Transmission Replacement ETC Not Connecting
 

Greetings,

I have recently replaced my 1998 MB E300TD auto transmission gearbox with an identical used replacement auto gearbox 722.608

When I run quick test in MB Star DAS the ETC- Electronic transmission control - MB number 0215450832 no longer shows up in the report at all

I have my original Siemens TCU that was in my vehicle still installed.

I am seeking some direction and insight in to the SOP to resolve this issue, connect, link, or sync these to communicate

Any insight direction and redirection would be greatly appreciated

Much thanks in advance

Ronald

Mid Atlantic Region Northern Virginia

Were you able to communicate with the ETC just prior to changing the transmission?

Why was the transmission changed?

If loss of communication occurred immediately after changing the transmission, disconnect the transmission plug ( Right front of transmission. ) and try to read the ETC.

If the ETC is visible, the transmission is pulling the system down. On other systems I've seen sensors fail and pull the 5 VDC supply down.

If the ETC isn't visible, look for a pinched wire near the transmission wire.

For a 1997 car that uses the 38 pin underhood connector, the ETC does not need to be plugged into the rest of the car or the transmission. ( I made an out of car test harness to look at all modules on the 1997 cars )

At some point, all testing moved to the under dash OBD2 port. I have not tested this system but everything should talk through the CAN bus system.

I agree with what you share. It will be very useful information for everyone. Hope your next posts are as well

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