VOLVO
MMM-U300316 - Battery Voltage. General Electrical Failures. Circuit voltage below threshold
Układ
Moduł multimedialny (MMM)
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?
Although the code is named battery voltage, it concerns the multimedia module's (MMM) own supply voltage, compared with the CEM's voltage. The code is set when that supply is too low, which may come from a supply wire that is short-circuited to ground or has an open circuit.
Możliwe przyczyny
- Supply wire short-circuited to ground
- Open circuit in the supply wire
Co możesz zrobić
- 1Check the fuses for the multimedia system and make sure none has blown; if one has, check the wire for a short to ground before a new fuse is fitted
- 2Look for damage, chafing and breaks on the supply wire to the multimedia module
- 3With a multimeter you can check that the supply wire has no contact with ground (the body)
- 4Check whether the connectors at the multimedia module are loose or oxidised
- 5Have a workshop check the supply to the multimedia module if the fault remains
Objawy, które możesz zauważyć1
- The navigation does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.