VOLVO
CEM-U300316 - Battery Voltage. General Electrical Failures. Circuit voltage below threshold
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
9 ModelleS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
Was bedeutet der Fehlercode?
The central electronic module (CEM) monitors the battery voltage and has found it too low for a while with the engine running. The cause may be a battery that is not charging enough, corroded connections or a generator that is not charging. The fault is stored with the engine running, once the low voltage has lasted long enough.
Mögliche Ursachen
- Poorly charged battery or corroded connecting cables
- Damaged generator (GEN)
- Damaged battery
Was Sie tun können
- 1Check that the battery terminals and earth connections are tight and free from corrosion
- 2Check that the battery is in good condition; a battery that will not hold its charge may need replacing
- 3If you have a diagnostic tool, read battery voltage in live data with the engine running and check that it stays steady
- 4If the generator warning lamp is on or the voltage drops when the engine runs, have a workshop check the generator
Symptome, die Sie bemerken können5
- The battery discharges
- The generator warning lamp comes on with the engine running
- The engine is hard to start or cranks slowly
- A text message appears in the display
- The engine does not start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.