А3, лампочка EPC

Ответ: А3, лампочка EPC

Checking angle sender for throttle valve actuator

Test sequence
– Connect vehicle diagnostic, testing and information system -VAS 5051- or fault reader -V.A.G 1551- and select engine electronics control unit by entering “address word ” 01. For this purpose, the ignition must be switched on.

Indicated on display:
– Enter “08” for the function “Read measured value block” and confirm entry with the Q key.
Rapid data transfer HELP

Select function XX


Indicated on display:
– Enter “062” for “Display group number 062” and confirm entry with the Q key.
– Check specifications for electronic throttle potentiometer voltages.
Reading measured value block Q

Enter display group number XXX


Display zones
1 2 3 4
Display Group 062: Electronic throttle potentiometer voltages
Display xx % xx % xx % xx %
Readout Throttle valve angle
(angle sender 1) Throttle valve angle
(angle sender 2) Accelerator
position sender Accelerator
position sender 2
Range 0...100 % 100...0 % 0...100 % 0...100 %
Specification 5.9...92.2 %
(Idling speed value: 5.9...15.2%;
Full load value:
84.0...92.2 %) 95.1...8.7 %
(Idling speed value: 84.2...95.1 %;
Full load value:
8.7...15.4 %) 12...97 % 4...49 %

Note!The engine control unit converts and displays the voltage readings from the angle senders as percentages of 5 V. (5 Volt supply corresponds to 100%).
– Observe readouts in display zones 1 and 2.
– Slowly depress accelerator pedal.
Percentage displayed in zone 1 should rise evenly. The tolerance range of 5.9...92.2 % is not fully utilised.
Percentage displayed in zone 2 should fall evenly. The tolerance range of 95.1...8.7 % is not fully utilised.
Note!t The reason why the value in display zone 1 rises and that in zone 2 falls is that the potentiometers (angle senders) in the throttle valve control unit operate in opposite directions.
t This means that the voltage picked off by one of the angle senders runs towards 5 V. (As the throttle is opened, the voltage becomes greater and the percentage increases).
t The voltage picked off by the angle sender 2 runs from 5 V towards 0 V. (As the throttle is opened, the voltage becomes smaller and the percentage decreases).
If the displays are not as described:
– Check the voltage supply and wiring to throttle valve control unit → Chapter. Pay particular attention to connectors, which may be loose, not properly engaged or corroded.
– Check the accelerator position senders → Chapter.

 

Ответ: А3, лампочка EPC

Checking accelerator position sender


Test sequence
– Connect vehicle diagnostic, testing and information system -VAS 5051- or fault reader -V.A.G 1551- and select engine electronics control unit by entering “address word ” 01. For this purpose, the ignition must be switched on.

Indicated on display:
– Enter “08” for the function “Read measured value block” and confirm entry with the Q key.
Rapid data transfer HELP

Select function XX


Indicated on display:
– Enter “062” for “Display group number 062” and confirm entry with the Q key.
– Check specifications for electronic throttle potentiometer voltages.
Reading measured value block Q

Enter display group number XXX


Display zones
1 2 3 4
Display Group 062: Electronic throttle potentiometer voltages
Display xx % xx % xx % xx %
Readout Throttle valve angle
(angle sender 1) Throttle valve angle
(angle sender 2) Accelerator
position sender Accelerator
position sender 2
Range 0...100 % 100...0 % 0...100 % 0...100 %
Specification 5.9...92.2 % 95.1...8.7 % 12...97 %
(idling value 8...18 %) 4...49 %
(idling value 3...13 %)

Note!The engine control unit converts and displays the voltage readings from the angle senders as percentages of 5 V. (5 Volt supply corresponds to 100%).
– Observe readouts in display zones 3 and 4.
– Slowly depress accelerator pedal.
Percentage displayed in zone 3 should rise evenly. The tolerance range from 12...97 % is not fully utilised.
Percentage displayed in zone 4 should also rise evenly. The tolerance range from 4...49 % is not fully utilised.
Note!The value displayed in zone 3 must always be about twice as large as that in zone 4.
If the displays are not as described:
– Check that the connector to the accelerator position sender is fitted securely and properly engaged and check the contacts in the connector for corrosion.
– Check the voltage supply and wiring to the accelerator position senders → Chapter.

Checking voltage supply
– Remove the driver's storage compartment: → Rep. Gr.
– Detach connector for accelerator position sensors.
– Switch on ignition.

– Connect multimeter as follows to measure voltage:

Connector
Contact Specification
1 + earth approx. 5 V
1 + 5 approx. 5 V
2 + earth approx. 5 V
2 + 3 approx. 5 V

If specifications are attained:
– Additionally check signal wires.
If the specifications are not attained:
– Check wiring between engine control unit and accelerator position senders.

Checking voltage supply
– Remove the driver's storage compartment: → Rep. Gr.
– Detach connector for accelerator position sensors.
– Switch on ignition.

– Connect multimeter as follows to measure voltage:

Connector
Contact Specification
1 + earth approx. 5 V
1 + 5 approx. 5 V
2 + earth approx. 5 V
2 + 3 approx. 5 V

If specifications are attained:
– Additionally check signal wires.
If the specifications are not attained:
– Check wiring between engine control unit and accelerator position senders.

 

Ответ: А3, лампочка EPC

Для DIMON A6
17511 - Heated oxygen sensor 1, bank 1 heater output too low
17524 - Heated oxygen sensor 1, bank 1 heater open circut

 

Ответ: А3, лампочка EPC

я так понимаю что под датчиком кислорода понимается лямбда зонд?
и весь глюк в нем

 

Ответ: А3, лампочка EPC

Верно. Первая ошибка слабый нагрев, вторая нагревательный элемент сдохххххх....Перед заменой лямбды проверить надёжность контакта в фишке и наличие питания на подогреве.

 

Ответ: А3, лампочка EPC

Ну просто выручил друг,огромное спасибо с меня ПЫВO,
да еще вопрос,а почему топливо не жрет если лямбда сдохла?Или может просто не звонится?

 

Ответ: А3, лампочка EPC

Подожди , ещё не вечер.

 

Ответ: А3, лампочка EPC

:cry2: :cry2: то есть все радости впереди,а инфу из елзы тянешь али дыр. источники имеешь?

 

Ответ: А3, лампочка EPC

Естесьно из первоисточника.

 

Ответ: А3, лампочка EPC

везет же,а как бы там инфой побаловаться

 

Ответ: А3, лампочка EPC

а что нужно ?

 

Ответ: А3, лампочка EPC

Ваша А3 случайно не серебристый металлик ?

 

Ответ: А3, лампочка EPC

Сори, если чегото не понял... можно продиагностировать лямбду, работает она или нет?

 

Ответ: А3, лампочка EPC

Конечно можно.
Checking lambda probe status

Indicated on display:
– Enter “030” for “Display group number 030” and confirm entry with the Q key.
– Check lambda probe status in display zone 1.
Note!The “lambda probe status” display indicates the status of the lambda control and lambda probe.
Basic setting Q

Enter display group number XXX


Display zones
1 2 3 4
Display Group 030: Lambda probe status
Display X X X X X X
Readout Lambda probe status, bank 1, probe 1 Lambda probe status, bank 1, probe 2
Range 0 = off
1 = on 0 = off
1 = on
Specification 1 1 1 1 1 1/0
Note: If the specified value is not attained → Chapter
If the specified value is attained but a fault is stored in the fault memory ⇒ Check lambda probe learned values and control, Page → Chapter


Significance of 3-digit readout of display group 030
X X X Display zone 1
1 Lambda control active
1 Lambda probe readiness
1 Condition of lambda probe heating

Checking lambda probe learned values and lambda control
– Press the C key.

Indicated on display:
– Enter “032” for “Display group number 032” and confirm entry with the Q key.
– Check lambda probe learned values and control in display zones 1 and 2:
Initiate basic setting Q

Enter display group number XXX


Display zones
1 2 3 4
Display group 032: Lambda learned values
Display xx.x % xx.x %
Readout Lambda learned value
Bank 1 at idling speed
(additive) Lambda learned value
Bank 1 at part throttle
(multiplicative)
Specification -33.0...33.0 %
Can fluctuate slightly -10.0...10.0 %
Can fluctuate slightly
Note: If the specification is not attained ⇒ Evaluation of display group 032, Page → Chapter

Evaluating display group 032
Display zone 1 / 2 Possible causes of fault Fault remedy
Lambda learned values
(mul.) below -10.0 % t Leakage in intake area
– Check intake system for leaks and rectify unmetered air → Chapter

Lambda learned values
(add.) below -33.0 % t Oil dilution
– Carry out oil change or drive vehicle fairly fast on out-of-town roads

t High oil consumption

t Air mass meter defective
– Check air mass meter → Chapter

t Solenoid valve for activated charcoal filter stuck open
– Check solenoid valve for activated charcoal filter → Chapter

t Fuel pressure too high
– Check fuel pressure regulator → Chapter

t Injector leaking
– Check injectors → Chapter

t Lambda probe heating defective
t Lambda probe dirty
– Check lambda probe heating → Chapter



Evaluating display group 032
Display zone 1 / 2 Possible causes of fault Fault remedy
Lambda learned values
(mul.) above 10.0 % t Unmetered air in intake area
– Check intake system for leaks and rectify unmetered air → Chapter

Lambda learned values
(add.) above 33.0 % t Fuel pressure too low
– Check fuel pressure regulator → Chapter

t Lambda probe heating defective
– Check lambda probe heating → Chapter

t Injector only opens partially or not at all
– Check injectors → Chapter

t Activated charcoal filter system solenoid valve sticking
– Check solenoid valve for activated charcoal filter → Chapter


– Press the C key.

Indicated on display:
– Enter “033” for “Display group number 033” and confirm entry with the Q key.
– Check lambda control in display zones 1 and 2:
Initiate basic setting Q

Enter display group number XXX


Display zones
1 2 3 4
Display Group 033: Lambda control
Display xx.x % x.xxx V
Readout Lambda control
bank 1, probe 1 Lambda probe
voltage, bank 1, probe 1
Specification The value should fluctuate slightly in the range -10.0...10.0 % The voltage should fluctuate in the range 1.4...1.6V

Note: If the specification is not attainted ⇒ Continued on Page → Chapter If the specification is not attained ⇒ Evaluation of display group 033, Page → Chapter

Note!The display must fluctuate around zero. If 0 is constantly displayed, the lambda control has switched from regulation to control because a fault has occurred in the lambda control. Interrogate fault memory.
Note!t The voltage signal for “Rich mixture (low level of residual oxygen)” is below 1.5V.
t The voltage signal for “Lean mixture (high level of residual oxygen)” is above 1.5V.

Evaluating display group 033
Display zone: 2 Possible causes of fault Fault remedy
Constant 1.5 V t Open circuit in line 1 between lambda probe and control unit
– Check basic voltage → Chapter

t Open circuit in line 5 between lambda probe and control unit

Constant 4.9 V t Short to positive in line 1 between lambda probe and control unit
– Check wiring of lambda probe upstream of catalytic converter → Chapter

Constant 0.0 V t Short to earth in line 1 between lambda probe and control unit

 

Ответ: А3, лампочка EPC

У Вас.