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How to unscrew the ignition switch on a Priora. Life hack: Priora car ignition switch - faults, replacement, price. How to remove the ignition switch on a Priora

The ignition system of any car includes various elements and mechanisms to ensure the most optimal start of the power unit. One of the main components is the Priora ignition switch, with which the driver can start the engine. We will tell you more about the malfunctions, as well as the replacement of the seal below.

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Features of the ignition switch on Priora

The Priora ignition switch is a unit equipped with an anti-theft device and a restart blocker for the starter mechanism. As can be seen from the diagram, the voltage from the battery is supplied to output 30 of the VAZ ignition device. To ensure protection of the unit circuit, relay K4 is installed in the fuse block. When the ignition key on a Priora is set to position 0, the locking rod of the anti-theft mechanism extends. The key can only be removed in this position.

Different circuits are activated in different key positions:

I. In accordance with the connection diagram of the connection wires, in this position the operation of the motor control system, the excitation circuit of the generator unit, optics, is activated. The instrument panel, windshield cleaning system, and power windows are also included, if included in the package.
II. In this position, all components activated in position I work, as well as the starter device (video author: Alexey Wolf).

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.

Repair instructions

The location of the 3Z is known to everyone - this unit is located directly under the steering wheel. To properly replace or repair a device, you must follow the instructions:

First, disconnect the battery and remove the plastic steering column cover, which is secured with bolts.
Next, press out the fastening and disconnect the connector with the 33 wiring from the control panel wiring block. When unplugging, be careful not to damage the plug.
Having done this, you will also need to disconnect the plug with the 3Z wires from the connector with the wiring of the immobilizer control system. Using a hammer and chisel or a drill, you need to remove the four breakaway screws and remove the assembly from the steering column. You can't just unscrew these bolts. VAZ engineers decided to use this method of installing the protection in order to protect car owners from possible thefts. This method of fastening, as you can guess, makes it very difficult to dismantle the protection, so at this stage you will have to tinker. In any case, the bolts can be dismantled or drilled out, but instead you will have to purchase new ones in advance.
After completing these steps, you can bend the connector mount with wiring from the 3Z. The terminals with wires are removed from this connector. Next, you need to compress the latches again and dismantle the plastic cover of the device itself. If you plan to simply change the node, then this can be done at this stage. We suggest that you familiarize yourself with more detailed information on repairs - it is quite possible that simple steps will restore the unit’s functionality and save money.
So, if you decide to repair the mechanism, then at this stage you need to press out two more plastic clips and remove the contact group from the cover.
Next, it is necessary to carry out a thorough visual diagnosis of the contacts. If you notice that the contacts have oxidized or burnt, you can restore their functionality by cleaning them using fine-grained sandpaper. Get rid of oxidation and plaque, but do not go too hard so that the contacts do not wear off. If the damage to the contacts is too severe, then cleaning will not solve the problem - you will only need to change either the contactor itself or only the contact group.
If everything worked out with the contacts, then you can assemble and install the protection. During assembly, pay attention to the position of the terminals with the wiring in the connector; under no circumstances should they be mixed up.
After completing these steps, install the locking device back into place, while pre-sinking the locking rod of the anti-theft unit. To do this correctly, install the key in the 3Z and turn it to any position, the main thing is that it is not in the “0” position. If the key is replaced, then the transponders must also be changed - these are special electronic code components on the head of the key.
If you do not do this, then you will also have to carry out the training procedure, as well as change the lock cylinder on the trunk and doors, and this is a rather labor-intensive process. Otherwise, you will have to use the old key to open the doors and trunk and the new one to start the engine. Agree, this is completely inconvenient, but this is only relevant for those car owners who have changed their license plate.

Video “Detailed instructions for replacing the seal”

Visual instructions on how to replace a unit at home are given in the video below (author - channel In Sandro's Garage).

The ignition switch on a Lada Priora car starts the engine. In order for it to start, the machine needs to be given a command. The price of a part for a Priora car is from 1,800 rubles. Replacing the ignition switch is a simple procedure that a beginner can handle.

The driver, turning the key in the lock with the immobilizer in several different positions, gives the command to turn on the ignition or start the engine. Only after this everything starts to work: the starter turns, the crankshaft begins to move, and finally the spark plugs give a spark for the first portion of the air-fuel mixture. But the operation of all these parts may not take place due to a malfunction of the ignition switch on the Priora.

If the car does not start, and you are sure that the components are working properly and the battery is charged, you will have to remove it in any case to inspect and identify the fault. Repairs can be done by anyone; it’s enough to understand all the steps in detail. If it does not help, then the ignition switch needs to be replaced.

How to change and remove it on a Lada Priora car and how many actions need to be performed, you will learn from the article.

Once the ignition switch is turned, the car remains in the ignition even when you remove the key. Unfortunately, Priora is not deprived of this; as the lock wears out, this happens.

How long it will work depends on how you use it. If you use force once, you can break the ignition switch.

Standard ignition switch - article number, price, how it works, device

The module on Priora does not work directly with the components that initiate the engine start. So that it works properlyyou need to wait a few seconds before starting until the required pressure is created. On the Priora, only wires are connected to it - the paths along which messages pass from the ignition switch to the electronic control unit.

The ECU of the Priora car just receives data about the position of the key and can crank the starter if this operation is “not blocked”.
Due to a breakdown, it can only turn on the ignition, leaving the battery to work.

After the ECU key has turned, it gives commands to several parts at once. When you turn on the second position, let the fuel pump run for 5 seconds so that it pumps fuel from the tank closer to the engine.

When the starting process itself begins, the starter rotates - the force it creates goes to the crankshaft;

the ignition system element converts the low voltage current coming from the battery into a high one so that the spark plugs are “charged” and give a spark at the right moment;

The injector creates the first batch of air-fuel mixture to put it into the chamber, where everything is ready for it - the pistons “move”, the spark plugs spark.

In the module itself, everything is simple - there is a cylinder with a return spring inside, between the coils there is a locking ball that does not allow it to curl up more than necessary, and a locking rod holds the structure in place. Finally, as a complication of the entire system, there is an “immobilizer” - an anti-theft system that you can install yourself. It just takes a long time to set it up.

A regular kit with a master key and several door cylinders (with an immobilizer) costs from 1,800 - 2,000 rubles, catalog number - 2170-3704005.
A set without a master key (without an immobilizer) can be purchased for 1,200 – 1,400 rubles, article number -2170-3704006.

Diagram and pinout of the ignition switch on Priora

The diagram looks like this:

Using the diagram, you can track the presence of an immobilizer, as well as a blocker for excessive cranking of the starter. It starts from the battery - the pinout transmits voltage from it to point 30. Here the connection to K4 is a fuse relay. The contact group of the ignition switch of a Priora car will only work if the locking rod is in place and holds the key.

There are two positions in the diagram – I (ignition) and II (engine start). Replace the ignition switch of the Lada Priora in accordance with this diagram.

Basic faults

Usually the module is “sinned” when the battery is dead - nothing will turn on, even the ECU will not receive a signal. You can solve everything by charging the battery or installing a new one. But if you are sure that the key in the ignition switch has turned, but there is no “effect”, then the problem is in the module.

Firstly, one of the dangerous problems is a faulty locking rod. As was said, it does not allow you to remove the key when it is in position I or II. If you accidentally notice that the key falls out, try to replace the block as soon as possible. It happens that replacement is taken due to an immobilizer error. This can only be done as a last resort, having accurately checked all possible “escape routes”, because reconfiguring the ECU will take a lot of time.
Secondly, the wiring connected to the unit may become damaged, and it will become “cut off” from the Priora’s electronic control unit. It is necessary to ring all sections of the wiring and change it. In the same group of problems is the fuse relay. If the fuse is blown, the engine will not start.
Thirdly, the spring may become deformed or break. This manifests itself in the fact that after cranking the starter and starting the engine, the key does not return to position I.

Removing and installing (replacing) the ignition switch on a Priora

Before removing and replacing the module, have a few tools ready:

chisel;
hammer;
pliers;
key "10";
Phillips screwdriver.

Replacing the Priora ignition switch is carried out according to the following algorithm:

Put the car on the handbrake, remove the negative from the battery.
Remove the steering column covers - to do this, insert a screwdriver into the small technical holes and unscrew the bolts.
In front of you will be a steering shaft, to which the ignition module is attached with four bolts. They are twisted very tightly - so that potential hijackers would have to waste time removing the module; to do this, they would have to tear off all the fasteners. Place the chisel under the bolt head and tap the chisel with a hammer until the bolt head begins to rise.
By lifting the threaded fasteners, you can unscrew them - but for convenience, it is better to do this not with your hand, but with prepared narrow pliers - there is a lot of space for standard ones.
As you unscrew each bolt, try to “catch” the falling module.
All that holds it is a block of wires. Disconnect it, then install a new ignition module for the Priora car instead of the old one. Tighten the fasteners just as tightly, but try not to tear them off when tightening.

Lock lighting

Illumination of the ignition switch in a Priora car is a convenient modification in the dark. There are ways to tune anything inside your Priora. One of the most practical ways is to help yourself find the ignition switch by highlighting it. But getting a flashlight or phone out takes a long time and is impractical. Instead, you can put a backlight on this part, which will also be aesthetically pleasing to the car owner.

Such an upgrade can be purchased on Chinese websites - preferably only for Priora. To connect, climb under the steering casing, place the LED strip, and the wire soldered to it needs to be “powered.” When connected to contacts No. 8 or No. 9, when the dimensions are turned on, the backlight turns on.

Button instead of ignition switch

As a replacement, the Lada Granta and many foreign car models have a START-STOP button.
We can say that the start button is a matter of driver convenience, but if you want to make your car unique, you can use different options:

removing the standard module - the steering wheel will not be blocked;
The standard module remains, but the steering wheel lock does not work;
The standard module remains in place, the steering wheel lock works.

You can supply a pre-formed kit, or assemble it yourself - it will be several times cheaper, but not faster.

Price

The cost of the set will be from 1,300 to 1,800 rubles, individual parts in total from 300 to 500 rubles.

How to put

To place a button instead of a module, perform the following steps:

Remove the negative from the battery.
Remove the steering casing and the plastic panel to the right of the pedal assembly.
In accordance with the instructions that came with the start button, connect the wires to the block.
Connect the green cable from the central unit to the brake pedal switch connector.
The wire from the button should be connected to the three-pin connector of the central unit.
If you need to disable the steering lock, cut off only the part of the key that fits into the cylinder and leave it in the lock in the first or second position.
Place the key at the junction of the casing.
Test the Start-Stop button with a few presses.

The ignition switch is an important element of the car. Without it, the car will not start or drive. If such a part is broken, then it needs to be replaced. A new ignition switch for a Priora in Russia can be purchased for 700-1500 rubles.

What is this?

The ignition switch is a device that transfers energy from the battery to the relay and allows the car to start. This part controls the power supply to the electrical systems and prevents the battery from discharging when the machine is not in use.

The ignition switch consists of:

Key.
Contact group.
Larvae.
Locking device.

The ignition switch can be called the main element of the starting system of the car’s power unit. But such a part is subject to various damages.

Most often, parts fail due to:

Late machine maintenance.
Natural wear and tear of individual components of a part.

You can guess that it is time to change the ignition switch by the following signs:

The key is inserted into the hole with difficulty.
The core does not turn.
The steering wheel cannot be unlocked.
The ignition cannot be turned on.
The starter does not function.

If the ignition switch fails, it is better to replace it with a new part. Old parts usually have a short service life.

Pricing factors

The ignition switch for a Priora is not an expensive purchase. But all motorists want to save money as much as possible. It must be remembered that the cheapest parts are usually of low quality. Therefore, you should look for a spare part with the optimal price-quality ratio.

When forming prices, sellers take into account the following pricing factors:

Originality.
Variety.
Quality.
Material of manufacture.
Company manufacturer.
The fame of the implementer.
Place of purchase.
Delivery price (if we are talking about purchasing goods in an online store).

Varieties

Based on the material of manufacture, all ignition switches are classified into:

Brass.
Plastic.

Brass products are of higher quality and are more expensive.

By the number of contacts there are products:

Three-pin.
Four-pin.
Five-pin.
Seven-pin.

The most expensive are seven-pin mechanisms.

Ignition switches are also distinguished:

Specialized(suitable only for a specific car brand).
Universal(suitable for all types and brands of cars).

Depending on the position there are locks:

With three key positions.
With four key positions.

There are details:

With a key.
Keyless.

Depending on additional functions, there are devices:

With steering wheel lock.
No blocking.

The former are more expensive.

Depending on who the manufacturer is, ignition switches on Priora are:

Original.
Unoriginal.

Original spare parts are more expensive.

The new mechanism can be purchased:

In a store that specializes in selling auto parts.
At the car market.
In the online store.

Depending on the brand, the products sold are:

AvtoVAZ.
Recardo.
NOKS.

Approximate prices

Russian Priora car owners can purchase a new ignition switch for their car for about 700-1500 rubles.

Approximate prices depending on the manufacturer are given below:

AvtoVAZ – about 1400 rubles.
Recardo – about 1000 rubles.
NOKS about 750 rubles.

Where and what type of auto parts should you buy?

Owners of Priora cars who need a new ignition switch have questions regarding the choice of the type of car part and the optimal place to purchase. Car mechanics are advised to purchase original products from the AvtoVAZ plant. Such spare parts are sold in specialized stores and on the Internet.

But the original is expensive. Therefore, sometimes you have to look for the best option among non-original parts. Such spare parts are sold in specialized stores and at the car market. They are presented by different companies. It is better not to buy little-known brands: such parts are usually of low quality and fail after a short period of time. You should also be wary of buying Chinese counterfeits. It is better to give preference to proven manufacturers Recardo and NOKS. The products of these companies are sold in stores and are cheaper than parts from the AvtoVAZ plant.

On Lada Priora cars, an ignition switch (lock) type 11180-3704010 is used with an anti-theft locking device, a blocking for re-starting the starter without first turning off the ignition and a communication coil for the ignition key transponder with the car's anti-theft system.

The ignition switch is checked for correct closure of the contacts at different key positions, operation of the anti-theft device and the presence of communication with the car anti-theft system.

The voltage from the battery and generator is supplied to contact “30” (Fig. 1).

Rice. 1. Connection diagram of the ignition switch (with the key inserted)

To unload the contacts of the ignition switch, a “K4” relay is installed in the mounting block.

The locking rod of the anti-theft device extends if you set the key to position “0” (off) and remove it from the lock.

The locking rod is recessed after turning the key from position “0” (off) to position “I” (ignition).

The key can only be removed from the lock in position “0”.

The starter restart locking device must not allow the key to be turned again from position “I” (ignition) to position “II” (starter).

Turning the ignition key to this position should only be possible after returning the key to the “0” (off) position.

REMOVAL, INSTALLATION OF IGNITION SWITCH (LOCK) AND ITS DISASSEMBLY

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

Disconnect the wire from the negative terminal of the battery.

Remove the steering column cover.

3. Press the latch.

4. Disconnect the block with the ignition switch wires from the instrument panel wiring harness.

5. Disconnect the block with the ignition switch wires from the immobilizer control system wiring harness.

6. Using a chisel and hammer, remove or drill out the four breakaway bolts and remove the ignition switch from the steering column.

This is what the ignition switch looks like when removed from the car.

7. Bend back the ignition switch wiring harness block clamp.

8. Remove the terminals with wires from the block.

9. Squeeze the latches.

10. Remove the plastic cover from the lock body.

11. Bend back the two plastic latches.

12. Remove the contact group from the lock cover.

13. Inspect the contacts.

Clean oxidized or burnt contacts with fine-grained sandpaper.

If the contacts are severely damaged, replace the contact group or lock assembly

Assemble the ignition switch in the reverse order of removal, while paying attention to the location of the terminals with wires in the wiring harness block.

Install the ignition switch in the reverse order of removal, having first pushed in the locking rod of the anti-theft device.

To do this, insert the key into the lock and turn it from position “0” to any other position.

When replacing the ignition switch, it is necessary to replace the electronic code elements (transponders) in the ignition key heads of the new lock with the corresponding code elements of the keys from the ignition switch removed from the vehicle.

There is no need to carry out a training procedure after such a replacement.

Switched circuits at different key positions

Key position	Live contacts	Included Goals
0 – (off)
I – (ignition)	30 – 50	Engine control system, generator excitation, headlights, turn signal, control devices, cleaners and washers, power windows.
II – (starter)	30 – 50 30 – 50	See position I Starter

Lada Priora cars are equipped with an ignition lock (switch) version 11180-3704010 with a built-in anti-theft lock, coil connection with the immobilizer and a function to prevent the starter from restarting without turning off the ignition.

The electrical diagram of the Lada Priora ignition switch given below allows you to more accurately understand the causes of possible malfunctions of the switch and to monitor its performance, first of all, check the reliability of contact closure in all key positions, the ease of closing and opening the anti-theft device, as well as the presence of a stable connection with the standard immobilizer .

The main voltage to the lock is supplied through contact “30” directly from the car’s power supply sources (battery or generator), and the unloading of the contacts most often involved in operation is carried out through the participation of relay K4, located in the mounting block.

Removing the ignition switch (switch) of VAZ 2170 (2171, 2172)

To perform this technological operation, you must have a flat and Phillips screwdriver on hand, as well as a chisel and a hammer.

Removing the ignition switch of a Lada Priora begins with disconnecting the power wire from the negative terminal of the battery, thereby protecting ourselves from possible troubles associated with unintentional short circuits. Next, by unscrewing seven bolts, the protective cover of the steering column is removed, after which access to the ignition switch mount (four bolts with cut-off heads) is opened.

The easiest way to unscrew such screws is to use a hammer and chisel; as a rule, such a tool is needed only to “break” the screws and then they can be easily unscrewed simply by hand. If you don't have a chisel, a drill can help you remove these screws.

At the final stage of dismantling the lock, the immobilizer coil is removed from it and the connecting blocks are disconnected, after which it is easy to pull it out of the mounting socket.

Preventative and repair work

If it is necessary to perform preventive and repair operations, further disassembly of the switch is performed, for which three screws are unscrewed with a Phillips screwdriver and the mounting bracket is disconnected from the lock.

Please note that the removal of the locking device drive is prevented by a special cylinder stop. To successfully carry out this procedure, you do not need to completely remove the cylinder - you just need to pull out the locking ball, which is pressed by the spring. By the way, it is this spring that often causes the lock to jam, and if it fails, it can be replaced with a similar spring from the VAZ 2108 lock of the latest modifications.

To gain access to the contact block, it is necessary to remove the switch body, and this procedure is performed by pressing the side plastic latches. On the terminal block, it is necessary to check the condition of the contacts and then remove all detected damage. If traces of scorch are found, it is removed using fine-grain sandpaper. In the event of severe, irreparable melting of the contacts, the contact group is replaced as an assembly. In this case, you will have to spend some time and solder three wires.

One of the most critical in terms of malfunctions is the terminal block. Its disassembly is also not particularly difficult - you just need to bend the latch and fold back the protective cover. Before pulling the wires out of the block, do not forget to first write down their original location. All wires and terminals are inspected for mechanical damage and oxidation that could lead to malfunctions of the lock.

The lock is assembled in the reverse order. When installing the lock, do not forget to recess the rod of the anti-theft device (otherwise installation will be impossible). To do this, you need to insert the key into the lock cylinder and move it from the neutral position “0” to any other position.

In case of a complete replacement of the lock, you should additionally replace the code elements located in the heads of the new keys with the code elements removed from the key heads of the removed ignition lock. In this case, the immobilizer training procedure will not be required.