Was bedeutet der Fehlercode ECM-P209628?

Diagnose und Fehlercodedefinition für ECM-P209628 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S80 (2007–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P209628 - Post Catalyst Fuel Trim System Too Lean Bank 1. General Signal Failures. Signal bias level out of range / zero adjustment failure

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

6 Modelle

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

Modelle nach Baujahr und Motor anzeigen (11)

Was bedeutet der Fehlercode?

Although the code is named signal bias or zero adjustment failure, the two oxygen sensors give conflicting pictures of the mixture. The ECM compares the adaptation values of the front and rear sensors, and the code is set when they deviate too much. The fault may lie in the front or rear sensor circuit.

Mögliche Ursachen

Leakage in the exhaust system
Oxygen sensor indicates an incorrectly lean mixture
Damaged oxygen sensor

Was Sie tun können

1Check the wiring to the oxygen sensors for damage, chafing and loose connectors
2If you have a diagnostic tool: read the oxygen sensor signals in live data with the engine running and see whether they differ more than they should
3Check the exhaust system for leaks, since air in the exhaust can give a wrong signal
4If the fault remains, have a workshop establish whether the engine control module has an internal fault

Symptome, die Sie bemerken können1

Check engine warning lamp lights or behaves abnormally

Was der Fehler beeinflussen kann2

Oxygen sensor control is switched off
Catalytic converter diagnostics are switched off

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