Question about 1997 Cadillac DeVille
Possibly head lamp switch. daytime running lights on separate circuit and use the high beams at reduced voltage. does flash to pass work? that's high beams too. do high beams work?
Is it just low beams?
do taillights work?
Posted on Mar 01, 2009
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Posted on Jan 02, 2017
I have the same problem, but haven't fixed it yet. However, I have found great information at the following two links (The first being the most concise).
Posted on Nov 13, 2008
fisrt of all you must determine if you are getting power to headlight switch. You'll need to pull to the dash panel out to get to the switch. Be careful to disable your air bags when working around the dash.With a test l;ight probe your connector on the back of the switch. You should have one battery powered wire . You probably do since you said your running lights work. Turn on your running lights only at fisrt. Probr the plug again. You should have power out on one terminal only. Then try your headlights, if you have power on the other terminals that didn't work with only running light, your switch should be fine. I'm betting that your problem is in your dimmer switch. I have repaired this problem many many times because of bad dimmers. Under the dash you will need to remove the plastic cover(typically held on with 7mm screws and push pin type connetors.). On the left side of your steering column there will be a switch with a single connector that has several wires in it. Look at the end closest to the steering wheel. You should see a rod about 3/16 diameter contacting one end of the switch.That's your dimmer switch.Carefully place a piece of masking tape on the rod to hold it in place. Unplug wire onnnector and then remove the two screws that hold it to the column.Look to see if there is any burnt wires/connectors there. If not probe the switch with your test light. Remember one power in and should have one power out on each beam. (possibly two on high beam for indicator) If no power out on any position of dimmer, it's bad replace it. If you do the problem is between the dimmer and he headlights.I doubt this is the case. When replacing your switch, make sure that you test the physical function of the switch before you install the cover etc.There is some room for adjustment where the screws mount it to the column. I've done this dozens of times and hope this helps you.
Posted on Dec 29, 2008
SOURCE: jetta headlights not working
look at flushing relay from hazard, lights I don understand You said they when off, but they work with engine running, I don 't understand what works and what does not?
Posted on Jan 30, 2009
I finally got mine fixed!! It was the crossover wires between headlights(the wires that run in front of the radiator). One wire was torn into. Spliced them and taped back together. Hope this works for you!! I also used something called wire caps that help hold the spliced wires together. I found this solution on yahoo.com search engine where someone else had suggested this. My only problem was no dim lights, but all the other lights worked fine.
Posted on May 11, 2009
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