VOLVO
KVM-B10D424 - Right rear Lock button. General Signal Failures. Signal stuck high
System
Keyless Vehicle Module (KVM)
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 lock button on the door handle on the right rear activates a switch and starts a timer when pressed. If the button has been held down for too long, the code is stored and the outer lock button stops locking the car. The fault may lie in the switch, the button or the wiring.
Possible causes
- The switch is faulty
- The lock button has been held pressed for an unusually long time
- The signal wire has a short to ground
What you can do
- 1Read and note the code, clear it and press the right rear button to see whether locking works
- 2Check that the button returns fully when released and does not stick or appear damaged
- 3With the ignition off, use a multimeter to check that the wire to the button is not connected to ground (the body)
- 4If you have a diagnostic tool: press the button and check that its value in live data changes between activated and inactive
- 5Have a workshop replace the button if it is faulty and the wire is sound
Symptoms you may notice1
- Locking with the outer lock button does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.