VOLVO
KVM-0012 - Inner antenna. Signal missing
System
Keyless Vehicle Module (KVM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (4)
What does this fault code mean?
The KVM (keyless vehicle module) monitors the antennas once the car reaches a certain speed. The code is stored when no signal arrives from any of the inner antennas. The keyless functions then stop working completely or only partly.
Possible causes
- Open circuit in the signal wire of the inner antenna circuit
- One of the inner antennas is not connected
- None of the inner antennas is connected
- One of the antennas is faulty
What you can do
- 1Read and note the code, clear it and check whether it returns
- 2Disconnect the battery negative lead, then check that every inner antenna is connected and that the connectors are firmly seated
- 3Use a multimeter to check that the wire to each inner antenna is continuous all the way from the antenna to the KVM
- 4With the car stationary, move the connectors and the wiring harness and see whether the fault follows the movement
- 5Have a workshop with diagnostic equipment check the KVM and the antennas, and replace the faulty antenna if the wiring is sound
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.