Just bought a 1997 S420, hard code locked into 2nd gear. (OBDII code 1747, so it might be oil in the connector plug)
I'd like to clear the codes and see if I can drive it home in some gear other than 2nd, but I'm not willing to pay the dealer $122 for the attempt.

Is there any way of manually clearing the codes from the transmission computer without SDS, HHT, or similar?

Something simple, like shorting pin 1 to pin 10 for ten seconds?

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'79 300SD W116
'86 190E 2.3-16V W201
'92 300D 2.5 W124
'99 E320 4MATIC S210