These systems include SRS airbag computer, 722.9 gearbox computer replacement, Gearbox module, SAMĬomputer, ABS, ESP control unit, the COMAND system, intelligent headlight computer instrumentation, and ME modules,Īmong others. In a majority of the systems in Mercedes Benz, SCN coding is required after the
#Scn coding mercedes 722.9 update#
SCN coding is required to update the software when a new Electronic Transmission Controller (ETC) or fuelĬontrol unit (ME) is installed. Why all work on your Mercedes should be done by a technician who is SCN certified. Problem because only certified technicians can access the Mercedes-Benz server. Unauthorized technicians can not fix this Your ME Control Unit and that SCN coding is needed to resolve the issue. Why is this important?īecause if you are experiencing trouble with your transmission, there is a good chance that the problem is with Provide Software Calibration Number (SCN) Coding. G & N Motors is one of only independent Mercedes-Benz service centers that is certified by Mercedes to SCN Coding Services for ME Control Unit “ Long story short, they basicallyįound the one problem with my Mercedes, fixed it, and everything now is perfect." – Judy, Online If you have the old control unit available you may read the SCN coding and then write this SCN coding in the donot control unit.G&N Motors Inc: Mercedes Technicians > Mercedes Service > MBZ Transmission Service > SCN Coding for ME Control Unit If everything is OK the 7G unit should report that now it is personalized and you should be able to see the hashes of the keys.ġ0. Then for the option “Detach the transport protection, personalize and activate the control unit” select “Yes” and press the button “Set Coding”. Now, you should put the 722.9 unit in the car in which you wish to adapt it and once again connect to it and press the button “Adaptations”. When the procedure is complete you may check the “Actual Values” and verify that the Electronic Transmission Control unit reports that it is renewed.ĩ. Pleasewait until the procedure is complete.Ĩ. Please browse to the folder where you have extracted these files and select it.ħ.A progress bar will appear showing you the time and the completed percentage. It is also recommended to stop any screensavers, antivirus and other programs, which may affect the performance of the system.Ħ.The first time that you use this function, the software will ask you for the location of the database files for 7-Gear renew. If you are using a laptop – connect it to constant power supply. You may save the SCN coding string from a damaged control unit and then you can save this saved SCN coding in the donor 722.9 control unit:ĥ.Click on “Make Virgin”, the system will display warning message, click “OK” to continue.ġ) Connect a battery charger to the battery of the car.Ģ) Plug the diagnostic connector and make sure it is correctly seated in the diagnostic socket. The wiring of the 7-Gear units is the following:ġ.Select vehicle chassis, model and engineĢ.Select Electronic Transmission Control unit from unit listģ.The Mercedes Commander will show the identification of the control unit.Ĥ.Click on “Adaptation” button will show the available adaptations including the SCN coding string. In order to renew a specific 7-Gear control unit out of the car it is necessary only to connect the CAN pins of the 7- Gear unit, as well as the GND and +12V pins. The 7-Gear control units (722.9) may be renewed either in or out of a car. The following part displays the detail instructions on renewing Mercedes-Benz 7-Gear control units (722.9) with 2015 FVDI commander.
#Scn coding mercedes 722.9 how to#
I have told that the FVDI Mercedes could renew 722.9? Want to buy FVDI Mercedes / Smart / Maybach, where to and how to do it? Or do I need to go for a Star diagnosis tool instead?