VOLVO
IGM-C200D84 - Motor Rotation Angle Sensor. Bus Signal / Message Failures. Signal below allowable range
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) monitors the internal components and functions of the starter generator ISG. The code is stored when the speed signal from the ISG indicates that it is rotating backwards, or when the speed is below a limit. The fault is only checked once the combustion engine is running.
Possible causes
- Calibration not completed
- Calibration has failed
- Calibration or parameter memory is incorrect, incompatible or not programmed
- The position sensor on the ISG is installed incorrectly
What you can do
- 1Read out and note the code, clear it and road test with the engine running
- 2Have a workshop check the calibration of the ISG and that the calibration memory is correctly programmed
- 3Have a workshop check that the position sensor on the ISG is fitted correctly
- 4The high voltage system may only be handled by a workshop; do not work on it yourself
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.