its a gray bubble on the dash close to the glass
My auto lamp light sensor is not working on my Mercury Sable 2002. Why?
Replace auto lamp module.
Might be able to get at in from underneath but probably will have to remove the dash cover
The photo sensor for the auto lamp and auto dim on the 1989 Lincoln Town Car is located below the rearview mirror. The photo sensor for the auto lamp and auto dim on the 1989 Lincoln Town Car is located below the rearview mirror.
in the middle of the dash, close to the windshield.
we use mercury lamp instead of ordinary lamp because ordinary lamp has many wavelengths when mercury lamp has single wavelength so in constant deviation we use only mercury lamp.
for diffraction grating mercury lamp is used not sodium lamp.
the supply voltage to a mercury vapour lamp (from the electromagnetic ballast) is 130vac
It is a gas discharge lamp which uses mercury in excited states.
yes, there is a coating in the lamp, which contain mercury
They are in the central junction box. [the fuse box under the dash] But they are integral with the box. You have to remove the fuse box, take it apart, and they are inside, soldered in. If you can solder, you can replace them.
It is a High Pressure Mercury Vapour lamp.