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Home >> Infiniti >> 2009 >> M35x AWD V6-3.5L (VQ35HR) >> Repair and Diagnosis >> Body and Frame >> Locks >> Power Locks >> Description and Operation >> System Description

System Description





POWER DOOR LOCK SYSTEM


System Description

Power is supplied at all times
- through 50A fusible link (letter F, located in the fuse and fusible link box).
- to BCM terminal 55, � through 10A fuse [No. 21, located in the fuse block (J/B)]
- to BCM terminal 42.
When ignition switch is in ACC or ON position, power is supplied
- through 10A fuse [No. 6, located in fuse block (J/B)]
- to BCM terminal 11.
When ignition switch is in ON or START position, power is supplied
- through 15A fuse [No. 1, located in fuse block (J/B)]
- to BCM terminal 38.
Ground is supplied
- to BCM terminal 52
- through body grounds M16 and M70.
When the door is locked or 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 M16 and M70.
Then power window main switch (door lock and unlock switch) operation signal is sent.
- to BCM terminal 22
- from power window main switch (door lock and unlock switch) terminal 14
When the door is locked or unlocked 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 11
- through grounds M16 and M70.
Then power window sub-switch (front passenger side) (door lock and unlock switch) operation signal is sent
- to BCM terminal 22
- from power window sub-switch (front passenger side) (door lock and unlock switch) terminal 16.
When the door is locked with front door key cylinder switch (driver side), ground is supplied
- to CPU of power window main switch
- through power window main switch (door lock and unlock switch) terminal 4
- through front door key cylinder switch (driver side) terminals 6 and 4
- through grounds M16 and M70.
Then front door key cylinder switch (driver side) operation signal (lock) is sent
- to BCM terminal 22
- from power window main switch (door lock and unlock switch) terminal 14
When the door is unlocked with front door key cylinder switch (driver side), ground is supplied
- to CPU of power window main switch
- through power window main switch (door lock and unlock switch) terminal 6
- through front door key cylinder switch (driver side) terminals 5 and 4
- through grounds M16 and M70.
Then front door key cylinder switch (driver side) operation signal (unlock) is sent
- to BCM terminal 22
- from power window main switch (door lock and unlock switch) terminal 14
BCM is connected to power window main switch and power window sub-switch as serial link.

DOOR LOCK ACTUATOR OPERATION
When door is locked with door lock and unlock switch, all door lock actuator is locked. Ground is supplied
- to BCM terminal 50
- through each door lock actuator terminals 2 and 1
- through BCM terminals 44 (driver side), 70 (passenger side) and 51 (rear door).
When door is unlocked with door lock and unlock switch, all door lock actuator is unlocked. Ground is supplied
- to BCM terminals 44 (driver side), 70 (passenger side) and 51 (rear door)
- through each door lock actuator terminals 1 and 2
- through BCM terminal 50.

FUEL LID OPERATION
When door is locked with door lock and unlock switch, fuel lid lock actuator is locked. Ground is supplied
- to BCM terminal 69
- through fuel lid lock actuator terminals 2 and 1
- through BCM terminal 44.
When door is unlocked with door lock and unlock switch, fuel lid lock actuator is unlocked. Ground is supplied
- to BCM terminal 44
- through fuel lid lock actuator terminals 1 and 2
- through BCM terminal 69.
In this condition, fuel lid can be opened if it is pushed.

OUTLINE

Functions Available by Operating the Door Lock and Unlock Switches on Driver's Door and Passenger's Door
- Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and fuel lid lock actuator are locked.
- Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors and fuel lid lock actuator are unlocked.

Functions Available by Operating the Key Cylinder Switch on Driver's Door
- Interlocked with the locking operation of door key cylinder, door lock actuators of all doors and fuel lid lock actuator are locked.

Selective Unlock Operation
- When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.
- When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock actuators on all doors are unlocked.
Select unlock operation mode can be changed using "SELECTIVE UNLOCK FUNCTION" mode in "WORK
SUPPORT". Refer to CONSULT-III Functions (INTELLIGENT KEY).

Key Reminder Door System
Refer to System Description.

AUTOMATIC DOOR LOCK/UNLOCK FUNCTION (LOCK OPERATION)

Vehicle Speed Sensing Auto Door Lock
All doors are locked when the vehicle speed reaches 15 MPH (24 km/h) or more.
BCM outputs the lock signal to all door lock actuators when it detects that the ignition switch is turned ON, all doors are closed and the vehicle speed received from the unified meter and A/C amp. via CAN communication becomes 24 km/h (15 miles) or more.

Setting change of Automatic Door Lock/Unlock Function
The automatic door lock function ON/OFF can be switched by performing the following operation.
1. Close all doors (door switch OFF)
2. Turn ignition switch ON
3. Press and hold the door lock and unlock switch for 5 seconds or more in the lock direction within 20 seconds after turning the ignition switch ON.
4. The switching is completed when the hazard lamp blinks.

OFF - ON : 2 blinks
ON - OFF : 1 blink

AUTOMATIC DOOR LOCK/UNLOCK FUNCTION (UNLOCK OPERATION)

IGN OFF Interlock Door Unlock
All doors are unlocked when the power supply position is changed from ON to OFF.
BCM outputs the unlock signal to all door lock actuators when it detects that the power supply position is changed from ignition switch ON to OFF.

Setting change of Automatic Door Lock/Unlock Function
The automatic door unlock function ON/OFF can be switched by performing the following operation.
1. Close all doors below (door switch OFF)
2. Turn ignition switch ON
3. Press and hold the door lock and unlock switch for 5 seconds or more in the unlock direction within 20 seconds after turning the power supply position ON.
4. The switching is completed when the hazard lamp blinks.

OFF - ON : 2 blinks
ON - OFF : 1 blink
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