Malfunction Indicator Lamp (Mil): Description
A Malfunction Indicator Lamp (MIL) is standard equipment on all instrument clusters ( Fig 1 ). The MIL is located in the Information Center area of the instrument cluster, to the left of center. The MIL consists of a stencil-like cutout of the International Control and Display Symbol icon for "Engine" in the opaque layer of the instrument cluster overlay. The dark outer layer of the overlay prevents the indicator from being clearly visible when it is not illuminated.
An amber Light Emitting Diode (LED) behind the cutout in the opaque layer of the overlay causes the icon to appear in amber through the translucent outer layer of the overlay when the indicator is illuminated from behind by the LED, which is soldered onto the instrument cluster electronic circuit board. The MIL is serviced as a unit with the instrument cluster.