All of the sudden fog lights are no longer working. Swapped 4 connector relay with one that I'm sure is good to no avail. I have no voltage on any of the four sockets in fuse boxt with engine running and fog light switch depressed. Could the reason the relay doesn't have voltage be because of a faulty fog light switch?
Systematically, what should be checked. Thanks, Steve
Yea, Toyota quality!
Have a helper turn the fog lights on while you feel the relay. I suspect you will not feel it click since there's no voltage to it. Start by checking the fuses. If there's a fuse just for the fog lights that will typically come after the relay and will not be the cause of missing voltages at the socket. That fuse will likely be okay. Look for a larger fuse that feeds multiple circuits.