VOLVO
CEM-4F31 - Battery temperature. Signal too low
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (5)
Was bedeutet der Fehlercode?
The CEM treats it as a fault when the signal wire from the battery temperature sensor is shorted to ground. The code is then set, and the battery may discharge. The battery temperature may also be shown incorrectly.
Mögliche Ursachen
- The signal wire is shorted to ground
- A damaged battery temperature sensor
Was Sie tun können
- 1With a diagnostic tool, if you have one, check that the battery temperature in live data is reasonable
- 2Check that the connectors at the battery and at the CEM are seated and not corroded
- 3Use a multimeter to check that the signal wire from the battery sensor is not shorted to ground
- 4If the fault remains, have a workshop replace the battery temperature sensor
- 5After the work, clear the code and check that the battery charges normally
Symptome, die Sie bemerken können1
- The battery discharges
Was der Fehler beeinflussen kann1
- The battery temperature is shown incorrectly
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.