Main headlight on near side not working

Check the headlight grounds, even if they are tight turn the screw holding them to the inner fender near headlight a little to dislodge corrosion. Also check the headlight connectors (including at the head light bulbs) for signs of heat damage, you can smell burnt plastic and the brass connectors will be discolored.

what year,?
what country?
got DRL lighting, as is common in CANADA?

DRL is daytime ruinning lights ( run during day, its a feature)

intermintant loss of power to headlights clock air conditioning 2001 toyota avalon ! solution....new alternator and new battery fitted.

your headlight work (LOW) and (H) , let me know .

The headlights run through a relay (#46) through the BCM. If the relay were bad (very common and has a recall) both lights would not work. Sooo, I'm thinking check the wiring and pigtail that goes to the bulb. People that use Silverstar halogeon bulbs will burn that wire and or the connector. Make sure these are sound, check for power at the connector too.

reasons bulbs keep blowning.your head light bulbs is halogen bulbs.dont touch with bare hands.the oils on your hands will make them over heat and blow.so use clean gloves on your hands when replacing the head light bulbs.if all is good.check alternator out put.it could be overcharging causing too much current flow through electrical circuit blowing out bulbs.use a digital volt meter hook it battery with car running battery voltage should be 13.5 to 14.5 volts. if it is 15 to 16 volts too many volts.alternator is faulty.due to lock out features turn off radio before disconnecting battery cables so you wont lose radio playing code.

Headlamp doors are vacuum operated. Chk for a vacuum leak.

ITS WILL BE A BAD EARTH ,, CLEAN THE EARTHS UP ON BOTH LIGHTS NISSAN A BAD FOR THIS PROBLEM ,, SAME OVER HERE IN THE UK ,, POLICE GIVE TICKETS FOR ANY THING

if you are saying the front side lights are going off but the headlights remain on ? then could you try this ? put the h/lights on main beam mode then whilst on main beam turn off lights if h/lights go off now ? then with lights still off put onto dipped beam with the switch/stick if h/light come on it is most probably the dipped beam headlights relay that has gone faulty as the h/lights have 2x relays 1for dip +1 for main beam if the above does not make any difference ? it may well be the switch assy hope this helps

Maybe the parts you've replaces not fit with each other.