VOLVO
ECM-843C - Starter motor relay. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2006–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2006–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The engine control module (ECM) monitors the signal wire to the starter motor relay at start. The code is set when the voltage on that wire stays too high for a certain time. The fault may come from a signal wire shorted to supply voltage, a damaged starter motor relay or a damaged control module.
Mulige årsaker
- The signal wire is shorted to supply voltage
- Damaged starter motor relay
- Damaged control module
Hva du kan gjøre
- 1Read the code, clear it and check that it does not return at the next start
- 2With the ignition off, check the connectors to the starter motor relay for loose fit, oxidation and contact resistance
- 3Check the signal wire for a short to supply voltage; use a multimeter to confirm it has no contact with battery voltage
- 4Repair as needed and check that the code does not come back
- 5If the fault remains after these checks, have a workshop check the starter motor relay and the control module
Symptomer du kan merke1
- The engine cannot be started
Hva feilen kan påvirke1
- Only manual starting is possible
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.