The VAZ 2107 ignition relay is used to turn on the power to the ignition system on carburetor and injection modifications of the “Seven”. Sometimes this part causes the machine to malfunction and has to be replaced. You can localize and fix the problem yourself, without resorting to the services of specialized service stations. This will require a minimum of tools and knowledge of where the relay is located and how to change it correctly.
Pin type fuses
F1 (10A)
- Heater motor
- Reversing lamps
- Rear window heating indicator
- Rear window heating relay (winding)
F2 ( 10A)
- Windshield wiper and washer motor
- Motor for headlight cleaner and washer
- Windshield wiper relay
- Headlight cleaner and washer relay
F3 (10A)
- Spare
F4 (10A)
- Spare
F5 (20A)
- Rear window heating element and heating relay
F6 (10A)
- Cigarette lighter
- Socket for portable lamp
- Watch
F7 (20A)
- Sound signals
- Signal relay
- Radiator cooling fan relay (contacts)
- Radiator cooling fan motor
F8 (10A)
- Hazard warning switch with warning lamp
- Relay-breaker for direction indicators and hazard warning lights
- Turn signal indicator (in hazard warning mode)
- Direction indicators (in hazard warning mode)
F9 (10A)
- Generator voltage regulator
- Rear fog lamps and their indicator
F10 (10A)
- Turn signals (in turn signal mode)
- Turn signal interrupter relay
- Turn signal indicator
- Pneumatic valve control system
- Tachometer
- Fuel gauge
- Fuel reserve indicator
- Parking brake indicator
- Insufficient oil pressure indicator in the engine lubrication system
- Coolant temperature gauge
- Voltmeter
- Emergency indicator of the working brake system
- Battery charge indicator
- Carburetor choke indicator
- Electric fan relay (winding)
- Electric fan thermal switch
- Generator excitation winding (generator 37.3701)
F11 (10A)
- Interior lighting
- Brake light bulbs
- Luggage compartment lamp
F12 (10A)
- High beam headlights (right headlight)
- Windshield wiper and headlight wash relay (relay coil)
F13 (10A)
- High beam headlights (left headlight)
- High beam indicator
F14 (10A)
- Front side light (left headlight)
- Tail light (right light)
- License plate lights
- Engine compartment lamp
- Side light indicator
F15 (10A)
- Front marker light (right headlight)
- Tail light (left light)
- Cigarette lighter lamp
- Instrument lighting lamp
- Glove compartment lamp
- Clock (lighting lamp)
F16 (10A)
- Low beam headlights (right headlight)
- Windshield wiper and headlight wash relay (relay coil)
F17 (10A)
- Low beam headlights (left block headlight)
F18
- Spare
F19
- Spare
F20
- Spare
F21
- Spare
How to check and replace the ignition relay on a VAZ 2107
To check and replace the ignition relay, you will need:
- slotted screwdriver;
- crosshead screwdriver;
- key to 10.
You need to start by dismantling the instrument panel. Before starting work, disconnect the negative cable from the battery. To remove the instrument panel, you must perform the following steps:
- Use a slotted screwdriver to release the latches of the heating system adjustment handles;
- remove the handles from the levers;
- remove the central air duct nozzles by prying them off with a screwdriver;
- pull out the heater engine operating mode switch;
- remove the wire ends from the switch;
- pull out the self-tapping screw plug by prying it with a screwdriver;
- Unscrew the self-tapping screw securing the instrument panel using a Phillips screwdriver;
- unscrew the nut securing the daily mileage reset handle;
- push the handle inside the instrument panel;
- remove the right edge of the instrument panel;
- unscrew the nut securing the speedometer drive cable;
- disconnect the hose from the econometric fitting;
- disconnect the wire connectors from the instrument cluster;
- remove the instrument panel.
The ignition relay is mounted on a bracket located under the instrument panel. To remove the relay, you need to use a 10 mm wrench to unscrew the nut that attracts it to the bracket. To check the functionality of the relay, you need a multimeter or an indicator lamp. You can test the operation of the relay directly on the car or by powering it from an autonomous 12 volt source. When voltage is applied to pins 85 and 86 of the relay, the contacts between pins 30 and 87 should close. If this does not happen, the VAZ 2107 ignition relay needs to be replaced. This is done like this:
- unscrew the fastening nut;
- disconnect the wire block from the ignition relay;
- install a new relay;
- connect the wire block;
- secure the relay with a nut.
After replacing the relay, you need to reinstall the dashboard. To do this, follow these steps:
- connect the wire blocks to the instrument panel;
- tighten the nut securing the speedometer drive cable;
- attach the hose to the econometer;
- insert the instrument cluster into place and press on it until the latches lock;
- secure the daily mileage reset handle;
- tighten the self-tapping screw securing the instrument panel;
- close the self-tapping screw with a plug;
- connect the wires to the heater operating mode switch;
- snap the switch into place;
- install nozzles for the central air duct of the heating and ventilation system;
- install handles for adjusting heating and ventilation modes.
This completes the replacement of the VAZ 2107 ignition relay. You can connect the ground wire to the battery and check the functionality of the ignition system.
Cylindrical fuses
F1 (8A)
- Heater motor
- Reversing lamps
- Rear window heating indicator
- Rear window heating relay (winding)
F2 (8A)
- Windshield wiper and washer motor
- Motor for headlight cleaner and washer
- Windshield wiper relay
- Headlight cleaner and washer relay
F3 (8A)
- Spare
F4 (8A)
- Spare
F5 (16A)
- Rear window heating element and heating relay
F6 (8A)
- Cigarette lighter
- Socket for portable lamp
- Watch
F7 (16A)
- Sound signals
- Signal relay
- Radiator cooling fan relay (contacts)
- Radiator cooling fan motor
F8 (8A)
- Hazard warning switch with warning lamp
- Relay-breaker for direction indicators and hazard warning lights
- Turn signal indicator (in hazard warning mode)
- Direction indicators (in hazard warning mode)
F9 (8A)
- Generator voltage regulator
- Rear fog lamps and their indicator
F10 (8A)
- Turn signals (in turn signal mode)
- Turn signal interrupter relay
- Turn signal indicator
- Pneumatic valve control system
- Tachometer
- Fuel gauge
- Fuel reserve indicator
- Parking brake indicator
- Insufficient oil pressure indicator in the engine lubrication system
- Coolant temperature gauge
- Voltmeter
- Emergency indicator of the working brake system
- Battery charge indicator
- Carburetor choke indicator
- Electric fan relay (winding)
- Electric fan thermal switch
- Generator excitation winding (generator 37.3701)
F11 (8A)
- Interior lighting
- Brake light bulbs
- Luggage compartment lamp
F12 (8A)
- High beam headlights (right headlight)
- Windshield wiper and headlight wash relay (relay coil)
F13 (8A)
- High beam headlights (left headlight)
- High beam indicator
F14 (8A)
- Front side light (left headlight)
- Tail light (right light)
- License plate lights
- Engine compartment lamp
- Side light indicator
F15 (8A)
- Front marker light (right headlight)
- Tail light (left light)
- Cigarette lighter lamp
- Instrument lighting lamp
- Glove compartment lamp
- Clock (lighting lamp)
F16 (8A)
- Low beam headlights (right headlight)
- Windshield wiper and headlight wash relay (relay coil)
F17 (8A)
- Low beam headlights (left block headlight)
F18
- Spare
F19
- Spare
F20
- Spare
F21
- Spare
Design and principle of operation of the lock assembly
On a VAZ 2109 car, 2 standard modifications of the lock can be installed. The old one has catalog number 21080-3704005-60. It features four key positions (long), and also contains an ignition relay. The new unit with catalog number 21080-3704005-30 has only three key positions and does not have a relay.
To connect all the wires to the VAZ 2109 car lock, a contact group is used. Each of the key positions has its own blocking, and therefore consumer groups.
Installing an electronic BSZ instead of a contact one
Today it is very rare to find a “seven” with contact ignition. With the arrival on sale of switches, distributors and coils for electronic spark generation systems, owners of classics began to massively re-equip their cars.
What is included in the BSZ kit
The process of converting a contact system into an electronic one is quite simple, and also inexpensive. The cost of an electronic ignition kit for a VAZ 2107 is about 2,500 rubles. It includes:
- transistor switch type 3620.3734 with connector;
- coil 27.3705;
- contactless distributor type 38.3706;
- connecting wires.
In addition, you will need spark plugs (preferably new ones) with a gap of 0.7–0.8 mm and a set of high voltage wires. Coil type B-117A (used in a contactless system) is not suitable for electronic ignition . Its characteristics do not correspond to those of other equipment in the circuit.
Video: review of BSZ elements for “classics”
Required Tools
To complete the work you will need:
- 8, 10 and 13 mm wrenches;
- screwdriver with a Phillips blade;
- drill;
- spark plug key;
- 36 mm wrench or with a ratchet mechanism for turning the crankshaft;
- self-tapping screws;
- pliers.
Work order
Work on converting the ignition system into a contactless one is carried out in the following order:
- Disconnect the terminals from the battery. We remove the battery and put it aside.
- Remove the high voltage caps from the distributor cap and from the spark plugs.
- Using a special wrench, unscrew all the spark plugs. We screw new ones in their place.
Video: installing BSZ on a “classic” VAZ
Connection diagram of the VAZ 2110 mounting block
The order of conventional numbering of plugs in the connecting blocks of the mounting block and the wires connected to them
Additional items
Under the hood
Additional headlight wiper fuses (2A rating) protect the motor windings. They are located on the supply wires next to the gearmotors.
The starter activation relay 113.3747 or 90.3747-10 is located in the engine compartment on the right mudguard.
In the cabin
The windshield wiper relay (PC-514) is mounted under the panel on the left under the trim.
The ignition relay and the hazard warning and turn signal relays are installed on the front panel behind the instrument panel. The ignition relay (113.3747-10 or 90.3747-10) and the hazard warning and turn signal relays (23.3747 or 231.3747) have a bracket for direct mounting on the body.
The fog lamp fuse is located in the gear shift compartment, not far from the radio.
In the cabin
On classic and modern sevens there is no interior unit. In some cases, users independently transfer the inserts to one panel under the tidy. This is not necessary - the elements are installed under the casing and are not difficult to access.
Mostly fuses responsible for auxiliary equipment and units that are not related to the power plant are mounted here.
Repairing a broken track
The procedure looks like this.
In severe cases, when a large number of tracks are damaged or the board itself is burned out, it is recommended to replace the entire panel.
The fuse box of the Lada 2107 is not complex in design or difficult to maintain. The car has a minimum number of inserts and is easy to maintain even by a novice driver.
Specialization : Graduated from the State Automobile University, worked for 20 years at GAZ-56, now I drive a Zhiguli.
Source
Looking for a starter relay
If any devices on the car fail, then first of all you need to check the relay or fuse in the circuit. Therefore, as soon as after diagnosing them, it will be possible to draw conclusions about the problems as a whole.
As you know, on a VAZ-2112, even when the engine is not running, all devices are powered directly from the battery, and when it is started, the energy comes from the generator. And when the current in the circuit increases or there is a short circuit, the fuse simply blows, and a relay is provided for the most powerful devices.
Photo of the starter relay in the fuse box
In order to get to the fuse and relay box in which the starter relay is installed, you need to find the cover on the underside of the dashboard. Then, press the locking button and fold it down.
The starter relay is marked with a red arrow
Replacing the old element with a new one must be done in the reverse order of removal.
Please note that in various vehicle configurations, additional relays can be installed on top of the unit, which are intended for certain groups of devices. But the starter relay is always installed second, on the right.
The most common ignition switch problems.
Many owners of "nines" note one unpleasant feature of their iron "horses" - that over time, the ignition switch in them simply begins to jam. Even if it was installed quite recently. Most likely, this defect is a manufacturing defect and you need to contact the store where you purchased the new ignition switch (for this purpose, it is better to save receipts for such purchases) to make a return. However, if this option is not available to you, do not despair!
The fact is that when the ignition switch jams when starting the engine, voltage is supplied to the starter, which can lead to failure of this part. But this does not mean at all that you need to run to the auto store for a new part. In this situation, you can simply buy silicone grease and apply it inside the lock every time the lock jams.
Ignition switch consumers.
This article will be useful to those who want to upgrade the ignition switch (for example, start the engine with a button) or are experiencing problems with the lock. Only the electrical part of the lock is described. We will consider the ignition switch in the VAZ-2114 version. It, unlike the VAZ-2108 lock, works in conjunction with the ignition relay.
The lock has 4 positions, of which only 3 are actually used:
0 - all consumers are turned off (used extremely rarely) 1 - ignition is on 2 - starter is on 3 - parking (the key is removed from the lock) Voltage from the battery is always supplied to contacts 7 (pink) and 8 (brown) of the lock. These wires are connected in parallel and connected in the mounting block. The division into two wires was apparently done for reliability, or it may have developed historically - these wires can be replaced with one wire. The brown wire connects the ignition system (carburetor version), instrument panel and some other consumers. Pink is responsible for the rest of the load.
