VOLVO
KVM-0023 - Switch unlocking right rear. Signal missing
System
Keyless Vehicle Module (KVM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS40 (2004–2013), V50 (2004–2013)
Show models by year and engine (2)
What does this fault code mean?
The keyless vehicle module (KVM) compares the signals from the switch in the door handle and the switch in the lock cylinder on the right rear door. The code is stored when the lock cylinder switch is activated before the handle switch has registered. Despite the name signal missing, the handle switch is judged to be faulty, so unlocking of the rear door may be delayed.
Possible causes
- The right rear door handle switch is faulty
- Open circuit in the wiring between the module and the right rear handle switch
- The signal wire has a short to ground
What you can do
- 1Read and note the code, clear it, then pull the right rear handle and check whether the door unlocks immediately
- 2With the ignition off, use a multimeter to check that the wire between the KVM and the handle switch has no open circuit and no connection to ground (the body)
- 3Make sure the ground point is firmly fixed and free from oxidation, and that the ground wire between the handle and the ground point is intact
- 4If you have a diagnostic tool: pull the handle out and check that the handle switch value in live data shows activated
- 5Have a workshop replace the door handle if no other fault is found
Symptoms you may notice1
- The door unlocks with a delay
What the fault can affect1
- The keyless vehicle module (KVM) does not send the unlock signal to the central locking straight away when the handle is pulled
General guidance for car owners. Diagnosis on the car can point to a different cause.