VOLVO
ECM-850C - 5 volt power supply. Signal too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Nur Motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Nur Motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
Was bedeutet der Fehlercode?
The engine control module (ECM) monitors the internal voltage circuits that feed the components, and the code is set when the voltage in one circuit is too high. The check runs with the ignition on. The fault can lie in a sensor, in the wire feeding it, or in the control module itself.
Mögliche Ursachen
- Voltage cable to a sensor shorted to voltage
- Damaged sensor
- Damaged engine control module (ECM)
Was Sie tun können
- 1Read the code, clear it and road test the car to see whether it comes back
- 2Check the sensor voltage cable for chafing and contact with voltage; use a multimeter to check that the cable has no contact with battery voltage
- 3Check the sensors on the same circuit for damage and poor contact
- 4If you have diagnostic equipment, read the sensor values in live data with the ignition on; a sensor showing a too-high value points to where the fault is
- 5If the code does not clear, have a workshop decide whether the control module needs replacing
Symptome, die Sie bemerken können3
- Poor performance
- The engine misfires
- The engine is hard to start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.