VOLVO
ECM-P049000 - Exhaust Gas Recirculation Control Circuit High. General Failure Information. No sub type information
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Pokaż modele wg rocznika i silnika (11)
- Volvo S80 (2007–)2007Tylko silnik: D5244T4, D5244T5
- Volvo S80 (2007–)2008–2009Tylko silnik: D4204T, D5244T4, D5244T5
- Volvo S80 (2007–)2010Tylko silnik: D4164T, D4204T
- Volvo S80 (2007–)2011Tylko silnik: D4164T
- Volvo V70 (2008–)2008–2009Tylko silnik: D4204T, D5244T4, D5244T5
- Volvo V70 (2008–)2010Tylko silnik: D4164T, D4204T
- Volvo V70 (2008–)2011Tylko silnik: D4164T
- Volvo XC60 (2009–)2009Wszystkie silniki oprócz: B6304T2
- Volvo XC70 (2008–)2008Wszystkie silniki oprócz: B6324S
- Volvo XC70 (2008–)2009Tylko silnik: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Tylko silnik: D5244T18, D5244T5
Co oznacza ten kod błędu?
The code concerns the EGR valve control circuit, where the signal is too high. The engine control module (ECM) monitors both the function of the valve and the signal from its internal power stage, and the code does not specify what kind of fault it is.
Możliwe przyczyny
- The signal wire is short-circuited to supply voltage
- Damaged position sensor or damaged EGR valve
- Loose contact, contact resistance or oxidation in the connections
- The EGR valve sticks, for example because of dirt or soot
- Break in the supply or ground wire
- The supply wire is short-circuited to supply voltage
Co możesz zrobić
- 1Check the fuses for the EGR system. Their location is given in the owner's manual
- 2Look for chafing or pinch damage on the signal wire, and check that the connectors are secure
- 3Use a multimeter to check that the signal wire and the supply wire have no contact with supply voltage
- 4Clean the EGR valve if it is sooty, and check that it does not bind
- 5If you have a diagnostic tool, read the position sensor value with the engine running and see whether it is unreasonable
- 6Replace a damaged EGR valve and have a workshop adapt it. Clear the code and road test
Objawy, które możesz zauważyć2
- The check engine lamp comes on or behaves abnormally
- A text message appears on the display
Na co może wpływać usterka1
- EGR control is lost
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.