Pinout of the ignition switch for a VAZ 2114 » Drive

Sometimes during repairs or replacements you have to disconnect the ignition switch from the on-board network and then reconnect it. This seemingly simple operation is fraught with many features, without knowing which you can make serious mistakes. Today we will look at what the VAZ 2114 ignition switch circuit looks like, how to connect this device according to it, and also what important points should be taken into account.

Ignition switch VAZ 2114

Connection diagram of the ignition switch to the electrical wiring of a VAZ-2114 car

In the technical documentation for the VAZ-2114 there is a separate section that specifically describes the design of the vehicle’s electrical equipment. So, all the elements are described in full. But, in this particular case, the issue of independently connecting the ignition wires will be considered.

So, let's look at the diagram to see how the contact connections of the ignition switch are connected.

Ignition switch pinout diagram

Regardless of the ignition being turned on, the following devices can operate: high beam, interior and instrument panel lighting, hazard lights, brake light, sound signal, as well as exterior lighting.

A separate item worth highlighting is additional equipment: a car radio (of any format), speakers, additional lighting devices are powered directly into the battery or on-board network, and much more.

Ignition switch device

Next, we will consider the switched circuits of various key positions in the ignition switch:

Key position	Live contacts	Switched circuits
0 (Disabled)	30	_
1 (Ignition)	30-15	Ignition system, generator excitation, headlights, turn signal, control devices, windshield and headlight cleaners and washers, heater fan motor, rear window defroster, cigarette lighter
II (Starter)	30-15	See Regulation I
30-50	Starter

Ignition switch pinout

Product selection

There are several options for the ignition switch on the VAZ-2114. Let's look at each one separately:

2110-3704005 or KZ-881 – original catalog numbers of the ignition switch manufactured by AvtoVAZ. The wiring diagram is standard, that is, factory. Installation is quite easy. The average cost is 1000 rubles .

Principle of operation

The lock works as follows. When the key is placed in the hole, its locking mechanism is deactivated. This happens due to the reverse movement of a special rod.

By turning the key to the first position, you will power the “15” and “30” contacts. This will alert (but not enable) the following items:

ignition system;
headlight bulbs;
external light alarm;
electrical equipment of the dashboard;
windshield wipers and washer;
cigarette lighter;
rear window defroster;
generator excitation winding.

If in a VAZ-2114 car the ignition switch is moved to the second position, in addition to the listed equipment, the starter will start. As you can see, a lot depends on the serviceability of the device in question. What are the symptoms of a failed ignition switch? Let's start with the fact that its malfunction can be either mechanical or electrical in nature. In the first case it is:

lock jamming in one of the positions;
inability to unlock the steering shaft;
turning on the ignition with a non-original key or other object.

If the lock has an electrical problem, you may notice the following symptoms:

the warning lights on the instrument panel do not light up or light up and go out periodically;
the starter does not start;
Some or all electrical appliances, the circuit of which is powered through the ignition switch, do not work (cigarette lighter, headlights, washer, wipers, etc.).

conclusions

The pinout or connection diagram of the VAZ-2114 ignition switch wires is quite simple and understandable, so every car enthusiast can carry out repairs or replace a spare part without resorting to the help of car service employees.

Ignition switch VAZ 2114

Repair or change

What to do if a faulty ignition switch is detected? You can, of course, try to restore it. But this is only if you have some experience in this area, the device is relatively new, and you suspect that contact wear is to blame. Otherwise, it is better to replace the lock assembly. Fortunately, it is not that expensive - no more than a thousand rubles, and this procedure does not take much time.

Purpose and principle of operation

The ignition switch is an electrical device responsible for both starting the engine and turning on the power in the on-board network. It has 3 different sector switch positions controlled by the ignition key.

Each of them is responsible for its own separate function, namely:

Position “Off 0” - power is supplied to contacts 30 - all equipment is turned off.
Position “Ignition 1” - power is supplied to contacts 30-15 - current goes to the ignition system, instruments, headlights, windshield wipers, stove, cigarette lighter, glass heater, turn signals.
Position “Starter 2” - power is supplied to contacts 30-15 and 30-50 - all the same circuits are energized as in position “1”, as well as the starter.

It is worth noting that the car has a number of electrical circuits that can be turned on regardless of the position of the key, namely: interior lighting, hazard warning lights, high beams, brake light and horn.

In turn, the pinout of the VAZ 2114 ignition switch looks like this (the legs of the lock connector are indicated):

1 - +12 volts for the key sensor;
2 - to ground (if the driver's door is open);
3 - +12 volts to the starter (aka contact 50);
4 - +12 volts with the ignition on (aka - pin 15);
5 - +12 volts with the key inside the lock;
6 - +12 volts for lock illumination;
7 - +12 volts from the battery (aka - pin 30);
8 - not applicable.

The VAZ 2114 ignition circuit, according to which the lock is connected to the on-board network in accordance with the pinout presented above, looks like this:

Basic malfunctions of the ignition switch and their elimination

The most common reasons why a car owner has to replace the ignition switch include:

loss of a key (and lack of a spare one);
mechanical damage (including a piece of key getting stuck in the lock);
burning of the lock contact group.

If the first two problems can be established without additional diagnostics, then you can find out whether the entire ignition switch is externally working only by carrying out a small check. You will need any multifunction tester (multimeter) for this.

Checking the ignition switch

It is performed as follows:

Set the device to ohmmeter mode.
Remove the column casing.
Disconnect the block with wires from the lock.
Find pins 7 and 4 on the lock connector.
Connect the probes to them, and then turn the key in the lock (setting it to the “Ignition” mode).
Find pins 7 and 3 and connect the probes to them.
Turn the key, setting it to the “Engine Start” mode.

If the ignition switch is fully operational, then in both cases the ohmmeter will show no resistance (otherwise it can be concluded that the lock is faulty).

Recommendations

How to change the ignition switch on a VAZ 2110 with your own hands

Reassembling and lubricating individual parts will not work if the fragments are heavily worn. It is better to remove the cylinder from the core and install a new one. Recommendations for replacing the VAZ 2114 door lock:

Partial repairs or lubrication will only temporarily restore life to the closing mechanism. If problems arise, it is better to replace the entire cylinder.
After installation, it is necessary to periodically lubricate the mechanism. Experienced motorists use silicone substances for this.
The repair procedure is carried out in a well-lit room at a comfortable temperature.
To change the element, you will need a set of screwdrivers, pliers and lubricant.
Sometimes the springs have to be replaced along with the cylinder. They are purchased separately.

The cylinder fragment is sold as a set. The price depends on the manufacturer. If you buy a cheap Chinese version, it will cost about 150 rubles. It is better to give preference to VAZ spare parts. The cost of such a kit is 400-500 rubles.

Replacing the lock

If after diagnostics it turns out that the lock has stopped working normally, it should be replaced with a new, similar one. This is quite simple to do, but before doing this, for greater convenience, it is recommended to remove the steering column casing and switches.

You can do this as follows:

Disconnect the negative terminal from the battery.
Unscrew the 3 fastening screws of the casing halves.
Unscrew the self-tapping screw that connects the housing to the switches.
Unscrew the 2 screws holding the housing to the column.
Pull down the latch holding the column.
Lower the steering wheel down.
Remove the lower casing.
Disconnect the power supply from the alarm system.
Remove the top casing.
Simultaneously press the latches holding the steering column switches.
Remove the switches by disconnecting them from the block with wires.

Preparing to remove the ignition switch

The removal of the lock itself is carried out as follows:

Disconnect the wires suitable for the lock from its connector (remember that the terminals from the battery must remain removed, otherwise there is a risk that the ignition system of the VAZ 2114 injector 8 valves will receive additional damage as a result of a short circuit).
Using a hammer and chisel, loosen and slightly turn (preferably several turns) the anti-theft shear bolts.
Unscrew the bolts using pliers.
Remove the bracket from the steering column.
Remove the ignition switch.

Removing the ignition switch

Installing a new lock is carried out in exactly the same way, but in the reverse order. In this case, standard 20 mm fastening bolts with M6 thread can be used as bolts.

It is worth noting that the use of “ordinary” bolts can play into the hands of car thieves, because unscrewing them is much easier than special fasteners. That is why it is recommended to use tear-off bolts, which can be purchased both online and to order in auto stores.

After the new lock is installed, all that remains is to test it in action, simultaneously testing the performance of the on-board electronics in different key positions.

Possible reasons for failure of the ignition module

Before repairing the main part in the car’s ignition system, you need to understand the nature of the problem. To do this, the consumer must be aware of the signs of a malfunction, as well as the causes of the breakdown.

The main reasons for device failure

Causes of problems:

The ignition system uses spark plugs that do not match the vehicle parameters. They may not have the gap specified by the manufacturer. Also, the spark plugs themselves may not be working or dirty; this can be determined by visual diagnostics. If there are traces of carbon deposits on the devices, they must be removed.
Malfunctions in the operation of the MH can arise as a result of frequent spark checks. At the time of diagnosis, a high load is placed on the device. If it appears frequently, it will lead to equipment failure or incorrect operation.
The ignition module in the VAZ 2114 operates with the high-voltage cables disconnected. This also leads to device failure. The products themselves may be damaged, which affects the functioning of the engine as a whole.
The device operates under severe vibration conditions. Their impact may be due to poor quality fixation of the module in the seat. As a result of vibrations, the factory soldering inside the equipment structure is damaged. This leads to its incorrect operation.
The contact inside the plug with the low-voltage cables is broken.
Initial use of a defective device or module with poor build quality. This factory defect can only be eliminated by replacing the mechanism; repairing the equipment is pointless.
Moisture getting inside the case. This problem is unlikely, but exposure of the device to liquid may cause it to short out and break.

Signs of coil malfunction

The main symptoms of a malfunction in the VAZ 2114 ignition module:

Difficulties arise when trying to start the engine. Starting the car engine may be difficult due to the fact that there is no spark on a spark plug or several.
When idling or parking with the internal combustion engine running, the speed of the power unit floats. Their change is not associated with pressing the gas pedal and other third-party factors. This happens randomly.
There are dips in the power of the car's engine. This is especially felt when driving uphill or sharp acceleration. Problems can also occur when driving on a flat road.
Several cylinders stopped working. Usually these devices operate in pairs, so elements 1-4 or 2-3 could fail. Non-working cylinders may be indicated by “triple movement” of the engine.
A “Check Engine” warning light appeared on the dashboard.

If the ignition module malfunctions, problems will appear not only in engine operation, but also when starting it.

The “Simple Opinion” channel, using the Lada Priora car as an example, spoke in detail about the symptoms that appear in the operation of the ignition modules.

This is interesting: Replacing the VAZ-2112 fuel filter 16 valves - photo and video

In what cases is replacement required?

There are several situations when replacement of the seal is necessary:

malfunction of the unit itself;
loss of keys;
mechanical damage to the protection during theft;
contact group malfunction.

3Z device diagram

A unit malfunction can be detected when the engine starts. When the starter does not spin, the solenoid relay does not click, and electrical equipment does not work. Failures can be mechanical or electrical.

How to determine the malfunction?

A faulty unit can be detected either by visual inspection or by diagnostics.

The visual method is to check the behavior of the machine at different key positions. First, the key is set to the right position - “ignition”. If the unit is working properly, then all electrical equipment works. If there are any problems with the electrical system, either all or part of the electrical equipment does not work.

Turning the key in the lock

In the second position of the key, the starter should start. If it does not spin and you cannot hear the click of the retractor relay under the hood, then it is possible that either the starter or the starter is faulty. More specific information can be obtained using diagnostics. This is done with a multimeter set to ohmmeter mode. To carry out diagnostics, you need to remove the steering column cover.

Next you need to do the following:

Disconnect power from the 3Z.
Next, find pins 4 and 7 coming from the node. They correspond to pins “30” and “15”, and connect the multimeter terminals to them.
Then the key in the 3Z turns to the first position. If the unit is working properly, the resistance should be zero.
Then the operation of the unit is checked when the key is turned to position II. Likewise, the multimeter should show zero resistance if the circuit breaker is working properly.

Once you are convinced that the protection device is faulty, it must be replaced (the author of the video is Region 4253).

Characteristics Features

For the “fourteen” model range, VAZ designers chose the right-hand location of the lock. This option distinguishes the model range from the first “classic” cars of the plant. In this case, the switching zone remains under the steering column. The working part is hidden by plastic decor, so only the end of the cylinder is accessible to the driver.

This unit consists of several components. The main ones are the following components:

durable metal case;
unique locking mechanism;
locking block;
electrical part in the form of a contact group.

The presence of a steel case is designed to protect against unauthorized access to internal components. The locking mechanism borrows its characteristics from a conventional door lock with a “secret”.

Thanks to the built-in locking mechanism, it is possible to fix the steering wheel, preventing it from turning, with a free “secret”. The contact group is connected from the back and is responsible for the timely connection of contacts at a certain position of the key in the keyhole.

Instructions for replacing the ZZ

Replacing the ignition switch on a VAZ 2114 injector takes place in stages. At each stage certain actions are performed.

Preparation

First of all, you should prepare for the replacement procedure by preparing an electrical circuit diagram and the necessary materials and tools:

new node;
4 assembly mounting screws;
chisel;
a set of keys;
Phillips screwdriver;
hammer;
pliers.

The VAZ 2114 ignition switch should be purchased assembled.

For ease of operation, remove the cover from the steering column and switches.

Dismantling the casing is carried out step by step:

First of all, the car is de-energized by disconnecting the negative terminal from the battery.
Use a Phillips screwdriver to unscrew the screws securing the casing.
Then the self-tapping screw is unscrewed, with which the housing is secured.
Now you need to remove the screws holding the lower part of the housing to the steering column.
At the next stage, the lever is lowered down, with the help of which the steering column is fixed at the angle, and the steering wheel.
Next, the lower casing is dismantled.
After disconnecting the power supply, you can remove the upper part of the casing.
To remove the steering column switches, press the locking elements and remove the elements from their standard places.
The switches should also be disconnected from the power supply.

Removing a faulty device

Having opened access to the protection zone, you can dismantle it. The difficulty of dismantling is that there are no heads on the 4 bolts that secure the ignition switch to the steering column on the VAZ 2114. The absence of heads prevents criminals from stealing a car without a key.

Dismantling with hammer and chisel

Dismantling of the protection zone is carried out as follows:

you need to loosen the bolts using a hammer and chisel;
then the loosened bolts are removed with pliers;
then the bracket is removed from the steering column;
the power supply is turned off;
Now you can dismantle the unit.

The node connection diagram is simple. If it is purchased assembled, then it is not difficult to understand the diagram in order to connect the wires correctly.

Installing a new lock

The procedure for installing the ignition switch on a VAZ consists of the following steps:

first you need to install the key in the new unit in position “I”, then the latch, thanks to which the steering wheel is locked, will hide;
then the protection is mounted and the actions are performed in the reverse order of removal;
After tightening the 4 bolts, you need to tighten them a little.

After installing the new unit, you need to check the steering lock. To do this, remove the key from the lock and turn the steering wheel to a small angle. If the steering wheel does not lock, you must install the unit correctly: the latch must fit into the groove located on the steering column. If the locking function works, all you have to do is tighten all the breakaway bolts until they stop. You need to tighten them until the heads are broken.

When replacing the VAZ ignition switch is completed, you need to connect the power and check the functionality of the device by starting the engine.

Installing a new part

The removal and assembly algorithm is the same, although the instructions for installing the cylinder mechanism have its own nuances. Before inserting a new cylinder into the core, the part is lubricated with a silicone substance and only then inserted into the handle. Further algorithm of actions:

The return spring is inserted next to the cylinder.
The functionality of the key is checked. It should turn easily in all positions.
A pin is installed on the tip of the rotary rod. Connection is being made.
The inner and outer panels are screwed on, the handles are fixed, and the plug is returned to its place.
The main three screws are tightened from the inside.

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