Co oznacza kod błędu ECM-P014300?

Diagnostyka i definicja kodu błędu dla ECM-P014300 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-P014300 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3). General Failure Information. No sub type information

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

8 modeli

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Pokaż modele wg rocznika i silnika (15)

Co oznacza ten kod błędu?

Although the code is named for a low voltage, it concerns the signal from the oxygen sensor in bank 1, sensor 3. The code can only be set on cars with more than two oxygen sensors. The engine control module (ECM) sets it when the sensor voltage has not reached a certain value even though the heater is active. The code is a secondary fault: the root fault must be fixed first, and the code can then be cleared.

Możliwe przyczyny

Signal wire shorted to ground
Open circuit in the signal wire
Contact resistance and oxidation in the connections
Damaged rear oxygen sensor

Co możesz zrobić

1Read the fault codes in the transmission control module (TCM) and the engine control module (ECM), and start with the code for the root fault
2Repair the root fault first, then clear this code
3Check the connections at the oxygen sensor for contact resistance and oxidation; do not use rust solvent spray or grease
4Use a multimeter to check that the signal wire has no open circuit and is not shorted to ground

Objawy, które możesz zauważyć1

Check engine light (MIL) on

Na co może wpływać usterka1

Control with the rear oxygen sensor is switched off

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