Near the battery. If the black plastic panel is still installed, you need to remove it, then you will see it, look for the clear plastic "door" on top with the fuse or fuses underneath. Check the fuse first. The onl thing that sounds related to the OVP is the ABS light, and that could just as easily be a wheel speed sensor. The blown OVP will cause cold start problems as well.
Gilly

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