VOLVO
CEM-8FA2 - Relay, horn. Activated too long
Układ
Centralny moduł elektroniczny (CEM)
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 CEM has registered that the relay for the horn has been activated for too long. The horn then sounds constantly, and a wire that has come into contact with battery voltage may be the cause.
Możliwe przyczyny
- Signal wire to the horn relay shorted to battery voltage
Co możesz zrobić
- 1If the horn sounds constantly, pull the horn fuse to silence it until the fault has been traced
- 2Clear the code once the horn is silenced and check whether it returns
- 3If you have a diagnostic tool, read the horn switch in live data: its status should change when you press and release the horn
- 4If the status does not change the fault is permanent; if it changes the fault has occurred before and is intermittent
- 5With the ignition off, use a multimeter to check that the signal wire to the horn relay has no contact with battery voltage
Objawy, które możesz zauważyć1
- The horn sounds constantly
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.