Imagine a section of railroad track where the rails are the power source and the ties between rails are the lights. The rails will supply power and let's label them the black rail (hot) and the other rail white (neutral). The earth they are resting on is the ground (bare copper wire). So each light must be connected to black, white and ground. To switch all lights at once we need to open the connection just to the hot side. Wiring in parallel like this example you run a wire between each light and connect the incoming black wire to the light black wire and the outgoing black wire using a wire nut. You do the same for white and bare wires. When you are done you have a circuit that looks like the railroad track. You could connect a supply at either end and the lights would light. You could then just insert a switch in the black side and control all lights.
In a situation where the supply is closer to one end of the circuit is closer to the other end physically you do the following. Run a wire from the switch to end where supply is located. On this wire wrap about 3 inches of black electric tape on the stripped white pigtail on each end. This designate the white wire is hot. Now connect black wire to one side of switch and taped white wire to other side. Connect bare wire to green ground terminal on switch. At the supply end connect the black wire from supply yo black switch wire and black light wire to taped white wire. Connect grounds together. Connect white supply wire to white light wire.
An isolation switch
Bad brake light switch behind your bake pedal.
A combination switch is the unit behind the steering wheel that hold the controls for the lights, cruise control and window washer.
There may be an issue with the relay switch going to the radio lights. There may also be an issue with the fuse.
There is a second light switch that activates the parking lights without the key being on. It is on top of the steering column behind the steering wheel. If this switch is turned off and the lights remain on when the key is off, there is a malfunction in this circuit.
It can be: * The headlight switch (there are multiple parts to the switch, for headlights, tail lights, dash lights) * A fuse (but if a fuse has blown out you need to figure out why, typically that's caused by a short) * A bad wire or connector.
check fuses, check brake light switch behind brake pedal.
BEHIND THE BRAKE PEDAL
If the interior lights stay on while driving on a 2002 Impala, there could be a problem with the headlight switch. Check the relay center for the headlights that is just behind the headlight switch.
the break light switch behind the pedal is probably sticking. cheap and easy to replace.
headlight switch
Wiring is behind the wall that travels to the ceiling. The electricity caused by the flick of a switch, travels through the hidden wire, to the lightbulb.