Check light on Toyota Rav 4 and check 4wd system Reasons

Market leader status allows! Here's another article about the Toyota RAV4. Moreover, the topic is important: a 2-liter version, a “cunning” CVT variator, “smart” all-wheel drive. How does all this work in real conditions? What are the pros/cons? Is a 2-liter engine enough? And if you pay extra, then for what: for a hybrid or for all-wheel drive? This article will not be a traditional review, but there will be many technical nuances and important details, which we will analyze in the format of the TOP 5 questions and answers. Which, I hope, will help someone decide on the choice of the future version of the Toyota RAV4.

ELECTRONIC STABILITY SYSTEM (ESP) (if equipped)

• When accelerating hard or driving on slippery road surfaces, the vehicle's wheels may begin to slip and slide laterally. The ESP electronic dynamic stabilization system is capable of detecting a loss of vehicle directional stability using sensor signals and helping the driver keep the car on the desired trajectory. The dynamic stabilization system controls the wheel brakes and, if necessary, reduces the power developed by the vehicle's engine.

– When the ESP system is turned on, the indicator lamp for deteriorating road traction, located on the dashboard, begins to flash.

– When only the traction control system TCS, which is part of the ESP system, is activated, the indicator lamp for poor traction of the road surface also begins to flash.

– If the indicator lamp for poor grip of the road surface flashes, this means that the vehicle is moving on a slippery road.

ESP system failure warning

If the normal functioning of the ESP system is disrupted, the indicator lamp for deterioration of road adhesion properties and the indicator for turning off the dynamic stabilization system (ESP OFF), located on the dashboard, light up. As long as these lamps are on, the vehicle's dynamic stabilization system will not function.

• Vehicle Dynamic Stability Program (ESP) uses an Active Brake Limited Slip (ABLS) system to improve the vehicle's traction properties. ABLS operates similarly to a limited-slip differential and is activated when one of the drive wheels encounters a low-traction surface and begins to slip. The ABLS system, by braking the slipping wheel, provides a corresponding increase in torque on the other wheel of the axle, which has better traction with the supporting surface.

• When the ESP system is turned off, none of the functions of this system will operate, and the TCS traction control system will not work. However, the Active Wheel Braking System (ABLS) and the Anti-Lock Braking System (ABS) will continue to function even when the ESP system is turned off. When the ABLS system is activated, the warning lamp will flash and you may hear a characteristic noise and/or feel a pulsating force on the wheel. brake pedal. This is normal and does not indicate a system malfunction.

• Vehicle Dynamic Stability also uses FBS (Fade Brake Support) (if equipped), which provides shorter braking distances when the brakes are hot. In addition, the FBS system increases driving safety on long descents when the driver applies frequent braking as necessary.

• During the operation of the dynamic stabilization system (ESP), you may feel a pulsation of force on the brake pedal and hear a characteristic noise or feel vibration from under the hood of the car. This is normal and confirms that the ESP system is functioning properly.

• The diagnostic program built into the ESP control unit checks the serviceability of the system every time the engine is started and the vehicle is driven at low speed in forward or reverse gear. During self-diagnosis of malfunctions, you may hear a characteristic noise and/or feel a pulsation of force on the brake pedal. This is normal and does not indicate a system malfunction.

• In some cases it may be useful to turn off the ESP system to allow the wheels to spin:

– When driving in deep snow or wet ground;

– When the car rocks back and forth when stuck in the snow;

– When driving with snow chains installed.

1. ESP SWITCH (if equipped)

How can I reset the error?

After diagnostics, you need to erase the fault code. This can be done by following the following step-by-step algorithm:

You can also reset error codes using technical means. For example, a laptop can help with this. This will require a special program designed for these purposes.

This article describes the most common error codes. If there is an error that is not in the material, we recommend contacting the service.

Hmmm, maybe a 2-liter car then, but with front-wheel drive?

Maybe, and even “very much maybe.” The fact is that a car with front-wheel drive is 80 kg lighter with other comparable configurations. And if we add a reduction in transmission losses, we get improved dynamics. According to the passport data, the 2-liter crossover with front-wheel drive wins over the version with all-wheel drive by 0.3 seconds. But it feels like all three seconds! There is a slight starting jerk, and there is an easier acceleration on the move: it’s simply more pleasant to control traction and acceleration here. Although, in principle, this was expected given the lightweight nature of the car; however, I did not think that the difference would be so noticeable. But what was unexpected, but pleasantly surprising, was the suspension: still comfortable and quiet, but more energy-intensive and collected. It seemed much closer to the hybrid 2.5-liter RAV4 than to the all-wheel drive 2-liter car. Then it turned out that the feelings were correct. After all, for each version of the Toyota RAV4 (as, indeed, for many other cars) its own suspension settings are selected: i.e. the circuit itself remains unchanged, but the springs/shock absorbers can change (by the way, sometimes different bushings or an anti-roll bar are changed). So, returning to the RAV4: according to Toyota representatives, the 2-liter front-wheel drive car uses shock absorbers that are the same as the shock absorbers of the Hybrid versions, although the springs are different.

And the second thing that pleased me with this car was the list of equipment. This car was presented in the Active configuration, this is the next level after the Live “base”. But this is not the case when “base+”, but the case when “almost maximum speed”. Keep your fingers crossed: a rear view camera with guidance lines, heated seats and even a steering wheel, 2-zone climate control, an 8-inch touchscreen display in the cabin, an instrument panel with a large 7-inch display, 17-inch alloy wheels, lane control, recognition road signs, warning system about a possible accident, etc.

The white Toyota RAV4 crossover also has a naturally aspirated 2-liter engine and a CVT variator, but front-wheel drive and an average Active package: today such a car costs from 835 thousand UAH. or about $30 thousand. The additional payment relative to the “base” Live (version with manual transmission - from 703 thousand UAH or $25 thousand, version with automatic transmission - from 752 thousand UAH or $27 thousand) is fully justified by the package. By the way: a 2-liter car in the Active configuration with all-wheel drive costs from UAH 923 thousand. or $33 thousand, which is almost comparable to the front-wheel drive RAV4 Hybrid - from 933 thousand UAH. or about $33.3 thousand. The main test car was presented in the maximum Premium configuration: a 2-liter car with all-wheel drive and a CVT – from 1.096 million UAH. or $39.1 thousand, 2.5-liter Hybrid with all-wheel drive – from UAH 1.195 million. or $42.7 thousand.

How does AWD work?

A typical All-wheel drive operating scenario is as follows. Imagine that you are driving along a normal road, even with bumps and puddles, but still far from off-road. It is clear that in such conditions all-wheel drive is useless, because it causes increased fuel consumption. Front-wheel drive is quite sufficient - it is both economical and provides good handling.

It's a different story when you pull onto a dirt road, especially if it's recently rained and the dirt has turned to mud. On two driving wheels you can thoroughly “sit down” in some hole or puddle. Therefore, the AWD on-board computer automatically connects the rear wheels, transferring part of the engine power to them. The car becomes all-wheel drive. But here there are some differences from traditional all-wheel drive vehicles.

Traditional all-wheel drive technology, 4WD, typically distributes power equally between the axles and wheels. In the case of AWD, the front axle almost always gets the most power, accounting for 60 to 90 percent of the engine's power and torque. Only a few manufacturers like Audi and Subaru provide the usual equal (50/50) distribution between the axles.

Another difference from 4WD is the absence of low gears and the possibility of differential locks. Many off-road enthusiasts do not like this lack of “adult” options, and their indignation is well founded. After all, a lower gear significantly increases the power supplied to the wheels, and differential locks prevent wheel slipping. Without these functions, attacking serious off-road conditions is quite reckless.

When driving off a paved road in an AWD vehicle, remember that the success of your trip depends mainly not on your driving skills, but on the quality of the on-board computer program. Some manufacturers bring elements of traditional 4WD to All-wheel drive by providing manual control, but this is rare. In general, AWD is perfect for driving on light off-road conditions, but not in remote, deep swamps.

The difference between 4WD and AWD

Generally speaking, AWD provides for automatically activated all-wheel drive, while in 4WD it is either permanent or can be connected and disabled manually. By the way, in auto topics, the not yet fully established terminology is sometimes violated, which confuses the consumer even more. For example, Ford Tempo and Subaru Justy at one time were “promoted” on the market as cars equipped with AWD, although in fact the functioning of the drive axles was adjusted manually. But in world practice there is also such a concept as on “demand four wheel drive,” i.e., a 4-wheel drive that can be connected if necessary. It is unclear from it who controls this system - a person or robotics. One way or another, the culprits for this “vinaigrette” are mainly the irresponsible media, which make blunders when publishing auto reviews, price lists and press releases, as well as Internet copywriters, who willingly or unwillingly distort information in the pursuit of uniqueness.

Part-Time 4WD appeared first and is the simplest and most reliable type of all-wheel drive

Previously, cars were overwhelmingly single-wheel drive, with a rear (less often front) drive pair. Then samples were created with a transfer case (“transfer case”). Through it, the thrust was distributed between the axles in the proportion established by the designers. This is how the first all-terrain vehicles appeared. Later, a number of versions of the all-wheel drive transmission were invented:

• Part-Time 4WD – partial all-wheel drive. Only short-term use of a system of this type is allowed, because on dry hard roads there is increased wear and failure.
• Full-Time 4WD – total non-switchable drive. The torque is continuously distributed between the axles in a ratio that has a constant value. In this drive mode, the car moves over arbitrary terrain, but to achieve truly off-road qualities it is equipped with rigid locking of the center and cross-wheel differentials.
• AWD – all-wheel drive operating in automatic mode. A computer or a viscose clutch determines the moment of wheel slipping independently, additionally connecting a second axle.

Engine does not develop full power Toyota RAV4

Tool:

Parts and consumables:

Notes:

If the engine does not develop full power, check the components and mechanisms in the sequence described below to troubleshoot the problem.

1. The oxygen sensor (lambda probe) may not be functioning properly. Replace it with a new one. Contact the service center for a more thorough check by specialists of the exhaust gas system components to find faults and eliminate them.

2. Remove the ignition distributor and check the shaft play in it, the serviceability of the runner, and the distributor cap. If the play is large or there is significant damage or wear to the housing and parts, replace the distributor.

3. Faulty high-voltage spark plug wires can also cause unstable operation of the ignition system. Therefore, check the wires for cuts, breaks, etc. Replace faulty high-voltage wires.

4. Check the spark plugs for wear or incorrect gaps. How to remove candles is written in the first part of the article here. Then check the gap of each spark plug using a spark plug gap gauge. Replace faulty spark plugs with new ones.

5. The cause may also be a malfunction in the fuel injection system or engine management system. To find the exact problem and fix it, contact a specialist service center.

6. Check if the engine air filter is clogged. Replace it if it is filled with dust.

7. Then look to see if the brakes are stuck. Bleed the brake system.

8. The fluid level in the automatic transmission may not be correct. Add transmission oil to the automatic transmission.

9. Check clutch slippage (“slips”). The release bearing or other clutch part may be faulty.

10. Check the fuel filter for clogs or foreign particles in the fuel system. Replace the clogged filter element.

11. Contact a specialist service center to check the exhaust gas neutralization system to look for a possible malfunction.

12. Then check the compression in the cylinders and compare it with the values ​​​​given in the technical documentation, because uneven or low compression in the cylinder can also cause unstable engine operation. How to check compression in engine cylinders is written here.

The article is missing:

Source:

Pros and cons of AWD

Strengths of the technology:

• relative simplicity and low cost of design;
• fully autonomous control;
• the driver does not require special knowledge and skills;
• high fuel efficiency;
• programs work great on soil, sand, snow;
• the computer can predict problems in movement;
• much higher accuracy and speed of reaction to the situation;
• more gentle loads on the engine and transmission.

Weaknesses of All-wheel drive:

• no downshifts or differential locks;
• the program may make errors and inappropriate actions;
• the driver, as a rule, cannot influence the behavior of AWD in any way;
• the transmission, in most cases, is less reliable compared to 4WD;
• on the highway the car loses all the benefits of all-wheel drive;
• more limited capacity to transport goods;
• lower ground clearance and ground clearance compared to 4WD.

Thus, the choice between cars with 4WD and AWD directly depends on the conditions in which you plan to use the car. If you want an everyday car that you can use occasionally to get out into nature, then AWD is the perfect option. Well, for hunting or fishing trips into the depths of the wild, or for transporting goods along the remains of destroyed roads, only heavy SUVs or pickups with permanent all-wheel drive and a set of off-road options are suitable.

This is interesting: Short test drive of Range Rover Evoque

The CHECK, 4WD, VSC indicators came on in Toyota RAV4 (solved) - 1 answer

Some time later: Yesterday I was driving and suddenly, in a turn, symptoms of a blocked central diff appeared; we don’t have it; it turns out that the rear-wheel drive coupling was rigidly blocked! From which one? The fucking homosexuals from the previous service couldn’t unscrew the filler plug and “dripped” as much as they could and didn’t say anything. I drove it on a dry highway, apparently I overheated the clutch several times, and that’s why it jammed.

What could lead to this? And today I was driving in a straight line and the check light came on: Who can tell me what? I read the blue forum, thought about it, and came to the conclusion that the clutch died, the ECU somehow sensed its inadequate operation and completely cut off the rear-wheel drive connection.

Rav 4 Lights up Check the 4wd System and Check Engine Lights on Rav 4 Check Lights on Check 4wd Check Engine on Rav 4 Check Engine Lights on Check the 4wd System

Decoding error codes on Toyota cars

Technical defects appear sooner or later in cars of all manufacturers, including Japanese ones. The driver can decipher Toyota error codes independently, and it is possible to determine system malfunctions without the use of scanners. If a car enthusiast has never encountered such a problem before, then this article will help you understand all the nuances and perform the work at a professional level.

Options and cost of the RAV4 model for the CU countries, in Russian rubles

So, let's begin to consider the advantages of the compact crossover Toyota RAV4

, based on the opinions of car owners, opinions of auto experts, maintenance and repair specialists.

“TRC OFF” light on Toyota: How to solve the problem with traction control

Car owners often notice that the “TRC On” light is on. This is traction control. What this feature protects against and controls on modern cars, as well as what to do if “TRC Off” lights up, the reader will find in this article.

The traction control system first appeared in 1971 in America on such famous cars as Cadillac and Buick. It began to be used on luxury cars of the German brand Mercedes since 1987. After the 2000s, manufacturers began to include TRC in every car.

What is TRC

Many car owners notice that the “TRC On” light comes on on various Toyota modifications. But not everyone knows what it is.

TRC translated from English means “Traction Control”. Speed ​​sensors monitor wheel speed and the system uses measures to reduce traction. The first modifications of cars reduced traction by reducing engine speed. Modern vehicles reduce speed using a special viscous coupling.

If the “TRC On” lamp is on, this means that the wheel slip and skid control system is turned on. In Toyota, this system monitors and mitigates skidding and slipping. Although it was originally created only as anti-skid.

The TRC system works as follows:

Thus, traction control protects the driver and the car from creating emergency situations on the roads.

Attention! On cars of the Toyota Avensis, Auris and many other brands, there is a button on the dashboard called “ TRC Off ”. It allows you to disable traction control.

How to use the traction control system

Traction control works when sliding slightly and even where you need to drive a difficult section of sandy road off-road. To drive on country roads, manufacturers have placed a button on the dashboard that turns off the traction control.

By clicking on it, the car owner will be able to drive the car along difficult sections of the road where intensive acceleration of the car is needed, and not blocking the wheels. But drivers should be aware that after pressing the button for a while, it automatically turns off and the traction control system comes into action again. Therefore, it will have to be pressed several times if the car crosses long, difficult sections.

But it happens that the VSC and TRC lamp turn on together on the dashboard monitor. This indicates an error in the driver safety monitoring system.

VSC and TRC off errors

If TRC Off and VSC light up together on a Toyota Avensis, this means that there is a problem with either the wheels or the engine or the wiring has broken.

It is necessary to diagnose the sensor information through computer software. If the car owner is an experienced mechanic, then he can do this at home. If the driver does not have experience working with diagnostic equipment or a scanner, then it is recommended to go to a service station.

Attention! Experts and experienced car owners do not recommend clearing VSC and TRC OFF on Toyota Avensis or Auris by removing the terminal from the battery pack. If the problem was not a computer firmware glitch, it will happen again. and a minor malfunction will turn into a major overhaul of the entire machine.

On Toyota Avensis, the TRC Off and VSC lights usually light up as garlands. Check Engine light is added to these These are common mistakes that are discussed by owners of Prado cars, Toyota Progress NC 300, on specialized forums.

The problem appears at different times of the year. The intensive occurrence of the error is due to the cold weather during the winter season, to which cars are not accustomed and the computer may malfunction. But often Toyota's TRC Off lights up when the fault is in the car itself.

Troubleshooting

Type 9 error codes common to all Toyota vehicles are represented by two-digit codes.

The general list of unambiguous codes (type 10) for a Toyota car consists of the following items.

Gasoline internal combustion engines

If the car has an on-board computer or robot, the code will appear on the mileage screen. It will consist of a Latin letter at the beginning, for example P, B, C, and 4 numbers. This is typical for cars such as Toyota Rav 4 Avensis, Corolla, Mark II or Land Cruiser 200, Toyota Prado 120 and others that run on gasoline.

Table for deciphering diagnostic fault codes for gasoline internal combustion engines.

Diesel engines

Many Toyota cars were produced with a diesel engine. The most popular models are the Vitz, Caldina, Avensis (T25), Camry, Camry Grazia, Corolla E150, Auris 2008 sedans, Land Cruiser Prado 120 and Land Cruiser Prado 200 SUVs or the RAV4 crossover.

When writing down codes for diesel cars, you can see the following symbols.

Failure of other diesel engine parts.

Automatic transmission

Cars of the same brand differ not only in the engine, but also in the gearbox. For the same Toyota Corolla 150, Celsior or Vista, automatic transmission failures will differ from mechanical failures.

If there is a malfunction in the transmission, you will see one of the codes.

Such errors are typical for different models, including Toyota Ipsum, Toyota Highlander 2001 and Caldina.

Other combinations

Special equipment and devices are also used for diagnostics. Such devices will show five-digit codes. They can also be recognized using the on-board computer, which is installed in new cars and hybrid models.

Code on the Toyota screen with on-board computer

Toyota Estima, Toyota Prius, third generation Toyota Harrier and others came out in the hybrid version. These models (in addition to other breakdowns) may experience malfunctions of the high-voltage battery system (HVB). Hybrid installation error codes and their interpretations are given in the table.

The most common non-VVB error codes are:

The photo gallery shows errors in the operation of the immobilizer and tires on Toyota cars.

Check Engine light is on (engine error): causes and best solutions to the problem

On the road, situations often arise when the check light is on and the message “ engine power limited ” is displayed. With this signal, the on-board computer responds to a number of breakdowns, which include: At car services, injectors are cleaned on special ultrasonic cleaning stands or completely replaced. You can continue driving with one or two clogged injectors at low speeds.

It will be easier for the driver to determine the essence of the problem if there is a special auto scanner for diagnostics. It can be used to configure and diagnose the on-board computer. Without a scanner, you need to decipher error codes yourself using a table.