ABS removal.

I want to remove the ABS unit on my 2012 S racebike, but I have run into a bit of at problem.

I have removed the ABS unit including the brake lines and instead fitted some nice Fren Tubo Carbotech Superstock brake lines. I have also removed the complete S ABS wiring loom and instead installed a S non ABS wiring loom.

However, when turning on the ignition the engine warning light and a ABS error message is shown in the dash. No surprise.

The problem is that the DTC level disappears in the dash and only a "-" is shown, indicating that the DTC is not working.

Can I cure this by switching the BBS unit to a S non ABS unit?

To the best of my knowledge, the ECU and the dash are interchangeable from ABS to non ABS models and vice versa, but the BBS is not interchangeable from ABS to non ABS models.

Any thoughts on this ;-)

I apoligize if this topic has been up a 1000 times already, but I couldn't find anything about this using the search option.

Just a thought, but have the wheel speed sensors somehow been disabled, with the loom changes?

For DTC to switch off at key-on, it seems like something isn't responding.

Anyhow, I'm sure our more knowledgable members will have some experience here.

Xbox said:

Just a thought, but have the wheel speed sensors somehow been disabled, with the loom changes?

For DTC to switch off at key-on, it seems like something isn't responding.

Anyhow, I'm sure our more knowledgable members will have some experience here.

Click to expand...

No, the wheel speed sensors were not disabled.

you need the wheel speed sensors for everything else on the bike and they are the same ABS vs None ABS. I would take it to a competent dealer and have them clear the error codes and I bet it will work perfectly, when adding ABS that was all I ended up needed to finish the job.
good luck
Bret

Banddlarsen: didn't you change the BBS unit to a full version prior to the error code reset ?

banddlarsen said:

you need the wheel speed sensors for everything else on the bike and they are the same ABS vs None ABS. I would take it to a competent dealer and have them clear the error codes and I bet it will work perfectly, when adding ABS that was all I ended up needed to finish the job.
good luck
Bret

Click to expand...

I realize that speed sensors are needed for other things than ABS, so they have, off course, not been removed. Clearing error codes is easy, any dealer can do this.

When You fitted ABS to Your non ABS bike. Did You change the BBS to an ABS unit?

When I initially did the conversion I changed the wire harness and added the ABS pump and brake lines, I got the "missing speed sensor" error so i replaced the BBS with a BBS from a bike that I know had abs, but It gave me the same error... I then purchased a ECM from a TRI-Color with ABS and it still gave me the same error.. So I re-installed my ECM, but left the BBS in that I purchased (only because I am lazy). I then had the dealer check it out, he said it had a few error codes and it took 3 times clearing them to make them go away. As soon as the errors were gone the ABS option showed up on my dash and everything works as it should (1000 miles and still great).
So in the end I really doubt i needed the new BBS, but switching the BBS will cause the computer to error again and it will cost me more $ to get it cleared again. The dealer only charged my $100 to fix it..

banddlarsen: Could You please post or send by PM a picture of the label of Your original Base BBS.

the BBS on my none ABS bike says exactly the same thing as the BBS I purchased from the ABS bike. BBS FULL (I didnt know that until I removed my old BSS) sorry i should have mentioned that already.
many of the BBS's from none ABS bikes do not say BBS FULL, but mine did.

banddlarsen said:

the BBS on my none ABS bike says exactly the same thing as the BBS I purchased from the ABS bike. BBS FULL (I didnt know that until I removed my old BSS) sorry i should have mentioned that already.
many of the BBS's from none ABS bikes do not say BBS FULL, but mine did.

Click to expand...

What is the part number?

here is a picture of what mine looks like. (not mine but same part number as both of mine)
I figured mine would say BASE rather than FULL but it was not to be.

I am in the process of doing a similar thing. When I saw your post, I threw a base harness on the bike tonight and confirmed I have the same problem as you. If you look at the electrical diagram in the ducati manual, you can see the difference between the ABS vs non-ABS bikes. In the ABS diagram it appears like the bosch abs electronics convert the hall signal from the speed sensors and puts that data on the can-bus. When you replace the harness only it routes those signals to the bbs directly. its possible our bbs units do not have those pins programmed (since our bbs units are intended to work with abs).

I was told from what I believed to be a reputable source that abs removal was possible with only a loom and dash swap. After looking at these diagrams I'm not so sure I believe that. I don't know what is possible with ducati programming though so perhaps someone knowledgeable can add to this thread.

Anyway, I'm pretty sure you'll have the same results whether you connect your speed sensors or not. Likely they are going nowhere.

I can tell you that mating a base model bbs with your S/R model dash will not work. I tried that as well and you'll get an unknown device error.

Sorry I don't have better news. If you sort this out before I do, please share your results.

The dash is the same on all models, the ECM is the same on all models, the BBS says BASE and FULL but my NONE ABS had a BBS FULL. I promise you that if you plug in a new harness you will get errors no matter what else is connected, it you replace the BBS, ECM or anything else you will get errors. the only way to get everything to see each other is to take it to the dealer and have the errors cleared. Ducati in Italy had no idea how to get it to work, my dealer had no clue but was willing to experiment on mine and it turned out to be very easy, But it takes the Ducati Diagnostic tool V2. hope my 6 months and over $1000 in (try this) parts can help someone.
Bret

Hi Bret,

Very helpfull information

I think you are right regarding interchange dash and ECU. To prove this - I will make a test tonight on my 2 panigales - one is a base model, the second an S model.

If this is the case, My conclusion based on your expirence is, that for converting you just need new wiring if this is from same type (base or S)
Otherwise - BBS and Wiring if you change type (base or S)


Update to follow

Hi all,

Tried the S dash on the base bike. Got device error, but dtc ans abs seems to work ok, havn't fired the bike up, but changes in settings was possible and seems to be fine after power off/on.

As Bret mentioned earlier, this unknown device error could be reset at the dealer

I need to remove the ABS bike. you will have problems with the DTC? I have to fix central workshop ducats? Thanks

Finally it's working

I removed the ABS unit on my S ABS. I changed the wiring loom to a S NON ABS wiring loom and the BBS to a S NON ABS BBS unit.

It works and no error codes

I have done the harness swap. Does the sw ver on the base bbs have to match the bbs full you removed? I tried this with the only base bbs I could get my hands on. It was a sw ver 15 (off a 2012 bike). The original bbs full was ver 20 (off a 2013 bike). When I swapped the base in I got 'unknown device' error.

385.1.015.2A (original 2013 bbs with abs)
385.1.012.1D (replacement 2012 bbs without abs)

This did not work for me.

Autoblipper said:

I have done the harness swap. Does the sw ver on the base bbs have to match the bbs full you removed? I tried this with the only base bbs I could get my hands on. It was a sw ver 15 (off a 2012 bike). The original bbs full was ver 20 (off a 2013 bike). When I swapped the base in I got 'unknown device' error.

385.1.015.2A (original 2013 bbs with abs)
385.1.012.1D (replacement 2012 bbs without abs)

This did not work for me.

Click to expand...

Is Your bike a Base or a S?

If You have a Base, You need to use a NON ABS wiring loom from a Base and a NON ABS BBS from a Base. Same with S. You can't put a Base BBS on a S and vice versa.

Autoblipper said:

I have done the harness swap. Does the sw ver on the base bbs have to match the bbs full you removed? I tried this with the only base bbs I could get my hands on. It was a sw ver 15 (off a 2012 bike). The original bbs full was ver 20 (off a 2013 bike). When I swapped the base in I got 'unknown device' error.

385.1.015.2A (original 2013 bbs with abs)
385.1.012.1D (replacement 2012 bbs without abs)

This did not work for me.

Click to expand...

385.1.015.2A is from a S
385.1.012.1D is from a Base

You need a NON ABS BBS unit from a S.