Car won't start? E420
for the heck of it, start from the source: battery. Be sure that not
only that clamp is secured to battery post, but that it is clean and
free of sulfation and spooze. Wire brush and reconnect ....but be
aware that electronics may reset and need resync-ing.
Once you've done this and confirmed good connection, then you can
begin working down stream for other problems to isolate.







