VOLVO
IGM-B200919 - Insulated Gate Bipolar Transistor. General Electrical Failures. Circuit current above threshold
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?
Although the code is named high current, it applies when the high voltage system's voltage level does not change when the control module tries to check it. The level stays still or moves only within a narrow band. The fault is only checked once the vehicle is in driving position, meaning the car has been cranked and either the electric or the combustion engine has started.
Possible causes
- Internal fault inside the ISC voltage converter
What you can do
- 1Clear the code, start the car and see whether it returns
- 2Have a workshop check the ISC voltage converter
- 3Do not work on the high voltage system yourself; have a workshop carry out the checks
Symptoms you may notice5
- 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
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.