VOLVO
IHU-B104E23 - Switch Forward. General Signal Failures. Signal stuck low
System
Infotainment Head Unit (IHU)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The infotainment head unit (IHU) monitors the forward button on the wheel. The code is set if the button has been active for too long, which shows that it has stuck.
Possible causes
- The forward button has jammed in the pressed position
What you can do
- 1Read the code, clear it, and road test the car to see whether it returns
- 2Check that the fuses are intact
- 3Press the forward button on the wheel a few times and check that it returns fully after each press
- 4If you have a diagnostic tool: check in live data whether the forward button value changes when you press and release the button
- 5If the button keeps sticking, have a workshop look at the steering wheel and the button further
Symptoms you may notice1
- Audio functions controlled from the steering wheel do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.