thomaskrueger7
XC90 Fault Memory Lock Active Error
Summary of the thread
A 2017 Volvo XC90 displayed a 'Fault memory lock active' error, indicating an error stored in the system's memory. The issue was suspected to be related to undervoltage, potentially caused by the battery. It was advised to have the vehicle diagnosed by a workshop, where fault codes were cleared, resolving the issue.
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4 comment(s)
thomaskrueger7 (community.author)
Battery seems fine. Is it something I should worry about or can I drive with it?
hanshofmann1
If it's the same issue I experienced, it's a computer system thing. I wouldn't ignore it. I'd recommend having a workshop take a look. They ran diagnostics and cleared some fault codes.
thomaskrueger7 (community.author)
Turns out it was indeed undervoltage. Had the car diagnosed and the fault codes cleared. Cost me 240€. Appreciate the help!
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VOLVO
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XC90
hanshofmann1
I had something similar with my XC90. Sounds like undervoltage might be the culprit. Have you checked the battery?