VOLVO
CEM-3F91 - Fuel pump relay. Short-circuit to supply voltage
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Co oznacza ten kod błędu?
The CEM checks the fuel pump relay, which sits inside the CEM. The fault is set if the fuel pump output is shorted to supply voltage, or if the supply wire has a break or the pump is not connected. Older cars with a CEM up to model year 2006 can also have an internal ground path damaged by a short.
Możliwe przyczyny
- The supply wire to the fuel pump is shorted to supply voltage
- A break in the supply wire to the fuel pump, or the pump is not connected
Co możesz zrobić
- 1Do not connect the fuel pump or any outside supply without first unplugging the CEM connector. An internal ground path in the CEM can otherwise break
- 2Use a multimeter to check that the wire to the fuel pump has no short to supply voltage or break
- 3Check that the fuel pump is connected and that the connectors are clean and tight
- 4If the fault remains after checking the wire, have a workshop check the CEM, since a short to supply voltage can damage it
- 5After the work, clear the code and check that it does not return
Objawy, które możesz zauważyć1
- The battery discharges
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.