Give me a minuet to review the thread.
The wires will have to be pulled from the control panel. Open the panel and locate the wires you need to replace. Attach a wire of the same type and gage to the oven end with electricians tape. Tape at minimum 6" of the wires together. If you dont pull the new wire through to the panel it will be a serious hassel to feed one through.
Be sure to mark each wire as to where it goes. Keeping tjhe same color wires helps too. You can get new wire at home depot.
The control panel is the panel that has all of the units controls on it. At the top is a grill looking part. Remove the screws from it and the panel will roll forward for access to the wires.
I must caution you that if you have never rewired an appliance I strongly advise that you let someone that has do the work. You could easily end up causing more damage than good.
We took off the back of the oven. There are two wires to the control unit, one red and one yellow. It appears that the red wire goes to the control on the right when looking at the oven from the front. Which side of the unit does the red wire go on?
How do you get to the control panel, which I presume is in front, behind the oven knobs. How do we open that??