Today I’m going to show how to renew 2006 Mercedes-Benz C230 TCU(Transmission Control Unit) module with Autel MaxiIM IM608 PRO II on bench. Somebody already replaced the transmission on this vehicle. Actually I don’t have to remove the whole transmission, lift the car and disconnect transmission connector with my own harness.
IMMO >> Accept >> Mercedes-Benz >> Expert selection >> TCU tools >> Wiring diagram
Follow the diagram to connect Autel IM608 II, GODIAG GT100 & TCU module.
- Here it needs a power ground, 2 high and low lines & a 120ohm resistor.
- Then I connect the OBD2 port through this cool pass through interface.
Read TCU data >> OK
Here we got the data already, the status of Activated & Personalized are “Yes”.
Do you want to save transmission data? Yes
Succeeded in saving transmission data!
I need another power supply cause that’s not going to last. So turn on 12V(15) button on GODIAG.
Renew TCU >> Yes
Do you want to obtain the erasure password? OK
Succeeded in calculating the erasure password!
Press “Yes” to save transmission data.
Succeeded in renewing transmission.
Do you want to read transmission data? Yes
As we can see, Personalized & Activated were changed to be “No”. That means the transmission has been renewed.
Before testing, ease the transmission code stored before:
0513 – The CAN signal for start enable transmitted to the Drive Authorization System(DIAGNOSTIC TOOL/FBS) by transmission control is missing or invalid.
Now unplug all connection to check if the transmission is good.
The transmission is working fine.
Done.
