Usually, if the high beams work that means that the power is getting to the
lights. On Toyotas, the control switches turns the ground on and off for
the headlights. The headlights will always have positive power to them.
I have a wiring diagram for a '95 Camry. There is a good chance that
the same control approach is used for your Tacoma (but no guarantees).
Everything I say from here on assumes that the Camry wiring
controls is the same as the Tacoma wiring controls.
If you've got high beams, that means that the headlight relay and both left
and right fuses are intact and working. The low beams have a continuous
ground that is not switched through the light switch. All is pointing to a
bad ground. The ground does not go through the headlight switch. Check for
a broken or rusted electrical connection from the lights to the left front
Tell the usegroup how it turns out. Good luck. If you have any more
questions, email me back and I'll try to respond.
"David Mulvihill" <[email protected]
> wrote in message
> Both lowbeams on my 1995 Tacoma have failed and replacing blubs does not
> correct. High beams work fine. Switch in low beam position neither
> headlight works, and blue high-beam dash light is lit. Fuses in engine
> compartment are for left and right headlights (not hi vs lo) and both
> fuses look good.
> Any idea where to start?