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

to BCM terminal 14
through driver side door switch terminal 1
through driver side door switch case ground.

When the driver side door switch is ON (door is OPEN), ground is supplied (with navigation system)

to combination meter terminal 7
through driver side door switch terminal 1
through driver side door switch case ground.

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

to BCM terminal 10
through passenger side door switch terminal 1
through passenger side door switch case ground.

When the passenger side door switch is ON (door is OPEN), ground is supplied (with navigation system)

to BCM terminal 6
through passenger side door switch terminal 1
through passenger side door switch case ground.

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
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 12

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

to CPU of power window sub-switch
through power window sub-switch (door lock and unlock switch) terminal 11
through grounds M30 and M66.

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

to BCM terminal 74
through power window sub-switch (door lock and unlock switch) terminal 16.

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

to power window main switch (door lock and unlock switch) terminal 6
through door key cylinder switch terminal 1 and 5
through grounds M30 and M66.

Then door key cylinder switch operation signal is supplied

to BCM terminal 74
through power window main switch (door lock and unlock switch) terminal 12.

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

to power window main switch (door lock and unlock switch) terminal 7
through door key cylinder switch terminal 5 and 6
through grounds M30 and M66.

Then door key cylinder switch operation signal is supplied

to BCM terminal 74
through power window main switch (door lock and unlock switch) terminal 12.
BCM is connected to power window main switch (door lock and unlock switch) and power window sub-switch (door lock and unlock switch) as serial link.