Federal
Instrument Cluster Component Locations:
To test the Malfunction Indicator Light, located in the instrument cluster, turn the ignition switch on. The light should illuminate. This insures that the light is operative. If the light bulb does not illuminate the most likely fault is a defective light bulb.
If the light tests good the other possible causes are, the ECU not supplying power, the wiring harness or instrument cluster printed circuit board (refer to ELECTRICAL AND ELECTRONIC DIAGRAMS).