VOLVO
MMM-U300362 - Battery voltage. Algorithm Based Failures. Signal compare failure
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?
The multimedia module (MMM) compares its own supply voltage with the CEM's voltage. The code is only worth acting on if it has been active for a while during the same drive and you notice something working worse; otherwise erasing it is enough.
Mögliche Ursachen
- Supply wire short-circuited to ground
- Open circuit in the supply wire
Was Sie tun können
- 1Erase the code; if it does not come back and you notice no problems, no action is needed
- 2If the code returns and the navigation works worse, look for damage and chafing on the supply wire to the multimedia module
- 3With a multimeter you can check that the supply wire has no contact with ground
- 4Have a workshop check the supply and the voltage relative to the central electronic module (CEM) if the fault returns and causes malfunction
Symptome, die Sie bemerken können1
- The navigation does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.