![when installing my fog lights which is right and left when installing my fog lights which is right and left](https://www.dhresource.com/0x0/f2/albu/g8/M00/32/FB/rBVaV1yMXrSAHSuIAALWGE16LgE082.jpg)
Checking the exhaust gas temperature sensor.Electronic boost pressure control- turbocharger actuator testing.Ultrasound-based parking aid - park distance control (PDC).ABS/ESP control units for braking and driving dynamics.Programming car keys and changing batteries.Home / Technical / Car electronics and electrics.Thermal management in electric and hybrid vehicles.Car refrigerant & oil filling quantities.Home / Technical / Car air conditioning.Basic principles of car lighting technology.Use a short piece from the switch to a close ground. If this is the case, then run a 16-gauge wire to the fuse box under the dash and hook it to any fuse that has power only when the key is on. If the switch is a lighted switch, some light up with the way it is already connected and some need power for the light. The lights can be turned on or off safely at any time. Put a yellow circular wire connector on the last wire that goes to the battery and attach it to the positive post of the battery. Attach a yellow connector to the black wire (ground wire) at the fog lights, then attach it to ground. Connect the 10-gauge wire from the relay to the fog lights positive wire with a yellow butt connector. Put blue spade terminals on the ends of the 16-gauge wires to the switch and plug them into the back of the switch. Attach a spade terminal on the second wire to the switch and plug it into the SW terminal to the relay.
![when installing my fog lights which is right and left when installing my fog lights which is right and left](https://img.joomcdn.net/a93468346eff4d2a80c4ea875899843406e5f77b_original.jpeg)
Attach a spade terminal on the wire and push it on the ground terminal of the relay. Cut a piece of 16-gauge wire to go from the ground on the relay to a ground on the chassis or battery negative. Plug this into the battery + terminal of the relay. Put the piece of 10-gauge which goes to the battery positive and one of the 16-gauge wires going to the switch together in a yellow spade connector. Cut another length of 10-gauge wire to reach the fog lights. Cut one length of the 10-gauge wire to reach from the battery positive terminal to the relay and two lengths of 16-gauge wire to reach from the relay to the switch. Mount the switch on the bottom of the dash or any convenient place. Purchase a standard 4-post fog light relay, a 30-amp inline fuse, a remote switch that lights up to show when it is activated, 2 rolls of wire-one 10-gauge and one 16-gauge roll, and a pack of assorted wire connectors. You can also wire the fog lights to a separate switch in the cabin. Now the fog lights will come on with the lights on high beam.
#When installing my fog lights which is right and left install
Install the wire where it can be tied to the exiting harness and replace the bottom cover to the fuse block. Use a 10mm wire and a piggyback clamping wire connector on the wire for the lights. Once found, check with the ohmmeter from the topside to the bottom to be sure it is the right wire (you are looking for continuity). Be careful not to pull any pins out of the terminals while probing for the wire with continuity on the backside of the terminal. Turn the fuse block upside down and remove the bottom section of the fuse block. Cut or remove any device holding the harness to the fenderwell so that some slack will be available to turn the fuse block upside down. Remove the bolts holding the fuse relay box to the fenderwell. Remove the negative terminal to the battery. Once that is found, mark it or remember its location in the block, because that is the wire that the new lights will be hooked up to. Check the remaining terminals for continuity to the headlight connector.
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When a ground is found, remember which terminal it is. Put the voltmeter on ohms scale and remember which terminal was hot-do not touch this terminal while on ohms or it will blow the fuse in the voltmeter. One terminal will have power all the time. Pull the relay out and test the terminals for power with a voltmeter (the key should be off). Locate the high beam relay for the headlights. It is possible to hook the fog lights up to the main fuse and relay box under the hood, although the degree of difficulty is much greater. The switch in the car takes hardly any power or amps and turns the relay on or off. The other two posts on the relay are for switched power from a switch in the car, and the other post is simply a ground. This is the same as a light switch in the house, except that it is turned on and off remotely. There is a 10mm wire that goes from the battery positive terminal to one terminal on the relay and a wire from the relay to the lights.