VOLVO
ECM-4320 - Leak diagnostic unit, valve. Signal too low
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
7 modeliC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008)
Pokaż modele wg rocznika i silnika (11)
- Volvo C30 (2007–2013)2007–2011Tylko silnik: B5244S4
- Volvo C70 (2006–2013)2006–2011Tylko silnik: B5244S4
- Volvo S40 (2004–2013)2004Tylko silnik: B5244S4
- Volvo S40 (2004–2013)2005–2010Tylko silnik: B5244S4, B5244S7
- Volvo S60 (2001–2009)2003–2006Tylko silnik: B5244S, B5244S6
- Volvo S60 (2001–2009)2007–2009Tylko silnik: B5244S
- Volvo S80 (1999–2006)2003–2006Tylko silnik: B5244S
- Volvo V50 (2004–2013)2004Tylko silnik: B5244S4
- Volvo V50 (2004–2013)2005–2010Tylko silnik: B5244S4, B5244S7
- Volvo V70 (2000–2008)2003–2006Tylko silnik: B5244S, B5244S6
- Volvo V70 (2000–2008)2007–2008Tylko silnik: B5244S
Co oznacza ten kod błędu?
The engine control module keeps watch on the drive signal for the reset valve inside the leak diagnostic pump. When the signal is too low the fault code is set and the leak diagnosis is interrupted. The fault can be caused by the signal wire being short-circuited to ground or having an open circuit.
Możliwe przyczyny
- Signal wire short-circuited to ground
- Open circuit in the signal wire
- Signal wire short-circuited to supply voltage, where the signal is too high
- Damaged leak diagnostic pump
Co możesz zrobić
- 1Have you got a diagnostic tool: switch the valve on with the ignition on and listen for a click; if no click comes, the fault is most likely still active
- 2Check the connectors at the engine control module and the leak diagnostic pump for contact resistance and oxidation
- 3Look for chafed or pinched wiring to the reset valve, especially where the signal wire may have touched ground
- 4Use a multimeter to check that the signal wire has no contact with ground and is not open-circuited
- 5Have a workshop check the engine control module software and clear any faults before the leak troubleshooting continues
- 6Have a workshop replace the leak diagnostic pump if the wiring is intact but the fault remains
Objawy, które możesz zauważyć1
- Malfunction indicator lamp (MIL) is on
Na co może wpływać usterka1
- The leak diagnosis is interrupted
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.