VOLVO
CEM-E000 - Control module communication. Faulty communication
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:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Co oznacza ten kod błędu?
Communication with the module on the high speed network is seriously disturbed, so CAN communication is blocked. The module then switches itself off. The fault code can only be read out when the fault is intermittent, because the module cannot be reached while the fault is present.
Możliwe przyczyny
- Short circuit between the CAN wires in the high speed network
- Open circuit in the CAN wires in the high speed network
- Internal fault in the module
- Internal fault in another module on the same part of the CAN network
Co możesz zrobić
- 1Note which fault codes are stored in which modules. This gives a good basis for the fault tracing
- 2Check first whether the CEM holds codes for lost communication, and follow those before the others
- 3Check the high speed network connectors for corrosion, loose connections and moisture
- 4Gently flex the harness with the ignition on and see whether the communication changes
- 5Resistance measurements on the network require the supply to be cut, so have a workshop make them with the proper adapter harness
- 6A module that communicates faulty must be replaced, so the workshop needs to establish which one it is
Objawy, które możesz zauważyć5
- The starter turns but the engine does not start
- The speedometer does not work
- The tachometer does not work
- The coolant temperature gauge does not work
- Cruise control does not work at all
Na co może wpływać usterka1
- The module goes into bus-off and stays disabled until its power supply is cut
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.