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Hi there.
I have 2006 W221 320cdi.
Today I was at petrol station, when get back to the car, started it and a red message appeared - drive to workshop without changing gear....
The gear stick can not be moved, it was stuck in Parking mode. Have tried few times to move it to N, D or R , but with no success. After few times turning ignition and trying to start the engine on the car refused even to start the engine the brake pedal is hard.
Got recovery to my driveway and plugged my Delphi 2021 diagnostic
I have one error code. - 2806 selection range sensor not learned. Permanent
Later a friend came to help with Autel diagnostic and he try to clear the error code. He perform a reset to the gearbox functions, and try to learn the module, but when he try to learn it, message appear to move the gears tick t R, D and N, but as the gear lever cannot be moved from P, he couldn't learned the sensor.
Later when checked with delphi 2015 got code -
D139 - No CAN message received from control unit
steering column module..
Any idea what could be the problem?
Really appreciate your help!
Cheers,
Stan
its Mercedes little lottery game - you just won the fake ISM failure mode - please go to your dealer and give them $2000
the ISM is a bit of electro mechanical junk bolted on the outside of the gearbox - it tells the gearbox what to do - at a given number of uses the software is told to stop operating it and its game over - I believe clever people can reset the counter - there's another one inside the park brake module
its Mercedes little lottery game - you just won the fake ISM failure mode - please go to your dealer and give them $2000
the ISM is a bit of electro mechanical junk bolted on the outside of the gearbox - it tells the gearbox what to do - at a given number of uses the software is told to stop operating it and its game over - I believe clever people can reset the counter - there's another one inside the park brake module
Thanks for your reply. I suppose it is the ISM, but I'm not 100% sure. Could it be the steering column module, as I got error message?
Although Delphi is very primitive, is it legit and very accurate. Launch just delete everything when user try to "learn" or "adapt".
Regarding initial Fault Code:
The range selector is a hall sensor on the conductor plate/control unit from the gearbox.. the magnet on the control switch will sometimes get packed full of metal and throw off the hall sensor.. drop the pan and look for excessive metal buildup on the magnet of the range selector.
Almost easy to solve, if the quantity of metal shavings from the gearbox is still low.
Although Delphi is very primitive, is it legit and very accurate. Launch just delete everything when user try to "learn" or "adapt".
Regarding initial Fault Code:
The range selector is a hall sensor on the conductor plate/control unit from the gearbox.. the magnet on the control switch will sometimes get packed full of metal and throw off the hall sensor.. drop the pan and look for excessive metal buildup on the magnet of the range selector.
Almost easy to solve, if the quantity of metal shavings from the gearbox is still low.
That sound a solution.. The problem is that the car is stuck in P and cannot be moved to the local garage in order to get in on the ramp and checked for metal shavings.
What about the error code on the steering column?
That sound a solution.. The problem is that the car is stuck in P and cannot be moved to the local garage in order to get in on the ramp and checked for metal shavings.
What about the error code on the steering column?
My solution may be obsolete now or may be used after solving the mess created by Autel.
Any faults like Pxxxx is genetic, doesn't have much meaning.
The correct code for any decision should be Pxxxx-xx
Managed to reset the gearbox. Then with delphi diagnostic learned the gear selector module and for now it's fine. No error codes drove the car 2 times, everything is OK.
Thankyou for your answer,I have a 2007 CL550 with 166,000 km. Is there any way to see if this could happen to me?
This thread is not about ISM....
If your original ISM is still alive, it will die for sure because the time passes through.
If the original already died in the past and was replaced by the new model named DSM, may have the counter that our colleague@BOTUS told us. I have no information about any counter.
there are three of these "safety related" turn it off counters I'm aware of on Mercs
you can do the SBC on 211 with it... - although it leaves a question on Xentry you will never know of (unless you have both) - when u answer yes it goes away for good - "do you want to use Summer ABS all the time" - this disaster zone of a braking system and has additional USA market only replacement, and warranty (was also used on the Maybach) - and of course one could justify it at least has some safety concerns - the park brake switch off and the ISM switch off is just BS - you need to look if its there
of course some other special software likes to illuminate fake EML warnings too - update the engine ECU so the ambient temp sensor doesn't make the light come on - "oh, we never knew that bit of dodgy code was in there" - SURE !!!
More likely is about the fear or responsibility to use Mercedes engineering software like Vediamo or DTS.
Is more comfortable to use the Autel not because is portable or has nice colors, but because it can easily transfer the responsibility... if the result will be disastrous, without any doubts the user will be very chill as the fault become Chinese...Not the same if user do wrongdoings with MB software, its kind of complicated to transfer the blame.
When you press "delete counter on SBC" on autel you will be quite OK on the curve where the brake become very stiff, but if you delete with Star or Vediamo you will be truly scared. It's a philosophical concept named Trolley Problem.
Where you can push a "fat man", ugly, wrong color, etc for train to derail or you can use a "switch". Using a switch ( like in any modern confrontation) any moral issues is no more...
Claiming that MB Software ca not do what Autel can, it's just a matter of common sense, Autel just add stupid buttons over the MB routines, stolen from Xentry but without the logic of safety.
one could debate lots of things - does anyone care when BMW make the ABS fail because like VW they buy in the version when the brush guides are deliberately set too tight - and ford buy the good ones?
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