VOLVO
ECM-821B - System relay. Signal missing
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
8 ModelleC70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (13)
- Volvo C70 (2006–2013)2006Nur Motor: B5254T3
- Volvo S40 (2004–2013)2005–2006Nur Motor: B5254T3
- Volvo S60 (2001–2009)2005–2006Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S80 (1999–2006)2005–2006Nur Motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2006Nur Motor: B5254T3
- Volvo V70 (2000–2008)2005Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006Nur Motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2005Alle Motoren außer: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Nur Motor: B5244T4, B5254T2
- Volvo XC90 (2003–)2005–2006Nur Motor: B5254T2, B6294T
- Volvo XC90 (2003–)2007–2012Nur Motor: B5254T2
- Volvo XC90 (2003–)2013–2014Nur Motor: B5254T9
- Volvo XC90 (2003–)2015
Was bedeutet der Fehlercode?
The ECM monitors the feed through the system relay and finds it too low. The fault may come from the charging system, contact resistance in the connections, a break in the signal wire or a damaged relay. The starter cranks but the engine will not run.
Mögliche Ursachen
- Faulty charging system
- Contact resistance in the connections
- Break in the signal wire to the system relay
- Damaged system relay
Was Sie tun können
- 1Check the battery voltage and condition
- 2Look for loose or corroded connectors at the system relay
- 3Using a multimeter, check that the signal wire to the system relay is not broken
- 4Check that the generator charges, as a faulty charging system can cause the fault
- 5If the fault remains, have a workshop try a new system relay
Symptome, die Sie bemerken können1
- The starter cranks but the engine does not start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.