Subaru Forester
+ Cars Subaru Forester
+ The maintenance instruction
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Control systems of the engine
+ Gear change box
+ Coupling, трансмиссионная a line
- Brake system
Specifications
System of antiblocking of brakes (ABS) - the general information and diagnostic checks
Removal and installation of basic components ABS
Check and adjustment of height of position and free wheeling of a pedal of a foot brake
Adjustment of a rod of pusher gtts / of the VACUUM amplifier of brakes
Check and adjustment of a drive of a lay brake
Check of serviceability of functioning of the vacuum amplifier of brakes
Replacement brake колодок disk brake mechanisms
Removal and installation of supports of disk brake mechanisms
Condition check, removal and installation of a brake disk
Replacement of boots and service of drum-type brake mechanisms of back wheels
Removal and installation of components of assemblage of a lay brake (model with disk brake mechanisms of back wheels)
Removal and installation of the main brake cylinder
Check of a condition and replacement of brake lines and hoses
Removal and installation of assemblage of the vacuum amplifier of brakes
Prorolling of brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
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System of antiblocking of brakes (ABS) - the general information and diagnostic checks
The general information
The scheme of an arrangement of basic components ABS
On equipped with brake system of usual type vehicles, sharp squeezing of a pedal of a foot brake leads to blocking of wheels. Coupling of a protector with a road covering is thus broken, and the car can go юзом, losing controllability. The system of antiblocking of brakes (ABS) prevents premature blocking of wheels, continuously operating speed of their rotation during braking at the expense of modulations of pressure of a hydraulic liquid in each of brake mechanisms. Number of basic components ABS concern: four wheel gauges, four rotors of wheel gauges, assemblage the management block (ECU) with the hydraulic modulator, gauge "G" (the gauge of overloads), the gauge-switch of stoplights and control lamp ABS.
The block of management and the hydraulic modulator
Built in in assemblage of the hydraulic modulator the block of management ABS traces speed of rotation of each of car wheels, being guided by arriving signals from wheel gauges. When at emergency braking any of wheels it starts to be blocked prematurely, the management module gives out a command on activation of the electromagnetic valve placed in the hydraulic modulator which, working, opens a corresponding site of a brake contour, letting out from it a part of a hydraulic liquid in the tank and, accordingly, reducing working pressure. As soon as speeds of rotation of wheels are equalised, the valve is closed again also pressure continues to rise. The cycle lasts fractions of a second on each of wheels and repeats until braking will not be finished. The system design allows to correct pressure in hydraulic contours of each of four wheels. Actually the scheme of functioning ABS is much more difficult, than it can seem, therefore composers of the present Management do not recommend to owners of cars to make attempt of independent performance of repair of system. In case of occurrence of malfunctions it will be most reasonable to address to experts of car-care centre.
Wheel gauges and their rotors
Each of wheels is equipped by the individual gauge of turns. The gauge consists of a rotor (a ring with teeth in regular intervals located on its perimetre) and a sensitive element in a kind подмагниченной coils. The sensitive element of the gauge fixes the moments of passage by it teeths of a rotor and will transform the received information to the electric signals continuously transferred to the module of management ABS. By results of processing of arriving signals ECU receives the information on relative speed of rotation of each of wheels. While all four wheels rotate with identical frequency, ABS stays in a passive condition. As soon as any of wheels starts to be blocked, the management block fixes change of an entering signal and develops a command on operation of the modulator instantly dumping pressure of a hydraulic liquid in the brake mechanism of the corresponding wheel.
The gauge-switch of stoplights
On the signals arriving from the gauge-switch of stoplights, ECU defines the moment when the driver squeezes out a pedal of a foot brake, at once activating ABS.
Diagnostics and regenerative repair
The special control lamp located on an instrument guard of the car notifies on refusals ABS of the driver. As soon as ECU elicits the infringement fact in system, it makes its switching-off. The brake system continues to function thus in a usual mode. Diagnostics of condition ABS is made each time at start of the engine and accompanied by short-term operation of a control lamp. During short time after start the llama should be disconnected automatically.
If control lamp ABS lights up and continues to burn during movement, first of all make sure that the lay brake is completely released, and the brake system functions regularly. If all in norm. Hence, there was refusal ABS. First of all make following elementary checks:
- Check up a condition of brake supports and wheel cylinders;
- Check up a condition and reliability of fastening of contact sockets of electroconducting ECU and wheel gauges (the Onboard electric equipment see the Head).
- Check up corresponding safety locks (the Onboard electric equipment see the Head).
Control lamp ABS does not light up at ignition inclusion
The scheme of an arrangement of contact plugs in socket В100 (in socket F2 of the plug are located mirror)
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1. Try to include ignitions, without making engine start, - if other, a part combinations of devices work control lamps regularly, pass to a following stage of check, otherwise it is necessary to make the necessary regenerative device of an instrument guard.
2. Switch off ignition. Remove a combination of devices and check up a condition of control lamp ABS. In case of need replace a lamp and repeat check.
3. If the lamp is perfectly in order, disconnect contact socket В100 (dark blue colour) from socket F2 located at the left under the panel of devices. Include ignition and measure pressure between weight and the plug 8 sockets В100. If the result of measurement makes more than 3 In, check up an electroconducting condition between a socket and a combination of devices. Make necessary regenerative repair. If pressure on a socket makes less than 3 In, pass to a following stage of check.
4. Switch off ignition. Check up correctness of landing of control lamp ABS in a payment of a combination of devices. Establish into place a combination.
5. Include ignition and repeat pressure gauging. If the result of measurement makes 10 15 In, pass to the following тапу checks, otherwise check up an electroconducting condition between a socket and a combination of devices. Make necessary regenerative repair.
6. Make pressure check between the plug 8 sockets F2 and weight. If the result of measurement makes less than 3 In, pass to a following stage of check, otherwise check up an electroconducting condition between the management block (ECU) ABS and a combination of devices. Make necessary regenerative repair. |
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The scheme of an arrangement of contact plugs in a socket of the block of management (ECU) ABS
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1. Measure resistance between the plug 23 contact sockets of electroconducting ECU ABS and weight. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise check up serviceability of grounding ECU. Make necessary regenerative repair.
2. Measure resistance between weight and the plug 8 socket F2. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise check up a condition of a socket and a plait of its electroconducting. Make necessary regenerative repair, in case of need replace a socket.
3. Switch off ignition and check up serviceability of a condition of contact sockets on a combination of devices, - if signs of infringement of reliability of contacts are absent, replace assemblage ECU ABS with the hydraulic modulator. |
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Control lamp ABS is not disconnected after engine start
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At a detachment of electroconducting from the block of management ABS a part Pads the gauge-switch closes a contour between plugs 31 and 23 sockets, thus there should be an operation of control lamp ABS. |
The scheme of an arrangement of basic components ABS
Site of diagnostic socket DLC and the scheme of an arrangement of its contact plugs
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1. Make sure of completeness of landing and reliability of fixing of a contact socket of electroconducting ECU ABS on assemblage of the hydraulic modulator.
2. Measure resistance between weight and each of diagnostic plugs of socket DLC. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise check up a condition of a plait of electroconducting of socket DLC, make necessary regenerative repair.
3. Switch off ignition and connect the plug № 6 to a diagnostic conclusion.
4. Connect electroconducting to ECU ABS. Measure resistance between weight and the plug № 4 sockets of electroconducting of the block of management. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise check up an electroconducting condition between a diagnostic socket and ECU.
5. Start the engine on single turns and check up pressure between plug "In" on the back party of the generator (the food plug) and weight. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise replace/repair the generator and repeat check.
6. Switch off ignition. Check up a condition of polar plugs of the battery and reliability of fastening on them клеммных tips of wires. In case of need make necessary corrections.
7. Start the engine on single turns and measure pressure between weight and the plug № 1 contact socket ECU ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up a condition of electroconducting of a chain of giving of a food. Make necessary regenerative repair.
8. Disunite socket В100/F2 in the left top corner of the panel of devices. Include ignition, - if control lamp ABS does not work, pass to a following stage of check, otherwise check up an electroconducting condition on a chain site between a control lamp and socket В100.
9. Switch off ignition and check up a condition of contact plugs of socket ECU ABS. If plugs are perfectly in order, pass to a following stage of check, otherwise replace the management block.
10. Measure resistance between plugs 21 and 23 contact sockets ECU ABS. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise replace assemblage ECU / the hydraulic modulator. |
| 11. Measure resistance between weight and the plug 8 sockets F2. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting. |
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12. Connect electroconducting to ECU ABS and measure resistance between weight and the plug 8 sockets F2. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting.
13. Check up a condition and reliability of fixing of a contact socket of electroconducting ECU ABS. In case of need make necessary corrections, or replace the management block / the hydraulic modulator. |
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It is not possible to make reading of codes of malfunctions
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1. Measure resistance between weight and diagnostic plugs of socket DLC. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting.
2. Switch off ignition. Connect a diagnostic conclusion to the plug № 6 sockets DLC. Disconnect electroconducting from the block of management ABS. Measure resistance between weight and the plug № 4 contact sockets ECU. If the result of measurement makes less than 5 Ohm, pass to a following stage of check, otherwise check up an electroconducting condition on a chain site between socket DLC and the management block. Make necessary regenerative repair.
3. Check up a condition and reliability of fixing of a contact socket of electroconducting ECU ABS. In case of need make necessary corrections, or replace the management block / the hydraulic modulator. |
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Preparation for testing ABS
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1. Make sure of completeness of gymnastics of the battery, check up level of a brake liquid, estimate degree of deterioration of protectors, check up correctness of a rating of tyres.
2. Make sure of absence of signs of leaks in a hydraulic contour of brake system.
3. Estimate degree of deterioration brake колодок and disks, - in case of need make replacement.
4. Make sure of absence of signs “прихватывания” brakes. |
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Check of serviceability of functioning of the hydraulic modulator
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Use for connection to supports of brake mechanisms only special manometres. In order to avoid pollution of a brake liquid do not connect the manometres earlier used for check of hydraulic path АТ! |
Card of diagnostics of serviceability of functioning of hydraulic modulator ABS
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| 1. Turn out gates of prorolling of supports of brake mechanisms of forward wheels. |
| 2. Connect to supports manometres and pump over hydraulic system. Connect diagnostic plugs to plugs №№ 3 and 6 sockets DLC. |
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3. Go into the car forward or back wheels on the stand of brake diagnostics and translate transmission in neutral position. Expose a high-speed mode of testing in 4 or hardly less than km/h. Include ignition, - control lamp ABS should light up approximately for 1.5 seconds, then go out.
4. Within 0.5 seconds after switching-off of a control lamp squeeze out a pedal of a foot brake, - the hydraulic modulator should start to function. Watch indications of the manometres connected to supports, - the modulator should make декомпрессию contours of brake mechanisms of the left and right forward wheels, fixing of pressure and, then, again its raising. Initial pressure should make 35 кГс/см2; depth декомпрессии: to 5 кГс/см2 (and more low); the restored pressure: not less than 35 кГс/см2.
5. Switch off ignition. Disconnect manometres and repeat check, this time for contours of mechanisms of back wheels of the car. |
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Reading of codes of malfunctions of system of self-diagnostics ABS
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Preliminary check up serviceability of a condition and functioning of control lamp ABS (see above). |
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| 1. Find diagnostic socket ABS. |
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| 2. Switch off ignition and connect one of diagnostic plugs to the plug № 6 DLC. Include ignition and make reading highlighted by a control lamp brought in memory of the module of self-diagnostics ECU ABS of codes of malfunctions and execute corresponding of described below tests (see the table). The first always highlights a control code 11, it stands out in the end of procedure, is equal and as in case of absence in memory of any records. There is a storage possibility in the buffer simultaneously to three codes, and the first is highlighted brought by the last. See also a card of pressure of contact plugs of socket ECU ABS. |
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The list of codes of malfunctions ABS
Address also to Specifications of the Head of the Control system of the engine.
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№ a code |
Cause of a failure |
Subject number
To test performance (see more low) |
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11
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Control code |
—
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21
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Breakage in a chain of the right forward wheel gauge |
1
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22
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Short circuit in a chain of the right forward wheel gauge |
2
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23
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Breakage in a chain of the left forward wheel gauge |
1
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24
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Short circuit in a chain of the left forward wheel gauge |
2
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25
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Breakage in a chain of the right back wheel gauge |
1
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26
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Short circuit in a chain of the right back wheel gauge |
2
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27
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Breakage in a chain of the left back wheel gauge |
1
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28
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Short circuit in a chain of the left back wheel gauge |
2
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29
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Infringement of serviceability of delivery of a signal of the wheel gauge |
3
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31
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Refusal of the inlet electromagnetic valve
The right forward wheel |
4
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32
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Refusal of the final electromagnetic valve
The right forward wheel |
5
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33
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Refusal of the inlet electromagnetic valve
The left forward wheel |
4
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34
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Refusal of the final electromagnetic valve
The left forward wheel |
5
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45
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Refusal of the inlet electromagnetic valve
The right back wheel |
4
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36
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Refusal of the final electromagnetic valve
The right back wheel |
5
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37
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Refusal of the inlet electromagnetic valve of the left back wheel |
4
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38
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Refusal of the final electromagnetic valve of the left back wheel |
5
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41
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Infringement of serviceability of functioning ECU ABS |
6
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42
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Excessively low/high level of pressure of a food |
7
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44
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Infringement of serviceability of functioning of control system АТ |
8
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51
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Infringement of serviceability of functioning клапанного the relay |
9
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52
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Infringement of serviceability of functioning
drive the electromotor / its relay |
10
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54
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Infringement of serviceability of functioning
The gauge-switch of stoplights |
11
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56
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Infringement of serviceability of delivery of a signal of gauge "G" |
12
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Card of pressure of contact plugs of socket ECU ABS
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№ plugs
(+) — (–) |
Entrance/target signal |
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Result and measurement conditions |
The wheel
Gauges 2 |
The left forward wheel |
9 10
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0.12 1 In (20 Hz) |
| The right forward wheel |
11 12
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| The left back wheel |
7 8
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| The right back wheel |
14 15
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| Pressure of a food клапанного the relay 1 |
24 23
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10 15 In at the included ignition |
| Pressure of a food of the relay of the electromotor 1 |
25 23
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10 15 In at the included ignition |
Gauge "G" (only it is full -
приводные
Models) 2 |
Food giving |
30 28
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4.75 5.25 IN |
| Grounding |
28
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— |
| Target signal |
6 28
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2.3 0.2 In in horizontal position of the car |
| The gauge-switch of stoplights 1 |
2 23
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Less than 1.5 In at the switched off stoplights;
10 15 In at the included stoplights |
| Control lamp ABS 2 |
21 23
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Less than 1.5 In within 1.5 seconds after ignition inclusion;
10 15 In later 1.5 seconds after ignition inclusion |
| Signal ABS АТ (only models with АТ) 2 |
31 23
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Less than 1.5 In in passive condition ABS;
More than 5.5 In at active ABS |
| The monitor of a signal of functioning ABS 2 |
3 23
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Less than 1.5 In in passive condition ABS;
More than 5.5 In at active ABS |
Choice
The monitor 2 |
Data is accepted |
20 23
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Less than 1.5 In in the absence of the received data |
| Data is sent |
5 23
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4.75 5.25 in the absence of the sent data |
The diagnostic
Socket ABS 2 |
The plug № 3 |
29 23
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10 15 In at the included ignition |
| The plug № 6 |
4 23
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10 15 In at the included ignition |
| Giving of a food 1 |
1 23
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10 15 In at the included ignition |
| Grounding |
23
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— |
| Grounding |
26
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— |
Clearing of memory of the module of self-diagnostics ECU ABS
Having finished reading, three times within 12 seconds disconnect/connect the diagnostic plug from the plug 6 sockets DLC. Successful end of clearing of memory should prove to be true выcandlesиванием a control code 11.
The test № 1: Breakage in chains of the wheel gauge, or excessively high level of entrance pressure
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1. Switch off ignition. Disconnect electroconducting from the corresponding wheel gauge. Measure resistance between corresponding plugs of a contact socket of the gauge. If the result of measurement does not fall outside the limits a range 800 1200 Ohm, pass to a following stage of check, otherwise replace the gauge.
2. Disconnect electroconducting from ECU ABS. Include ignition and measure pressure between weight and the plug № 1 corresponding wheel gauge. If pressure is absent, pass to a following stage of check, otherwise replace the gauge.
3. Switch off ignition and connect electroconducting to the gauge. Measure resistance between corresponding plugs ECU ABS (see the table). Measure resistance between corresponding plugs of a contact socket of the gauge. If the result of measurement does not fall outside the limits a range 800 1200 Ohm, pass to a following stage of check, otherwise check up an electroconducting condition on a site between the block of management and the gauge. Make necessary regenerative repair. |
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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21
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11 и12
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23
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9 и10
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25
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13 и15
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27
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7 и8
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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21
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11
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23
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9
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25
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13
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27
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7
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1. Measure pressure between weight and corresponding plugs of contact socket ECU ABS (see the table).Если pressure takes place, eliminate the short circuit reason in a chain on a site between the gauge and ECU ABS. In the absence of pressure include ignition and repeat check. If pressure on the former is absent, pass to a following stage of check, otherwise check up an electroconducting condition between the gauge and ECU ABS, in case of need eliminate the short circuit reason.
2. Check up reliability of a tightening of bolts of fastening of the gauge and its rotor (Specifications see). In case of need tighten fixture and pass to a following stage of check.
3. Measure backlash size between the gauge and a rotor on all perimetre of the last. At an insufficient backlash (Specifications see) make its updating by means of the special adaptation (26755АА000). If the backlash is too great, remove remote linings and replace a rotor or the failed gauge. Having finished adjustment, pass to a following stage of check.
4. Check up size of palpation of a nave of a wheel. If the result of measurement makes less than 0.05 mm, pass to a following stage of check, otherwise replace a nave.
5. Switch off ignition and measure resistance between weight and the plug № 1 contact socket of the wheel gauge. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise replace the gauge.
6. Switch off ignition and connect to the wheel gauge electroconducting. Measure resistance between weight and the corresponding plug of contact socket ECU ABS. If the result of measurement makes more than 1 МОм, pass to a following stage of check, in opposite check up an electroconducting condition on a chain site between the gauge and ECU ABS. Make necessary regenerative repair. If electroconducting is perfectly in order, replace ECU.
7. Check up reliability of fastening of contact sockets ECU ABS and the wheel gauge. Make necessary corrections. If contacts are perfectly in order, pass to a following stage of check.
8. Restore initial connection of all contact sockets. Also repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 2: Short circuit in a chain of the wheel gauge
Check of the wheel gauge on presence of short circuit by means of an oscillograph (white colour are shown probeы, connected to weight of an oscillograph)
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1. Check up reliability of a tightening of bolts of fastening of the gauge and its rotor (Specifications see). In case of need tighten fixture and pass to a following stage of check.
2. Measure backlash size between the gauge and a rotor on all perimetre of the last. At an insufficient backlash (Specifications see) make its updating by means of the special adaptation (26755АА000). If the backlash is too great, remove remote linings and replace a rotor or the failed gauge. Having finished adjustment, pass to a following stage of check.
3. In the absence of possibility to take advantage of an oscillograph pass to check of a mechanical condition of a rotor and clearing of components.
4. In the presence of an oscillograph поддомкратьте the car also establish it on props, - wheels should come off the earth completely. Switch off ignition and connect an oscillograph to corresponding plugs of socket В100 in the left top corner of the panel of the device, and also to 12-contact socket F55 located under an instrument guard. |
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Performance of the given procedure can lead to record in memory of the module of self-diagnostics ECU ABS of a code of malfunction 29. |
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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22
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A100: 5 and 14
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24
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A100: 7 and 16
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26
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F55: 6 and 7
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28
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F55: 1 and 2
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1. Include ignition and, rotating a corresponding wheel of the car, watch oscillograph indications. The amplitude of a displayed sinusoidal signal should not fall outside the limits a range 0.12 1.00 In, - if the given condition is not carried out, or the signal has the wrong form, pass to a following stage of check, otherwise pass to performance of the procedure described in paragraph 4.
2. Attentively examine the wheel gauge and its rotor on presence of signs of damages and pollution. Wipe components, will rectify taking place faults.
3. Check up size of palpation of a nave of a wheel. If the result of measurement makes less than 0.05 mm, pass to a following stage of check, otherwise replace a nave.
4. Switch off ignition. Disconnect electroconducting from the corresponding wheel gauge. Measure resistance between corresponding plugs of a contact socket of the gauge. If the result of measurement does not fall outside the limits a range 800 1200 Ohm, pass to a following stage of check, otherwise replace the gauge.
5. Switch off ignition and measure resistance between weight and the plug № 1 contact socket of the wheel gauge. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise replace the gauge.
6. Switch off ignition and connect to the wheel gauge electroconducting. Measure resistance between weight and the corresponding plug of contact socket ECU ABS (see the table). If the result of measurement does not fall outside the limits a range 800 1200 Ohm, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a chain site between the gauge and ECU ABS. |
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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22
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9 and 10
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24
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9 and 10
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26
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13 and 15
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28
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7 and 8
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Measure resistance between weight and corresponding plugs of contact socket ECU ABS (see the table). If the result of measurement makes more than 1 мОм, pass to a following stage of check, otherwise check up electroconducting between the gauge and ECU on short circuit presence. Make necessary regenerative repair.
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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22
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11
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24
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9
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26
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13
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28
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7
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1. Measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a chain site between the gauge and I forge ABS.
2. Check up reliability of fastening of contact sockets ECU ABS and the wheel gauge. Make necessary corrections. If contacts are perfectly in order, pass to a following stage of check.
3. Make sure that automobile phone/transmitter of remote control are established far enough from a plait of electroconducting of the wheel gauge.
4. Restore initial connection of all contact sockets and measure resistance between weight and corresponding contacts экранированного a socket (see the table). If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise replace экранированный a plait. |
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№ the Diagnostic code (the list of codes see) |
№№ plugs of contact socket ECU ABS |
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22
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A100: 15
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24
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A100: 6
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26
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F55: 8
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28
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F55: 3
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1. Restore initial connection of all contact sockets and repeat procedure of reading of diagnostic codes.
2. If any changes (to the best) has not occurred, replace ECU ABS.
3. At occurrence of new codes pass to corresponding test.
4. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 3: the problems connected with serviceability of delivery by the wheel gauge of an information signal Take place
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Towage and поддомкрачивание the car, and also long keeping of a steering wheel turned out records in memory of the module of self-diagnostics ECU ABS of a code of malfunction 29 against the stop can lead. |
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1. Estimate a condition of protectors and pressure of a rating of tyres. In case of need make corresponding corrections/replacements.
2. Check up reliability of a tightening of bolts of fastening of the gauge and its rotor (Specifications see). In case of need tighten fixture and pass to a following stage of check.
3. Measure backlash size between the gauge and a rotor on all perimetre of the last. At an insufficient backlash (Specifications see) make its updating by means of the special adaptation (26755АА000). If the backlash is too great, remove remote linings and replace a rotor or the failed gauge. Having finished adjustment, pass to a following stage of check.
4. In the absence of possibility to take advantage of an oscillograph pass to check of a mechanical condition of a rotor and clearing of components. In the presence of an oscillograph поддомкратьте the car also establish it on props, - wheels should come off the earth completely. Switch off ignition and connect an oscillograph to corresponding plugs of socket В100 in the left top corner of the panel of the device, and also to 12-contact socket F55 located under an instrument guard.
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Performance of the given procedure can lead to record in memory of the module of self-diagnostics ECU ABS of a code of malfunction 29. |
5. Include ignition and, rotating a corresponding wheel of the car, watch oscillograph indications. The amplitude of a displayed sinusoidal signal should not fall outside the limits a range 0.12 1.00 In, - if the given condition is not carried out, or the signal has the wrong form, pass to a following stage of check, otherwise pass to performance of the procedure described above.
6. Attentively examine the wheel gauge and its rotor on presence of signs of damages and pollution. Wipe components, will rectify taking place faults.
7. Check up size of palpation of a nave of a wheel. If the result of measurement makes less than 0.05 mm, pass to a following stage of check, otherwise replace a nave.
8. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 4: Infringement of serviceability of functioning of the inlet electromagnetic valve
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1. Disconnect electroconducting from ECU ABS.
2. Start the engine on single turns and measure pressure between weight and the plug № 1 contact socket of the block of management. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition between the battery, the switch of ignition and ECU ABS. Make necessary regenerative repair.
3. Switch off ignition and measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality of grounding of the block of management.
4. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
5. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 5: Infringement of serviceability of functioning of the final electromagnetic valve
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1. 1 disconnect electroconducting from ECU ABS.
2. Start the engine on single turns and measure pressure between weight and the plug № 1 contact socket of the block of management. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition between the battery, the switch of ignition and ECU ABS. Make necessary regenerative repair.
3. Switch off ignition and measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality ECU.
4. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
5. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 6: Infringement of serviceability of functioning of the block of management (ECU) ABS
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1. Switch off ignition. Disconnect electroconducting from the block of management ABS and measure resistance between weight and the plug № 23 contact sockets. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality of grounding ECU.
2. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
3. Make sure that automobile phone/transmitter of remote control are established on sufficient removal from plaits of electroconducting ECU and wheel gauges.
4. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 7: the Deviation from face value of level of pressure of a food
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| 1. Start the engine and warm up it to normal working temperature. Check up correctness of installation of turns of idling. Measure pressure between plug "In" on the back party of the generator and weight. If the result of measurement makes 10 17 In, pass to a following stage of check, otherwise check up a condition of system of a charge (the engine Electric equipment see the Head) make necessary corrections.
2. Switch off ignition and check up a condition of polar plugs of the battery and reliability of fixing on them клеммных tips of wires. In case of need smooth out contact surfaces of plugs/tips. If plugs are perfectly in order, disconnect electroconducting from the management block (ECU) ABS, start the engine on single turns and measure pressure between weight and the plug № 1 contact socket ECU. If the result of measurement makes 10 17 In, pass to a following stage of check, otherwise check up an electroconducting condition between the switch of ignition and a contact socket of the block of management ABS. Make necessary regenerative repair.
3. Switch off ignition and measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality ECU.
4. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
5. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 8: Infringement of serviceability of functioning of control system АТ
The scheme of an arrangement of plugs in 24-contact socket TCM
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1. Check up marks of assemblage of hydraulic modulator/ECU ABS, - the code is put on a block surface between unions of connection of hydraulic lines and for the models equipped АТ looks like С7 (on models with РКПП code С8 is put down). If marks answer a complete set of your car, pass to a following stage of check, otherwise replace modulator/ECU ABS assemblage.
2. Switch off ignition and disconnect electroconducting from the module of management of transmission (TCM). Also disconnect electroconducting from ECU ABS. Measure resistance between weight and the plug № 3 contact sockets ECU. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise make regenerative repair of electroconducting on a site between TCM and ECU ABS.
3. Measure pressure between weight and the plug № 3 contact sockets ECU ABS. If the result of measurement makes less than 1 In, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between TCM and ECU ABS. |
| 4. Switch off ignition. Connect electroconducting to TCM, then again turn the ignition key in position ON. Measure pressure between weight and plugs № 19 and 11 24-contact sockets TCM. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise TCM requires regenerative repair, - if infringements of serviceability of functioning АТ take place, replace TCM. |
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5. Measure pressure between weight and plugs № 3 and 31 contact sockets ECU ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition on a site between ECU ABS and TCM. Make necessary regenerative repair.
6. Check up a condition and reliability of fixing of contact sockets ECU ABS and TCM. In case of need smooth out plugs and pass to a following stage of check.
7. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 9: Infringement of serviceability of functioning клапанного the relay
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1. Switch off ignition and disconnect electroconducting from the block of management ABS. Start the engine on single turns and measure pressure between weight and plugs №№ 1 and 24 contact sockets ECU ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition between the block of management ABS and the storage battery. Make необхоидмый regenerative repair.
2. Switch off ignition and measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality of grounding of the block of management.
3. Measure resistance between plugs №№ 23 and 24 contact sockets ECU ABS. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise replace the management block.
4. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
5. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 10: Infringement of serviceability of functioning drive the electromotor / its relay
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1. Switch off ignition. Disconnect electroconducting from ECU ABS, then again turn the ignition key in position ON. Measure pressure between weight and the plug № 25 contact sockets of the block of management. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise make regenerative repair of electroconducting on a site between the battery and ECU ABS. Check up a safety lock of holder SBF.
2. Switch off ignition and measure resistance between weight and the plug № 26 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise make regenerative repair of a chain of grounding of the block of management.
3. Start the engine on single turns and measure pressure between weight and the plug № 1 contact socket ECU ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition on sites between the battery, the switch of ignition and the block of management ABS. Make necessary regenerative repair.
4. Switch off ignition and measure resistance between weight and the plug № 23 contact sockets ECU ABS. If the result of measurement makes less than 0.5 Ohm, pass to a following stage of check, otherwise eliminate a cause of infringement of quality of grounding of the block of management.
5. Make check of serviceability of functioning of the hydraulic modulator (see above). If during check the sound of the rotating electromotor is audible, pass to a following stage of check, otherwise replace assemblage of the modulator/block of management ABS.
6. Check up serviceability of a condition and reliability of fixing of contact sockets of electroconducting on ECU ABS, the generator and the storage battery. In case of need make corresponding regenerative repair. If infringements of quality of contacts are absent, pass to a following stage of check.
7. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace assemblage of hydraulic modulator/ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 11: Infringement of serviceability of functioning of the gauge-switch of stoplights
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1. Check up serviceability of operation of stoplights at squeezing a pedal of a foot brake. In case of positive result of check pass to a following stage of check, otherwise check up a condition of lamps and electroconducting of a chain of stoplights.
2. Switch off ignition. Disconnect electroconducting from ECU ABS. Squeeze out a pedal of a foot brake and measure pressure between weight and the plug № 2 contact sockets of the block of management ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition on a site between the gauge-switch of stoplights and ECU ABS. Make necessary regenerative repair.
3. Check up a condition and reliability of fixing of contact sockets of the gauge-switch and the management block. In case of need make corresponding corrections. If contacts are perfectly in order, pass to a following stage of check.
4. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace assemblage of hydraulic modulator/ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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The test 12: Infringement of serviceability of delivery of a target signal of gauge "G"
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Car towage, and also поддомкрачивание it with a full separation of wheels from the earth can lead to entering in memory of the module of self-diagnostics ECU ABS. |
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1. Check up marks of assemblage of hydraulic modulator/ECU ABS, - the code is put on a block surface between unions of connection of hydraulic lines and for the models equipped АТ looks like С7 (on models with РКПП code С8 is put down). If marks answer a complete set of your car, pass to a following stage of check, otherwise replace modulator/ECU ABS assemblage.
2. Switch off ignition. Remove the central console. Отболтите gauge "G", without disconnecting from it electroconducting. Again turn the ignition key in position ON and measure pressure between plugs 1 and 3 from lateral aspect of a contact socket of the gauge. If the result of measurement makes 4.75 5.25 In, pass to a following stage of check, otherwise check up an electroconducting condition on a site between the gauge and the management block (ECU) ABS. Make necessary regenerative repair.
3. Switch off ignition. Disconnect electroconducting from ECU ABS and measure resistance between plugs №№ 28 and 30 (models 1999 вып.)/6 and 28 (models 2000 вып.) a contact socket of the block of management. If the result of measurement makes 4.3 4.9 clod, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between the gauge and ECU ABS.
4. Disconnect electroconducting from gauge "G". Measure resistance between weight and the plug № 6 contact sockets ECU ABS. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between the gauge and ECU ABS.
5. Measure pressure between weight and the plug № 6 contact sockets ECU ABS. If the result of measurement makes less than 1 In, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between the gauge and ECU ABS.
6. Repeat last check at the included ignition. If the result of measurement makes less than 1 In, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between the gauge and ECU ABS.
7. Measure resistance between weight and the plug № 28 contact sockets ECU ABS. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between the gauge and ECU ABS. If electroconducting is perfectly in order, replace assemblage ECU / the hydraulic modulator. |
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The scheme of placing of contact plugs in gauge "G" socket
The scheme of placing of contact plugs in gauge "G" socket
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1. Switch off ignition and, without disconnecting electroconducting, отболтите gauge "G". Check up reliability of fixing of contact sockets of the gauge and the block of management ABS. Include ignition and measure pressure between plugs № 2 (+) and № 3 (-) a contact socket of the gauge of horizontal level. If the result of measurement makes 2.1 2.4 In, pass to a following stage of check, otherwise replace gauge "G".
2. Measure pressure between plugs 2 (+) and 3 (-) a contact socket of the gauge of an inclination on 90 forward. If the result of measurement makes 3.7 4.1 In, pass to a following stage of check, otherwise replace gauge "G".
3. Measure pressure between plugs 2 (+) and 3 (-) a contact socket of the gauge of an inclination on 90 back. If the result of measurement makes 0.5 0.9 In, pass to a following stage of check, otherwise replace gauge "G".
4. Switch off ignition. Check up a condition and reliability of fixing of contact sockets of gauge "G" and ECU ABS. In case of need make corresponding regenerative repair. If contact connections are perfectly in order, pass to a following stage of check.
5. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace assemblage of hydraulic modulator/ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections.
6. Switch off ignition and disconnect electroconducting from the module of management of transmission (TCM). Also disconnect electroconducting from ECU ABS. Measure resistance between weight and the plug № 3 contact sockets ECU. If the result of measurement makes more than 1 МОм, pass to a following stage of check, otherwise make regenerative repair of electroconducting on a site between TCM and ECU ABS.
7. Measure pressure between weight and the plug № 3 contact sockets ECU ABS. If the result of measurement makes less than 1 In, pass to a following stage of check, otherwise make necessary regenerative repair of electroconducting on a site between TCM and ECU ABS.
8. Switch off ignition. Connect electroconducting to TCM, then again turn the ignition key in position ON. Measure pressure between weight and plugs № 19 and 11 24-contact sockets TCM. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise TCM requires regenerative repair, - if infringements of serviceability of functioning АТ take place, replace TCM.
9. Measure pressure between weight and plugs № 3 and 31 contact sockets ECU ABS. If the result of measurement makes 10 15 In, pass to a following stage of check, otherwise check up an electroconducting condition on a site between ECU ABS and TCM. Make necessary regenerative repair.
10. Check up a condition and reliability of fixing of contact sockets ECU ABS and TCM. In case of need smooth out plugs and pass to a following stage of check.
11. Switch off ignition. Restore initial connection of electroconducting. Clear memory of the module of self-diagnostics and repeat procedure of reading of diagnostic codes. If any changes (to the best) has not occurred, replace ECU ABS. At occurrence of new codes pass to corresponding test. If refusal has not repeated, hence, malfunction carried a temporality, - still make sure of reliability of fastening of all contact connections. |
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