VOLVO
ECM-0028 - System relay. Signal faulty. Intermittent fault.
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
3 modeleS70 (1997–2000), V70 (1997–2000), V70 (2000–2008)
Co oznacza ten kod błędu?
The engine control module has recorded a fault in the system relay, which switches off the main relay after the ignition is turned off. The fault is intermittent, meaning it comes and goes, and may not be present right now. The code normally causes no noticeable symptoms for the driver.
Możliwe przyczyny
- The main relay is faulty
- The signal wire is shorted to earth
Co możesz zrobić
- 1Check the wires and connectors to the system relay for play, chafing and corrosion
- 2Listen when the ignition is switched off: the main relay should switch off at the right time. If you hear nothing or notice anything unusual, make a note of it
- 3Measure with a multimeter that the signal wire to the relay is not shorted to earth
- 4Clear the fault code and road test the car. If it returns, have a workshop investigate the system relay and the main relay
Objawy, które możesz zauważyć1
- No noticeable symptoms for the driver
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.