VOLVO
CEM-3A03 - Fuel pump. Signal too low. Intermittent fault
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Hva betyr feilkoden?
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.
Mulige årsaker
- A defective relay
- A blown fuse
- An open circuit in the supply cable
Hva du kan gjøre
- 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
Symptomer du kan merke1
- The engine does not start
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