I WOULD GET 12 VOLT TEST LIGHT FROM ANY PARTS STORE CHEAP! THEY ARE SIMPLE TO USE ALAGATOR CLAMP IS GROUND MAKE SURE IT IS GROUNDED STICK POINTED END INTO PLUG LIGHT SHULD LITE UP.TO ME IT SOUNDS AS IF YOU HAVE A BAD PLUG-CONNECTOR THAT PLUGS INTO THE HEADLITE BULB OR A SLIGHTLY CRACKED HOT WIRE GOING INTO YOUR HEADLIGHT PLUG.THIS IS MY REASON FOR THE TEST LIGHT NOT TRING TO BE A SMART A JUST THAT YOU CAN TRACE THE WIRES NOW THAT YOU HAVE IT .YOUR WIRES ARE COLOR CODED FIND HOT WIRE ON THE SIDE THAT WORKS LOOK AT THE COLOR AND MARKINGS USUALY A STRIPE WHITE YELLOW E.T.C. ON PROBLEM SIDE LOOK FOR WIRE WITH SAME MARKINGS ,YOU CAN USE POINTED END TO STICK INTO WIRES JUST A SLIGHT HOLE IN THE WIRE INSULATION DO THIS IN DIFFERENT LOCATIONS ON SAME WIRE YOU WILL FIND THE BAD PORTION OF WIRE IF IT DOES HAVE ONE.I HAVE DONE THE VERY THING FOR MANY YEARS AND HAVE HAD GREAT SUCCESS AND THE SLIGHT HOLE IN WIRE INSULATION AND I DO MEAN SLIGHT IS HARMLESS.A YELLOW DIM LIGHT IS A BAD GROUND ALLWAYS ON A CLEAR BULB .WE HAVE A CAR THAT GOES THRU HEAD LITE BULBS OLD STYLE ,LIKE GRANT TOOK RICHMOND ,TRIED EVERY THING AND IT IS TWIWAN MADE JUNK BULBS BUT THIS IS NOT YOUR PROBLEM AS DESCRIBED,JUST A HEADS UP LOTS OF IMPORTED JUNK HEADLIGHT BULBS COMING IN .I HOPE THIS HELPS YA ,PATIENCE IS THE MAJOR TASK FOR THE REPAIR OF THIS PROBLEM,I WISH YA LUCK IHOPE YA FIND THE PROBLEM REAL QUICK.
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On the inside of the lid is a diagram .
The headlamps may be turned ON 2 different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the AUTO position, for automatic lamp control (ALC). During ALC, the headlamps will be OFF in daylight conditions, or low beam operation in low light conditions. Battery positive voltage is supplied to the low beam relay and the high beam relay in the underhood fuse block. When low beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the low beam relay. This activates the relay and the relay supplies voltage to the left hand low beam headlamp through the LH LOW BEAM fuse and to the right hand low beam headlamp through the RH LOW BEAM fuse. Ground for the left hand low beam headlamp is provided at G101. Ground for the right hand low beam headlamp is provided at G102. When high beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the high beam relay. This activates the relay and the relay supplies voltage to the left hand high beam headlamp through the LH HIGH BEAM fuse and to the right hand high beam headlamp through the RH HIGH BEAM fuse. Ground for the left hand high beam headlamp is provided at G101. Ground for the right hand high beam headlamp is provided at G102.
The day time running lamps are the high beam lamps , just going through the DRL resistor . Your low beam bulb could be bad (open) . Check voltage with DVOM - digital volt ohm meter , there should be three wires at the headlamp socket , check the orange wire for battery voltage with low beams on .
forums.tdiclub.com > ... > VW MKIV-A4 TDIs (VE and PD)
Jan 23, 2014 - My driver's side lights are working fine - high and low beams. ... But it definitely looks like the big lamp on the driver's side gets brighter when ..... Drivers side headlight is very dim on low beam and goes out when on high beam ...
www.techsupportforum.com > ... > Automotive Support
Dec 14, 2008 - 8 posts - 2 authors
I have a 2000 chevy malibu with headlight problems. ... High beams work correctly.... I suspect a ground problem but cannot locate the ground cluster. ... Grouped together there, one pink wire to the Headlamp Switch, and one to ... my Wife's car has lowbeam on the left side that just won't work and now the ...
The adjustment screws/nuts should be located either on the top of the headlamp assembly,
behind the headlamp assembly, or near the frame rail by the radiator
You will have vertical adjustment screws for each independent beam
(separate highs and separate lows, but will be same screw if highs and
lows are the same bulb). You may also have additional horizontal
adjustment screws as well
your car on a level ground 30 feet from a wall and measure the height
from the ground to the bulb and mark on a wall (do this for highs beams
and low beams if the bulbs are separate, if highs and lows are the same
bulb, only do it for the lows)
For Low Beams: If the headlights read VOR, then
aim the brightest part or cutoff part just below the mark on the wall.
If it says VOL or nothing, aim them 2 inches below the mark on the wall.
For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.
ya its is prolly the bulbs, open your hood. look behind your headlamps, some have covers for the low beam and high beam. if there are covers turn on your high beams so you will know which bulb is your lowbeam. if you can unplug them. after cover is removed and you can acces the bulbs. they either twist out, lefty lossey. or they have little metal retainers that you have to move a certian way before you can swing the retainer out. its like a door you just have to unhook the proper side of retainer and the other side will be hinged. use a flash light and look at it close. good luck
Your headlamps [lowbeams] work with the alarm system under the passenger seat. Any malfunction with the alarm devices under the seat will interfere with your headlights [lowbeams] functioning . I used to have the same problem with mine until I changed my alarm devices. I will advice you to go to a junckyard near you and remove the passenger seat from an 84-89 300zx and with a 14mm socket remove the seat,then; used a 10mm socket to remove the alarm devices. Do not worry, the wirings are the same on all of them. Good luck!