"The key was turned on while rcm was out of car. The wing deployed, tow and traction control lights started flashing." Mercs really do not like being on with a low battery. Last one I saw like that had over 30 codes stored that had to be cleared.


"The shift indicator is showing a block form " that usually indicates a lack of can-bus communications with the shifter module. Even Torque Pro should show a P06xx and/or P07xx error. Actual Merc codes will be different.