Contact group of the ignition switch Lada Granta

I think that many car owners have encountered such a problem when, with excessive force when turning the key, it could remain in the ignition switch, or rather, its blade. In this case, you will have to replace the lock, since it is almost impossible to get the key.

On the Grant, as on other front-wheel drive VAZ cars, the lock is mounted on the steering shaft and secured using breakaway bolts. This was done specifically for security purposes, so to speak, to prevent unauthorized access to your car.

To replace the lock, you will need the following tool:

Phillips screwdriver
The chisel is narrow and sharp
Hammer
Key for 10

How to remove the ignition switch on a Grant

In order to get to the ignition switch structure on the Lada Granta, you need to remove the steering column cover. This can be done using a Phillips screwdriver.

After this, using a chisel and a hammer, we tear off the lock fastening bolts, as is clearly demonstrated in the picture below.

When the caps are already loose enough, you can unscrew them using long-nose pliers.

When all the bolts are unscrewed, hold the lock and remove the clamp securing it to the shaft.

And the lock on the back side.

Now you need to disconnect the two plugs with the power wires from the lock, as is clearly shown in the photo.

Preventive measures

In order for the factory wiring of the Lada Grant to serve for a long time and not break, experienced experts strongly recommend following a number of simple rules.

Periodically check all contact connectors and terminals for oxidation and rust. Such damage to the connections can cause a short circuit and a critical decrease in the conductivity of the line, which is perceived by the on-board computer as an error or breakdown.
Use only original consumables and electronic components. The use of counterfeit products does not guarantee the functionality of the circuit. At the same time, some elements, when damaged, cause a voltage drop in the network, which becomes a direct cause of failure of other equipment or a fire.
Use special oil to treat contact groups. The fluid is sold in auto shops or electronics stores. After treatment, the contacts are covered with a moisture-impermeable layer, which increases their service life by 2-3 times.
Carefully monitor the charge level and condition of the battery. The wiring of the Lada Granta critically perceives a significant voltage drop in the on-board circuits. As a result, this may cause damage to the firmware of electronic control units.

Installing the ignition switch

A new lock on Granta can be purchased at a price of 1,800 rubles. This is the cost of the kit with all the door cylinders and trunk lid. Installation is carried out in reverse order. We first install it on the shaft and try on the casing so that the lock sits exactly in the hole. After which you can finally tighten the fastening bolts.

It is necessary to tighten until the head of the bolt comes off when a certain torque is reached.

After which you can install the casing in place, having previously connected all the power wires.

PRACTICAL CHECK

In response to our request, AVTOVAZ representatives responded that they were aware of the problem. And they assured that the locks meet all international requirements, and spontaneous blocking is caused by the human factor, that is, it happens through the fault of the drivers themselves.

We started our testing with tests on a special site. Having accelerated the car a little, we turned off the engine and took the key out of the lock to lock the steering wheel. While driving, they turned on the ignition, unlocked the steering wheel, engaged second gear and released the clutch to start the engine without turning the key to the “starter” position. No matter how much we turned the steering wheel on a flat surface and on uneven surfaces, we could not achieve spontaneous blocking. I had to disassemble the lock to look at the problem from the inside.

Video review of replacing the ignition switch on a Grant

To understand this procedure more clearly, I suggest that you familiarize yourself with the video review of this repair presented below.

Since the design of the fastenings and the lock itself is no different from the tenth family, you should not pay attention to the fact that the review is shown using the example of the tenth.

The ignition switch in a Lada Granta car performs the function of supplying and interrupting power to electrical consumers under various operating modes of the vehicle. In fact, the ignition switch is one of the main power distributors in the entire car. The Lada Granta ignition switch (lock) with a mechanical locking device, an immobilizer antenna unit, a key position sensor and an electrical contact group is mounted on the steering column housing behind the steering wheel. The electrical contact group of the switch and the locking device are connected to each other, operate synchronously and are activated by the ignition key.

You will need: hammer, chisel, flat-blade screwdriver.

Detailed diagrams of nodes and blocks

1 — right headlight; 2 — electric motor for washers; 3 — left headlight; 4 — VAZ-2190 starter; 5 — rechargeable battery; 6 — main fuse block; 7 - generator; 8 — sound signal; 9, 10, 11 — front wiring harness blocks to the instrument panel wiring harness blocks; 12 — reverse lamp switch; 13 — electric fan of the engine cooling system.

1 – oil pressure warning lamp sensor; 2 – generator; 3 – throttle pipe with electric drive; 4 – coolant temperature sensor; 5 – ignition system wiring harness block to the instrument panel wiring harness block; 6 – solenoid valve for purge of the adsorber; 7 – speed sensor VAZ-2190; 8 – mass air flow sensor; 9 – crankshaft position sensor; 10 – oxygen concentration sensor; 11 – controller; 12 – diagnostic oxygen concentration sensor; 13 – ignition coils; 14 – spark plugs; 15 – Lada Granta injectors; 16 – blocks of the wiring harness of the ignition system and the wiring harness of the injectors; 17 – knock sensor.

Electrical diagram of the Lada Granta lighting control module

1, 2 – rear wiring harness blocks to the instrument panel wiring harness blocks; 3 – right side direction indicator; 4 – left side direction indicator; 5 – hand brake sensor; 6 – rear window heating element; 7 – interior lamp; 8 – switch in the driver’s seat belt; 9 – trunk lighting; 10 – electric fuel pump module; 11 – right lamp; 12 – trunk locking motor; 13 – interior lamp switch; 14 – additional brake signal; 15 — left lamp; 16 – rear wiring harness block to rear left door wiring harness block; 17 – rear wiring harness block to rear right door wiring harness block; 18 – rear wiring harness block to the front right door wiring harness block; 19 – rear wiring harness block to the front left door wiring harness block; 20 – airbag control unit; 21 – rear wiring harness block to the wiring harness block for license plate lights.

Malfunctions of the ignition switch of the LADA Granta

Ignition switch failures can be divided into two types: electrical and mechanical. Electrical faults include faults in the contact group of the lock, as a result of which individual energy consumers (most often the starter) or the entire Granta electrical system as a whole stop working. This also includes a breakdown of the car's immobilizer. Mechanical malfunctions occur due to breakdown of parts of the ignition switch or contact group, as well as physical wear of the contacts. This also includes cases when, due to poor contact, heating and melting of the plastic parts of the contact group occurs. Signs of a malfunction in the ignition switch of the LADA Granta:

the key does not turn;
when turning the key the ignition does not turn on;
The starter or other electrical appliances do not work.

The last two signs do not necessarily indicate problems specifically in the ignition switch, but they certainly appear when the contact group is faulty.

To eliminate the malfunction, it is necessary to replace the LADA Granta ignition switch or part of it, for example, a contact group.

What is needed to replace the Granta ignition switch

To replace the ignition switch you will need:

key to 10;
a thin chisel and a hammer (or a drill with a drill bit to drill out bolts with self-cutting heads);
screwdriver;
new ignition switch LADA "Granta" or contact group.

Grant relay diagram

Relay location in the main mounting block located in the engine compartment:

1 – drive of the cooler of the cooling system;
2 – central locking protection;
3 – secondary starter relay;
4 – additional part of the relay;
5 – turn signal and emergency signal breaker relay;
6 – wiper drive protection;
7/9 – insertion of high/low headlight modes;
8 – horn protection element;
10 – heated aft windshield;
11 – main relay block;
12 – fuel pump relay.

Pinout of the ignition switch for LADA Granta

The number of ignition switch connector terminals on the Grant has been reduced to three:

contact “30” (“plus”, connected to the ignition switch);
contact “15” (circuits powered when the ignition is turned on);
contact “50” (power supply to the starter solenoid relay).

The ignition switch has three positions: “ignition off”, “ignition on” and “starter”. Accordingly, the power circuit is either open or supplied to the ignition or to the ignition and the solenoid relay at the same time.

To replace the lock, you will need the following tool:

Phillips screwdriver
The chisel is narrow and sharp
Hammer
Key for 10

Where is terminal 30 located?

Here the side trim (2) in the driver's feet is unscrewed.
Arrows indicate mounting screws. Below it is a group of connectors (1). Under the side trim (1) on the passenger side next to the driver there is also a group of connectors (2). Arrows indicate mounting screws.

Right: The central switch unit (2) is located on the left under the instrument panel in the Audi A4. Above is the “13-place support for additional relays” (1).

Left: The illustration shows the placement of the central switch node sockets.

Standard terminal designations

The colorful mix of wires in a car is actually very well organized, since many parts of the car's electrical equipment are standardized. The numbers on various components and connecting elements of wires, as well as in electrical circuits on all German and some foreign cars have the same meaning:

Terminal 15 receives power only when the ignition is turned on from the ignition switch, while, along with the ignition/injection system, those consumers of electricity that should receive current only during operation of the vehicle are supplied with current. The wires to terminals 15 in most cases have a black sheath, sometimes with an additional colored stripe for certain current consumers.

Terminal 30 receives direct current from the battery positive or from the generator when the engine is running. If the tools are handled carelessly, this can lead to short circuits or cause sparks to rain if the wire connected to the battery negative is not removed. These wires, which are always live, are in most cases red, sometimes with additional colored stripes.

Terminal 49 refers to the intermittent and emergency light system.

Through terminal 53, voltage is supplied to the glass cleaning system.

From terminal 56, current is supplied to the low beam headlights through the yellow and yellow-black wires, as well as to the high beam headlights through the white and white-black wires.

Terminal 58 supplies power to the front parking lights, as well as the rear lights and license plate lights. The main color of the wire sheath is gray, sometimes with an additional colored stripe.

terminal 75 receives current when the ignition key is in the "On" position.

Terminal 31 is the ground terminal, through which the electrical consumer must be connected to ground in order to complete the electrical circuit. The corresponding wires have a brown sheath.

Labeled electrical connectors

In the Audi A4, individual wires are often bundled together in a black sheath, making it difficult to find a specific wire. In this case, orientation assistance is provided by multi-pin connections, which this chapter describes the exact number of wires and their exact location in electrical diagrams.

Terminal designation

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Let's look at the main wires, or rather groups of wires, they are often called buses in electrical circuits, and they have standard symbols:

– Terminal “31” is the wires that are connected to the car body (ground)

– Terminal “50” is the wire, roughly speaking, that goes to the starter.

– Terminal “30” are wires on which +12 volts are always present, regardless of the position of the ignition switch, i.e. they are directly connected to the + (plus) terminal of the battery.

– Terminal “58a” supplies current to the front parking lights, rear lights and license plate lights.

– Terminal “75X” – on this bus +12 volts is present only in the “Ignition” position, but is absent at start, i.e. this is the case when +12 volts disappears from this bus in the “Starter” position

– Terminal “15a” is the wires on which +12 volts are present, in the “Ignition” position and the “Engine Start” position. The voltage from bus “15” powers the important parts of the engine, without which it will not start: spark plugs, ignition coil, various valves and the “brains” of the engine.

All of the above wires (except for ground “31”) go to the ignition switch.

Advice from experienced motorists and repairmen on the topic of where terminal 30 is located on the VAZ 2114 - you are welcome. All about renovation. Here we teach you how to repair a car yourself. How to repair a car yourself at home. We will help you with repairs and repair the car yourself. We know how to restore a car with minimal investment. I have attached video instructions.

Category: Car repair

Laughter on topic: It’s infuriating when you have to wake up your royal majesty at 6 a.m. on state affairs.

Published by Admin: at the request of Ilfat

Reviews from the car owner: Dad plays with his little daughter. Suddenly his daughter pushes him away and says: “Okay, that’s enough, I have a headache!” Dad looks at mom in bewilderment: “Is this what you’ve been taught since childhood, or what?”

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How to remove the ignition switch on a Grant

In order to get to the ignition switch structure on the Lada Granta, you need to remove the steering column cover. This can be done using a Phillips screwdriver.

After this, using a chisel and a hammer, we tear off the lock fastening bolts, as is clearly demonstrated in the picture below.

When the caps are already loose enough, you can unscrew them using long-nose pliers.

When all the bolts are unscrewed, hold the lock and remove the clamp securing it to the shaft.

And the lock on the back side.

Now you need to disconnect the two plugs with the power wires from the lock, as is clearly shown in the photo.

Video

What is a contact group and how does it work?

Repair of contact group on Daewoo Nexia.

Contact group of the ignition switch Volkswagen B5 (Volkswagnen B5).

Replacing the contact group on a VAZ car.

Daewoo Nexia will not start. The reason is in the contact group.

How to replace the ignition switch of a VAZ 2109.

On all Nexias, without exception, sooner or later a problem appears - burning of the contacts of the ignition switch contact group. The contact group is installed in the ignition switch, and by turning the key you close the contacts responsible for the operation of the engine and the Nexia as a whole. The problem is that the Daewoo engineers did not seem to have calculated it and passed all the currents through a plastic box with thin contacts. As a result, the contacts burn out and the body melts.

Installing the ignition switch

It is necessary to tighten until the head of the bolt comes off when a certain torque is reached.

After which you can install the casing in place, having previously connected all the power wires.

Training procedure

Carrying out the training procedure leads to the following consequences:

the engine control controller activates the anti-theft function if it has not been activated;
the system changes its password to a new one chosen at random;
a new system password is written into the training key;
all remote controls that were previously trained are erased from memory;
The codes of those remote control units that were trained in this training procedure are stored in memory.

The training procedure is applied in the following cases:

activating the anti-theft function in the controller (for example, in a new car or replacing a faulty controller);
erasing old and training new remote controls if lost;
changing the system password if the owner admits that his system password may have been read (for example, when selling a car from one owner to another)
remote control training when replacing a faulty immobilizer with a new one.

Only new remote control units or those that were previously trained using the training key used in this training procedure can be trained. It is impossible to learn a remote control key from another car into your car.

Please note: Due to the importance of the training key, it is not recommended to use it for everyday use and should be kept in a safe place. Before starting the training procedure, fill the car with at least 10 liters of gasoline, so as not to get confused by squeaks

Possible malfunctions of the protection system and ways to eliminate them

If the ignition switch fails on a VAZ 2170, many motorists may confuse this problem with a breakdown of the ignition coil or, for example, the ignition module. But as for the 3Z specifically, its repair or replacement is carried out only if the key is not moved to position I or the steering wheel is not blocked after the key is removed. The key must always return to position I after starting the engine. If this does not happen, then you can either repair or replace the ignition switch.