There are a lot of videos of the same type on YouTube on how to make footwell lights with your own hands, where the wires lead from the door limit switches or the ceiling lamp, but my laziness found a new and quick way to make footwell lights on a VAZ-2114. I may not be the discoverer of this method, but I have never seen anything like it anywhere. So, let's look at the contacts of BI BSK.
Contacts BI BSK VAZ 2114
In my car, the footwell lighting is implemented through an open door indicator, the signal of which comes to the BI BSK, so this method can be considered the fastest and simplest. Operating principle: when the driver's door is opened, the signal comes to pin 6, and when the other doors are opened, the signal comes to pin 7. If you look at the signal table (below), pins 6 and 7 are ground. To make the backlight quickly, you will have to “work around” the car electrician a little. We power the positive wire of our backlight from wherever it is convenient, even from the cigarette lighter, and connect the ground wire to pins 6 and 7 of the BI BSK chip. Everything is ready, all that remains is to power the LED strip to the connected wires. In the end, we spent about half a meter of wiring and saved a lot of time.
It is worth noting that in order for the footlights to work correctly, you will have to connect pins 6 and 7 to each other, this did not affect the operation of my car in any way, at least I personally did not notice any changes. You can also theoretically consider other conditions under which the foot lighting will work; if interested, read after the signal table.
Signal table BI BSK VAZ 2114
In theory
1. Turn on the footwell lights when the key is inserted into the ignition.
According to the signal table, when the key is inserted into the ignition switch, a voltage of 12V appears on the wire of pin 9. Accordingly, we toss the wire to pin 9 of the chip and get a positive wire for illumination, and we toss the ground wire where it is convenient. Done, now when we insert the key into the ignition, our foot lights come on. They pulled out the key and the light went out.
2. When the lamp is turned on, the foot lighting turns on.
According to the signal table, when the lamp is on, ground appears on pin 8 of the chip.
Accordingly, we connect the ground wire to pin 8, and the positive one is convenient. Ready! When the interior light is turned on, the footwell lights come on. Let's give a round of applause to those people who dismantled the plastic and the ceiling to make the lighting for the feet directly from the lampshade.
3. Foot lighting when the ignition is on.
According to the signal table, 12V appears on pin 13 when the ignition is on. Accordingly, we connect the positive wire for illuminating the legs to pin 13, and the ground is convenient. Everything is working.
Causes of malfunction
On the road, it is especially unpleasant to discover that the cigarette lighter on a VAZ 2114 does not work. Having a standard set of tools will not help in repairing this element, so as a recommendation, we note that you can carry with you a set of fuses, wires, or a new cigarette lighter assembly. Its design itself is not complex and unreliable, but this does not prevent sudden breakdown. There may be several reasons for the malfunction:
- The design has a nichrome spiral, which burns out and wears out over time. Its damage leads to a malfunction of the cigarette lighter;
- No tension on the glass of the cigarette lighter. Damage to the positive wire or ground will prevent the cigarette lighter from working.
A situation where the cigarette lighter and radio of the VAZ 2114 do not work at the same time means one thing - the connection in the electrical circuit is broken. The design of the arrangement of wiring contacts in this model is such that several electrical devices can be connected to one electrical circuit at once. In our case, the pair in the electrical circuit for the cigarette lighter is the radio. The main reasons for the malfunction should be considered in more detail.
Fuse
The search for the reason why the cigarette lighter stopped working should begin by checking the fuse contacts in the mounting block. Depending on the type of mounting block, the location of the fuse responsible for this element is different. In both cases, the fuse capacity is 20 Amps. The photo below shows the location of the required F7 socket in the new block.
The old-style block looks a little different, but it’s easy to find the right connector.
The required fuse is located in the bottom row and is marked F4.
In an early variation of the block, F4 may be responsible for the operation of the radio. The lack of power to it indicates that the element has burned out. To quickly repair a breakdown, it is enough to have several 20 Amp batteries in stock.
Mounting block
In addition to blown fuses, the cause of the malfunction may be the mounting block itself. Fuse power mismatch, short circuit or contact oxidation leads to the absence of normal contact. It is not necessary to purchase a new unit assembly. Its price can vary from 4,000 to 7,000 rubles, so it’s worth trying to fix its seats and tracks yourself. If you see a melted fuse seat, then the reason why the VAZ 2114 cigarette lighter does not work has been found. To restore its functions on a budget, you can clean all contacts and re-solder the contact tracks.
Wiring damage
The lack of power in the wiring from the unit to the cigarette lighter itself is detected by checking with a multimeter.
The wiring of the structure includes three wires: to ground, to positive and to the backlight. Having a multimeter allows you to identify the problem by connecting test probes to two power wires. The presence of a beep on the multimeter indicates that power is being supplied. Also check the integrity of all connections. The ground to the cigarette lighter is constantly connected, so the wire constantly “suffers” from connecting devices to the socket. If you are looking for the reason why the cigarette lighter has stopped working, check all the contacts and wire connections to the device body.
Spiral burnout
The spiral on the cigarette lighter is the main element of its design. The spiral is directly involved in heating and igniting cigarettes.
Checking its functionality is simple - connect any device for charging phones to the socket. If the phone is charging, the heating element is faulty. The spirals are not sold separately, so you will have to buy a new housing assembly.
Why there is no light in the VAZ 2114 interior: the secrets of an electrician
The electrical equipment system of the VAZ 2114 car includes a whole range of different lighting devices.
It's good when it's light in the cabin
Conventionally, they can be divided into the following groups:
- Headlight;
- Tail lights;
- Lighting in the cabin.
To make it easier for the driver to navigate the road at night, halogen low and high beam lamps are installed in front of the car in the headlight unit. Turn signal lamps are also installed in one unit with them, so that when repairing the car the entire unit can be removed. At the rear there is one block on each side, which includes brake lights, turn lamps and reverse lamps.
