VOLVO
ECM-851C - 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 supply circuits that feed the components. This variant applies when the voltage in one circuit is too high, and the check runs with the ignition on. The cause may be a sensor supply wire in contact with voltage, a damaged sensor or a damaged control module.
Mögliche Ursachen
- A sensor supply wire in contact with 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 supply wires for chafing; use a multimeter to confirm they are not connected to battery voltage
- 3Check that the sensor connectors are fully engaged and free from oxidation
- 4If you have diagnostic equipment, compare the sensor values in live data with the ignition on and see which sensor reads too high
- 5If the code remains after these checks, have a workshop decide whether the control module needs replacing
Symptome, die Sie bemerken können2
- Deterioration in performance
- Cranking works, but the engine will not start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.