This article OBD2TOOL will show you a step-by-step guide on how to use KAG to read/write Mercedes Benz ME9.7.And try this procedures at your own risk!
Vehicle Information: Mercedes W221 S350
Device: KTAG ECU Programmer
Remove the ME9.7 ECU from vehicle,and open the ECU shell carefully.(for ECU shell removal,you can check this article:How to open EDC16 / EDC17 / MED17 )
ECU PCB show as picture show:
Connect then cable 14P600KT02 to the connector of ECU.
Refer to below pin out diagram:
Red color: Pin 15, 16: +12V
Black: Pin 2: GND
Apply solder paste on the red area in ECU as following picture:
Note:Here i you want to make the procedures simplify,you can choose ME9.7 ECU Renew Cable.No need to disassemble the ECU and soldering cable connectors.It can reduce operational risk of ECU damaged.
Open KTAG software.
Then I Choose “Mercedes” “S (W221)” and “S350 3500 V6…BOSCH ME9.7”.
Choose plug-in “P102”.
I clicked “Read” and wait for a while.
Then Save the bin file.
Finally, i successfully used K-TAG Auto ECU Programmer to read Mercedes W221 ME9.7 ECU !
Then write procedures is same as reading procedures.And before you write a new ECU data file back into ECU,you would better make a backup.