C250 w204 p0705 transmission range sensor circuit malfunction (prndl input) code lack
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Hi everyone
I have recently purchased a c250 w204... this morning went to start the car up went to take off and noticed I didn’t have as much power as it does the engine management light had come up so I have got it plugged in on star fault code P0705 transmission range sensor circuit malfunction (prndl input ) had come up cars going in to gear reverse lights working but there no power there also noticed that the car doesn’t go past 3000 rpm has anyone else had this fault ?or has any advice would be much appreciated
I have recently purchased a c250 w204... this morning went to start the car up went to take off and noticed I didn’t have as much power as it does the engine management light had come up so I have got it plugged in on star fault code P0705 transmission range sensor circuit malfunction (prndl input ) had come up cars going in to gear reverse lights working but there no power there also noticed that the car doesn’t go past 3000 rpm has anyone else had this fault ?or has any advice would be much appreciated
You have Xentry?? Have you processed codes with Xentry??? If you have a range sensor problem it will make the transmission go into safe mode.
Newbie
Hi have you had any progress on fixing this fault, if so what was it?
thanks interested to know
thanks interested to know
Newbie
Yes, So ordered a new Selection range sesnor Y3/8S1 and soldered onto the TCM inside gearbox, this did not fix the fault so it seems it was some sort of solder or wiring inside TCM, TCM was also cleaned with electrical cleaner and this did not fix. The fix was a new TCM from the Mercedes dealership, you need to have the coding from your old TCM transferred onto the new TCM, its about a $1000 repair job
Newbie
Awesome…good to know there’s hope! I went to the dealership and all they said was selection range sensor for 2900 and some sort of module in the transmission fluid pan. Is there even a module in there?
Anywho, is the TCM located in the shifter in the cabin?
If you did this repair yourself, do you mind filling me in on how to go about it?
Thank you for responding
Anywho, is the TCM located in the shifter in the cabin?
If you did this repair yourself, do you mind filling me in on how to go about it?
Thank you for responding
Newbie
Wanted to shake this in case it helps anyone. Had these 2 codes popping up on a used Mercedes I had purchased. Car seemed to drive normal with no issues but baking check engine light come on is always concerning. Read multiple posts online with all sorts of possible solutions. Being that the transmission was involved, I had already bought what I needed to replace Trans fluid and filter so figured I would go ahead and do that before looking into next steps. The fluid was filthy so glad I did this service. Well it’s been over 2 weeks and the codes are gone and have not returned. It appears the filter and fluid were just so filthy that it was sending codes. Hopefully this helps someone.
