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Could be the switch on the transmisson...I forget the exact name of the switch
Had the same thing happen on a '73 SB. It turned out (after much cussing) to be the ignition switch. Try replacing the switch with an OEM and "see" what happens!
when my 1986 w-250 turn signal switch went out the brake lights quit working.
There is a switch on the shifter or trans that turns on the lights when the vehicle is placed in reverse, it is out of adjustment or faulty. And don't forget the bulbs or fuses as a cause.
A "dimmer" switch will change the brightness of lights.
You have a short to ground somewhere. Start at each lamp socket, then the wiring and look for problems. Possible bad headlight switch. Also in checking shorts, don't forget the license plate light in addition to all marker lights. Dash lights normally go out when the tail light fuse blows as dash lights are fused from the tail light circut.
No, the fog lights have a switch.No, the fog lights have a switch.
You either got a bad new Switch or more likely you have a power supply problem to the park side of the switch.
There are no fog lights if there is no switch. it would be labelled.
The switch should be where your light are. You just pull out on the light switch but the fog lights will not come on unless all lights are on.
A light switch turns on lights because when flipped, it completes a complete circuit.
The switch should be the same as your headlight switch. If not then you will either need to install your own switch for the running lights or buy a new OEM switch module.