Bad switch or wiring problem.
Not 100% sure about the Toyota truck, but I had that same problem with a late 90's Chevy. Turned out to be the clutch fan ($25 part) after I had replaced almost everything in the cooling system.
Is the selenoid getting power when the switch is turned to the start position? If yes, it's not a switch problem. Is power coming THROUGH the switch and to the starter when the key is turned to start? If not, it's a selenoid problem. If yes, it's a starter problem.
Turn the stupid headlight switch off. DeeDeeDee I have the same problem with my 87 Camry. You need to change the stop light switch.
A short circuit in the wiring or in the switch.
Light switch is a very cheap device, just replace it and there is no problem anymore.
I had this problem in my 1991 Suburban. It turned out being the A/C, Vent, Heater switch having burned contacts. Had the switch replaced and smell went away.
Perhaps you turned on the interior lights when you were adjusting the headlights?
An electric field causes electrons to flow when a switch is turned on.
I had this problem a month ago. After I disconnected the battery to clean it, the alam went off when it was reconnected. The owner manual said it would be turned off when the van is unlocked with the key or remote control. This did not work. If you have a valet switch (a small toggle switch under the dash) you place the key in ACC or ON and turn the switch to the opposite position. Hope that helps.
Overheating at the Fan Switch merges contacts inside. Replace the switch and the problem will go away.
Tailights or stoplights? Stop lights could be a defective stop light switch Tailights could be either parking lights are left on or a defective switch
Current flows through a wire when a light switch is turned on.
Most cooling fans will stay on for a minute or so after turning off the car in warm weather. If they stay on past a minute or so, then there is a problem.
When you have your head lights turned on (the switch turned to the right all the way), pull that same switch out towards you
Repair the problem that turned it on and then clear the code with an OBD2 scanner/code reader
I had this problem and it turned out to be a dirty park switch located in the console shift (automatic), that releases the ignition in park. The mech cleaned it and the problem never returned.
(http://www.wjjeeps.com/lamps/headlamps.htm) AUTO HEADLIGHTS CYCLE ON AND OFF WHEN THE VEHICLE IS PARKED AND TURNED OFF (with headlamp switch in "Auto" mode) The problem is most prominent on 1999-2001 WJ's, but it could apply to the 2002-2004 WJ's. The problem could be in the switch. The switch is a multiplexed circuit, the resistance of the HEADLIGHT ON position is very close to the AUTO position; the switch has been updated to correct this problem.
The load will be zero after the switch is turned off. if power is still being drawn then the switch is quite likely faulty
Probably a bad key switch.
It is probably caused by the ignition switch internals shifting (I had a similar problem before) and it turned out to be the ignition switch)
If you have any condition in your bathroom where a switch is malfunctioning you need to replace the switch or the device that is causing the problem. This is very dangerous in a bathroom because of the increased danger of shock because of moisture.
Dash illumination brightness control switch is turned off or the fuse is blown.
The actual problem is the starter continues to turn after key is turned off and pulled out of ignition.
You need to check the cooling fan relay and the cooling fan switch.it only turns on when needed.other then when you turn the ac on then its always on.The reason the fan runs with the air conditioning is "on" is to keep the high side pressure down. Otherwise it would increase to the point of something blowing out such as a hose or the pop off valve in the compressor. If the check engine light is "on" the it will have a code referring to the problem