VOLVO
ECM-P048900 - Exhaust Gas Recirculation Control Circuit Low. 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 a signal for the EGR valve control that is too low. Its internal power stage drives the EGR motor, and the ECM checks that signal while the engine runs. A low signal can come from several faults in wires, connectors or the valve.
Możliwe przyczyny
- Contact resistance, oxidation or loose contact in the connectors and connections
- Signal wire short-circuited to ground, or short-circuited to supply voltage
- Damaged position sensor or damaged EGR valve
- The EGR valve sticks, for example because of dirt or soot
- Break in the supply or ground wire, or either of these wires short-circuited to ground or supply voltage
- The wires to the EGR valve motor are short-circuited to supply voltage
Co możesz zrobić
- 1Check that the fuses are intact. Their location is given in the owner's manual or on the fuse box cover
- 2With the ignition switched off, check the intake system for leaks and damage
- 3Clean the EGR valve of dirt and soot, and check that it does not bind
- 4Use a multimeter to check that the wires to the EGR valve have no break and are not short-circuited to ground or supply voltage
- 5If you have a diagnostic tool, activate the EGR valve and check whether the position sensor value changes. If it stays still after cleaning, the valve is probably damaged
- 6After replacement or repair, a workshop adapts the EGR valve. Clear the code and road test
Objawy, które możesz zauważyć3
- The check engine lamp comes on or behaves abnormally
- Poor performance or the car lacks power
- A red warning symbol and a message appear on the display
Na co może wpływać usterka1
- EGR control is lost
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.