98 bmw 740i data port

Question by lizzyib posted 1 month ago in 7-Series

After using an auto store scanner on

my car - car will not crank or start,

Lights come on dash, but data port

under hood does not power my 

nt510elite foxwell w/bmw software,

but did before and was able to use

smartvin option - now scanner does

not power up from data port - but

does power up from dashboard port,

but will not smartvin and does not

let me into most sysyems - had an

EWS problem 6 mos. ago - acting same way - what could be keeping the

underhood port from powering my