How do you replace the water pump on 2002 Honda odyssey?

To replace the water pump on a 2002 Honda Odyssey, start by disconnecting the negative battery terminal and draining the coolant. Remove the serpentine belt, then take off the timing belt cover and the timing belt itself to access the water pump. Unbolt the old water pump, clean the mounting surface, and install the new pump with a new gasket. Reassemble everything in reverse order, refill the coolant, and run the engine to check for leaks.