VOLVO
IEM-U1A4B97 - Control Module Processor B. Component Failures. Component or system operation obstructed or blocked
System
Ukjent system / Merkespesifikk
Volvo-modeller feilkoden gjelder for
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1 modellV60 (2011–)
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Hva betyr feilkoden?
Although the code is named blocked, it relates to an internal fault in the microprocessor of the electric rear axle drive module (IEM). The fault is only checked once the test has started at ignition on, and the code is stored when the conditions are met.
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, start the car and see whether it returns
- 2Have a workshop install new software for the control module if one is available
- 3If the fault remains, 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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