VOLVO
IEM-U1A4B93 - Control Module Processor B. Component Failures. No operation
System
Ukjent system / Merkespesifikk
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
1 modellV60 (2011–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The electric rear axle drive module (IEM) monitors its internal components and its internal communication. The code is stored when the internal communication is disturbed or missing. The fault is only checked once the test has started at ignition on.
Mulige årsaker
- Software error in the electric rear axle drive module (IEM)
- Internal fault inside the ISC voltage converter
Hva du kan gjøre
- 1Read out, clear the code and start the car to see whether it returns
- 2Have a workshop check whether new software is available for the control module and install it if needed
- 3If the fault returns after the software update, have a workshop check the control module and the voltage conversion unit ISC
- 4Do not work on the electric rear axle or its high voltage system yourself; have a workshop carry out those checks
Symptomer du kan merke4
- 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
Hva feilen kan påvirke2
- Electric propulsion is not possible
- Brake energy regeneration from the electric rear axle ERAD is not possible
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