VOLVO
CEM-4A33 - Fuel level sensor. Faulty signal
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug 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 (9)
- Volvo C30 (2007–2013)2007–2010
- Volvo C30 (2007–2013)2011–2012Alle Motoren außer: D4162T, D5204T, D5204T5
- Volvo C30 (2007–2013)2013Nur Motor: B4204S3, B4204S4, B5254T7
- Volvo C30 Electric (2011–2013)2011–2013
- Volvo C70 (2006–2013)2006–2007, 2011–2013
- Volvo S40 (2004–2013)2004–2010
- Volvo S40 (2004–2013)2011–2012Alle Motoren außer: D4162T, D5204T, D5204T5
- Volvo V50 (2004–2013)2004–2010
- Volvo V50 (2004–2013)2011–2012Alle Motoren außer: D4162T, D5204T, D5204T5
Was bedeutet der Fehlercode?
This variant applies to the C30, C30 Electric, C70, S40 and V50. The CEM registers that the fuel level sensor circuit is shorted to battery voltage or has a break. The fuel gauge then shows the wrong level, and the trip computer may show an empty tank too early.
Mögliche Ursachen
- A damaged fuel level sensor
- An internal fault in the DC/AC converter
Was Sie tun können
- 1With the ignition on, check whether the fuel gauge shows a level that matches the fuel in the tank
- 2Check that the connectors at the CEM and at the fuel pump are seated and not corroded
- 3Use a multimeter to check that the supply wire to the sensor has no break or short to supply voltage
- 4If the wires are intact and the fault remains, have a workshop replace the sensor or the DC/AC converter, since this needs access to the tank
- 5After the work, clear the code and check that the level is shown correctly
Symptome, die Sie bemerken können2
- The trip computer shows an empty tank too early
- The fuel gauge shows the wrong fuel level
Was der Fehler beeinflussen kann1
- The fuel level is set to zero
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.