX but on a track it isn't all that bad.

[blkaplan]

Yes, repeat the procedure every time you power cycle the car.

Basically the only option is reduced DSTC. If it overheats the brakes it will shut down temporary.
It might interfere with you driving style but you could try and adjust your style to the system as far as possible. The plus side is that traction control works pretty well on these cars because it also functions a bit like an electronic limited slip diff. Downside is that it is difficult to steer the rear.
Don't know about AutoX but on a track it isn't all that bad.

Hmmm, thats gonna be interesting... I dont think i can go 30mph backwards in the paddock without getting yelled at. hah.

How long do you have to go 30?

[Mesoam]

Please take video of this if you end up doing it...

[blkaplan]

This seems like total shens to me.

[flyfishing3]

when JOHANN speaks, its as if the angels brought down the word of the lord.

so its true.

[Johann]

I didn't come up with that.

http://www.myvideo.d...s_Ford_Focus_ST

3 minutes. Hope you can understand German.

You'll need to change DSTC to reduced mode first and drive 60 km/h (37.3 MPH) in reverse after that for a couple of hundred meters so he says.

[Jardim]

is DSTC in the ECU or is it a whole separate module by itself?

[Hanks]

go 37.3 mph in reverse then slam it into drive, reach 80mph and pull the ebrake. That will turn it off.

[Johann]

is DSTC in the ECU or is it a whole separate module by itself?

It's all tied up. With some models the ECU will go reduced power mode when fiddling with fuses.
With the R's it was possible to disable the Haldex AWD so you can dyno the car on a 2WD dyno but some newer AWD models this isn't possible anymore because the engine won't deliver full power.

[blkaplan]

The auto-x went well. I did 40 in reverse but for not that much distance and it didn't change anything with the DSTC.

The car definitely needs more shock, more spring, more negative camber. Once I got dialed in to the right line for the car it went decently well. If pics surface i will throw em in showroom.

[Matty Moo]

The system generally seems to completely turn itself off if you cut the yaw sensor out of the equation, that seems to be built in and doesn't vary from one manufacturer to the next. Volvo isn't the only one that uses Teves.

I have a switch wired in my Wrangler to disable the yaw sensor that's under the center console, otherwise it will simply sit and not move in deep sand if you aren't in 4lo. On my 300c I can turn the key when doing over 30mph, which cuts the entire system off completely, ABS, traction and stability. On the later models where the key function is disabled people just wire a switch into the yaw sensor.

BUT, everybody seems to have some sort of special dance to go through if you want to disable it and they don't make it well known. The one for my Wrangler is too complex to remember and you have to do it within a certain set amount of time, so I just wired in the switch.