VOLVO
ECM-0034 - Bypass valve, charge air cooler (CAC). Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (10)
- Volvo C30 (2007–2013)2007Kun motor: D4204T
- Volvo C30 (2007–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6
- Volvo C70 (2006–2013)2008Kun motor: D4204T
- Volvo C70 (2006–2013)2009–2010Kun motor: D4204T · Kun girkasse: MMT6
- Volvo S40 (2004–2013)2005–2006Kun motor: D4204T, D4204T2
- Volvo S40 (2004–2013)2007Kun motor: D4204T
- Volvo S40 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6
- Volvo V50 (2004–2013)2005–2006Kun motor: D4204T, D4204T2
- Volvo V50 (2004–2013)2007Kun motor: D4204T
- Volvo V50 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6
Hva betyr feilkoden?
The engine control module (ECM) keeps watch on the charge air cooler bypass valve and has registered a signal to the valve that is too low. The cause is most often a short to ground in the signal wire, but a break in the power supply or a faulty valve can also cause the fault.
Mulige årsaker
- Short circuit to ground in the signal wire
- Open circuit in the power supply to the valve
- Faulty bypass valve on the charge air cooler (CAC)
Hva du kan gjøre
- 1With the ignition off, check the connector to the bypass valve for looseness, contact resistance and oxidation
- 2Unplug the connector and use a multimeter to check that the signal wire to the valve has no contact with ground (the body)
- 3Erase the fault codes, take the car for a test drive and see whether the fault returns
- 4If the fault returns and the wiring is sound, have a workshop replace the bypass valve
Symptomer du kan merke2
- Car feels weak, lacks power or performs poorly
- Warning symbol and text message in the display
Hva feilen kan påvirke1
- Engine speed (RPM) may be limited
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.