VOLVO
CEM-4A38 - Fuel level sensor. Short-circuit to ground
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (5)
Was bedeutet der Fehlercode?
The CEM keeps watching the pump side sensor in the tank. If the sensor is shorted to ground, the code is set. The trip computer then shows an empty tank too early, and the fuel gauge may show zero.
Mögliche Ursachen
- The sensor on the pump side is shorted to ground
Was Sie tun können
- 1With the ignition off, unplug CEM connector D. Check that the connectors are seated and not corroded
- 2Use a multimeter to check that the signal wire is not shorted to ground
- 3If the wire is intact, have a workshop replace the sensor, since it sits in the tank
- 4After the work, clear the code and check that the fuel gauge shows the correct level
Symptome, die Sie bemerken können2
- The trip computer shows an empty tank too early
- The fuel gauge reads zero although the tank holds fuel
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.