Headlights, low beams work fine. when high beams are turned on, the left side goes out completely and there is no change to the right side.

So when the car is off and you have your headlights switched on both the low beam setting and high beam setting work normally. But once you start your car your low beam headlights work but when you switch to your high beams the right headlight shuts off? I don't know how that'd be possible since the controls for your high beam and low beams aren't connected to whether the engine is running I'd suggest changing your headlight bulbs

Find the hot and take it to the bulb

bad connection or bad earth check all connection or bulb

I would check for the groundwire continuity

Driver side - dim low beams and no hi beam - Subaru Outback ...

www.subaruoutback.org > ... > General > Electrical & Electronics

Oct 11, 2014 - Hi everyone, My drivers side headlights are dim on low, (car has separate bulbs ... When the headlight switch is turned ON, but for low beams, ...

Driver-side Low beam Not Working (electrical issue not bulb ...

www.hummer4x4offroad.com/.../showthread.php?...Driver-side-Low-be...

Mar 12, 2015 - 10 posts - ‎4 authors
The high beam continues to work on both sides...I pulled the Driverside headlamp fuse and then both left and right beams lit up but very dim.

High beams ok, but not low beam - one side only - TDIClub Forums

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 ...

Dim driver's side headlight (low & high beam) - GrandAmGT.com Forum

www.grandamgt.com > ... > Technical Q&A

Dec 11, 2002 - 6 posts - ‎4 authors

High beam switch moat likely, have you checked relays and fuses?

My 2011 Traverse had no LOW BEAMS ( Right and Left Side )
I changed the LOW BEAM RELAY ( a 4 prong relay ) in the fuse / relay box located under the hood on the passenger side. It didn't change the situation. Voltage was good at the relay terminals and I plugged the relay into another GM car and it worked fine. The NEXT place the voltage goes to is the LOW BEAM HEADLIGHTS. The easier way to change them on a 2011 Traverse is to go through each wheel well - there is an access port behind the wheel well liner. YouTube has photos and videos on how to take this apart. Don't try to attack the problem from above in the engine compartment, the wheel well is the easier ( notice I said easier not easy ) way to go about it. BOTH of my Low Beam headlamps driver side and passenger side were burned out. I just bought the vehicle ( yeah...I know...who doesn't check the lights before buying a vehicle - right ? ) and at my wits end figured that it is such a pain in the rear to change the bulbs, that the lazy bastards that owned the vehicle just drove with one headlight and THEN the second one went out. If you can hear your low beam relay clicking ( you can feel it too if someone turns the headlights on with the key in the ignition turned to ON ) and you're getting 12 volts or higher at the relay terminals in both places ( the relay coil power and relay output terminals ) then the only thing next is the bulbs themselves. Thank God for small miracles. NOBODY likes an electrical / electronics problem.

the high beams work fine and power goes to the only when vehicle is on when it is off no power gets to the low beam side of the right headlight. ????????

WAY TO GO !!! another "great idea" from vehicle manufactures

If you have separate bulbs for the low and high beams(4 light system), if you pull the turn signal and hold it, all 4 lights will stay on until you release the turn signal. You need to replace the bright bulb on the right side and the low bulb on the left side. If your headlights only have one bulb on each side, then you will have to replace both of them to get everything to work.

faulty light switch or light control module