Knorr bremse es2053 DIY repair

WABCO modulator diagnostic protocol (see diagnostic protocol) is a list of errors and malfunctions.

KNORR-BREMSE modulators for ABS and EBS have part numbers:

HALDEX ABS and EBS modulators have catalog numbers:

EBS Schmitz modulator crane with digital designation (article: ES2053) from the manufacturer KNORR-BREMSE (Germany)

We, as a wholesale supplier of KNORR-BREMSE spare parts for engines, recommend part ID: ES2053, original number ES2053, spare parts from KNORR-BREMSE and an analogue to article ES2053, you can buy or order a Crane modulator EBS Schmitz (Germany) at an optimal price.

To purchase a spare part Crane modulator EBS Schmitz, you should not read the further description of the ES2053KNORR-BREMSE part, designed to search for truck spare parts of the KNORR-BREMSE engine group.

Part number ES2053 in the KNORR-BREMSE wholesale online store is intended for repairing the KNORR-BREMSE motor. Spare part number ES2053 are highly reliable KNORR-BREMSE, belongs to the group of auto parts.

You can use to search the article of the spare part (for example ES2053), its number or another code (KNORR-BREMSEES2053) identifying the spare part Crane modulator EBS Schmitz (Germany).

Buy spare parts KNORR-BREMSE ES2053 at a bargain price in stock or on order.

Note: The retail price will be shown. For registered customers, the price is lower

Note: The retail price will be shown. For registered customers, the price is lower

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Knorr-Bremse is a leading global supplier of braking and drive systems for commercial vehicles, and is a component supplier to all major truck manufacturers around the world.

The IBS-Auto company provides the following services.

• EBS Knorr-Bremse repair (electronic pneumatic braking system)
• ABS Knorr-Bremse repair (anti-lock braking system)
• TEBS Knorr-Bremse repair (electronic system for trailers)

• vendor codeII39782N50
• Brand nameKnorr-bremse
• ModelES2053
• NumberII39782
• ManufacturerKnorr-bremse
• CategoryCCGT modulators
• Products webpage
• Country of OriginGermany
• Voltage, V24
• AdditionallyTEBS 4 (4S / 3M)

- retail price in the BaltKam chain of stores

- price when ordering online for a registered user

- the best online price at a pick-up point at the central warehouse. See here for details.

* depends on the dimensions and weight of the order. In St. Petersburg, the minimum cost for orders up to 10 kg, in Moscow - up to 3 kg.

Spare parts for KAMAZ, VAZ, GAZ, Scania, Volvo, MAN and other manufacturers.
Spare parts for trucks and cars of domestic and foreign production.

Concern Knorr-bremseheadquartered in Munich, it is the number one manufacturer of brake systems for rail vehicles and commercial vehicles worldwide. As a technology leader, Knorr-Bremse has been setting new benchmarks for the development, production, marketing and maintenance of modern braking systems for over 110 years. In 2015, the group had a turnover of 5.8 billion euros and employs more than 24 thousand people worldwide.

Moscow Region, village Yarlykovo, possession "Legat" (driving directions)

Moscow Region, village Yarlykovo, possession of "Legat"

Table of light codes of the state of the KNORR-BREMSE ABS elements

Recommendations for elimination

Sensors
frequency
rotation
wheels

Big air
sensor gap
and toothed rotor

The maximum clearance should not
exceed 1.3 mm. Adjust
air gap by pushing the sensor
before touching the rotor.

No signal
sensor at
braking

Check sensor signal level
(cm. rice. Schematic diagram of connections
ABS f. "KNORR-BREMSE"). Check availability
and the performance of the gear rotor.
Replace sensor and rotor if necessary.

Bad toothed
rotor, came up
service term
ABS

Instability
sensor signal

Check cable and signal strength
sensor when the wheels are rotating (see. rice.
Schematic diagram of ABS connections
f. "KNORR- BREMSE ").
Check the integrity of the rotor.

Short circuit
to "ground" or
battery.
Broken wire.

Check sensor, connection to
unit and sensor, sensor cable for
breakage or short circuit. Eliminate. Replace
sensor in case of damage.

Short circuit
reset coils
per battery

Check connecting cables,
connection to the block and modulator.
Eliminate damage. Without
Replace the modulator for damage.

Short circuit
reset coils
on the ground

Broken power wire
reset coils

Short circuit
retention coils
per battery

Short circuit
retention coils
on the ground

Broken power wire
retention coils

Turn the rotor of the starter lock and the instruments
key first to position "0", and then to
position "I". Check ECU configuration
(cm. System control mode). Replace valve.
Reconfigure or replace
electronic control unit.

Contacts
connectivity
grounding
diagonals

Closing the diagonal
1 per battery

Check modulator connections first
diagonals (front left - rear right).
Check wiring. Eliminate the malfunction.
Replace modulators.

Closing the diagonal
1 to ground

All modulators
meek
on the ground

Check modulator connections.
Check wiring. Eliminate the malfunction.
Replace modulators.

The electronic unit
control defective.
Internal error
electronic unit.

Replace the electronic control unit.

High voltage
in diagonal 1.

The on-board voltage has exceeded 30V.
Check the vehicle voltage relay.
Replace if necessary.
Check ECU. Replace ECU.

Low voltage
in diagonal 1.

The on-board voltage has dropped below 18V.
Check batteries and fuses.
Provide voltage 24 - 28V.
Check ECU. Replace ECU.

Broken wire
diagonals 1.

Check modulator connections
diagonals 1 (front left - rear right)
to the ECU. Check the wiring for an open.
Eliminate the malfunction.

Broken wire on
pin GNDPCV1
or big difference
voltages with GNDECU.

Check the connection to the electronic
block (pins 10/18 and 12/18). Check n
to the cliff.Eliminate the malfunction.

High voltage
on pin U ECU

The on-board voltage has exceeded 30V.
Check the vehicle voltage relay.
Replace if necessary.

Low voltage
on the UECU pin

The on-board voltage has dropped below 18V.
Check batteries and fuses.
Provide voltage 24 - 28V.

Electromagnetic
shut-off valve
subsidiary
brakes

Closing the coil
valve to the battery.
Broken wire.

Check valve power cable for
open circuit or short circuit, check
connection to the ECU. Eliminate the malfunction.
Check valve functionality.
Replace valve.

Closing the coil
on the "ground".

Short circuit or open
lamp wire
or keys.

Check lamp wires and keys
diagnostics for short circuit or breakage.
Eliminate. The key has been pressed for more
16 s. Release the key.

The big difference
between sizes
front and rear tires.

Memory problem
parameters
sensors.

Two or more sensors are faulty.
Check the signal levels of the sensors.
Eliminate malfunctions. If necessary
replace sensors. Erase mistakes from
memory of the electronic unit. Disperse
car up to a speed of more than 20 km / h.

Sensors are mixed up
front axle and
rear axle / axles.

Eliminate the problem by rearranging
contacts in the blocks of the electronic unit.

1. N *: 2 (3) - left (right) front axle wheel speed sensor;
   4 (5) - left (right) wheel speed sensor of the rear axle / axles;
2. К *: 8 (9) - left (right) front axle brake pressure modulator;
   10 (11) - left (right) brake pressure modulator of the rear axle / axles;
3. Ra * - the first part of the code;
4. RB * - the second part of the code

Brand: Knorr-Bremse, Germany (Country of manufacture may vary)

“EBS modulator valve” article ES2053, Knorr-Bremse can be bought in our online store. The price is shown on the right. “Expect. term ”is the term for picking the order. During this time, we will receive the goods to our office from the supplier warehouse. The “Availability” column shows how many pieces this supplying warehouse has. If the availability is not specified, then we will confirm the required quantity after placing the order.

If you only need this product, you can order by clicking the “buy in one click” button. If you need several different items, use the “add to cart” icon. If you are a wholesale buyer and need a large quantity, please write to us by email. Indicate the product code and the required quantity.

Attention! The price is shown without cumulative discount. Find out your discount.

We can send a parcel to any point in Russia by regular mail, CDEK or a transport company. Shipping costs are calculated separately and are not included in the price. You can “estimate” on our shipping cost calculator.

Buy "Crane modulator EBS" can be prepaid. Payment upon receipt (cash on delivery) is possible if the amount of the goods in the order is from 300 rubles. up to 2000 r. Also cash on delivery is possible for goods marked with a special banner. Payment upon receipt by mail will cost about 6% more due to compulsory insurance (4%) and money transfer fees (about 2%). Payment upon receipt at CDEK will cost 3.5% more for the same reasons.

Brand: Knorr-Bremse, Germany (Country of manufacture may vary)

“EBS modulator valve” article ES2053, Knorr-Bremse can be bought in our online store. The price is shown on the right. “Expect. term ”is the term for picking the order. During this time, we will receive the goods to our office from the supplier warehouse. The “Availability” column shows how many pieces this supplying warehouse has. If the availability is not specified, then we will confirm the required quantity after placing the order.

If you only need this product, you can order by clicking the “buy in one click” button. If you need several different items, use the “add to cart” icon. If you are a wholesale buyer and need a large quantity, please write to us by email. Indicate the product code and the required quantity.

Attention! The price is shown without cumulative discount. Find out your discount.

We can send a parcel to any point in Russia by regular mail, CDEK or a transport company. Shipping costs are calculated separately and are not included in the price. You can “estimate” on our shipping cost calculator.

Buy "Crane modulator EBS" can be prepaid. Payment upon receipt (cash on delivery) is possible if the amount of the goods in the order is from 300 rubles. up to 2000 r. Also cash on delivery is possible for goods marked with a special banner. Payment upon receipt by mail will cost about 6% more due to compulsory insurance (4%) and money transfer fees (about 2%). Payment upon receipt at CDEK will cost 3.5% more for the same reasons.

Car enthusiasts are our most important customers.
To help car enthusiasts, we have a spare parts selection service, fast delivery to the door, payment in cash and by credit card, return of goods.

Service station representatives are our most beloved clients.
For service stations, we have special prices, the ability to place an order without prepayment and a huge selection from different suppliers, which allows you to find almost any auto part.

We pay great attention to working with suppliers.
If you are a supplier of auto parts, you have a warehouse in Moscow or the Moscow region, competitive prices, a price list in Excel and you are ready to send it daily with balances and prices, register, we will be happy to consider your offer.

2) Anti-lock braking system manufactured by Knorr-Bremse …………. 5

3) Problems during operation and typical malfunctions ………………. 12

Improving safety and productivity continues to be the main focus of motor vehicle (AT) development. At present, all automobile companies that produce trucks, buses and trailers are following the path of creating various automatic control systems, the functionality of which already now largely exceeds the capabilities of the driver (operator).

In the braking control of domestic cars and trailers, anti-lock braking systems (ABS) are currently widely used, which allow maintaining the stability of the vehicle during braking with a slight increase in braking efficiency.

The purpose of anti-lock braking systems (ABS) is to prevent the vehicle wheels from locking up as a result of the application of excess braking torque to the wheels, mainly on roads with a low coefficient of adhesion. Anti-blocking allows you to maintain lateral force on the wheels even during emergency braking. This increases the driving stability and controllability of the vehicle or road train. At the same time, optimum braking grip of the tires is achieved, resulting in maximum vehicle deceleration and minimum braking distances.

The device and control principle of the four-channel system (4 wheel sensors and 4 control channels (modulator) - hereinafter 4D / 4K4) became popular first in the European truck market, and then began to be used throughout the world.

Electronic ABSs have proven to be extremely reliable in the operation of trucks in various climatic conditions.

In many countries, the mandatory use of anti-lock braking systems is regulated for certain categories of trucks (cars with a GVW of more than 3.5 tons and trailers with a GVW of more than 3.5 tons).

The introduction of these standards has led to a wider use of ABS and, accordingly, to an increase in the number of systems produced. At present, ABS of its own design are produced from the CIS countries in Russia and Belarus. Licensed ABS from KNORR-BREMSE are produced all over the world.

Modern ABS is based on developments in the field of electronics, such as efficient microcomputers and storage systems, and takes into account new diagnostic principles. Three-, four- and six-channel ABS for commercial vehicles have the ability to communicate with the electronic engine management system.As an option, it is possible to use the built-in speed limiter. When driving on dirt roads, it is possible to use special ABS operating modes.

This essay aims to familiarize with the design, reliability, problems in operation, basic malfunctions and principles of operation of the ABS firm KNORR-BREMSE on trucks.

The Knorr-Bremse company was founded in 1905. Today the company has developed into a leading supplier of various braking systems for trucks and railway transport in the world market. The structure of the concern includes factories and subsidiaries located in 25 countries of the world, as well as a developed distribution network covering 60 countries of the world. The concern's turnover is one of the highest in the world, which became possible as a result of the ongoing modernization of production facilities, investment in research and development and the introduction of innovative technologies. A large staff of engineers is constantly working on the development of electronic and pneumatic braking systems. Particular attention is paid to the quality, reliability and safety of the products. All products have quality certificates according to the ISO 9001 system, as well as ISO TS16949, introduced in 2001.

The pride of the company is innovative developments in the field of electronic systems. Knorr-Bremse electronic systems provide the highest level of vehicle control - the system is triggered within milliseconds. The reliability of Knorr-Bremse systems is due to the precise adherence to the manufacturing process and the know-how used. Knorr-Bremse is also the leader in pneumatic disc brakes for trucks, buses and trailers. They provide compatibility with modern electronic control systems such as ABS and EBS and are more efficient than shoe braking systems. Plus, the company produces high-precision ABS sensors for trucks.

The ABS system includes the following main components:

- Impulse rings installed on the brake wheel hubs;

- Electronic control unit;

- Modulators / valves for pressure control in brake chambers;

- Button (switch) for ABS diagnostics

- Harnesses and fasteners.

Figure 1 - Diagram of anti-lock braking system for trucks

The number of sensors, modulators and pulse rings depends on

the configuration of the ABS system installed in the vehicle

The most common is the four-channel 4D / 4K system, which has the principle of MIR / IR regulation for trucks.
The four-channel anti-lock braking system has two two-channel modulators, four wheel sensors and a control unit. Despite the presence of ABS.
This type of ABS belongs to category 1 (with direct control of all wheels). They provide effective braking on roads with a coefficient of adhesion from 0.05 to 0.9, mixed, operate at a speed decrease to 1 m / s and have a minimum air consumption.
ABS is installed serially on trucks, road trains and buses of many automobile manufacturers (including MAZ).
Knorr-Bremse unified two-channel ABS modulator is installed, as a rule, one per axis. The passage sections of the modulator make it possible to connect several brake chambers in parallel to each of its pneumatic outputs. A two-channel modulator is simpler and cheaper than two single-channel ones, since instead of four solenoid valves, only three are used, respectively, the number of power amplifiers in the electronic control unit is reduced. Installation of two-channel modulators on a car is less laborious.

The implementation of seven modes of operation by the modulator makes it possible to carry out on its basis individual and modified individual regulation of two wheels. It should be noted that in any mode of operation of the modulator, voltage is applied to no more than two solenoid valves, thereby ensuring economical power consumption.

Figure 2 - Modulating valve

The signal from each sensor passes through an RFI filter and feeds simultaneously to two processor circuits.

Figure 3 - ABS sensor

After energizing, the ABS continuously performs self-diagnostics of serviceability and informs the driver about its results. The signal lamp lights up when voltage is applied and goes out only after checking the ABS functionality, if no malfunctions are found. First, each processor checks its own health by testing commands, and then they check each other. Sensors, solenoid valves and wire harness are also checked. When a malfunction occurs, the ABS is completely or partially turned off and the warning lamp on the instrument panel comes on. The malfunction code is stored in the control unit memory for a long time and can be requested during repair.

Code output on request is carried out in two ways: by a diagnostic tester when it is connected to the control unit; flashing of the warning lamp, the number of flashes corresponding to the type of malfunction.
When testing the ABS electronics, 900 possible failures were simulated, but the control unit always correctly identified them and carried out the corresponding shutdown of the system.
The sequence of self-diagnostics of the ABS is as follows: first, the control unit is monitored, and then (after the start of movement) the serviceability of the sensors and solenoid valves is checked. The check is carried out during the entire time the vehicle is moving.

Figure 4 - graphs of the ABS workflow when braking on mixed doubles

Figure 5 - Electronic control unit for ABS

A certain disadvantage of Knorr-Bremse ABS is the need to completely disable the system on the vehicle axle if only one wheel is faulty ABS elements. This is a consequence of using a common modulator for both wheels. For this reason, and also because of the difficulty of using a two-channel modulator in the system, Knorr-Bremse has now developed an ABS using single-channel modulators.
Single-channel modulators are easier to place on the vehicle and allow the braking pressure of different wheels to be changed completely independently of each other. From this point of view, single-channel modulators are convenient for use in traction control systems. Knorr-Bremse fast acting membrane modulators are similar in design to the WABCO ABS modulator.

Monday-Friday: 9.00-18.00
Saturday: 10.00-14.00
Sunday is a day off

At present, modern braking systems of trailers and semi-trailers of European production, as well as commercial vehicles, are mainly disc, and the main component of a disc brake is a caliper.

You can find spare parts for the repair of disc brakes for trailers and semi-trailers on our website. We bring to your attention spare parts for the repair of calipers manufactured by WABCO, KNORR-BREMSE, HALDEX, MERRITOR, BPW-TSB.

In our online store specializing in the sale of caliper repair kits, you can find everything you need to repair disc brake systems of modern trailers and semi-trailers, as well as the necessary instructions and catalogs that will help you in the correct selection of spare parts and directly repair the brake unit.

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