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Home >> Pontiac >> 1989 >> J2000/Sunbird L4-121 2.0L >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Description and Operation >> Fiber Optic Monitoring System

Fiber Optic Monitoring System


Fiber optics are non-electric light conductors made up of coated strands which, when exposed to a light source at one end, will reflect the light through their entire length, thereby illuminating a monitoring lens on the instrument panel or fender without the use of a bulb when the exterior lights are turned on.