VOLVO
CEM-3A03 - Fuel pump. Signal too low. Intermittent fault
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?
No supply voltage reaches the fuel pump when its relay is switched on. The fault is intermittent, so it may have occurred before without being active now. The engine may then fail to start.
Mögliche Ursachen
- A defective relay
- A blown fuse
- An open circuit in the supply cable
Was Sie tun können
- 1Check the fuel pump fuse. If it has blown, replace it once. If it blows again, use a multimeter to check the wire after it has no contact with ground
- 2Check that the fuel pump relay is seated and that its contacts are clean and not corroded
- 3Use a multimeter to check that the supply cable to the fuel pump has no break
- 4After the work, clear the code and check that the engine starts normally
Symptome, die Sie bemerken können1
- The engine does not start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.