VOLVO
IEM-B201064 - Electric Machine. Algorithm Based Failures. Signal plausibility failure
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 electric rear axle drive control module (IEM) compares the calculated torque with the power and speed. If they do not agree, the code is set while driving in gear D or R. The causes are lost calibration, a control module that is not calibrated, a software fault, or an internal fault in the voltage converter (ISC). Electric propulsion is then not possible.
Possible causes
- Lost calibration
- The control module is not calibrated
- Software fault in the electric rear axle drive control module (IEM)
- Internal fault in the voltage converter (ISC)
What you can do
- 1Have a workshop calibrate the electric rear axle drive control module and check that the calibration passes. High voltage systems may only be handled by qualified personnel
- 2If you have a diagnostic tool: compare the calculated torque in live data with speed and power during a drive in gear D or R
- 3Have a workshop download new software to the IEM if the fault remains
- 4After the repair, check that the code is not stored again while driving in gear D or R
Symptoms you may notice4
- Text window and warning symbol with a 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.