Power Supply And Ground

WARNING: This page is about a different car, the 2005 Nissan Quest. 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. 19, located in the fuse block (J/B)]
To key switch terminal 1, and
Through 15A fuse [No. 3, located in the fuse block (J/B)]
To BCM terminal 42, and
Through 50A fusible link (letter j , located in the fuse and fusible link box)
To BCM terminal 55.

When the key is inserted in key switch, power is supplied

Through the key switch terminal 2
To BCM terminal 37.

With the ignition switch in the ON or START position, power is supplied

Through 10A fuse [No. 16, located in the fuse block (J/B)]
To BCM terminal 38.

Ground is supplied

To BCM terminal 52
Through grounds M57, M61 and M79.

When the driver side door is opened, ground is supplied

To BCM terminal 62
Through case ground of front door switch LH.

When the passenger side door is opened, ground is supplied

To BCM terminal 12
Through case ground of front door switch RH.

When the sliding door LH is opened, ground is supplied

To BCM terminal 63
Through case ground of sliding door switch LH.

When the sliding door RH is opened, ground is supplied

To BCM terminal 13
Through case ground of sliding door switch RH.

When the liftgate is opened, ground is supplied

To BCM terminal 58
Through back door switch terminal 1 (without power back door auto closure system) or back door latch (door ajar switch) terminal 7 (with power back door auto closure system)
Through back door switch terminal 3 (without power back door auto closure system) or back door latch (door ajar switch) terminal 8 (with power back door auto closure system)
Through grounds D403 and D404.

When the driver or passenger side door is unlocked by the door lock and unlock switch, BCM receives a ground signal

To BCM terminal 22
To main power window and door lock/unlock switch terminal 14 (with rear power vent windows) or terminal 12 (without rear power vent windows) and power window and door lock/unlock switch RH terminal 16
Through grounds M57, M61 and M79.

When the driver side door is unlocked by the key, the BCM receives a ground signal

To BCM terminal 22
Through main power window and door lock/unlock switch terminal 14 (with rear power vent windows) or terminal 12 (without rear power vent windows)
Through main power window and door lock/unlock switch terminal 6 (with rear power vent windows) or terminal 7 (without rear power vent windows)
Through front door key cylinder switch LH terminal 6
Through front door key cylinder switch LH terminal 5
Through grounds M57, M61 and M79.

When a signal, or combination of signals is received by BCM, ground is supplied

Through BCM terminal 48
To door mirror (puddle lamp) LH and RH terminal 2 (if equipped)
To running board lamps pre-wiring terminal 1
To lamps on demand switch terminal 3
Through lamps on demand switch terminal 4
To room/map lamps terminal 2
To personal lamps terminal 2 (without rear roof console assembly) or terminal 3 (with rear roof console assembly).

With power and ground supplied, the lamps illuminate.