Cab light in 91 Mazda B2200.?

Question

My cab light suddenly stopped working on either the door or on setting and the bulb isnt burnt out and the fuse is fine what else could be the reason?

Answer 1

Use a test light to see if you have power at the light. Test both ends of the bulb. If you have power at one end of the bulb and not the other, the bulb is bad. If power at both ends of the bulb, then the ground is bad. This could be either in the light unit itself or at the door switch. Take door switch out and ground connector. Check both doors also.