The control board started making a noise - the bake element relay was chattering. I traced the problem to the oven temp probe ( it read 1100 Ohms on meter - much too high ). The most trouble was getting the connector on the new part through the insulation on the outside of the oven wall. Next I put Molex Mini-fit Jr pins & housing on wire harness to match new part. The rest was easy - just button things up after a quick test.
Extra tools - wire cutter, wire stripper, crimp tool