A service manuel is the only place I have seen wiring diagrams...
There should be separate fuses/relays for the low beams. Check the underhood fuse block located on the firewall. They are all clearly labeled.
you will need to get the wiring diagram and follow the schematics,but I believe the high beams generate their power from the mult-function switch
have you checked your fuses? it could be as simple as that This is true, there is a separate fuse for the high beams, low beams and radio. Fuses for 1999 LHS are located behind a side panel (drivers side) of the dash next to the steering column. Driver's side door must be open and there is a wiring diagram on this panel.
Most likely a blown fuse or burnt out bulbs. Check the fuses first
I think you have a faulty light switch or relay, if the bulbs / wiring are ok.
check the wiring at the hi-low switch.
Your low beams may have a short in the wiring system. It is also possible that the bulbs have burned out in both of them.Ê
On your switch lanes signal stick, on the left side of the wheel,you pull it towards you and the beams will come on. Pull them again and they will shut off.
It is a wiring problem. My mechanic followed the wiring and found where it had frayed. He spliced the wire, removed the headlight and soldered it back on. Works like new now!
Well, first i would replace the low beam bulbs, if that doesn't work, perhaps a fuse, and if not that, wiring problems.
Check the multifunction switch in the column first as it controls both high & low beams, as well as check the daytime running light module if so equipped.
Bad switch or wiring problem.