Nissan Pathfinder (2012 year). Manual — part 436
ILLUMINATION CONTROL SYSTEM
INL-9
< SYSTEM DESCRIPTION >
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ILLUMINATION CONTROL SYSTEM
System Diagram
INFOID:0000000007355222
System Description
INFOID:0000000007355223
The illumination lamps operation is dependent upon the position of the lighting switch (combination switch).
When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM
(body control module) receives input requesting the parking lamps to illuminate. This input is communicated to
the IPDM E/R (intelligent power distribution module engine room) via the CAN communication lines. The CPU
(central processing unit) of the IPDM E/R controls the tail lamp relay coil. When energized, this relay directs
power to the parking and illumination lamps, which then illuminate.
BATTERY SAVER CONTROL
When the lighting switch (combination switch) is in the 1ST or 2ND position and the ignition switch is turned
from ON or ACC to OFF, the battery saver control feature is activated. Under this condition, the illumination
lamps remain illuminated for 15 minutes (early production) or 10 minutes (late production) unless the lighting
switch position is changed. If the lighting switch position is changed, then the illumination lamps are turned off
after a 30 second delay. When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light
system is activated) after illumination lamps have been turned off by the battery saver control, the illumination
lamps illuminate again.
AWLIA1754GB
August 2012
2012 Pathfinder
INL-10
< SYSTEM DESCRIPTION >
ILLUMINATION CONTROL SYSTEM
Component Parts Location
INFOID:0000000007355224
Component Description
INFOID:0000000007355225
1.
IPDM E/R E122, E124
2.
Combination switch (lighting and turn
signal switch) M28
3.
Combination meter M24
4.
Illumination control switch (built into
combination meter)
5.
BCM M18, M20 (view with instrument
panel removed)
WKIA4973E
Part name
Description
BCM
The BCM monitors the lighting switch position with the combina-
tion switch reading function. The BCM requests, via CAN commu-
nication, that the IPDM E/R activate the tail lamp relay.
IPDM E/R
The IPDM E/R activates the tail lamp relay based on inputs re-
ceived from the BCM via the CAN communication network.
Combination meter (illumination control switch)
The illumination control switch is a part of the combination meter.
The combination meter controls illumination intensity by varying
ground to the illumination lamps based on the illumination control
switch position.
Combination switch (lighting and turn signal switch)
The combination switch provides input to the BCM about the light-
ing switch position.
August 2012
2012 Pathfinder
DIAGNOSIS SYSTEM (BCM)
INL-11
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000007830014
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode
Description
Ecu Identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
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Da
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Mo
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A
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W
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Co
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CA
N Diag
Su
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Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
Air conditioner
AIR CONDITIONER
×
Intelligent Key system
INTELLIGENT KEY
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
Panic alarm system
PANIC ALARM
×
August 2012
2012 Pathfinder
INL-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
INT LAMP
INT LAMP : CONSULT Function (BCM - INT LAMP)
INFOID:0000000007830015
DATA MONITOR
* : with Intelligent Key
** : without Intelligent Key
ACTIVE TEST
WORK SUPPORT
Monitor Item [Unit]
Description
IGN ON SW [On/Off]
Indicates condition of ignition switch ON position.
KEY ON SW [On/Off]
Indicates condition of key switch.
DOOR SW-DR [On/Off]
Indicates condition of front door switch LH.
DOOR SW-AS [On/Off]
Indicates condition of front door switch RH.
DOOR SW-RR [On/Off]
Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off]
Indicates condition of rear door switch LH.
BACK DOOR SW [On/Off]
Indicates condition of back door switch.
KEY CYL LK-SW [On/Off]
Indicates condition of lock signal from door key cylinder switch.
KEY CYL UN-SW [On/Off]
Indicates condition of unlock signal from door key cylinder switch.
CDL LOCK SW [On/Off]
Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off]
Indicates condition of unlock signal from door lock and unlock switch.
I-KEY LOCK* [On/Off]
Indicates condition of lock signal from Intelligent Key.
I-KEY UNLOCK* [On/Off]
Indicates condition of unlock signal from Intelligent Key.
KEYLESS LOCK** [On/Off]
Indicates condition of lock signal from keyfob.
KEYLESS UNLOCK** [On/Off]
Indicates condition of unlock signal from keyfob.
Test Item
Description
IGN ILLUM
This test is able to check ignition keyhole illumination operation [Off/On].
INT LAMP
This test is able to check interior room lamp operation [Off/On].
LUGGAGE LAMP TEST
This test is able to check cargo lamp operation [Off/On].
Support Item
Setting
Description
SET I/L D-UNLCK INTCON
Off
Interior room lamp timer function OFF.
On*
Interior room lamp timer function ON.
ROOM LAMP ON TIME SET
MODE7
0 sec.
Sets the interior room lamp gradual brightening time.
MODE6
5 sec.
MODE5
4 sec.
MODE4
3 sec.
MODE3
2 sec.
MODE2*
1 sec.
MODE1
0.5 sec.
August 2012
2012 Pathfinder
DIAGNOSIS SYSTEM (BCM)
INL-13
< SYSTEM DESCRIPTION >
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* : Initial setting
BATTERY SAVER
BATTERY SAVER : CONSULT Function (BCM - BATTERY SAVER)
INFOID:0000000007830016
DATA MONITOR
* : with Intelligent Key
** : without Intelligent Key
ACTIVE TEST
WORK SUPPORT
*: Initial setting
ROOM LAMP OFF TIME SET
MODE7
0 sec.
Sets the interior room lamp gradual dimming time.
MODE6
5 sec.
MODE5
4 sec.
MODE4
3 sec.
MODE3
2 sec.
MODE2*
1 sec.
MODE1
0.5 sec.
Support Item
Setting
Description
Monitor Item [Unit]
Description
IGN ON SW [On/Off]
Indicates condition of ignition switch ON position.
KEY ON SW [On/Off]
Indicates condition of key switch.
DOOR SW-DR [On/Off]
Indicates condition of front door switch LH.
DOOR SW-AS [On/Off]
Indicates condition of front door switch RH.
DOOR SW-RR [On/Off]
Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off]
Indicates condition of rear door switch LH.
BACK DOOR SW [On/Off]
Indicates condition of back door switch.
KEY CYL LK SW [On/Off]
Indicates condition of lock signal from door key cylinder switch.
KEY CYL UN SW [On/Off]
Indicates condition of unlock signal from door key cylinder switch.
CDL LOCK SW [On/Off]
Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off]
Indicates condition of unlock signal from door lock and unlock switch.
I-KEY LOCK* [On/Off]
Indicates condition of lock signal from Intelligent Key.
I-KEY UNLOCK* [On/Off]
Indicates condition of unlock signal from Intelligent Key.
KEYLESS LOCK** [On/Off]
Indicates condition of lock signal from keyfob.
KEYLESS UNLOCK** [On/Off]
Indicates condition of unlock signal from keyfob.
Test item
Description
BATTERY SAVER
This test is able to check battery saver operation [Off/On].
Support Item
Setting
Description
ROOM LAMP TIMER SET
MODE2
60 min
Sets the interior room lamp battery saver timer
operating time.
MODE1*
15 min (early production)
10 min (late production)
August 2012
2012 Pathfinder
INL-14
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis Procedure
INFOID:0000000007830017
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
21 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
Power
source
Condition
Voltage (V) (Ap-
prox.)
(+)
(-)
M18
11
Ground
ACC
power
supply
Ignition
switch
ACC or
ON
Battery voltage
38
Ground
Ignition
power
supply
Ignition
switch ON
or START
Battery voltage
M20
57
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
70
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
LIIA2415E
August 2012
2012 Pathfinder
POWER SUPPLY AND GROUND CIRCUIT
INL-15
< DTC/CIRCUIT DIAGNOSIS >
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Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
August 2012
2012 Pathfinder
INL-16
< DTC/CIRCUIT DIAGNOSIS >
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT
Description
INFOID:0000000007355230
Provides the battery saver output/power supply. Also cuts the power supply when the interior room lamp bat-
tery saver is activating.
Component Function Check
INFOID:0000000007355231
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION
WITH CONSULT
1. Turn ignition switch ON.
2. Turn each interior room lamp ON.
-
Front room/map lamp assembly
-
Vanity lamps (if equipped)
-
Cargo lamp
-
Personal lamp 2nd row (with personal lamp 2nd row)
-
Room lamp 2nd row (without personal lamp 2nd row)
3. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
4. While operating the test item, check that each interior room lamp turns ON/OFF.
Is the inspection result normal?
YES
>> Battery saver output/power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007355232
Regarding Wiring Diagram information, refer to
.
1.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
WITH CONSULT
1. Turn ignition switch ON.
2. Select “BATTERY SAVER” of BCM (BATTERY SAVER) active
test item.
3. While operating the test item, check voltage between BCM con-
nector M20 terminal 56 and ground.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-
BCS-53, "Removal and Installation"
2.
CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
-
BCM M20
-
Ignition keyhole illumination
-
Front room/map lamp assembly
OFF
: Interior room lamp OFF
ON
: Interior room lamp ON
(+)
(-)
Test item
Voltage
Connector
Terminal
BATTERY SAVER
M20
56
Ground
OFF
0V
ON
Battery voltage
ALLIA0408GB
August 2012
2012 Pathfinder
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