VOLVO
MMM-U300317 - Battery Voltage. General Electrical Failures. Circuit voltage above threshold
System
Multimedia-Modul (MMM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (4)
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- Supply cable short-circuited to voltage
Was Sie tun können
- 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
Symptome, die Sie bemerken können1
- The navigation does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.