EIS (Electronic Ignition Switch) ML Models

Car Commando Tip of the Day:
Mercedes ML series: Engine cranks and runs for a few seconds and then codes are set.
Codes P1570 and B1703
First thing to do is go to terminal 15c at the EIS and see of there is B+ there.
If not, jumper B+ to 15c of the EIS and see if the engine starts. Problamatic EIS switches in the
early model (1997 thru 200 163 Chassis Mercedes ML).

MOST importantly, check all the keys for start authorization in the EIS and AAM.
Answer is more than likely you have a defective EIS.  That's if 15c does have B+ there at the connector.  
If you do not, then go to the AAM for the B+ supply.