VOLVO
KVM-E001 - Control module communication. Faulty communication
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 code is set when the control module detects a serious disturbance on the CAN network, the car's internal communication bus, so that communication is blocked. The module can then not be reached, and keyless operation or the remote control may be affected.
Możliwe przyczyny
- Short circuit between the CAN wires
- Open circuit in one of the CAN wires
- Internal fault in the control module
- Internal fault in another control module on the same part of the CAN network
Co możesz zrobić
- 1Read the codes, clear them and road test the car to see whether the code comes back
- 2Check that the battery is in good condition and that its terminals are tight
- 3Look for chafed, pinched or damaged CAN wires in the visible parts of the wiring harness, especially where it runs near sharp edges or moving parts
- 4Check the connectors on the control modules in the CAN network for oxidation and loose connections
- 5Have a workshop with diagnostic equipment measure the resistance in the CAN network and find which module is disturbing communication
- 6Leave the central electronic module (CEM) in place when the only problem is on the CAN network; swap it only if troubleshooting proves an internal fault in it
Objawy, które możesz zauważyć2
- No, or reduced, keyless function
- The remote control cannot be used
Na co może wpływać usterka2
- The control module switches itself off (so-called bus-off)
- It stays off until its power supply is cut, and it tries to communicate again when power is restored
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.