Nissan Pathfinder. Manual — part 581
EXL-12
< SYSTEM DESCRIPTION >
SYSTEM
FRONT FOG LAMP OPERATION
When the lighting switch position is in the AUTO (if equipped and activated) or headlamp, and the front fog
lamp position, the BCM detects front fog lamp signal and then sends a front fog lamp request ON signal via
the CAN communication lines to the IPDM E/R. The IPDM E/R then turns ON the front fog lamp relay sending
power to the front fog lamps.
TRAILER TOW SYSTEM
TRAILER TOW SYSTEM : System Diagram
INFOID:0000000009175345
TRAILER TOW SYSTEM : System Description
INFOID:0000000009175346
TRAILER TAIL LAMP OPERATION
The trailer tail lamps are controlled by the trailer tow relay 1. With the combination switch (lighting and turn sig-
nal switch) in the AUTO (if equipped and activated) or parking lamp position, the BCM detects the lighting
switch signal and then sends a parking light ON request via the CAN communication lines to the IPDM E/R.
The IPDM E/R then activates the tail lamp relay which activates the trailer tow relay 1 and sends power to the
trailer connector.
TRAILER TURN SIGNAL LAMP OPERATION
The trailer turn signal lamps are controlled by the BCM. When the turn signal switch is in the LH or RH position
with the ignition switch ON, the combination switch (lighting and turn signal switch) sends a signal to the BCM.
The BCM detects the TURN RH or TURN LH ON request. The BCM sends a control signal to the respective
trailer turn relay which sends power to the trailer connector.
TRAILER HAZARD LAMP OPERATION
The trailer hazard lamps are controlled by the BCM. When the hazard switch is pressed, the BCM detects the
hazard ON request. The BCM then sends a control signal to both trailer turn relays which sends power to the
trailer connector.
TRAILER BRAKE LAMP OPERATION
The trailer brake lamps operate when the brake pedal is pressed sending the stop lamp switch signal to the
trailer connector.
AWLIA1959GB
DIAGNOSIS SYSTEM (BCM)
EXL-13
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000009764001
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF
→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a discharged battery and no-start condition.
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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CAN Diag
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Door lock
DOOR LOCK
×
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Exterior lamp
HEADLAMP
×
×
×
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
×
EXL-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
HEADLAMP
HEADLAMP : CONSULT Function (BCM - HEADLAMP)
INFOID:0000000009764002
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF
→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a discharged battery and no-start condition.
DATA MONITOR
ACTIVE TEST
Signal buffer system
SIGNAL BUFFER
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
System
Sub System
Direct Diagnostic Mode
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CAN Diag
Support Mntr
Monitor Item [Unit]
Description
PUSH SW [On/Off]
Indicates condition of push-button ignition switch.
ENGINE STATE [STOP/STALL/CRANK/
RUN]
Indicates engine status received from ECM on CAN communication line.
VEH SPEED 1 [km/h]
Indicates vehicle speed signal received from ABS on CAN communication line.
TURN SIGNAL R [On/Off]
Indicates condition of combination switch.
TURN SIGNAL L [On/Off]
TAIL LAMP SW [On/Off]
HI BEAM SW [On/Off]
HEAD LAMP SW 1 [On/Off]
HEAD LAMP SW 2 [On/Off]
PASSING SW [On/Off]
AUTO LIGHT SW [On/Off]
FR FOG SW [On/Off]
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.
DOOR SW-BK [On/Off]
Indicates condition of back door switch.
OPTI SEN (DTCT) [V]
Indicates outside brightness voltage signal from optical sensor.
OPTI SEN (FILT) [V]
Indicates outside brightness voltage signal from optical sensor filtered by BCM.
Test Item
Description
FR FOG LAMP
This test is able to check front fog lamp operation [On/Off].
DAYTIME RUNNING LIGHT
This test is able to check daytime running lamp operation [On/Off].
ILL DIM SIGNAL
This test is able to check head lamp illumination dimming operation [On/Off].
DIAGNOSIS SYSTEM (BCM)
EXL-15
< SYSTEM DESCRIPTION >
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WORK SUPPORT
* : Initial setting
FLASHER
FLASHER : CONSULT Function (BCM - FLASHER)
INFOID:0000000009764003
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF
→ ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a discharged battery and no-start condition.
DATA MONITOR
ACTIVE TEST
Support Item
Setting
Description
TWILIGHT ON
MODE2*
Autolamp function ON.
MODE1
Autolamp function OFF.
WIPER LINK
MODE4
This mode is not used.
MODE3*
Wiper link function operates in INT, LOW and HI.
MODE2
Wiper link function operates in LOW and HI.
MODE1
Wiper link function OFF.
CUSTOM A/LIGHT SETTING
MODE4
Less sensitive than normal setting (turns ON later).
MODE3
More sensitive than MODE2.
MODE2
More sensitive than normal setting (turns ON earlier).
MODE1*
Normal setting.
ILL DELAY SET
MODE 8
Autolamp delay timer.
MODE 7
MODE 6
MODE 4
MODE 5
MODE 3
MODE 2
MODE 1*
Monitor Item [Unit]
Description
REQ SW -DR [On/Off]
Indicates condition of door request switch LH.
REQ SW -AS [On/Off]
Indicates condition of door request switch RH.
PUSH SW [On/Off]
Indicates condition of push-button ignition switch.
TURN SIGNAL R [On/Off]
Indicates condition of turn signal function of combination switch.
TURN SIGNAL L [On/Off]
HAZARD SW [On/Off]
Indicates condition of hazard switch.
RKE-LOCK [On/Off]
Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off]
Indicates condition of unock signal from Intelligent Key.
RKE-PANIC [On/Off]
Indicates condition of panic alarm signal from Intelligent Key.
Test Item
Description
FLASHER
This test is able to check turn signal lamp operation [Off/LH/RH].
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