VOLVO
ECM-842C - Starter motor relay. 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)2006–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo V50 (2004–2013)2006–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
Was bedeutet der Fehlercode?
The engine control module (ECM) checks the signal wire to the starter motor relay when the engine is started. If the voltage on the wire is too high for a certain time, the control module treats it as a fault and sets the code. The cause may be a wire shorted to supply voltage, a damaged starter motor relay or a damaged control module.
Mögliche Ursachen
- The signal wire is shorted to supply voltage
- Damaged starter motor relay
- Damaged control module
Was Sie tun können
- 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 to the starter motor relay for a short to battery voltage; use a multimeter to confirm it has no contact with battery voltage
- 4Check that the starter motor relay is seated properly and not damaged
- 5If the fault remains after these checks, have a workshop check the control module
Symptome, die Sie bemerken können1
- The engine does not start
Was der Fehler beeinflussen kann1
- Only manual starting is possible
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.