VOLVO
SWM-E001 - Control module communication. Faulty communication
Układ
Moduł przełączników na kierownicy (SWM)
Modele Volvo, których dotyczy ten kod błędu
Ten kod błędu ma różne znaczenie w zależności od modelu, rocznika lub silnika. Wybierz znaczenie, które dotyczy Twojego samochodu.
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Co oznacza ten kod błędu?
The steering wheel module (SWM) has registered a serious disturbance in the CAN communication, so communication is blocked. The fault can lie in a short circuit or open circuit on the CAN wires, in the steering wheel module itself, or in another control module on the same part of the CAN network.
Możliwe przyczyny
- Short circuit between the CAN wires
- Open circuit in one of the CAN wires
- Internal fault in the steering wheel module (SWM)
- Internal fault in another control module on the same part of the CAN network
Co możesz zrobić
- 1Read the fault codes in the CEM and in the other control modules; if the CEM shows codes for lost communication, deal with those first
- 2Check the battery voltage and that the connectors to the steering wheel module are secure and free from corrosion
- 3Twist the wiring harness and move the connectors while the car is standing still, to see whether the fault comes and goes
- 4Clear the fault codes and road test the car
- 5After a repair: disconnect the battery negative terminal for a while and reconnect it, so that control modules stuck in limited mode (Limp-Home) are reset
- 6If the fault remains, have a workshop measure the CAN wires to ground and supply voltage and check the other control modules; a faulty one must be replaced
Objawy, które możesz zauważyć5
- The turn signal switch does not work
- The turn signal lamps do not work
- Cruise control does not work at all
- The windshield wipers only run at the lowest speed
- The front windshield washer does not work
Na co może wpływać usterka2
- The steering wheel module (SWM) shuts itself off (“bus-off”)
- It stays off until its power supply is cut and reconnected, and then tries to communicate again
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.