Question about 2002 Volkswagen Jetta TDI
I have a 2002 Jetta 1.8T and right now I am having a problem with the low beam headlights. Once you turn the headlight switch on, the daytime running lights turn off, and the instrument cluster lights come on, but the low beam headlights do not come on. The daytime running lights run off the low beam filament in the bulb, and the bulbs are good they were just replaced. The fuses are also good. I even put a new headlight switch in thinking it was that, but it didn't fix it. When the headlight switch is turned on the green and yellow wire running in the back of the headlight switch harness has no power, but if the switch is in the on position it has power. Another problem I am having is the air conditioning clutch does not engage to run the pump. There is constantly 9v of power there whether the A/C button is on or off. Also, when you push the recirculate button the brake light comes on on the cluster, it beeps at me, and I lose power accelerating.
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Posted on Jan 02, 2017
There is usually a relay under the hood that controls these. They could be run in a series which would explain your lack of a blower motor also. Good Luck.
Posted on May 21, 2009
SOURCE: No Low Beam Headlights
but the daytime running lights do function? before you turn the headlight switch on they work fine? i'm asking because the drl and the low beams use the same ground. you don't say that the high beams work but i'm guessing they must or you would say. next thing to do is take the headlight assembly apart, remove a low beam headlight from the socket and see if, with headlight switch on, you have 12 volts between the low beam socket and ground. if you don't i would say that you have a faulty wire between the headlight switch and the low beam sockets. hope that helps
Posted on Jun 01, 2009
you prob haven't used your lights all summer, I have seen this on more than one occassion, you are correct in your assumption, both you dim bulbs have blown. Both head and dim lights are in the same bulb, but head is working and dim is gone. If you take out one of the bubs you should be able to check it
Posted on Sep 08, 2009
There is no recall regarding the headlights on that vehicle.
What typically happens is the wiring inside the light housing melts and the bare wires randomly touch each other.
You can verify this by taking one of the plastic covers off the back of a headlamp housing and checking out the three wire harness inside. It is extremely common for this to occur on that vehicle.
The wiring can be repaired, though difficult without removing the lamp.
If you wish to replace the wiring with factory replacement parts, there is no service parts for the lamp, you must replace the entire housing unfortunately. For this reason most people just repair the melted wires.
Posted on Sep 17, 2009
Tips for a great answer:
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Low beam HID light goes out? http://schematicsdiagram.blogspot.com/2012/01/low-beam-hid-light-goes-out.html
----------2007 Dodge Caliber: Low Beam Headlight Not working http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html
-------------Chevy Tahoe: Low Beam Lamps are not working? http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html
----------2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working? http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html
--------------2002 Toyota Tacoma: Low Beams not working? http://technoanswers.blogspot.in/2012/04/2002-toyota-tacoma-low-beams-not.html
-----------Low beam headlights Modification? http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html
-----------DRL and Low beams not working? http://schematicsdiagram.blogspot.in/2012/04/drl-and-low-beams-not-working.html
-----------These will help.Thanks.
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