VOLVO
IHU-B1D7911 - Microphone Input. General Electrical Failures. Circuit short to ground
Układ
Jednostka główna infotainment (IHU)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
The infotainment head unit (IHU) monitors the microphone's signal wire. The code is stored when the signal from the microphone is too low, which points to a short-circuit to ground in the wire from the microphone.
Możliwe przyczyny
- The signal wire to the microphone is short-circuited to ground
- The microphone's signal wires are shorted together
Co możesz zrobić
- 1Clear the code and check whether it returns
- 2Check that the fuses are intact
- 3Make a test call using hands-free and ask the other person whether they can hear you
- 4Check that the microphone connector is firmly seated and free from oxidation, and that the wiring has no chafing or damage
- 5Use a multimeter to check that the microphone's signal wire is not short-circuited to ground
- 6If the fault remains, have a workshop trace the microphone and the wiring further
Objawy, które możesz zauważyć2
- The other party cannot hear you when you use hands-free
- The other party cannot hear you, sometimes or all the time
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.