Was bedeutet der Fehlercode ECM-P014300?

Diagnose und Fehlercodedefinition für ECM-P014300 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

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

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

8 Modelle

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

Modelle nach Baujahr und Motor anzeigen (15)

Was bedeutet der Fehlercode?

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.

Mögliche Ursachen

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

Was Sie tun können

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

Symptome, die Sie bemerken können1

Check engine light (MIL) on

Was der Fehler beeinflussen kann1

Control with the rear oxygen sensor is switched off

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.