I suspect what they did was check for codes and there were none? If that is the case, then we have an issue with the pump building pressure.
https://www.2carpros.com/articles/how-to-replace-a-power-steering-pump
You mentioned that this is an electronic power steering pump. We show this as a belt driven pump.
If this is not correct, then you simply need to check power and ground going to the pump and if that is correct then you replace the pump.
https://www.2carpros.com/articles/how-to-check-wiring
If you do have a belt driven pump, then the instructions are below on how to replace it.
Please run through this material and let us know if you have other questions.
Thanks
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Friday, October 1st, 2021 AT 8:05 AM