Many drivers forget to turn on the headlights when driving, and turn them off when the ignition is turned off. And this faces a fine of 500 rubles, and a complete discharge of the battery, if you forget to turn off the headlights. And this has already happened to me more than once. I did homemade, which automatically turns on the side lights and dipped headlights when starting the engine, and turns it off when the ignition is turned off.
Now I completely forgot about turning the headlights on and off, for me all this is done by a homemade product. Here is her outline.
We will need the following materials and tools:
1- 12V relay with two pairs of open contacts, designed for a current of 10-30a. For example, Res6 RFO 452. 104. It is possible and automobile. 2- automobile wires, preferably of different colors with a cross section of 0.75-1mm. 3- push-button switch, or any other. 4- solder, 5- soldering iron, 6- insulating tape, 7- tweezers, pliers, cambric. We assemble as follows:
Step 1
We check the operability of the relay by connecting + 12V power from any power supply or a car battery to its winding, relay contacts 1-3 and 4-6 should close.
We set the multimeter to measure resistances of 2000 ohms. Open contacts - the multimeter shows 1, and if closed, it shows 0.
Step 2
- Solder wires 35cm long, red to terminal 7 of the relay - this will be + 12V power, the black wire to terminal 8, this will be -12V. Next, solder the yellow wires to 1 and 3, and the blue wires to 4 and 6 relay outputs.
Step 3
We dress cambrics on the relay outputs so that they do not short circuit with each other. We tighten the wiring harness with electrical tape in two places. We connect wires with the “mother” terminals to the B1 switch, the homemade product is ready.
Step 4. Connect it to car. To do this, connect the red homemade wire to a wire that matches the output of 12 white pads on the Chevrolet Niva dashboard. And the black wire is connected to switch B1, and the second wire of the switch is connected to the car body. Yellow wires - to conclusions 5 and 6 of the switch of light of headlights of the car. Blue wires - to conclusions 1 and 2 of the switch of external illumination of a car. We attach the homemade product with a car tie to the wiring harness in a place convenient for us near the dashboard, and the B1 switch is in place of any stub of the switches that are not installed on the car. This homemade product is installed on the car 8.01.2017 year and works flawlessly. Switch B1 is needed to turn off the circuit during prolonged warming up of the car in the parking lot.If the circuit fails, turn it off with the B1 switch and turn on the car light as usual, because the car circuit has not been changed.