kurtfire5
Skoda Scala Diesel Fault Memory Lock Active Error
4 comment(s)
kurtfire5 (Author)
Battery seems okay. But how would voltage fluctuations cause a 'fault memory lock active' error? Seems extreme.
williamghost23
The control unit probably detected the undervoltage and, as a failsafe, locked the fault memory to prevent corruption. These systems are complex. I bet they will perform auto repair and remove the fault codes. I'd recommend a shop visit; you don't want to risk damaging the ECU.
kurtfire5 (Author)
You were right. Shop visit confirmed undervoltage. Fault codes are now cleared. Cost me 240€ but it's resolved.
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williamghost23
That sounds frustrating. I had a similar problem with my Scala, random errors stored in the memory. Check the battery. These systems are sensitive to voltage fluctuations. Modern diagnostics rely on stable power.