A wait-to-start indicator is standard equipment on all instrument clusters. However, on vehicles not equipped with the optional diesel engine, this indicator is electronically disabled. This indicator is located near the lower edge of the cluster overlay, between the speedometer and the tachometer.The wait-to-start indicator consists of a stencil-like cutout of the International Control and Display Symbol icon for Diesel Preheat 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 indicator to appear in amber through the translucent outer layer of the overlay when it is illuminated from behind by the LED, which is soldered onto the instrument cluster electronic circuit board.The wait-to-start indicator is serviced as a unit with the instrument cluster.