Was bedeutet der Fehlercode ECM-U011086?

Diagnose und Fehlercodedefinition für ECM-U011086 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo V70 (2008–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-U011086 - Lost Communication With Drive Motor Control Module. Bus Signal / Message Failures. Signal invalid

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

5 Modelle

S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Modelle nach Baujahr und Motor anzeigen (8)

Was bedeutet der Fehlercode?

The engine control module (ECM) monitors LIN communication with the alternator control module (ACM), which regulates charging. Although the code is titled lost communication with the drive motor control module, it applies to communication between the engine control module and the alternator control module. The code is set when the engine control module detects a fault in that communication.

Mögliche Ursachen

Contact resistance or oxidation in the connectors at the engine control module or the alternator control module
Open circuit in the signal wire between the engine control module and the alternator control module
Faulty alternator control module (ACM)

Was Sie tun können

1Read the codes and fix any other communication faults first, as they may share the cause
2Check that the fuses are intact and that the battery is well charged and has good voltage
3Check the connectors at the alternator and at the engine control module for loose, corroded or oxidised contacts
4Look for chafed or pinched signal wiring. Use a multimeter to check for a break or a short to ground
5Check that the engine earth points to the body are clean and tight
6If the fault returns: have a workshop with diagnostic equipment check the alternator control module and the alternator

Symptome, die Sie bemerken können1

Charging warning light comes on or behaves abnormally

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