H4 Headlight Wiring

[Huw Powell]

> I'd like to maintain the autocheck function, so me thinks I'll go with four
> relays.

To do that, the wiring will be more complicated, as the actual
current-carrying wires to the bulbs must pass through the autocheck
unit.  Which means either doubling them back to the unit from the
relays, or moving the unit to a different phycial location (say, near
the relays) and running a signal wire back from it to the original
socket area.

Most of us just figure we can tell when a headlight is out by looking
forward through the windsheild after dark, with the lights turned on, so
we don't worry about maintaining that autocheck function.

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/