System Description: Notes

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

to BCM terminal 7
through 50A fusible link (letter F , located in the fuse and fusible link box).
to key switch terminal 2
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 62
through key switch terminal 1.

When the 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 15 (with interruption detection function for all door window), or
through power window main switch (door lock and unlock switch) terminal 5 (except with interruption detection function for all door window)
through grounds M30 and M66.

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

to BCM terminal 74
through power window main switch (door lock and unlock switch) terminal 9 (with interruption detection function for all door window), or
through power window main switch (door lock and unlock switch) terminal 8 (except with interruption detection function for all door window).

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

to CPU of power window sub-switch
through power window sub-switch (front passenger side) (door lock and unlock switch) terminal 7
through grounds M30 and M66.

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

to BCM terminal 74
through power window sub-switch (front passenger side) (door lock and unlock switch) terminal 11.

When the door is locked with front door key cylinder switch driver side, ground is supplied

to power window main switch (door lock and unlock switch) terminal 6
through front door key cylinder switch (driver side) terminals 1 and 2
through grounds M30 and M66.

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

to BCM terminal 74
through power window main switch (door lock and unlock switch) terminal 9 (with interruption detection function for all door window), or
through power window main switch (door lock and unlock switch) terminal 8 (except with interruption detection function for all door window).

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

to power window main switch (door lock and unlock switch) terminal 5 (with interruption detection function for all door window), or
to power window main switch (door lock and unlock switch) terminal 19 (except with interruption detection function for all door window)
through front door key cylinder switch (driver side) terminal 3 and 2
through grounds M30 and M66.

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

to BCM terminal 74
through power window main switch (door lock and unlock switch) terminal 9 (with interruption detection function for all door window), or
through power window main switch (door lock and unlock switch) terminal 8 (except with interruption detection function for all door window).

BCM is connected to power window main switch and power window sub-switch as serial link.