Yours probably has a Multiplex system not too dissimilar to my ‘06 Monterey. Check out my attached legend and see if your second module has a failed #10 or other mini fuse, especially if the pump isn’t activated by any of the rig’s several switches. But also know that pumps commonly fail at the motor itself; so if the fuse is good then break out a multimeter and with a switch on start checking, to the extent accessible, for voltage backward from the pump.
Your power utility boxes (110v house breakers and 12v fuses) may be elsewhere, but ours is behind a bathroom cabinet over the john.
Joel
