VOLVO
IHU-B108788 - LIN Bus A. Bus Signal / Message Failures. Bus off
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?
Communication from the steering wheel buttons to the infotainment head unit (IHU) over LIN has stopped. The IHU checks the button status, and the code is stored when communication is lost completely.
Możliwe przyczyny
- Short-circuit to ground or supply voltage on the LIN bus
- Break in the communication wire
- Poor contact or oxidation in terminals or connections
- Open circuit in one connection
- Short-circuit in one connection
Co możesz zrobić
- 1Clear the code and road test the car to see whether it returns
- 2Check that the fuses are intact
- 3Check that the connectors at the steering wheel button connections are firmly seated and free from oxidation
- 4Use a multimeter to check that the communication wire has no open circuit and no short-circuit to ground
- 5If you have a diagnostic tool: check in live data whether the head unit reports contact with the steering wheel buttons when the ignition is on
- 6If the fault remains, have a workshop trace the LIN bus and the connectors further
Objawy, które możesz zauważyć1
- The steering wheel buttons for audio do not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.