Headlight high beam flickering when low beam is on.

[Tommi]

I have a 99 Pathfinder ST and I am having problems with my headlights. All the lights work including the high, low beam and driving lights. Though when the low beam is switched on, the high beam sometimes flickers on going over bumps. I was thinking maybe a issue in the light switch stak on the steering wheel. Any advice would be great.

 

[mickmutante]

Maybe some rust or dirt on contact points... Or a loose cable

[RIPB.88]

Could also be a bent wire in the bulb itself making contact with the low beam when you hit bumps.

[RF600]

There is some fuseable links off of the battery. I would make sure that the connectors are making good contact.

[Slartibartfast]

If the lights were flickering off, the fuse links would make sense. Flickering on sounds like what they said ^^ about a weird bulb or bad wiring. If something's been chewing on your wiring, the high and low beam wires might just be touching when they wiggle.