System Description: Notes

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

Power is supplied at all times

to BCM terminal 55
through 50A fusible link (letter F , located in the fuse and fusible link box)
to BCM terminal 42
through 10A fuse [No. 18, located in the fuse block (J/B)]
to key switch terminal 3
through 10A fuse [No. 21, located in the fuse block (J/B)]

When key switch is ON (key is inserted in ignition key cylinder), power is supplied

to BCM terminal 37
through key switch terminal 4.

Ground is supplied

to BCM terminal 52
through body grounds M14 and M78.

When front door switch (driver side) is ON (door is OPEN), ground is supplied

to BCM terminal 62
through front door switch (driver side) terminals 4 and 5
through body grounds M14 and M78.

When front door switch (passenger side) is ON (door is OPEN), ground is supplied

to BCM terminal 12
through front door switch (passenger side) terminals 4 and 5
through body grounds M14 and M78.

When rear door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 63
through rear door switch LH terminals 4 and 5
through body grounds B7 and B20.

When rear door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 13
through rear door switch RH terminals 4 and 5
through body grounds B105 and B116.

When back door switch is ON (back door is OPEN), ground is supplied

to BCM terminal 58
through back door switch terminals 1 and 3
through body grounds B7 and B20.

When door is locked and unlocked with power window main switch (door lock and unlock switch), ground is supplied

to CPU of power window main switch
through power window main switch (door lock and unlock switch) terminal 17
through body grounds M14 and M78.

Then power window main switch (door lock and unlock switch) operation signal is supplied.

to BCM terminal 22
through power window main switch (door lock and unlock switch) terminal 14.

When door is locked and unlocked with front power window switch (passenger side) (door lock and unlock switch), ground is supplied

to CPU of front power window switch (passenger side)
through front power window switch (passenger side) (door lock and unlock switch) terminal 11
through body grounds M14 and M78.

Then front power window switch (passenger side) (door lock and unlock switch) operation signal is supplied

to BCM terminal 22
through front power window switch (passenger side) (door lock and unlock switch) terminal 16.

When door is locked with door key cylinder switch, ground is supplied

to power window main switch (door lock and unlock switch) terminal 4
through door key cylinder switch terminals 1 and 5
through body grounds M14 and M78.

Then door key cylinder switch operation signal (lock) is supplied

to BCM terminal 22
through power window main switch (door lock and unlock switch) terminal 14.

When the door is unlocked with door key cylinder switch, ground is supplied

to power window main switch (door lock and unlock switch) terminal 6
through front door key cylinder switch (driver side) terminal 6 and 5
through grounds M14 and M78.

Then door key cylinder switch operation signal (unlock) is supplied

to BCM terminal 22
through power window main switch (door lock and unlock switch) terminal 14.

BCM is connected to power window main switch and front power window switch (passenger side) as serial link.