Co oznacza kod błędu ECM-U028400?

Diagnostyka i definicja kodu błędu dla ECM-U028400 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S60 (2011–)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-U028400 - Lost Communication with Active Grille Air Shutter Module "A". General Failure Information. No sub type information

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

4 modele

S60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–)

Pokaż modele wg rocznika i silnika (15)

Co oznacza ten kod błędu?

The engine control module (ECM) sets the opening of the grille shutter through the active grille shutter control module (AGM) over LIN. The code is set when the engine control module has no communication with the AGM. Fault codes from the AGM are stored in the engine control module's memory.

Możliwe przyczyny

Break or short to ground on the supply voltage to the AGM
Break in the LIN connection between the engine control module and the AGM
Internal fault in the AGM

Co możesz zrobić

1First check for active fault codes in the shutter control module, as they are stored in the engine control module
2Check that the shutter slats are clean and free from dirt, snow, ice and other objects
3Check visually that the linkage to the shutter slats is secure. If it is loose, the shutter cannot open or close
4Check that the fuses are intact and that the connectors are tight, clean and not oxidised
5Look for chafed wiring. Use a multimeter to check that the LIN and earth wires have no break or short to ground or supply voltage
6With a diagnostic tool, do not start the engine until the shutter command has finished. If it returns, have a workshop check the module

Objawy, które możesz zauważyć1

Fuel consumption is abnormally high

Na co może wpływać usterka1

The electric cooling fan may run slightly faster than normal, as it is controlled by a calculated value

Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.