VOLVO
ECM-6870 - By-pass valve intercooler. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The engine control module (ECM) monitors the charge air cooler bypass valve and how it works. If the PWM signal between the module and the bypass valve is too high with the ignition on, the code is set. The cause may be a signal wire shorted to voltage, or a damaged bypass valve.
Mulige årsaker
- Signal wire shorted to voltage
- Damaged bypass valve
Hva du kan gjøre
- 1With the ignition off and the connector disconnected, use a multimeter to check that the signal wire to the bypass valve has no voltage
- 2Check that the wire is intact and not chafed, and that the bypass valve connector is fully engaged and free from oxidation
- 3Read the code, clear it and road test the car to see whether it returns
- 4If no fault is found and the code returns after clearing and a road test, have a workshop replace the bypass valve
Symptomer du kan merke1
- Check engine lamp lit or behaving abnormally
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