03 Headlights Won't Work

tkirsche

Member
Jul 20, 2008
7
0
Oregon
Headlights were working fine one day then just won't go on the next. Just the low beams are out, high beams work fine. Checked under hood fuse which is good and kick panel fuses are OK. Changed the turn signal/light switch arm on steering column from one on eBay and still the same problem. Is there a relay somewhere I'm missing? Help please.
 

squirt

Well-known member
Nov 13, 2008
824
13
Los Angeles
The headlights are purposely put on redundant circuits after the switch for safety. If neither is getting power, it's likely that you're not getting power to the switch, though this should be easy to test. See excerpt below from RAVE electrical library. Recommend you have a look at the wiring diagram (available through google search) and follow the circuits from the lights to the power source/ground source.

Headlamps - Dip Beam Operation
When the lighting switch is moved to the headlamp position, the feed from fusible link 10 in
the engine compartment fusebox passes through the switch contacts. The feed is connected
on a UR wire to the passenger compartment fusebox, where it passes through fuses 9 and
10.
LH headlamp
The feed from fuse 9 is connected on a UK wire from the passenger compartment fusebox
to the LH headlamp and illuminates the LH dip beam bulb. The earth path from the LH
headlamp is connected on a B wire to earth eyelet connector C0564-1.
RH headlamp
The feed from fuse 10 is connected on a UB wire from the passenger compartment fusebox
to the RH headlamp and illuminates the RH dip beam bulb. The earth path from the RH
headlamp is connected on a B wire to earth eyelet connector C0559-1
 

Dave03S

Well-known member
Jun 22, 2012
62
2
Seattle, Wa
I've had the plastic connector that goes on the back of the bulb itself deteriorate and fail. Did you look for cracks and or breakage there?
 

tkirsche

Member
Jul 20, 2008
7
0
Oregon
Thanks for the replies, always check the obvious first, both bulbs were blown, just didn't think about both going out at the same time. Hopefully there isn't another problem causing them to blow, time will tell.