VOLVO
IEM-U201107 - Motor. General Failure Information. Mechanical Failures
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 module (IEM) keeps watch over the electric rear axle ERAD. The code is stored when ERAD runs at too high a speed at high road speed while driving in gear D or R. The fault is only checked once the test has started during driving.
Possible causes
- Software error in the electric rear axle drive module (IEM)
- The electric rear axle ERAD is damaged
- The DCC clutch controller for the electric rear axle has stuck in the closed position
- Clutch control for the electric rear axle (DCC) is damaged
- The clutch is mechanically damaged
What you can do
- 1Read out, clear the code and road test in D or R, including at higher speed, to see whether it returns
- 2Have a workshop check whether new software is available for the IEM and install it if needed
- 3Have a workshop with diagnostic equipment check the clutch control (DCC) and the clutch in ERAD, since the DCC may have jammed in the closed position or be damaged
- 4Do not work on the electric rear axle or its high voltage system yourself; have a workshop carry out those checks
Symptoms you may notice4
- Warning symbol and text message in the display
- PURE drive mode disengages by itself or is not available
- AWD drive mode disengages by itself or is not available
- HYBRID drive mode runs with the combustion engine active all the time or too often
What the fault can affect2
- Electric propulsion is not possible
- Brake energy regeneration from the electric rear axle ERAD is not possible
General guidance for car owners. Diagnosis on the car can point to a different cause.