Power Supply And Ground

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

through 15A fuse [No. 52, located in fuse, fusible link and relay block (J/B)]
to rear view camera control unit terminal 2.

When ignition switch is ACC or ON position, power is supplied

through 10A fuse [No. 21, located in fuse block (J/B) No. 1]
to rear view camera control unit terminal 4.

When ignition switch is ON or START position, power is supplied

through 10A fuse [No. 9, located in fuse block (J/B) No. 1]
to back-up lamp relay terminals 2 and 5.

Ground is supplied

to rear view camera control unit terminal 1
through grounds B217 and B256
to rear view camera terminal 2
through grounds B17 and B57.