VOLVO
KVM-0021 - Switch unlocking right front. Signal missing
Układ
Moduł dostępu bezkluczykowego (KVM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Co oznacza ten kod błędu?
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 front door. The fault code is stored when the lock cylinder switch is activated before the handle switch has registered. Even though the code is named signal missing, the switch in the door handle is the suspect, so unlocking of the door can be slow.
Możliwe przyczyny
- The right front door handle switch is faulty
- Open circuit in the wiring between the module and the right front handle switch
- The signal wire has a short to ground
Co możesz zrobić
- 1Read and note the code, clear it, then pull the right front 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 for the door control module is firmly fixed and free from oxidation, and that the ground wire between the handle and the door module 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
Objawy, które możesz zauważyć1
- The door unlocks with a delay
Na co może wpływać usterka1
- The keyless vehicle module (KVM) does not send the unlock signal to the central locking straight away when the handle is pulled
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.