VOLVO
KVM-B10C81F - Interior centre antenna. General Electrical Failures. Circuit intermittent
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 fault is recorded as intermittent, so it may not be present at the moment. The keyless vehicle module (KVM) has detected an electrical fault in the interior centre antenna or in the wiring to it. It is checked with the engine running and the car in motion, and the keyless functions may then become weaker or stop.
Possible causes
- Open circuit or short to ground in the signal wire
- Short to supply voltage in the signal wire
- The antenna is broken
What you can do
- 1Read and note the code, clear it and run the engine to see whether it returns
- 2Inspect the wire and connector to the centre antenna for damage and chafing
- 3With the ignition off, use a multimeter to check that the wire has no open circuit and is not connected to ground or supply voltage
- 4Make sure the connectors are firmly seated and free from corrosion, and note when the fault appears, as it comes and goes
- 5Have a workshop with diagnostic equipment check the antenna and replace it if it is broken
Symptoms you may notice1
- Keyless functions do not work at all or work poorly
General guidance for car owners. Diagnosis on the car can point to a different cause.