VOLVO
IGM-U300083 - Control Module. Bus Signal / Message Failures. Value of signal protection calculation incorrect
System
Unknown System / Manufacturer Specific
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The high voltage generator control module (IGM) has reacted too slowly to the engine control module's (ECM) request to reduce engine torque. The code is stored when this happens, and
Possible causes
- A software fault in the control module
- A fault inside the voltage converter ISC
What you can do
- 1Read and clear the code, then road test the car to see whether it comes back
- 2Have a workshop check that the relevant fuses are intact
- 3Have a workshop check the control module software and whether the latest version should be installed
- 4The high voltage system may only be handled by qualified personnel, so have a workshop do all work on it
Symptoms you may notice5
- Warning symbol and text message in the display
- The generator and charge regulator cause power supply problems
- The high voltage battery charges poorly, is discharged, or does not charge while driving
- Drive modes SAVE and AWD disengage automatically or cannot be selected
- HYBRID mode often or always has the combustion engine active
What the fault can affect1
- The high voltage battery cannot be charged by the combustion engine
General guidance for car owners. Diagnosis on the car can point to a different cause.