take a turn - also not, because this phrase mostly means doing what the guy before you did; giving it a try. Taking a left or right turn is secondary and not necessarily implied if side isn't specified.
deflect - covers only the transitive meaning of the verb, as in "skrenuti tok reke" - "diverting the flow of the river", but not the most frequent case when one just changes direction
divert - is almost wrong; it also covers only the transitive case, and even that partially; diverting a piece of some whole to a different use, or diverting one's attention; the most common usage is not covered at all
switch - works only in the case of a railway (railway switch is called "skretnica"); for everything else, "switch" is "prekidač" - discontinuer, i.e. device to disconnect an electric circuit; as a verb, "to switch" means 'replace', 'turn on/off', 'whip' and 'skrenuti' is distant fourth.
shunt - all the available meanings are technical - to connect in parallel, to maneuver (around something)... again, 'skrenuti' is distant fourth.