Is this a proper resistance between amplifier power supply mosFET pads?

I was just wondering if this is an acceptable resistance between the gate and source(?), its reading 511 ohms between the two, but that seems pretty low to me, shouldnt it be a couple of K at least?

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I have replaced the drive transistors already, but if this is not a proper resistance, that would indicated that the drive card needs rebuilt correct? This is like my 3rd time repairing an amp so I am just trying to make sure Im heading in the right direction. Thanks for any answers.
 
Since this is a Car Audio amplifier...
Click the little 'Report' button on the bottom left of your post, and ask a moderator to move your post to the Car Audio section.
I believe you will get far better response to your questions there.
And might also be an idea to let people know, What, make and model of amplifier it is.