Co oznacza kod błędu ECM-P256800?

Diagnostyka i definicja kodu błędu dla ECM-P256800 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo V70 (2008–)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-P256800 - Direct Ozone Reduction Catalyst Temperature Sensor Circuit Range/Performance. General Failure Information. No sub type information

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

4 modele

S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Pokaż modele wg rocznika i silnika (7)

Co oznacza ten kod błędu?

The engine control module (ECM) compares the radiator temperature sensor signal with the ambient and coolant temperatures at certain times. The code is set when the radiator changes temperature in a way that does not match the other temperatures. The fault may lie in the sensor, the radiator, the electric cooling fan or another temperature-related fault. Even though the code is named after a catalyst temperature sensor, it concerns the radiator temperature sensor.

Możliwe przyczyny

Another temperature-related fault in the control module, which should be traced first
Electric cooling fan performance too low
Contact resistance and oxidation in the connections
Damaged radiator

Co możesz zrobić

1Read the codes for other temperature sensors and fix those first, since this code can be caused by one of them
2Check that the electric cooling fan starts and runs, because this code can appear when it does not work
3If you have a diagnostic tool: activate the electric cooling fan and listen for it to start
4Check that the connector to the radiator temperature sensor is firmly seated and free from oxidation
5Look over the radiator for external damage
6If none of this finds anything, have a workshop decide whether the radiator or the sensor needs replacing

Objawy, które możesz zauważyć1

Emissions warning light comes on

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