VOLVO
MMM-U300317 - Battery Voltage. General Electrical Failures. Circuit voltage above 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 refers to battery voltage, the multimedia module (MMM) compares its own supply voltage with the CEM's reading. The code is set when that voltage is too high, which may be because the supply wire has been short-circuited to voltage.
Możliwe przyczyny
- Supply cable short-circuited to voltage
Co możesz zrobić
- 1Look for damage to the supply wire, particularly where it may have touched a live wire
- 2With a multimeter you can check that the supply wire has no contact with voltage while the car is switched off
- 3Check the connectors at the multimedia module for damage, loose contacts and oxidation
- 4Have a workshop measure the supply voltage to the multimedia module and compare it with that of the central electronic module
Objawy, które możesz zauważyć1
- The navigation does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.