VOLVO
CEM-8FA3 - Relay, signal horn. No signal. Intermittent fault
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
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 fault is intermittent: the signal to the horn relay coil was missing or too low on an earlier occasion, but it is no longer present. The horn may then stop working, and the cause may be oxidation in the relay socket, a relay that is loose or missing, or a faulty relay.
Możliwe przyczyny
- Oxidation in the relay socket contacts
- The relay is loose or missing
- Faulty relay, such as an open or short circuit to ground in the coil
Co możesz zrobić
- 1Clear the code and check whether it returns; an intermittent fault can be a temporary disturbance
- 2Check that the horn relay sits firmly in its socket and is not loose
- 3Check that the contacts in the relay socket are clean and free of oxidation
- 4Test the horn with the ignition on; if it only works now and then, the fault has been intermittent
- 5If the fault returns, have a workshop check the relay's driver circuit and replace the relay if needed
Objawy, które możesz zauważyć1
- The horn does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.