If the headlight that runs through the modulator first is out then the daytime running lights won't work. Change the bulb and the daytime lights should then work.
light sensitive sells
check fuse for the running light module.
I would start with replacing the head light switch
Loose connection SOMEWHERE. It could be a defective DRL (daytime Running Light) module
I believe it is under the dash on the pass side of van. If your daytime lights go on and off when driving it you better get it change >mine went out the security light came on and would not start.
well the headlight would not have light coming out of it.
there is a number of things that could cause this. here are a few easy ones to check. is the e-brake fully disengaged. are the bulbs burnt out. is the wiring harness plugged into the daytime lights bulbs and in good condition. if these check out, you may have a fault in the daytime running light module.
It is possible - you must splice the fog light power leads into the DRL circuit and they should come on as the DRL's would.
There are several things that can cause your day time running the light relay switch to malfunction in your 2001 Chevy. The most common cause is a loose or corroded ground wire.
During daytime, there is a lot of light in the surrounding. The bulb emits light in all the directions, hence the light is not concentrated. But in the flash light, the light is reflected .as a result of which all the light comes out in one direction. This light is concentrated. Hence it would be more useful during daytime.
the daytime running lites go out when you put the trans in park. they also go out when you depress the parking brake. i would start looking there.