The sensor is a ring that sits behind the steering wheel and in front of the turn signal switch assembly. It has plugs on the back that plug into sockets that are located in the column.
I haven’t had a chance to look at the ETM yet to see where it goes, so I don’t know about the rest. Probably won’t have time to loo until tomorrow. More as I know it. -D > On Mar 30, 2021, at 5:01 PM, Floyd Thursby via Mercedes > <mercedes@okiebenz.com> wrote: > > Where is the sensor and what is the connection like? Is there a fuse in > there somewhere, or a relay in the fuse box that it connects to? There is > all kinds of funky connections to those relays. Or does it connect to one of > the brains under the box inf ront of the pass side where the ECU and K40 > live? I pulled all those out of the 97E420 and cleaned the contacts etc, I > can't remember what they are all for. One is K40, one is ECU, one is ASR+PNL > (I don't know what PNL means) and there is one more in there, a big one in > back that I could not get the connector off, I'm not sure what it does but it > has a lot of connections. > > CHANGE YOUR FUSES!!! > > --FT > > On 3/30/21 4:49 PM, Dan Penoff via Mercedes wrote: >> The lock to lock trick is for resetting the range of the sensor when it’s >> replaced or the computer is reset. When it doesn’t see the settings in the >> computer, it throws the BAS light code. Turning lock to lock allows it to >> “see” the range of the steering wheel rotation, which once it does, the >> values get saved in memory. >> >> In my case that signal isn’t getting to the computer. In the HHT emulator >> you can see “actual values” of the steering wheel turning from 0 (center) to >> + or -, left and right. If I turn the wheel it just sits at 0, so it’s not >> getting the signal from the sensor. >> >> I know the brake light switch cures a number of ills, but I don’t think this >> is one of them. I’ve got to dig into the WIS and see how it’s wired. >> >> -D >> >>> On Mar 30, 2021, at 4:44 PM, Floyd Thursby via Mercedes >>> <mercedes@okiebenz.com> wrote: >>> >>> I see people say the brake switch going bad can cause this fault, I'm not >>> sure how that works but it seems to cure the problem with those lights >>> coming on. Cheap part and takes but a few minutes to change. >>> >>> I get this one the 99ML320 sometimes and saw it once on the 05ML500 but >>> then it went off. >>> >>> Did you do the lock-lock trick a coupla times? That appears to reset >>> something and the system is happy again. >>> >>> --FT >>> >>> >>> On 3/30/21 4:30 PM, Dan Penoff via Mercedes wrote: >>>> Got BAS/ESP/ABS lights on the 99 E320 4Matic. STAR says no signal from the >>>> steering angle sensor. Put a new one on the car and the same issue - no >>>> signal from the steering angle sensor. If I do an ‘actual values” on it I >>>> see nothing when the wheel is turned. >>>> >>>> Any suggestions on where else to look other than the wiring harness? Is >>>> this paired up with a module in the brain box that might be unhappy? >>>> >>>> Thx, >>>> >>>> -D >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>> -- >>> --FT >>> >>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> > -- > --FT > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
