1991 cavaliers did not come with the option of daytime running lights they first appeared in 1995 as standard on 1996 models.
The day time running light module is located behind the dashboard. The module, can be found on the drivers side of the dashboard.
usually due to a defective daytime running light module failure..
under your bed if you live near the equator.
Im pretty sure that you half to purchase a daytime running light module from the dealorship.
The computer attached to the under hood fuse box handles the day time running light functions.
The problem may be the electronic module that controls your daytime running lights. If there is a plug to the module, unplug it and the hi beam lights will work. The Hi Beam light indicator may not work now though until you replace the module.
Check the daytime running light module located below the left front turn signal on the inside of the front fender. It is probably feeding 12 volts into the headlight.
Time 'til Light - 1991 was released on: USA: May 1991 (Philadelphia Festival of World Cinema)
You have a short circuit. make sure a bare wire is not touching metal Found the answer: I had a bad daytime running light module.
have your day time running light module checked the same thing happened on my car
I believe that is a defective DRL module
Many automotive stores carry a module that you wire into the car's headlight system that will allow the headlights to run always on when the engine is running. One such example is here. http://www.brandsonsale.com/daytime-running-light-kit.html (Google for Day Time Running Light Kit and you'll see several different options as well)