VOLVO
CEM-2E03 - Comfort Relay, Signal too low
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 (5)
Was bedeutet der Fehlercode?
The CEM has registered too low a signal from the output to the coil of the comfort relay. The fault may be caused by a damaged relay, a short to ground in the relay drive circuit, or an open circuit in the relay coil. The blower fan, the climate control and battery voltage may be affected.
Mögliche Ursachen
- A damaged relay
- A short to ground in the relay drive circuit
- An open circuit in the relay coil
Was Sie tun können
- 1Check the fuses for the comfort functions in the passenger compartment and engine bay. If one has blown, replace it once
- 2The comfort relay is inside the CEM box. Replace it only if you can do so safely, otherwise have a workshop do it
- 3Check that the connectors in the CEM and at the fan are seated and not corroded
- 4Use a multimeter to check that the wire to the comfort relay has no short to ground
- 5After the work, clear the code and check that the fan works
Symptome, die Sie bemerken können3
- The blower fan does not work
- The climate control smells unusual
- The battery may show low voltage
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.