Both the brake sw and the NSS have brought up a power glitch codes..there is only one way thay can do that...by having a connecion failure.
Most likely intermittant.
I would also spin all the fuses in their holders...and check for equal tire sizing/pressure.
If coupled with ABS lamp, I would also suspect the OVP or
a low voltage condition..This is not a diagnosis..it is just verycommon problems/remedies one would find on these systems

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A Dalton