VOLVO
CEM-U001000 - Medium Speed CAN Communication Bus. General Failure Information. No sub type information
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
4 modeleS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Pokaż modele wg rocznika i silnika (4)
Co oznacza ten kod błędu?
The code concerns the medium speed CAN (MS-CAN). It is generic and does not say which type of fault lies behind it. It is set when a module gets no reply, and the gauges, instrument lighting and remote control can then stop working. The module switches itself off until its power supply is cut.
Możliwe przyczyny
- Short circuit or open circuit on a CAN wire in the medium speed network
- Internal fault in the module
- Internal fault in another module on the same part of the network
Co możesz zrobić
- 1Read the fault codes from all control modules and see which ones have lost communication on the medium speed network
- 2Check the network connectors for loose connections, corrosion and moisture
- 3Gently flex the wiring with the ignition on and see whether the gauges or the remote control change
- 4With a diagnostic tool, clear the fault codes and run a short test. If the fault returns straight away, it is active
- 5Resistance measurements on the network are best made by a workshop, since the network must be separated
- 6An internal module fault means the module must be replaced, which the workshop decides after fault tracing
Objawy, które możesz zauważyć3
- No gauges work
- The instrument lighting does not work
- The remote control does not work
Na co może wpływać usterka2
- The module switches itself off (bus-off) and stays off until its power supply is cut
- At the next power-up the module makes new attempts to communicate
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.