Yes but cheap and dirty. You don't need much current for this... easy to calc from J1850 spec. Remembering if I can, I bias the zener with ~5ma or so suggests a 30ma is still overkill
I am sure this will work but if any troubles... Just reduce the value of the resistor (increase bias current) bias some. 400ohm would double the bias to about 10ma. From the curve you should be well in range.
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