Was bedeutet der Fehlercode ECM-6890?

Diagnose und Fehlercodedefinition für ECM-6890 (Volvo C30 (2007–2013), Volvo S40 (2004–2013), Volvo V50 (2004–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-6890 - Bypass valve, charge air cooler (CAC) (SAE J1930). Signal too high

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

3 Modelle

C30 (2007–2013), S40 (2004–2013), V50 (2004–2013)

Modelle nach Baujahr und Motor anzeigen (3)

Was bedeutet der Fehlercode?

The ECM watches the charge air cooler bypass valve through the feedback from the position sensor on it. If the signal is too high or too low with the ignition on, the code is set. The cause may be poor contact, a signal wire shorted to voltage or ground, or a damaged bypass valve.

Mögliche Ursachen

Loose connection, contact resistance or oxidation in the terminals
Position sensor signal line shorted to voltage
Open circuit in the signal ground lead to the position sensor
Damaged bypass valve
Open circuit or short to ground in the power supply to the position sensor
Open circuit or short to ground in the signal line to the position sensor

Was Sie tun können

1Check the plug at the ECM and at the bypass valve for loose contact, contact resistance and oxidation
2With the ignition off and the connector disconnected, use a multimeter to check that the leads to the position sensor are intact and have no contact with voltage or ground
3Read the code, clear it and road test the car to see whether it returns
4If the fault returns, have a workshop check the position sensor and replace the bypass valve if needed

Symptome, die Sie bemerken können1

Check engine lamp lit or behaving abnormally

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