VOLVO
ECM-0320 - Engine speed (RPM) sensor signal. Signal missing
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (13)
- Volvo C30 (2007–2013)2007–2009Nur Motor: B4184S11, B4184S8, B4204S3
- Volvo C30 (2007–2013)2010Nur Motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo C30 (2007–2013)2011–2013Nur Motor: B4204S3, B4204S4
- Volvo S40 (2004–2013)2005Nur Motor: B4184S11
- Volvo S40 (2004–2013)2006Nur Motor: B4184S11, B4184S8
- Volvo S40 (2004–2013)2007–2009Nur Motor: B4184S11, B4184S8, B4204S3
- Volvo S40 (2004–2013)2010Nur Motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo S40 (2004–2013)2011–2012Nur Motor: B4204S3, B4204S4
- Volvo V50 (2004–2013)2005Nur Motor: B4184S11
- Volvo V50 (2004–2013)2006Nur Motor: B4184S11, B4184S8
- Volvo V50 (2004–2013)2007–2009Nur Motor: B4184S11, B4184S8, B4204S3
- Volvo V50 (2004–2013)2010Nur Motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo V50 (2004–2013)2011–2012Nur Motor: B4204S3, B4204S4
Was bedeutet der Fehlercode?
The engine control module (ECM) receives no signal from the impulse sensor, which tells it how fast the engine is turning and where the crankshaft is. Without that signal the control module does not know when to fire the ignition and inject fuel. The code is set both at start and while driving, and the causes are poor contact or a damaged impulse sensor.
Mögliche Ursachen
- Contact resistance or oxidation in the connections to the impulse sensor
- Damaged impulse sensor
Was Sie tun können
- 1Read out the fault code, erase it and check whether it returns at the next start
- 2Switch off the ignition and unplug the impulse sensor connector. Check the connector for looseness, contact resistance and oxidation
- 3Look for chafing, pinched areas and breaks in the wiring from the impulse sensor, especially where it runs close to the engine
- 4Use a multimeter to check that the signal wires from the impulse sensor have no open circuit and no short to ground or voltage
- 5With a diagnostic tool, read the crank speed signal in live data while cranking. If it is missing, the signal is not arriving
- 6If the fault remains, have a workshop with diagnostic equipment check and, if needed, replace the impulse sensor
Symptome, die Sie bemerken können2
- The malfunction indicator lamp (MIL) is lit
- The starter motor cranks but the engine does not start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.