The driver side door switch no longer causes the dome light to come on with my 93 extended cab.
The passenger side door switch and dash light **** work fine with the dome light so it isn't the light.
Also the key in the ignition buzzer does not sound when the dome light is off.


Once the dome light is on the key in the ignition buzzer will sound when the driver side is open and will turn off when the door is closed.


Even though the driver switch seems to be working for the buzzer when the dome light is on, could this still somehow be the driver side door switch or is there something else I should be looking at?


May have nothing to do with it but this issue did seem to start just after replacing the trucks battery.

 

I have this same issue....also a 93

 

I think there's 2 wires to the door switch, one for the light and one for the buzzer.

 

While testing the fuses below the dash the driver side door light started working again. It also fixed an issue I noticed with the windshield wipers.

I am guessing that one of the fuses I tested had stopped making contact and just the little pressing I did with the meter leads fixed it.

So there is a second circuit besides the dome light one that effects the driver side door switch. Not 100% sure which one though.

Hope this helps.