VOLVO
CEM-1C05 - 30 Power supply. Signal too low. Intermittent fault
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?
The supply voltage from the battery to the CEM (30-supply) has been too low at some point. The fault is intermittent, so it may not be present right now. The cause is often poor contact in the connections, a weak battery or a defective generator.
Możliwe przyczyny
- Contact resistance or poor connections
- A weak battery that needs charging, giving low voltage
- A defective generator
Co możesz zrobić
- 1Check that the battery terminals and connections are clean, tight and free of corrosion
- 2Check that the cables between the battery, generator and starter motor are intact and not chafed. Use a multimeter to check they have no break
- 3Check that the battery is charged. Charge it if needed
- 4Check the generator connections and the connectors to the CEM. With a diagnostic tool, follow the battery voltage in live data with the engine running
- 5After the work, clear the code and check that the charging warning does not light again
Objawy, które możesz zauważyć4
- The charging lamp lights while the engine is running
- The headlight bulbs burn out
- The starter motor turns slowly
- The battery discharges
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.