You either have 3 or 4 ABS sensors. My 98 has two at the front, one on the back side of each rotor, you'll see a wire going to it. Then one on the back in the top middle of the diff but for a 2000 it may have one sensor at each rear wheel instead of in the diff.

1998 Honda Passport EXL V6 3.2L Auto SOTF 4WD
3" Calmini Lift w/ HD Track Bar, 32x11.5-16 Super Swamper SX, Aisins

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