Pictures would be appreciated. But the obd2 scanners are not good with transmission diagnostics best way to check is with star.

 

second and third pic when i looked at the tranny computer and it was fixed before i got there

fourth when i did filter gasket and atf replacement

first the code and the reader

 

It is 4 in the morning California time-could not sleep

All tranny codes on OBDII will be in the 700's!! for any Mercedes with 722.6...

So, you may have a issue with a blown fuse, cluster or shifter. Take a look at this link-it is crazy...

http://www.benzworld.org/forums/r129-sl-class/1717724-trouble-code-p1747.html

What may be apparent is the speed data from the Transmission Control Module to the instrument cluster may be lost. The picture of the wires with the goop does not look to sexy-there? The CAN bus data is lost-they are two paired wires twisted together on one of those blocks-that is the CAN bus. It is the two wires by them selves on the goopy connector block. You should be able to reset it with OBD tester... See drawing

Everything on these cars is CAN. You loose CAN you got no CAR-simple...

Martin

 

Okay i checked out all the fuses they're all fine. then i checked the TCU CAN wires they looked fine but i couldn't see much because of the silicone, where else would this wire go? would it go to the transmisson circular connector ? or somewhere else ?

 

I here they go to the instrument cluster....Check your shifter cables...

Martin

 

where are said shifter cables ?

 

Under the console-under the wood...

This is how you get the wood out..

http://www.benzworld.org/forums/w140-s-class/1886625-center-console-ashtray-door-stuck-closed.html

Martin

 

But lately i looked up the p1747 and it could be one of two things and I'm so confused. Its either "Pressure Control Solenoid 'A' short circuit." or "Defective Interaction of CAN with control unit A1(instrument cluster)" so i need some help to shed some light on my situation.

Hello.

I read somewhere about the same problem and it was the third brake stop light/lamp. I Think it worth to check.

 

Really can it be ?

 

Okay so recently I've changed the Transmission conductor plate and I'm almost done with putt tranny fluid in the car what else should I be looking at for this p1747 (also my transmission connector was soaked in ATF which is looking like the source of my problem)

 

You got to clean that module very very good...Need to open it up. Clean it with contact cleaner and blot it dry and repeat it about six times. Then blow it dry, and let it dry for a handful of hours..

See this this thread on post five:

http://www.benzworld.org/forums/w210-e-class/1570724-my-attempt-replacing-transmission-plug.html

Also, on the circuit board of the module a electrolytic capacitor (round can looking large part) swells up, and starts to tilt, but this part is basically not fluid resistant, so it swells bad...It is easy for the average Joe to replace it with a soldering Iron..

Clean that sucker up...

Martin