System Description: Notes

WARNING: This page is about a different car, the 2003 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 7
through 50A fusible link [letter F , 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 62
through key switch terminal 4.

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

to BCM terminal 14 and unified meter and A/C amp. terminal 8
through front door switch (driver side) terminals 4 and 5
through grounds M14 and M78.

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

to BCM terminal 10 and unified meter and A/C amp. terminal 7
through front door switch (passenger side) terminals 4 and 5
through grounds M14 and M78.

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

to unified meter and A/C amp. terminal 18
through rear door switch LH terminals 4 and 5
through grounds B7 and B20.

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

to unified meter and A/C amp. terminal 17
through rear door switch RH terminals 4 and 5
through grounds B105 and B116.

Combination meter send door open signal to BCM with CAN communication system. When the back door switch is ON (back door is OPEN), ground is supplied

to BCM terminal 18
through back door switch terminals 1 and 3
through grounds B7 and B20.

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 17
through grounds M14 and M78.

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 14.

When the 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 grounds M14 and M78.

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

to BCM terminal 74
through front power window switch (passenger side) (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 4
through door key cylinder switch terminals 1 and 5
through grounds M14 and M78.

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

to BCM terminal 74
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 74
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.