Was bedeutet der Fehlercode IEM-U1A0087?

Diagnose und Fehlercodedefinition für IEM-U1A0087 (Volvo V60 (2011–), Volvo V60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

IEM-U1A0087 - Private Communication Network. Bus Signal / Message Failures. Missing message

System

Unbekanntes System / Herstellerspezifisch

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

1 Modell

V60 (2011–)

Modelle nach Baujahr und Motor anzeigen (2)

Was bedeutet der Fehlercode?

The electric rear axle drive module (IEM) monitors its internal functions and the communication with the clutch control for the electric rear axle (DCC). The code is stored when the internal communication is disturbed or missing, or when communication between the IEM and the DCC is disturbed. The fault is only checked once the test has started at ignition on.

Mögliche Ursachen

CAN communication between the IEM and the clutch controller for the electric rear axle (DCC) is faulty
Software fault in the clutch control for the electric rear axle (DCC)
The clutch in the electric rear axle ERAD has mechanical damage
Software error in the electric rear axle drive module (IEM)
Internal fault inside the ISC voltage converter

Was Sie tun können

1Read out, note and clear the code, then road test to see whether it returns
2Have a workshop check that the connectors to the IEM and the clutch control are fully engaged and free from corrosion
3Have a workshop with diagnostic equipment check the communication between the IEM and the clutch control and update the software if needed
4If clutch damage is suspected, have a workshop check the clutch in the electric rear axle
5Do not work on the electric rear axle or its high voltage system yourself; have a workshop carry out those checks

Symptome, die Sie bemerken können4

Warning symbol and text message in the display
PURE drive mode disengages by itself or is not available
AWD drive mode disengages by itself or is not available
HYBRID drive mode runs with the combustion engine active all the time or too often

Was der Fehler beeinflussen kann3

With the clutch open, electric propulsion is not possible
With the clutch open, brake energy recovery from the electric rear axle ERAD is not possible
With the clutch closed, vehicle speed is limited

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