The car was in an accident & both lights were broken. When I replaced the lights, the drivers side light wouldnt work. Only the driving light. The high beam worked fine.

What Ive done:
I installed the light on the other side & everything worked so I know is not bulb related.
I cheked the wire all the way to the passanger side where the wires separate in to two & nothing seems to be broken. (notice I say "seems" because Im no electrician)

Can someone give me more sugestions where to check for problems. Is there separate fuses for the lights? Is there a better way to check the cables than just a visual inspection?

Any hints will be apreciated.

Purple should be 12V with the lights on.
Black is ground.

Check for power., then check for ground using a meter.

Can you please put your year and model in your signature by editing your profile?

What year and trim car are we dealing with here?

please add that info to your signature as well so we can more accurately diagnose issues for you

Sorry. Its a 2001 SLE.

So the cable Im looking for is purple all the way inside the harness.

I know those colors are good for 92-99. I can't tell you if yours are the same.

Left low beam should be a yellow lead on pin A (12v), black is ground on pin B. The low beams are supplied from two seperate 15a fuses in the under hood fuse block. Fuse #5 is for the left low beam, check it out.

Wait a minute, are we talking fog light or headlight? If it'* fog light, then Bill is right, it is purple 12v. I'm a little confused, someone please straighten me out.

Its the headlight. Im goin to check the fuses, I hope that is the problem. The cable is ok so it has to be the fuse. If the fuses are good then Ill have to trace the cables all the way till I find something broken. Anyway thanks for the help.