99 Silverado DRL's

This afternoon driving home from work I noticed my left Daytime Running
Light was out. (Saw the reflection in a vehicle in front of me at a stop
light).

Exactly how do you check the light? The bulb appears to be OK but the only
way the lights are on is when you are driving. Putting the vehicle in park,
the lights go out. Putting the emergency brake on and the truck in drive,
the DRL's don't come on.

I pulled the vehicle in the garage and could see on the wall the left DRL
was not on. But I would like to check the voltage at the plug to make sure
it is getting power.

Any ideas?

Thanks

RHinNC wrote:
> This afternoon driving home from work I noticed my left Daytime
> Running Light was out. (Saw the reflection in a vehicle in front of
> me at a stop light).
>
> Exactly how do you check the light? The bulb appears to be OK but the
> only way the lights are on is when you are driving. Putting the
> vehicle in park, the lights go out. Putting the emergency brake on
> and the truck in drive, the DRL's don't come on.
>
> I pulled the vehicle in the garage and could see on the wall the left
> DRL was not on. But I would like to check the voltage at the plug to
> make sure it is getting power.
>
> Any ideas?
>
> Thanks

Use a set of wheel chocks in front and behind the tire. Turn the key on,
shift to neutral. You don't have to start the truck. Rest assured that the
bulb is bad. I always see someone with one of them out. I changed mine to
4157LL amber. They lasted 14 months before one burned out. I changed them
both.