- #How to code mercedes 722.9 scn coding code
- #How to code mercedes 722.9 scn coding Pc
- #How to code mercedes 722.9 scn coding Offline
I very much doubt that the Chinese can log into the online system with your setup. You just need to find the right CBF and coding.Ībrites can virginize and change the VIN, but it comes at a high price.
#How to code mercedes 722.9 scn coding Offline
Is also possible offline with Vediamo and DTS Monaco (runs for sdconnect c4 plus DOIP). And even if you could buy, you still need access to the online system for programming and SCN coding. Only stores licensed by NASTF can purchase this part from dealers here in the US. I would be inclined to swap out and / or replace the solenoid valve first before other parts are thrown at it.įinally update: I can finally recommend a brand new one. I think the likelihood is that the solenoid itself is bad or dirty. However, there are electrical connections between TCM> PCB> Solenoid, so the PCB may be bad. Yes, the circuit board usually has a certain flaw. I suspect it would only work during an ECO stop. I am not sure whether it runs with the engine switched off or with the ECO switched off. If it now has ECO, then there is an electric pump that runs. the engine must be running to be ready for operation. Magnetic filters may need cleaning or replacement.ĭoes the car have ECO Start / Stop if the only gear pump is not mechanical, e.g. The only leak would be past the o-rings on the molded connector and gear body, which would just be a leak that does not affect the electrical connection.Ġ748 The internal electrical test of component Y3 / 8y2 (solenoid valve K1 clutch actuation (VGS)) has failed. 9 variant, the TCM is integrated into the circuit board and the plug is cast in so that nothing can leak into the vehicle wiring harness or plug. The 722.9 does not suffer from the same leakage problem as the 722.6. Don’t forget to put the solenoids back in their original place.
#How to code mercedes 722.9 scn coding code
If any new code shows up, it’s likely the solenoid. If the code doesn’t change, it’s likely with the circuit board. Since you will not receive any codes for the other solenoid valves, you can temporarily swap the faulty one for a similarly colored solenoid valve (blue vs. I would probably toss a solenoid valve at it before replacing the circuit board, especially since it is neither a common bug nor multiple bugs. Obviously the solenoid can be bad, chances are the circuit board is bad or damaged in some way. Under the first image, click on Tests after clicking on the error in the module. Suppose you tried to delete and it comes back immediately. Take a look at the images below that show I have access to the Laptop Star (xentry) deal: Then make adjustments offline with Xentry. If you get a new one from the dealer or outfit that sells virgin (used) then you need someone online with Xentry to unlock and encode the disk. Outfits that fix your original circuit board don’t require coding or customization. With Xentry you also have the option of performing guided tests together with diagnostic information. I would do this first before going down the rabbit hole. Some generic scanners cannot erase TCM codes. Usually the problem with the circuit board is the speed sensors, if you have access to Star (Xentry) then drag codes with it and erase them. The resistance is 5.6 plus or minus 0.2 as good. Took it apart, tested the solenoids for the click at 12V, just the blue click, the black makes a different sound, more like a buzz. Reset everything and bam limp mode and the P0748 code is stubborn. Went through flushing and cleaning the solenoids, found some dark matter, used a magnet. How do I fix the P0748 MERCEDES-BENZ code?Ĭar model and year: 2010 Mercedes W212 E350 722.9 Transmission What are P0748 MERCEDES-BENZ code possible symptoms?Įngine Light ON (or Service Engine Soon Warning Light) Transmission shift shock When is the P0748 MERCEDES-BENZ code detected?Įngine Control Module (ECM) detectes an open or shorted condition on the solenoid circuit The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
#How to code mercedes 722.9 scn coding Pc
Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings.