4475 Apr 20
Every car part has its own resource, and the ignition switch is no exception. Despite the fact that the Toyota brand is reliable, malfunction of this unit is a frequent occurrence. You should not ignore jams, because this can lead to the key falling out of the hole, and the car can be started with an ordinary screwdriver. This article covers all generations of Corolla AE from 100 to 140.
Why you shouldn't lubricate a jamming lock
There are 2 types of breakdowns of this unit: electrical and mechanical, which will be discussed in the article. For any type of breakdown, this part must be removed from the car to repair it.
Under no circumstances should the wedging lock be lubricated! The fact is that as the lock parts wear out, they produce metal shavings, which become full of them inside. In addition to this, small particles of dirt and dust are brought into the hole. Now imagine what will happen when all this dirt mixes with lubricant and clogs all the grooves. The key will simply stop turning.
Removing the ignition switch from a Corolla
To replace this element on a Corolla, use a chisel, 2 screwdrivers and a hammer. Sequence of work:
- For safety, it is necessary to disconnect the terminal with the “-” sign from the battery.
- The steering column is covered at the top and bottom with two casings secured with screws that need to be unscrewed. For convenience, you can also remove the steering column pad, which is attached in the same way.
- After removing the covers, you need to disconnect all the wire plugs.
- The lock itself is fixed to a metal bracket with 4 bolts. For anti-theft purposes, these bolts are tightened at the factory, and the heads are specially broken off, but they can be unscrewed using a chisel and a hammer. It is necessary to rest the tool against the side so that when you knock on it, the bolt turns counterclockwise.
Toyota Corolla E150 (2010+). Repair and replacement of the ignition switch
If you need to replace the ignition switch, you must first disconnect it and then remove it. In this case, safety regulations must be strictly observed. Before you do anything, you need to prepare a screwdriver and an awl. You can consider how the lock and its parts are obtained and replaced. In such vehicles, the contact group is located at the bottom of the steering column. In case of changing the ignition switch, it is recommended to follow certain steps:
1. Dismantling the lock. First, the battery is disconnected by removing the negative terminal from it. The key is turned to the zero position, with the head of the key parallel to the floor. Next, unscrew the fasteners of the steering column casing. Then the screws securing the lock are unscrewed, while the key remains fixed. The clamp is tightened by inserting an awl into the hole in the bracket. When clamped, the key pulls towards itself. The wires are disconnected and the lock is removed.
2. Replacement of faulty elements. If it is necessary to replace the ignition switch element, it is necessary to separate this part in contact with the retaining ring, then install a new element at the same location.
3. Connecting contacts to the ignition system. When completing repairs or purchasing a new lock, you need to connect the contacts. This is not difficult to do, since there are markings on the terminal block of the lock that allow you to make the connection correctly.
4. Reinstalling the lock. In this case, the lock is recessed into the seat until it clicks. Then the fasteners are tightened and the casing is installed in its place.
After all these steps, you should check the proper operation of the ignition system.
Checking work
To check the correct connection of the repaired or new lock, you must again connect the negative terminal of the battery. Next, insert the ignition key into the lock. Then you should check whether the mechanisms are activated according to the position of the key in the lock.
Possible malfunctions of the ignition switch
The reasons for malfunctions in the ignition switch can be very diverse. Most often, breakdowns are associated with oxidation or melting of contacts, which is usually a consequence of sudden voltage changes. As a rule, this phenomenon is observed when the engine starts, when the temperature of the electrical wire material rises, as a result of which its insulating part burns out.
In this case, when you turn the ignition key in the lock, you will not get any reaction from the system, which automatically means the need to replace the lock contact group. There is no need to touch the lock itself.
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Replacing the larva
Replacing a Corolla AE 100 ignition switch with a new original one is an expensive undertaking. The cost of such work to order: $100. Buying this spare part at a disassembly site is not the best option, because it is unknown how long it will last, even though it costs 2,500 rubles. It may happen that the device breaks down again in a month.
The most reasonable option in the event of a breakdown is a new cylinder or repair of the old one, because this is the part that most often breaks.
In order to pull out the cylinder, you need to turn the key to the ACC position (120 degrees), and then press the stopper with a screwdriver as in the photo.
Using another screwdriver, remove the cover shown by the second red arrow.
Restoring the ignition switch yourself
Mechanical failure
This unit works thanks to special metal plates - pins (also called “levers”), which are spring-loaded from below. They are the ones who identify the key by falling into its grooves. Due to the fact that the pins for the Toyota key are made of soft brass, they quickly wear out due to friction. This is what causes most breakdowns. Repairs are carried out by replacing old plates with new ones. Price per set: 100 rubles. In addition, it is worth paying attention to the springs: they must keep the plates at the same height. If somewhere the pins sag compared to the others, then the springs in them need to be replaced with new ones.
If you don’t want to repair the ignition switch yourself, you can simply take it to a service center or buy a new cylinder with a key.
Electrical fault
If the key turns without jamming, but the car does not react in any way, then in 100 percent of cases it is an electrical issue. The most common cause of this problem is contact oxide. In this case, it is worth cleaning the terminal connections from plaque. If stripping does not produce results, then you should ring each wire. According to the diagram below, the terminals are connected as follows: hold the first contact of the ohmmeter at position “1”, and alternately touch positions 2–7 with the second contact. There must be the same resistance between all terminals, otherwise the wires need to be changed.
Toyota ignition switch repair
Like many other car components, ignition switches are also designed for a specific operating cycle. Or in other words - for a certain number of openings and closings. Having exhausted its resource, the lock stops working.
In this article we will look at why Toyota ignition switches break and how professional repairs should be carried out.
Complaints and signs
After five or more years of operation, the key in the Toyota ignition switch begins to work incorrectly and turns every once in a while. In most cases, we are talking about the Camry and Corolla ignition switch.
Until this moment, he most likely worked with great effort, as if he was grinding in a lock. Although, since turning the key in the lock is most often loaded with a spring, the owner does not notice the difficulty of turning it. After the lock began to bite, God forbid you try to lubricate it with something. If you add thick lubricant, it will finish off the lock and completely stop the code elements.
If you add liquid lubricant, it will most likely corrode all the waste and coke in the lock, which now keep the worn elements in their usual range of operation. And Dirt in the ignition switch after several years of operation is just lumps, believe me.
So, for a heavily jammed lock, there are two possible ways for the situation to develop. In the vast majority of cases, the key stops turning completely in the lock. No amount of dancing or tambourines can revive him.
In some situations, particularly greedy, persistent car owners abuse the key in the lock for years, deliberately not paying attention to jamming and biting. After a few more years of operation, the key begins to fall out and be removed from the ignition switch, including when the car is running. Fatal wear and tear has occurred, both the key and the lock as a whole.
Causes
The Toyota ignition key is made of a hard, wear-resistant alloy. The code elements of the security mechanism, which set the key code, are made of soft brass.
After several years of operation, the key “eats” the working edges of the frames, along which it rubs when positioned in the well. Code elements are deformed, that is, they change in shape and size. The key also gets some wear and tear.
And after some time, it turns out that when setting the key, the heavily worn code frames do not go into the cylinder body to the required depth. By interfering with rotation and rubbing against the wall of the case, they create parasitic pressure and further destroy the shape of the key and lock.
Adequate repair
In order to repair a lock due to severe wear of the code elements, as you probably already guessed, the code elements need to be replaced. Replaces code elements in a workshop on a completely removed lock.
Please note that our company’s specialists do not provide advice on the restoration and revitalization of self-disassembled locks at any cost, under any conditions.
We emphasize that, depending on the degree of wear, often, after replacing the code elements, the key must be restored. A heavily worn key after repairing the lock will again “kill” the code frames in a short time.
Do-it-yourself pseudo-repair
On the vastness of the Internet, you can find options for independently solving such situations. So that you don’t have to run around and search, I’ll list them here.
It is possible to repair the ignition switch cheaply - to do this, you need to throw out those code elements that strongly protrude from the body of the larva. And those that do not look out much can be sharpened with a needle file or file.
The procedure is reminiscent of removing a finger after it is broken. But, nevertheless, for those who are careless with things, for those who save every ruble on a car worth several thousand rubles, this option exists.
True, the secrecy of the lock is reduced significantly, and it is possible that the lock will eventually be turned with a screwdriver - this has happened. You also need to understand that the unfinished code elements will wear out again after a while and will again require either “refinishing” or removal from the lock.
How to order repairs from us
Those who treat such expensive things as a car responsibly. For those who understand that each specialist should be engaged in his specialty and business, and not meddle with timid attempts and collective farm methods in an unfamiliar area. We invite you to come to us for ignition switch repairs on all Toyota vehicles.
The lock repair is carried out in the workshop on a removed sample. You must bring with you, including all the keys you have. Repair time is several hours. Price – 2500 rubles.
We also work with other regions: we accept and send locks by courier services. Cash and non-cash forms of payment are possible.
