Was bedeutet der Fehlercode IGM-U1A4B82?

Diagnose und Fehlercodedefinition für IGM-U1A4B82 (Volvo V60 (2011–), Volvo V60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

IGM-U1A4B82 - Control Module Processor B. Bus Signal / Message Failures. Alive / sequence counter incorrect / not updated

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?

Although the code is named sequence counter, it applies to an internal fault in the microprocessor of the high voltage generator control module (IGM). The fault is only checked once the combustion engine is running, and the code is stored when the conditions are met.

Mögliche Ursachen

Software fault in the IGM
Internal fault inside the ISC voltage converter

Was Sie tun können

1Read out and note the code, clear it and start the car to see whether it returns
2Have a workshop check that the IGM has current software and install new software if needed
3If the fault remains, have a workshop look at the ISC voltage converter
4The high voltage system may only be handled by a workshop; do not work on it yourself

Symptome, die Sie bemerken können5

Warning symbol and text message in the display
Warning about power supply problems from the alternator and charge regulator
Charging of the high voltage battery while driving is absent, reduced or not working correctly
High voltage battery is discharged or charges poorly
HYBRID drive mode: the combustion engine is active all the time or too often

Was der Fehler beeinflussen kann1

The high voltage battery cannot be charged by the combustion engine

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