Very odd that no one has an answer for this..Even Googling couldn't get me anything solid...

 

Did you ever find out the cause of that code?

 

Hey sle39lvr, did you ever figure out this code? i am also getting it along with cf14, they go away but come back right after.

Let me know

thanks

 

Hey sle39lvr, did you ever figure out this code? i am also getting it along with cf14, they go away but come back right after.

Soooo how exactly did you read those codes?

 

I haven't had any luck yet.

I used the BT Tool to scan.

 

Give us detail - what was the whole text of what popped up?

.

 

Exactly that:

 

Exactly that:

You drive a diesel? Wait...did they make 'em in 2007? Problem starting ever?

Just for fun, do this easy test:

http://www.youtube.com/watch?v=m6Y5qXZTPe0

 

.

Is this familiar?

http://www.youtube.com/watch?v=loviCE5GUcg

 

Just got the Bav Tech tool and I am getting the same message. 2008 328xi
Did you ever find out anything about this error?

Gearbox Control Unit
CF17

 

Nothing yet. I asked several Indie shops. They all were confused about it, did more research, came back to me saying, do not worry about it since it;s very minor...

 

did you do voltage test fool?

 

Everything is fine with Voltage testing, even after a new battery.

 

It's something to do with dsc "toque request"

 

i have a faulty dsc pump, i don't know the fault is related to that.
i clear the code and it keeps on coming back. i don't know if should reset the transmission.

 

Im having a similar issue in my 328i, CF17 is the only code showing in the scan. Does anyone else car stop and have trouble starting again? At first I thought it was the battery but changed it out and still had the same issue, the car would shut off while driving.

 

What was the problem on this ??

 

For the CF17 code, needed to replace the Positioning motor. This is the motor that controls the Xdrive.
Hope that helps!

 

Was your positioning motor noticeably failing? I have the same code currently that keeps coming back but no change in driveability.

 

I was experiencing some occasional grinding sound upon startup. Replaced the part. All good!!

 

Good to know in case that starts happening. Thanks!

 

any more info on this?

I am new here and have searched about this error code (CF17). This post seems to have the most activity, so I thought I would ask if anyone has more info on this error code? My car is not xdrive so I don't have a positioning motor and I this error code keeps coming back. It's a 2008 328i (SULEV) sedan with automatic transmission. The car seems to run and drive fine other than this code. I am using BMW carly app and adapter to read and clear codes.

 

FYI for anyone who has the CF17 code. I have had the code for at least the last 30k miles with no major driveability issues and it would show up immediately after every time I cleared it with my scanner. I took my car in to the dealer for an alignment and had them take a look at the code. Apparently it was a communication issue between the TCM and ECM. I did not talk to them about it but the service order says that they reprogrammed a module although I'm not exactly sure which one. The code is now gone and I swear my transmission is less clunky in stop and go traffic but that could all be in my head. They didn't even charge me for the code issue so I'm a happy camper. Hope this helps anyone having this issue.

 

After replacing JBBF, the problem is gone.
:rofl::rofl::rofl::rofl:

 

Hello all. Trying to refresh this post. My E93 is throwing the CF17 code. It comes back immediately after reset. There are a couple of ancillary codes every few drive cycles, but they appear to be related to the jbbe. (DSC, drivetrain, limp mode) From what I have read, the most common issues are a bad JBBF module. I purchased an exact # replacement and installed it but the code persisted and I was unable to code the replacement JBBF module to the car using my coding tools (no response from module) because it still wan't communicating. After testing, I reinstalled the original since that did not appear to be the issue. My next thought was that the wiring to the transmission had been compromised. I lifted the car, pulled the front pan and cleaned oil from everything I could. Although I replaced most of the key gaskets about 25k miles ago, there was a lot of oil on the splash guard and it had blown back onto the transmission. I suspect an oil change person allowed oil to drain onto the splashguard and he did not clean it up (this has happened to me several times). I cleaned up all the oil, cleaned all the transmission connectors that were accessible and tested again. Same code. If anyone has any other ideas, I'd really appreciate them.