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1978 M20J overhead map wiring question


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My cabin map light in the ceiling is not working and I've been able to determine the hot wire supplying power is to the switch is dead. The ground wire is however, supplying power. I checked the maintenance manual and the only guidance it provides is for replacing the bulb and switch. There's nothing mentioned about the wiring, from what I could find.

Question is: Does the hot wire go from the light to the switch and direct to the battery, with an inline fuse in the wire? Does anyone know how this is wired? I'm thinking of just running a new wire with a fuse in it to make things easy.

Thanks,

Steve

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