Location and replacement of crank sensor on honda odyssey 1999

SOURCE: How do you replace the radiator coolant on a 2005 Honda Odyssey

hi,
Try looking here for general removal/replacement info... http://autorepair.about.com/library/a/1i/bl830i.htm

SOURCE: 2003 Honda Odyssey Brake light replacement

open the rear hatch. Between the tail light housing and the rear hatch opening there is a trim strip with two flush fitted flap doors. Insert a small straight blade screwdriver into the small slot on the tail light side of the flap. Pry gently inboard and the small flap will open (the hinge side of the flap is on the side of the rear hatch opening.) Now you can remove the screws that hold the tail lamp assembly in place. Finally, there is still a "spear point" clip that fits into a socket near the front outboard corner of the assembly. Gently pry with a tape wrapped screwdriver (avoids scratches) and force the assembly straight back. The clip should release and free the assembly so you can change the bulb(s).

SOURCE: 2005 Honda Odyssey Fuse Box

If you can't figure it out from the owners manual just call the dealership. Unfortunately, the aftermarket maintenance manuals are not for sale yet.

SOURCE: Brake Fluid Sensor

I believe it is a float in the master cylinder. If it's on, check your barke fluid level. Add if needed.
The reason for low fluid is that the front disc brakes are wearing down causing the brake caliper to move out which lowers the fluid level in the reservoir. So, also check your front brakes for wear.

God luck.

Please rate as fixya if this solves your issue. Thanks

SOURCE: 1999 honda odyssey won't start, has power but won't start.

It's the neutral safety switch. Have your mechanic adjust it, or replace it if it's bad. For now try starting it in neutral instead of park or even try pushing the shifter up all the way (in park) while you turn the key.