VOLVO
ECM-P040484 - Exhaust Gas Recirculation Control Circuit Range/Performance. Bus Signal / Message Failures. Signal below allowable range
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 (6)
- Volvo S80 (2007–)2007–2009Tylko silnik: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Tylko silnik: D5244T4, D5244T5
- 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?
Although the code is named as a bus or message fault, it concerns the intake control during soot particle combustion. The ECM sets the code when it finds a fault in the intake control during soot burning, and the signal is below the permitted limit.
Możliwe przyczyny
- Fault code ECM-P040485 may have the same cause and should be read at the same time
- Air leak in the intake system
- Contact resistance or oxidation in the connectors
- Sticking EGR valve
- Damaged throttle unit
Co możesz zrobić
- 1Troubleshoot any other stored fault codes first, since this code can come from faults in other engine functions
- 2Check the EGR valve connector for play, contact resistance and oxidation
- 3Check that the intake system does not leak air, for example at hoses and connections
- 4Check the throttle unit connector for play, contact resistance and oxidation
- 5Check that the damper in the throttle unit moves freely and does not stick from dirt or soot
- 6If the fault remains, have a workshop check the throttle unit
Objawy, które możesz zauważyć1
- No noticeable symptoms for the driver
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.