My passenger side,and rear power windows dont work and my lights dim when i try and let the passenger side window down the rear windows cause the car to do nothing. when i first bought the car the rear windows didnt work but both my driver and passenger windows did the driver side still works but not if i press the passenger side button to many times then i must shut the car off fot the driver side to work again.

SOURCE: passenger side window

it could be a bad swich on the passenger side because they comunicate each other, or sometiems the wiring brake just by the door where all the wiring goes to the boddy you need to open the black hose with a nife and look for broken wiring circuits

SOURCE: 2003 pontiac montana passenger side power window

mine does that. i just pull the switch a little harder on drivers side and it works

SOURCE: On dim all four headlights are on, but the inner

first i would want to know that all the headlamps are in good working order. it kind of sounds like these are also bad bulbs. you will also need to look for good ground wires just behind the headlamp assemblies. to answere your question, YES. if things were not repaired properly and without attention to detail then you could have wiring issues. on the plus side it doesnt sound too difficult. try these items first.

SOURCE: 2005 Jeep Liberty Sport. Headlights. Passenger Side is dim

TEST
remove both bulbs from the lamps but leave them on their wires switch on and see if the bulbs are still different brightness if not they the passenger side lamp housing has damaged mirror is dirty or missalined and needs adjustment. if they are different brightness then this may be a earthing problem.

SOURCE: replaced high and low beam headlights on passenger

Turned out to be a 15 amp fuse not making full contact. Thankyou anyway gentlemen.