I have a 1996 Isuzu Rodeo 3.2L V6 with 114,000 miles. Last night when I turned on my headlights, the left half of my instrument panel did not light up. This includes the tachometer, voltmeter, and engine coolant temperature gauge. These gauges are working properly; they are just not lighting up. The rest of the gauges on the instrument cluster are working correctly; only the left half is not lighting up. Could this mean that an instrument cluster light bulb has gone out? If so, does anybody have any directions and information on replacing that light bulb. Any help will be greatly appreciated.