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Mercedes 722.9 7G gearbox coding with Star Diagnosis

Description

Here is the instruction on how to code and update Mercedes-Benz 7-G gearbox TRONIC CONTROL MODULE / 722.9 Transmission Control Module with Star diagnostic system and SCN Coding.

NOTE:
This is an instruction for people who are not acquainted with SCN coding a second hand virginized TCM. If you do not know the EHS number it is impossible to make correct software update and SCN coding. You are on your own risk.

The instruction is done by original Star diagnosis diagnostic system. Our Star diagnosis SD Connect 4 multiplexer clone will do online and offline programming as well. But specific DAS version is required. Detail information, please contact our customer service.


Mercedes 722.9 7g gearbox coding in process:

Step 1: Change EHS number

After well setup MB SD Connect C4 diagnosis software on Dell laptop, go to Electronic transmission control (722.9 7G-Tronic) program
Select “Control unit version”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
 
Locate EHS part number. This is the software stored in the virginized unit which software should be changed so that the 722.9 TCM should work in this chassis and SCN coding be performed. This should be done after the EHS number is changed.
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Back to 722.9 7G-Tronic program, select “Development data”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Select “Control unit adaptations”
Select “Control unit adaptations (Download)”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Select “ZBEHS (DL-ID-ZBEHS)” option
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Enter the EHS number here
Mercedes 722.9 7G gearbox coding with Star Diagnosis
If the system display Result “1” means that the EHS number is correct and programmed
Back to 722.9 module program and check if the EHS number is changed in “Control unit version”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Step 2: Update software offline

Select “Control unit adaptations”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Select “Control module programming”
Mercedes 722.9 7G gearbox coding with Star Diagnosis

Come to next step: How to change the software offline
Select Offline programming. This procedure should be done offline.
Mercedes 722.9 7G gearbox coding with Star Diagnosis
The next program will prompt you what should you do next.  Follow the instructions strictly.
Mercedes 722.9 7G gearbox coding with Star Diagnosis

Enter the reason for control unit programming, here we enter “1”
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Offline coding is progress. The actual programming takes 5.00 minutes
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Back to Control unit version program
Now you see that the software is changed properly and corresponding to the chassis. Once you have done all the step-by-step procedure you can continue with the SCN coding.
Mercedes 722.9 7G gearbox coding with Star Diagnosis

Step 3: Online SCN Coding

Go back to 722.9 7G-Tronic program
Again select Control unit adaptations
Select SCN coding
Mercedes 722.9 7G gearbox coding with Star Diagnosis
Select Online programming. The last step online SCN Coding should be completed online. Then follow system prompt until it is completely done.
Mercedes 722.9 7G gearbox coding with Star Diagnosis
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