VOLVO
CEM-DF14 - CAN-L, high speed network. Signal too low
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Ten kod błędu ma różne znaczenie w zależności od modelu, rocznika lub silnika. Wybierz znaczenie, które dotyczy Twojego samochodu.
Dotyczy następujących modeli:
10 modeliC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Pokaż modele wg rocznika i silnika (10)
- Volvo C30 (2007–2013)2007–2013
- Volvo C30 Electric (2011–2013)2011–2013
- Volvo C70 (2006–2013)2006–2013
- Volvo S40 (2004–2013)2004–2012
- Volvo S60 (2001–2009)2005–2009
- Volvo S80 (1999–2006)2005–2006
- Volvo V50 (2004–2013)2004–2012
- Volvo V70 (2000–2008)2005–2008
- Volvo V70 XC / XC70 (2001–2007)2005–2007
- Volvo XC90 (2003–)2005–2015
Co oznacza ten kod błędu?
The CEM detects a short to earth on CAN L in the high speed network, and the signal becomes too low. This can cause radio interference, and communication between the control modules can be disturbed. The fault most often lies in the cable or a connector in the network.
Możliwe przyczyny
- Short to earth on the CAN L wire in the high speed network, for example a wire worn against the body
Co możesz zrobić
- 1With the ignition on, listen for radio interference while gently flexing the cable. If the interference changes, you have found where the fault is
- 2Read the fault codes from every control module and see which ones show communication faults. A fault on the high speed network often shows in more than one module
- 3Use a multimeter to check that the CAN L wire has no contact with earth or the body along its length
- 4Check the connectors in the high speed network for loose connections, corrosion and moisture
- 5Check that the harness is not worn against the body, especially at grommets and sharp edges
- 6The CEM should not be replaced for this code unless a workshop has confirmed an internal fault in the CEM
Objawy, które możesz zauważyć1
- Radio interference
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.