High beam lighting issue

[memnoch]

Hi Everyone,

I have a 1991 80 series.

I have an issue with the head lights, when I turn on the low beam (normal driving lights) the high beam lights come on but only very dimly. When I turn on the high beam they work fine. I am concerned that there is a short somewhere or is this normal.

David

 

[clivehorridge]

Not an auto electrician by a long way, but I suspect a bad earth somewhere, meaning that the dipped beam is earthing through the high beam somehow...

 

[Chris]

As an educated guess I would say that the connector block on the back of the lamps has carbonised due to the current and is conducting power to the high beam when it shouldn't. Usually this is because they have been running higher wattage lamps. It's a bit of a trait on all Toyotas. Pull the connector off the lamp pins and see if it falls apart in your hands.