VOLVO
IEM-B200715 - Insulated Gate Bipolar Transistor Temperature Sensor. General Electrical Failures. Circuit short to battery or open
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 code concerns a temperature sensor inside the electric rear axle drive control module (IEM). The signal from one or more of these sensors is too high, which may correspond to a short to supply voltage or an open circuit in the sensor. The fault is set with the ignition on once the control module's test has started. Electric propulsion is then not possible.
Possible causes
- Damaged temperature sensor inside the IEM
- Fault inside the voltage converter (ISC)
What you can do
- 1If you have a diagnostic tool: read the IEM temperature values in live data and see whether any of them stays constantly high
- 2Have a workshop check the electric rear axle drive control module and the sensors inside it. High voltage systems may only be handled by qualified personnel
- 3Do not carry out any work on the high voltage system yourself
- 4After the repair, read out the fault codes and check that the code is not stored again
Symptoms you may notice4
- Warning window with a warning symbol and text message
- Drive mode PURE disengages automatically or is unavailable
- Drive mode AWD disengages automatically or is unavailable
- Drive mode HYBRID: the combustion engine runs all the time or too often
What the fault can affect2
- Electric propulsion is not possible
- Brake energy regeneration from the electric rear axle is not possible
General guidance for car owners. Diagnosis on the car can point to a different cause.