System Description: Notes

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

through 20A fuse (No. 24, located in the fuse and fusible link box)
to trailer tow control unit terminal 7.

Ground is supplied

to trailer tow control unit terminal 5, and
to trailer connector terminal 4
through grounds B7 and B19.