Most foreign cars are equipped with onboard computers or ECU. Opel Corsa has not exceeded. The electronic brain of this vehicle is responsible for all systems from starting the engine to the speed of rotation of the wheels. However, whatever perfect design of electronic control units (ECU) - they can still fail.

The situation is not the most pleasant, and in connection with the complexity of the device about independent repair, it does not have to talk (although there are such craftsmen). In today's article we will talk about what faults can happen to the Opel Corsa ECU than they can be caused and how to diagnose them correctly.

ECU Opel Corsa - Major malfunctions and causes of failure

The reasons for the failure of the Opel Corsa ECU can be quite a lot, in any case, nothing good is a car owner foreshadowed, because this device is not subject to repair. Even at maintenance stations, it is simply changed to a new one.

But, be that as it may, it is necessary to understand very detail in what can cause a breakdown. Thanks to these knowledge, you can provide the highest possible protection of the device from such troubles.

According to auto electricians, the ECU is most often due to overvoltage in the electrical network of the machine. The latter, in turn, may arise due to the short circuit of one of the solenoids. However, this is not the only possible reason:

1. ECU breakage Opel Corsa may occur due to any mechanical exposure. It may be a random blow or very strong vibrations that can cause the appearance of microcracks in the board of the ECU and the spike places of the main contacts.
2. Overheating of the block, which most often occurs due to a sharp temperature difference. For example, when you are trying to start a car on a lot of frost, squeezing the maximum of the car's capabilities and all its systems.
3. Corrosion, which can occur due to air moisture drops, as well as due to water from entering the carpets of the car.
4. Moisture getting directly to the control unit itself due to the depressurization of the device.
5. Interference of extraneous into the device of electronic systems, as a result, a violation of their integrity could occur.
6. If you wanted to "searcate" from the car, without stopping the engine.
7. If the terminals were removed from the car battery, without stopping the engine.
8. If terminals were confused while connecting the battery.
9. If the starter was turned on, but the power bus was not connected to it. However, so that neither the fault of the ECU is caused, any repair work can be carried out only after the fulfillment of full professional diagnosis.

In general, the nature of the device malfunction will tell you about faults in other systems. After all, if they are also not eliminated, then the new control unit will braid just like the old one. That is why in the case of brave, the ECU is very important to establish the true cause of the breakdown and immediately eliminate it. But how to determine whether the control unit really came out, and not any other system? It is possible to understand this in a number of the very first signs that can manifest themselves in such a situation:

• The presence of obvious physical damage. For example, blunt contacts or conductors.
• Non-working ignition control signals or gas-pump, idling mechanism and other mechanisms that are under the control of the block.
• Lack of indicators from different system control sensors.
• Lack of communication with the diagnostic device.

To prevent the final breakdowns, it is necessary to conduct regular diagnostics of electronic motor control. In order to save on expensive repair and complete replacement of elements of the electronic control system, the check is carried out at least once a year.

Where is and what opel corsa

The electronic control unit (ECU) Opel Corsa is located behind the upholstery panel on the right side of the car's interior. ECU is the main element of the fuel injection system. The computer constantly receives signals from different sensors and manage the most important systems and engine nodes. In addition, the computer performs the functions of diagnosing systems and engine nodes.

If any malfunction is detected, the ECU turns on the engine device "requires engine maintenance", determines and enters into memory the appropriate code (codes) of the malfunction. This makes it easier to continue to diagnose failures. An IEFI-6 ECU is installed on the car.

If the ECU fails, it is replaced assembly because it does not contain maintainable elements. Parameters and control algorithms are stored in the washed programmable constant memorizing device (SPPU). A variant of the program recorded in the ROM is marked with the number of the ECU, which corresponds to the authorship number of the car.

The ECU is powered by various sensors and switches with a constant voltage of 5 and 12 V. Electrical circuits of the ECU have high resistance, so when connecting the power terminals with a control lamp, the latter does not burn. To accurately measure the supply voltage, a digital voltmeter with high impedance should be used (10 MΩ). The ECU controls the operation of the fuel injector, the idling valve, the compressor clutch, etc. with the help of special electronic devices (4 channel drivers) intended for processing the output control signals of the ECU.

Independent diagnosis of EBU Opel Corsa.

Many drivers believe that only professionals should be engaged in checking the engine. In fact, almost every "brains" is still equipped with a built-in self-diagnostic system. With it, it is not difficult to identify any malfunctions with their own hands, even an inexperienced driver.

The engine control unit is a mini-computer that should perform specialized real-time tasks. The latter can be divided into 3 categories:

1. processing signals coming from sensors;
2. calculation of impacts for managing car systems;
3. adjusting the work of the executive mechanisms.

To start checking the status of the engine control unit, we will need to connect to it. You can do this with a special tester or laptop. A program designed to read the diagnostic data should be installed on the last predetermination. Modern cars are equipped with various models of the ECU.

We will conduct a diagnosis of ECU with your own hands using the free KWP-D program. In addition to the utility, we will need an adapter that supports the KWP2000 protocol. We start diagnostics from connecting an adapter. One of his end is inserted into the port of the ECU, and the second is in the laptop. After that, we turn on the ignition of the car and run the program. A message should appear on the laptop display that the operation for verifying the availability of errors in the work of the ECU has successfully started. After that, we will see the table with the most important parameters of the machine.

You must pay attention to the DTC section in which all errors issued by the engine are located. If there are such, we go to the "codes" section, where we will see the decoding of all the existing failures. If you do not find errors, it means that the engine is in perfect condition.

Do not ignore other sections of the table. Information in them is no less important. So, the UACC parameter is responsible for the state of the battery. Normal indicators for this section are in the range of 14-14.5 V. If the voltage of your battery is less - it is worth carefully checking the electrical chains. Another important parameter - THR, which is responsible for the position of the throttle valve. During normal operation at idle, the throttle position sensor will show 0%. Otherwise, it is worth contacting a specialist.

Another important indicator that interests all drivers is the QT parameter that is responsible for the amount of fuel consumption. At idle in the section there should be numbers 0.6-0.9 l / h. For more accurate diagnostics, you need to check the voltage in the car ignition candle. Checking all these indicators, the drivers often ignore the crankshaft state when rotating, which corresponds to the Lums_w section. If the numbers in it are more than 4 rev / s is a sign of uneven ignition in the cylinders. It is also worth checking high-voltage wires and candles.

Video: Diagnostics ECU Opel Corsa

How to replace Opel Corsa - Step-by-step instructions

In order to replace the ECU on Opel Corsa, you must perform the following procedure:

1. Disconnect the negative battery wire.
2. Open the panel covering the computer.
3. Remove the electronic control unit from the socket and disconnect the connectors.
4. Insert the computer into the socket by attaching the connectors.
5. Install the panel.
6. Connect the battery wire.

When replacing the computer to carry out all dismantling and installation operations in accordance with the instructions shown above.

Video: Repair ECU Opel Corsa

Car ID numbers

Improvement of products is a continuous process of any flow production. At the same time, in the automotive, with the exception of cases of large changes in the design of conveying models from the conveyor, the results of the modification process in the vehicle operating manual are not covered. However, the manufacturer's license plate is drawn up, because of which the information encoded in the identification number of the vehicle acquires special importance when buying the latter. Making an order for the required spare part, try to provide the seller as fully information about your car. Be sure to inform the model name, year of release, as well as the number of the body / chassis and the power unit.

Schilde with a car identification number (VIN) is fixed under the hood on the upper crossbar of the front panel, in addition, Vin knocks out the right of the front passenger seat, - a special cover is provided in the carpet.

Split from Vin on the top cross

Split from Vin next to the front passenger seat

On the company nameplate VIN, it is usually embarrassed in third place, looking from above. Below is the decoding encoded in VIN information.

WOL 0 S B F 08 W 1 000027
1 2 3 4 5 6 7 8 9

1 - Manufacturer Definition: WOL - Adam Opel AG; VSX - Opel-PKW.

Until August 1997, release:
2 ÷ 5 gaps
6 - car type: 71 - Combo (van), 73 - three-door hatchback, 75 - coupe (Tigra), 78, 79 - five-door hatchback

Since September 1997, release:
2 - GM-code of the manufacturer
3 - Type of car: S - Corsa, Combo, Tigra
4 - Model Designation: D - Corsa B, Combo B, A - Tigra A
5 - body equipment
6 - body type: 73 - two-door hatchback
7 - year of release: V - 1997, W - 1998
8 - Manufacturer: 1 - Rüsselheim, 4 - Zagaroz, 6 - Opel Aizenakh.
9 - serial number of the car: for example, 27 - a 1998 release car.

The designation of the engine is under an outlet manifold on the cylinder block. Since 1995, the designation is applied to the tide to install the diesel engine. Engine number and designation OHC 1.2 and 1.4 l They are knocked out on the front side of the engine, near the opening of the level of measurement of the level of motor oil.

Location of the identification number of the power unit OHC 1.2 and 1.4 l

Engine number and designation DOHC 1.4 and 1.6 llocated next to the oil filter on the cylinder block. On engines DOHC 1.0 and 1.2 l The room is knocked down near the oil filter housing on the cylinder block.

Location of the identification number of the power unit DOHC 1.4 and 1.6 l

Below is the decoding encoded in the designation of the engine information.

The article is told about some features of the Compact Hatchback Opel Corsa D, about the most vulnerable places in the car.

Class D compact cars are very convenient for operation in urban conditions - the car is easy to park, it consumes some fuel.

In Europe, small hatchbacks have long been very popular, and in recent times and in Russia more and more often, such cars are found on the roads.

A little from the history of cars Opel Corsa

The history of the German car "Opel Corsa" begins in 1982, the first cars were presented in the body 3-door hatchback and a 2-door sedan.

In 1985, a 5-door hatchback appeared and a 4-door sedan popular at the time, the model range of power units was represented by 1000 and 1300 cm engines 3.

The model was produced until 1993, then the German concern began to produce a new compact car Opel Corsa B.

Explanation: Class B is just a class of car (type compact), for example, Mercedes have cars Class C and E. And the letters a, b, c, d is Opel 1, 2, 3, 4 generations, to simplify them were denoted by letters . Opel Corsa A, B and C are previous generations of the car.

In the second generation of Corsa sedans no longer, the model range was represented by 3-door and 5-door hatchbacks. The new car has acquired more rounded outlines, there have been significant changes in appearance:

• there was a new optics;
• more streamlined bumpers;
• the radiator grille has changed.

Significantly expanded the line of engines - on the updated "Opel Corsa", together with low-fat steel, more powerful motors of 1400 and 1600 cm 3 were used, diesel engines were installed on the machine. 1.5 and 1.7 liters. In the transmission used 5-speed "mechanics" and a 4-speed box-machine.

Opel Corsa C was produced from 2000 to 2006, the model was also represented in the body of the hatchback, in the 3-door and 5-door version. The new body has become more reliable - due to the galvanized, constantly opposed corrosion, the iron itself also became stronger.

A 125-strong 1,8-liter power unit was added to the gasoline engine line, and the 1.5 liter motor was removed from the diesel row.

The Corsa D Compact Hatchback The Fourth Generation debuted in October 2006, the car was created jointly by the concern General Motors and Fiat.

The new "smiling" type of car was made on the GAMMA platform, compared with the previous model CORSA became more in size:

• 160 mm longer;
• 60 mm wider.

Just like the previous two generations, the new Corsa is presented in the 3-door and 5-door hatchback bodies, and the 5-door model is 24 mm wide 3-door.

Colsa D was going to Germany and Spain.

Opel Corsa D 2007

In 2007, the version of Corsa D appeared with a new diesel engine 1600 cm3 (192 liters.).

Restyling Compact hatchback was subjected to 2010:

• new colors appeared in the model range;
• in the line of power units, new engines were added;
• the car received another radiator grille;
• the front bumper has changed.

Engines and associated problems

In the automotive market, the Opel Corsa D is mainly represented with 1000, 1200 and 1400 cm with gasoline engines, with diesel engines there are machines, but they are very rare.

Almost all gasoline engines can leak the front or rear crankshaft gland, the oil is also often flowing through the pressure sensor.

When the leaks are detected through the sensor, the malfunction must be immediately eliminated, otherwise the oil can get on the wiring, and then the repair will cost much more expensive.

You can not allow engine overheating - if the temperature indicator started flashing or lights up red, the motor should be drowning, and the machine is shipped to the tow truck and deal with what happened already in the car service.

Overheating primarily leads to a blocking of the head of the block - the replacement of the GBC costs the car owners expensive.

If the crankcase ventilation system is frozen in the cold, an increased pressure is created in the motor. At the same time squeezes the oil dipstick, and, if it is noted, the oil from the motor can find out. Therefore, as prevention follows 50 thousand km. Mix the ventilation system.

Transmission

The most problem transmissions of Opel Corsa D are robotic.

Switching gear can occur with a crunch or knock, with a rear transmission, turn on, while the machine is twisted or "thinking".

First of all, the clutch fails, it is changed by 80-100 thousand km, but this is subject to gentle operation.

The incorrect work of the box can begin at 30 thousand kilometers.

Often on machines with gearbox Easytronic creates problems of gear gear selector.

With any problems, Izitronik should contact specialized auto repair shops. Unskilled repairs box can be completely "finished", and then you will have to buy a used part on the car chamber, as the new "robot" costs unrealistic money.

The least of all the hassle delivers mechanical gearbox, closer to hundred thousand kilometers may need a clutch replacement. If the box does not "tear," it passes long enough.

The automatic transmission is completely reliable, but that the transmission does not fail to fail a previous time, followed by 50-60 thousand km.

Electrical part

The generator and the starter are problematic details on many "Oplia". Before "ends", the generator begins to whistle.

Of course, the voltage regulator is out of order, and then charging disappears. You can buy a Chinese generator, it is inexpensive, but how long the Chinese item can stop, unknown.

Starters on Opel Corsa are low-power, and fail from frequent engine start, especially quickly they break in the cold.

Also in some cases, cheap Chinese products will help, but it is better not to dreach and acquire an original starter.

The rear janitor's motor may be elementary, and the most characteristic reason for its failure is called the back brush to the glass.

Drivers, before turning on the rear janitor, you must first make sure that everything is in order with the brush.

Suspension

Opel Corsa D suspension - standard for cars of this class:

• front - type MacPherson;
• rear - cross-beam with springs.

It is impossible to say that in the suspension something very often broke, but also too reliable to call it difficult.

As in any other passenger car, in the "Corsa", first of all require the replacement of the stabilizer rack, shock absorbers are not too reliable.

However, here as lucky, with a successful coincidence, shock absorbing racks can take place 90 thousand km.

Almost all "Opels" are characterized by weak rear springs, the springs also break on Corsa D, especially if the trunk is constantly overloaded. In general, the rear suspension is reliable and does not cause large complaints.

Body

Starting from the third generation of Corsa body on compact "Opoles" are galvanized, therefore corrosion they oppose well.

Traditionally, for Opel cars, "Ryzhiki" appear on the edges of the rear wings, in this case, you should remove the rear bumper, clean the defective places, primed and paint.

OPEL CORSA D Body

Small-sized cars in Russia are not massive demand. One of the exceptions is Opel Corsa, who managed to find his buyer. Provided the maintenance of the previous owner, it makes sense to take a car with mileage.

Advantages of the car Opel Corsa

Opel firm makes a bet on a combination of operational properties and low cost. All Corsa series cars were characterized by a good move, reliability, pleasant design. The quality of the auto has survived until the latest modifications B, C and in particular D, where the developers applied the enlarged, flexible SCCS platform in combination with comfortable interior, safety, and handling.

The car was able to break into the top of small car, overcoming negative trends associated with the skeptical attitude of the new owners of Opel from the General Motors concern.

In Russia, she also occupied the top position of the rating until the crisis of 2008 and the jumps of the euro quotations were not aggravated by the sale. Despite the fall, Opel Corsa continues to be in demand, attracting drivers with a wide line of motors, simple control, long-term operation. By 2017, since the release of the first serial car has already passed 10 years, but most cars remain on the go.

Features of the body Opel Corsa

Even in the twentieth century, the body was considered the most vulnerable place of Opel models, breeding stable associations with rust and corrosion. Using plastic, aluminum alloys and galvanized (missing only on the roof), the developers have changed the trend, presenting a car in the face of Corsa, which is practically not subject to corrosion, eliminating situations associated with mechanical damage. In the rest of the scratches, chips, other defects are not rotting for years, even if the paint degradation has large dimensions.

Dangerous zones are weak bottom, closed seams and joints. Here, despite the quality material, the LCP is easily coming off due to the impact, sand, stones, which leads to the need to repaint the rear wings (they suffer from the 3-door versions) arches (especially in 5-door modifications) and the edges of the hood. Since 2008, Opel Cors has stopped set to door moldings, which increased the number of dents and chips.

IMPORTANT! Very often, the owners face the poor state of the seams over the engine, blocking the drain canals of windshield, moisture in the salon. Problems are local in nature and in the absence of an accident, corrosion is excluded.

During operation, part of the hosts, uses cheap Chinese spare parts, refers to the services of unqualified mechanics, trying to save on coloring, which invariably forms rust.

In the basic version, the car is completed with windshield Pilkington, able to withstand a strong mechanical effect. The rear window is much more expensive, and his heating threads quickly appear, demanding expensive repairs.

AFL headlights are distinguished, which at the time of the exit did not have equivalent analogues. Despite the strong light, they are prone to wasting, needing to polish and rehabilitate fixing nodes if the bumper experienced a shock effect. A few years later, the work of the reflector and lenses drives is disturbed, forcing the headlights to resort to the replacement of headlights.

What to pay attention to the inspection of the cabin

The decent side of Opel Corsa D is the salon, combining simplicity and comfort. The chimney radiator is very reliable, seed drawdown and skin seals are observed only after a long years of operation, and the smoothness of the lever casing disappears after 70 thousand km of mileage. The remaining components are securely served without losing aesthetic properties.

Illuminated problems begin in 5-7 years, the substitution complicates the whole structure of lamps and diodes. The climate system is copied with Fiat cars, repeating the advantages and disadvantages in the form of noisy bearings and the need to replace the fan through 150 km of mileage. Successful diagnosis and repair, require the qualifications of the master who can repair the air conditioner leakage caused by a weak seal and vibration. Often comes out of order coupling and compressor, and the condenser is exposed to stones.

The interface of the on-board computer over time loses clarity, representing a blurred image. The output from the situation becomes replacing modules, blocks, or using the CID color version, working without problems.

As a rule, violation of the functions of the salon systems is associated with breakdown of BCM components that play the role of the fuse. A simple replacement will not help, as the block closes many options, including rain indicators and fog lights. Similarly, other Corsa nodes are valid, closely related to the complete set, which is why when changing them, it is necessary to affect the wiring and modules.

Along with the blocks, the main problems of electronics Opel, traditionally lies in radiator resistors, whose coating is prone to burning. Rehabilitation is possible under the condition of working part of the part, and as an alternative, the resistor of the Niva can be used (Chevrolet Niva), saving even stated 1000-2000 rubles. The absence of timely repair causes consequences in the form of burst hoses, barrels, oil drills at the engine.

ATTENTION! The weak property of Opel Corsa is considered an expensive ignition module, which even in the used version costs 4 thousand rubles, and in the original it reaches 10 and even 30 (for turbo engine) thousand rubles.

Common violations in the operation of the Opel Corsa electronics include the ECU components overheating caused by the interface of the internal wires. It leads to the engine failures, eliminating subject to replacement or services of a specialist able to open the block. Candles fail due to pollution, oil drills, attachments of antifreeze in tips.

Brake, steering system and pendant

Regardless of the version of Opel Corsa, the future owners of the car, it is necessary to prepare in advance for the screensions of the pads, and after the run in 150 thousand km to the wear of the antiquities and the fingers of the calipers, especially the rear. Despite the reliable drums of the specified nodes, tracked at each maintenance.

ABS and brake highways do not cause complaints, unlike suspension, which:

ATTENTION! It is a vulnerable vehicle. So version B and C rat was reminded by old VAZ, but in the modification D, the problem was eliminated by increasing the resource of the rear leverblocks and services of new suppliers of stabilization traction.

A noticeable fragility is shown by the hub bearings, noisy before overcoming the turn of 100 thousand kilometers traveled, especially if 16 inches discs are used and the side shocks occurred. The only way to maintain the details, acts careful attitude, in this case they are not terrible even 200 thousand km of run, but when buying from the hands, the verification is obligatory.

The steering has an electric amplifier, and violations in work are associated with its refusal, defects of the anthem who caught the rail. All of them are caused by various reasons from distorted indicators and wires, to the assembly of ABS modules, BCM. The signaling device of the amplifier position is very often breaking, which is difficult to repair and is expensive. Errors are observed with a weak generator, battery, onboard voltage.

In general, despite the dimensions, the car moves well, especially in the presence of high-quality transmission and motor.

Which box choose Opel Corsu

Car owners are represented by the MCPP series F13 + and F17, created on their database machine with robotic Easytronic control and real AF13 automatic transmission, which sometimes go like AISIN 60-40LE, using 1.4 liter versions of the core.

Each transmission has its advantages and cons, so mechanic F13 + and F17 is characterized by rapid wear of the switch block, where the backlays are accumulated very quickly. As an analog Suitable mechanism from the car Daewoo Nexia. The problem is complemented by the oil leakage, whose replacement is made every 40-50 thousand km, otherwise solid fractions, causing defects of differential teeth, accumulate at the bottom of the checkpoint. He is paying close attention when buying, since slipping, traction jerks and the welded suitellite fingers lead to deformation of the structure. The check is performed by locking the front and promotion of the rear wheel, then the engine is muffled and the gearbox is checked.

In a robotic version of Easytronic, the control system and low resource of actuators, which is 50-60 thousand km, is added to the breakdowns, while paying around 50 thousand rubles. There is a lack of a deduction system on a rise, forcing the use of the handbrake.

For comparison, the 4-speed AF13 automatic transmission, demonstrates good indicators and with competent use calmly passes the stated 300 thousand km. Here, potential problems arise with large runs and races, being associated with the wear of the Forward drum, the LTT linings, hydraulics pollution. Competent operation of Opel Corsa guarantees the service life of solenoids and frictional, up to the planned repair of the box through 200-250 thousand km of run. The condition of successful work is an oil renewal, excluding high temperatures, drums, problems with discs. When buying, testing is performed by an endoscope.

Engine options and their features

The Opel Corsa D modification is completed with several engine types, combined with a cast-iron case and a small format. The resource of 3-cylinder versions of 1 liter is 100-120 thousand km, 4-cylinder motors per 1.4 is rigorously and can take place 200 thousand km. The most powerful representative of the line is a 120 liter turbo engine. Forces, the rest are barely reaching 90 liters. Forces, or (if the package provides for the phase rotation mechanism) - 101 l. Forces.

The list allocated:

• Motor Z10XEP per 1.2 liter, which in turn is divided into versions of Euro-4 and Euro-5, complying with the requirements of the designated standard;
• Z12XEL engines (80 l. Forces) and A12XEP (85 l. Forces). Despite the increased indicators of the second version in practice, it turned out to be weaker due to the EU environmental norms;
• I changed each other by the generation of z14xel, a14xel, a14xep, 1,4 liter volume;
• A14nel turbo motor (120 l. Forces) by 1.4 liters, corresponding to Euro-5;
• Variations Z16let, A16LEL from the GM Family 1 line, with a volume of 1.6 liters, which are an improved modification of the A14nel model;
• A diesel 8-valve engine for 1.7 liters, in Russia spread practically did not receive, and in Europe it is considered one of the most effective models.

There were no significant problems for aggregates, the average resource is 200-300 thousand km of mileage. The vulnerability acts fogging due to the susceptible ventilation mechanism of the Carter. Weak seals reduce the thermostat strength (A14net, A14nel with Astra J) is a good analogue, contributing to the temperature regime 85-90 degrees, which is convenient in summer, but in winter it requires extra time for heating. The lid of the expansion tank is changing every 5 years, it is necessary to twist it tightly, but not to extremes. Repair of the entire line of engines is not associated with high expenses.