Pretty stock 90 300SL, not hits, accidents etc. Soft and hard tops are pretty much totally manual rite now, all fuses ok, no 6 in main and all in rear hinge area. Roll bar fully functional, soft top only slight locking down movement. Red pull switch comes on with ignition, goes out after start, then comes on after 5 sec. or so. For whatever reason, cannot pull the code(s) from No. 10 socket in the diagnostic. Pull switch on console lit but will not flash codes either. Hmmm. Any ideas?? I figure to leave the roll bar up and windows up a little when trying this and that as they should first work in the process when you pull the console switch. If they go down when pulling the switch I"m on the rite track! Controller is the early, 3 input style. Thanks to all, great site! David