Nissan Pathfinder (2005 year). Instruction — part 94
POWER DOOR LOCK SYSTEM
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2005 Pathfinder
Front Door Lock Assembly LH (Key Cylinder Switch) Check
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1.
CHECK DOOR KEY CYLINDER SWITCH LH
With CONSULT-II
Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode in CONSULT–II. Refer to
.
●
When key inserted in front key cylinder is turned to LOCK:
●
When key inserted in front key cylinder is turned to UNLOCK:
Without CONSULT-II
Check voltage between BCM connector M18 terminals 7, 8 and
ground.
OK or NG
OK
>> Front door lock assembly LH (key cylinder switch) signal is OK.
NG
>> GO TO 2.
2.
CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CIRCUIT
1.
Turn ignition switch off.
2.
Disconnect front door lock assembly LH (key cylinder switch).
3.
Check continuity between front door lock assembly LH (key cyl-
inder switch) connector terminals 3, 4 and 5.
OK or NG
OK
>> Check the following.
●
Front door lock assembly LH (key cylinder switch)
ground circuit.
●
Harness for open or short between BCM and front
door lock assembly LH (key cylinder switch).
NG
>> Replace front door lock assembly LH (key cylinder switch). Refer to
.
KEY CYL LK-SW
: ON
KEY CYL UN-SW
: ON
LIIA0188E
Connector
Terminals (Wire
color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M18
7
Ground
Neutral/Lock
5
Unlock
0
8
Neutral/Unlock
5
Lock
0
WIIA0457E
Terminals
Condition
Continuity
4 – 5
Key is turned to LOCK.
Yes
3 – 4
Key is turned to UNLOCK.
Yes
WIIA0458E
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REMOTE KEYLESS ENTRY SYSTEM
2005 Pathfinder
REMOTE KEYLESS ENTRY SYSTEM
PFP:28596
Component Parts and Harness Connector Location
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WIIA0441E
REMOTE KEYLESS ENTRY SYSTEM
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2005 Pathfinder
System Description
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INPUTS
Power is supplied at all times
●
to BCM (body control module) terminal 70
●
through 50A fusible link (letter g , located in the fuse and fusible link box).
●
to BCM terminal 57
●
through 10A fuse [No. 18, located in the fuse block (J/B)].
When the key switch is ON, power is supplied
●
to BCM terminal 37
●
through key switch terminals 1 and 2
●
through 10A fuse (No. 25, located in the fuse and fusible link box).
When the ignition switch is ACC or ON, power is supplied
●
to BCM terminal 11
●
through 10A fuse [No. 4, located in the fuse block (J/B)].
When the ignition switch is ON or START, power is supplied
●
to BCM terminal 38
●
through 10A fuse [No. 1, located in the fuse block (J/B)].
When the front door switch LH is ON (door is OPEN), ground is supplied
●
to BCM terminal 47
●
through front door switch LH terminal 2
●
to front door switch LH case ground.
When the front door switch RH is ON (door is OPEN), ground is supplied
●
to BCM terminal 12
●
through front door switch RH terminal 2
●
to front door switch RH case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied
●
to BCM terminal 48
●
through rear door switch LH terminal 2
●
to rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied
●
to BCM terminal 13
●
through rear door switch RH terminal 2
●
to rear door switch RH case ground.
When the back door switch is ON (door is OPEN), ground is supplied
●
to BCM terminal 43
●
through back door switch terminal 3,
●
through back door switch terminal 1,
●
to body grounds D406 and D504.
Keyfob signal is inputted to BCM from the remote keyless entry receiver.
The remote keyless entry system controls operation of the
●
power door lock
●
interior lamp and ignition keyhole illumination
●
panic alarm
●
hazard and horn reminder
●
auto door lock operation
OPERATED PROCEDURE
●
When the keyfob is operated, the signal from the keyfob is sent and the remote keyless entry receiver
receives the signal and sends it to the BCM. The BCM only locks/unlocks the doors if the ID number
matches. (Remote control entry functions)
BL-42
REMOTE KEYLESS ENTRY SYSTEM
2005 Pathfinder
●
Using the keyfob, the transmitter sends radio waves to the remote keyless entry receiver, which then
sends the received waves to the BCM. Only if the ID number matches does the BCM lock/unlock the
doors. (Remote control door function)
●
Unless the key is inserted into the ignition key cylinder or one of the doors is opened within 1 minute after
the UNLOCK switch on the keyfob is pressed, all the doors are automatically locked. (Auto lock function)
●
When a door is locked or unlocked, the vehicle turn signal lamps flash and the horn sounds to verify oper-
ation. (Active check function)
●
When the key is in the ignition key cylinder (when the key switch is ON) and one of the doors is open, the
door lock function does not work even when the door lock is operated with the keyfob.
●
Keyfob ID set up is available.
●
If a keyfob is lost, a new keyfob can be set up. A maximum of 5 IDs can be set up simultaneously.
Remote Control Entry Functions
Operation Description
●
When a button on the keyfob is operated, the signal is sent from the keyfob and received by the keyless
remote entry receiver.
●
The received signal is sent to the BCM and compared with the registered ID number.
●
If the ID number matches, the BCM uses communication to send the lock/unlock signal to each door lock
actuator.
●
When the door lock actuators receive this communication, each operates to lock/unlock its door.
Remote control entry operation conditions
Auto Lock Function
Operation Description
●
Unless the key is inserted into the ignition key cylinder, one of the doors is opened, or the keyfob is oper-
ated within 1 minute after a door lock is unlocked by keyfob operation, all the doors are automatically
locked.
The 1 minute timer count is executed by the BCM and after 1 minute, the BCM sends the lock signal to all
doors.
Lock operations are the same as for the remote control entry function.
Active Check Function
Operation Description
When a door is locked or unlocked by keyfob operation, the vehicle turn signals flash and the horn sounds to
verify operation.
●
When a button on the keyfob is operated, the signal is sent from the remote controller and received by the
keyless remote entry receiver.
●
The received signal is sent to the BCM and compared with the registered ID number.
●
If the ID number matches, the BCM uses communication to send the turn signal flashing and horn signal
to the IPDM E/R.
●
The IPDM E/R flashes the turn signal lamps and sounds the horn for each keyfob operation.
Operating function of hazard and horn reminder
Hazard and Horn Reminder
BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN H line and CAN L line).
Keyfob operation
Operation condition
Door lock operation (locking)
●
With key removed (key switch: OFF)
●
Closing all doors (door switch: OFF)
Door lock operation (unlocking)
With key removed (key switch: OFF)
C mode
S mode
Keyfob operation
Lock
Unlock
Lock
Unlock
Hazard warning lamp
flash
Twice
Once
Twice
—
Horn sound
Once
—
—
—
REMOTE KEYLESS ENTRY SYSTEM
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2005 Pathfinder
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
Operating function of hazard and horn reminder
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “WORK SUPPORT” mode in “MULTI ANSWER BACK SET".
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the keyfob for more than 2 seconds at the same time, the
hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Interior Lamp and Ignition Keyhole Illumination Operation
When the following input signals are both supplied:
●
all door switches are in the OFF position. (when all the doors are closed);
●
interior lamp switch is in DOOR position.
Remote keyless entry system turns on interior lamp and ignition keyhole illumination (for 30 seconds) with
input of UNLOCK signal from keyfob.
For detailed description, refer to
LT-132, "ROOM LAMP TIMER OPERATION"
.
Panic Alarm Operation
When key switch is OFF (when ignition key is not inserted in key cylinder), remote keyless entry system turns
on and off horn and headlamp intermittently with input of PANIC ALARM signal from keyfob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from keyfob.
C mode
S mode
Remote controller
operation
Lock
Unlock
Lock
Unlock
Hazard warning lamp
flash
Twice
Once
Twice
—
Horn sound
Once
—
—
—
SEL153WA
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REMOTE KEYLESS ENTRY SYSTEM
2005 Pathfinder
CAN Communication System Description
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Refer to
.
REMOTE KEYLESS ENTRY SYSTEM
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2005 Pathfinder
Schematic
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WIWA0542E
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REMOTE KEYLESS ENTRY SYSTEM
2005 Pathfinder
Wiring Diagram — KEYLES —
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WIWA0543E
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