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Nissan Pathfinder (2006 year). Manual - part 312

AUTO LIGHT SYSTEM

LT-51

2006 Pathfinder

CONSULT-II Function (IPDM E/R)

EKS00FVA

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

CONSULT-II OPERATION

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.

With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.

Touch "START (NISSAN BASED VHCL)".

Touch "IPDM E/R" on "SELECT SYSTEM" screen.
If "IPDM E/R" is not displayed, go to

GI-40, "CONSULT-II Data

Link Connector (DLC) Circuit"

IPDM E/R diagnostic mode

Description

SELF-DIAG RESULTS

Displays IPDM E/R self-diagnosis results.

DATA MONITOR

Displays IPDM E/R input/output data in real time.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

ACTIVE TEST

Operation of electrical loads can be checked by sending drive signal to them.

BBIA0538E

BCIA0029E

BCIA0030E

LT-52

AUTO LIGHT SYSTEM

2006 Pathfinder

Select the desired part to be diagnosed on the "SELECT DIAG
MODE" screen.

DATA MONITOR
Operation Procedure

Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.

Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR
ITEM" screen.

Touch "START".

Touch the required monitoring item on "SELECTION FROM MENU". In "ALL SIGNALS", all items are
monitored. In "MAIN SIGNALS", predetermined items are monitored.

Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".

All Items, Main Items, Select Item Menu

NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the dis-
play may not be correct.

ACTIVE TEST
Operation Procedure

Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.

Touch item to be tested, and check operation.

Touch "START".

Touch "STOP" while testing to stop the operation.

BCIA0031E

ALL SIGNALS

All items will be monitored.

MAIN SIGNALS

Monitor the predetermined item.

SELECTION FROM MENU

Select any item for monitoring.

Item name

CONSULT-II

screen display

Display or

unit

Monitor item selection

Description

ALL

SIGNALS

MAIN

SIGNALS

SELECTION

FROM MENU

Parking, license plate
and tail lamps request

TAIL&CLR REQ

ON/OFF

Signal status input from BCM

Headlamp low beam
request

HL LO REQ

ON/OFF

Signal status input from BCM

Headlamp high beam
request

HL HI REQ

ON/OFF

Signal status input from BCM

Front fog lamps request

FR FOG REQ

ON/OFF

Signal status input from BCM

AUTO LIGHT SYSTEM

LT-53

2006 Pathfinder

Trouble Diagnosis Chart by Symptom

EKS00FVB

Lighting Switch Inspection

EKS00FVC

CHECK LIGHTING SWITCH INPUT SIGNAL

With CONSULT-II

Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor,
make sure "AUTO LIGHT SW" turns ON-OFF linked with operation
of lighting switch.

Without CONSULT-II

Refer to

LT-82, "Combination Switch Inspection"

OK or NG

>> Inspection End.

>> Check lighting switch. Refer to

LT-82, "Combination

Switch Inspection"

Test item

CONSULT-II screen display

Description

Tail lamp relay output

TAIL LAMP

Allows tail lamp relay to operate by switching operation ON-OFF at
your option.

Headlamp relay (HI, LO) out-
put

LAMPS

Allows headlamp relay (HI, LO) to operate by switching operation
(OFF, HI, LO) at your option (Headlamp high beam repeats ON-OFF
every 1 second).

Front fog lamp relay output

Allows fog lamp relay to operate by switching operation ON-OFF at
your option.

Trouble phenomenon

Malfunction system and reference

●

Parking lamps and headlamps will not illuminate when out-
side of the vehicle becomes dark. (Lighting switch 1st posi-
tion and 2nd position operate normally.)

●

Parking lamps and headlamp will not go out when outside of
the vehicle becomes light. (Lighting switch 1st position and
2nd position operate normally.)

●

Headlamps go out when outside of the vehicle becomes
light, but parking lamps stay on.

●

Refer to

LT-48, "WORK SUPPORT"

●

Refer to

LT-53, "Lighting Switch Inspection"

●

Refer to

LT-54, "Optical Sensor System Inspection"

If above systems are normal, replace BCM. Refer to

BCS-27,

"Removal and Installation"

Parking lamps illuminate when outside of the vehicle becomes
dark, but headlamps stay off. (Lighting switch 1st position and
2nd position operate normally.)

●

Refer to

LT-48, "WORK SUPPORT"

●

Refer to

LT-54, "Optical Sensor System Inspection"

If above systems are normal, replace BCM. Refer to

BCS-27,

"Removal and Installation"

Auto light adjustment system will not operate. (Lighting switch
AUTO, 1st position and 2nd position operate normally.)

●

Refer to

LT-54, "Optical Sensor System Inspection"

If above system is normal, replace BCM. Refer to

BCS-27, "Removal

and Installation"

Auto light adjustment system will not operate.

●

CAN communication line to BCM inspection. Refer to

BCS-20,

"CAN Communication Inspection Using CONSULT-II (Self-Diagno-
sis)"

Shut off delay feature will not operate.

●

CAN communication line inspection between BCM and combina-
tion meter. Refer to

BCS-20, "CAN Communication Inspection

Using CONSULT-II (Self-Diagnosis)"

●

Refer to

BL-29, "Door Switch Check"

If above system is normal, replace BCM. Refer to

BCS-27, "Removal

and Installation"

When lighting switch is in
AUTO position

: AUTO LIGHT SW ON

SKIA4196E

LT-54

AUTO LIGHT SYSTEM

2006 Pathfinder

Optical Sensor System Inspection

EKS00FVD

CHECK OPTICAL SENSOR INPUT SIGNAL

With CONSULT-II

Select "BCM" on CONSULT-II. With "OPTICAL SENSOR" data mon-
itor, check difference in the voltage when the optical sensor is illumi-
nated and not illuminated.

NOTE:
Optical sensor must be completely subjected to work lamp light. If
the optical sensor is insufficiently illuminated, the measured value
may not satisfy the standard.

Without CONSULT-II

GO TO 2.

OK or NG

>> Inspection End.

>> GO TO 2.

CHECK OPTICAL SENSOR SIGNAL GROUND CIRCUIT

Turn ignition switch OFF.

Disconnect BCM connector and optical sensor connector.

Check continuity (open circuit) between BCM harness connector
M18 terminal 18 and optical sensor harness connector M145
terminal 3.

Check continuity (short circuit) between BCM harness connector
M18 terminal 18 and ground.

OK or NG

>> GO TO 3.

>> Repair harness or connector.

CHECK OPTICAL SENSOR SIGNAL CIRCUIT

Check continuity (open circuit) between BCM harness connector
M20 terminal 58 and optical sensor harness connector M145
terminal 4.

Check continuity (short circuit) between BCM harness connector
M20 terminal 58 and ground.

OK or NG

>> Replace optical sensor. Refer to

LT-55, "Removal and

Installation"

. Recheck sensor output with CONSULT-II.

If NG, replace BCM. Refer to

BCS-27, "Removal and Installation"

>> Repair harness or connector.

Illuminated

OPTICAL SENSOR

: 3.1V or more

Not illuminated

OPTICAL SENSOR

: 0.6V or less

WKIA0486E

18 - 3

: Continuity should exist.

18 - Ground

: Continuity should not exist.

WKIA3328E

58 - 4

: Continuity should exist.

58 - Ground

: Continuity should not exist.

WKIA3329E

AUTO LIGHT SYSTEM

LT-55

2006 Pathfinder

Removal and Installation

EKS00FVE

OPTICAL SENSOR
Removal

Using a thin blade screwdriver, gently pry upward to release optical sensor from defrost grille.

Disconnect optical sensor connector.

Installation

Installation is in the reverse order of removal.

LKIA0571E

LT-56

FRONT FOG LAMP

2006 Pathfinder

FRONT FOG LAMP

PFP:26150

Component Parts and Harness Connector Location

EKS00FVF

System Description

EKS00FVG

Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The light-
ing switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.
When the lighting switch is placed in the fog lamp position, the BCM (body control module) receives input sig-
nal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communi-
cated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication
lines. The CPU (central processing unit) of the IPDM E/R controls the front fog lamp relay coil. When acti-
vated, this relay directs power to the front fog lamps.

OUTLINE

Power is supplied at all times

●

to ignition relay, located in the IPDM E/R, and

●

to front fog lamp relay, located in the IPDM E/R, and

●

through 20A fuse (No. 53, located in the IPDM E/R)

●

to CPU of the IPDM E/R, and

●

through 50A fusible link (letter g , located in the fuse and fusible link box)

●

to BCM terminal 70.

When the ignition switch is in ON or START position, power is supplied

●

to ignition relay, located in the IPDM E/R, and

●

through 10A fuse [No. 1, located in the fuse block (J/B)]

●

to BCM terminal 38.

Ground is supplied

●

to BCM terminal 67

●

through grounds M57, M61 and M79, and

●

to IPDM E/R terminals 38 and 59

●

through grounds E9, E15 and E24.

FOG LAMP OPERATION

The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or
AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation.

WKIA4960E

1. IPDM E/R

E118, E119, E120, E121,
E122, E123, E124

BCM
M18, M19, M20
(view with instrument lower panel RH removed)

Combination switch (lighting switch)
M28

4. Combination meter

M24

FRONT FOG LAMP

LT-57

2006 Pathfinder

With the fog lamp switch in the ON position, the CPU of the IPDM E/R grounds the coil side of the fog lamp
relay. The fog lamp relay then directs power

●

through 20A fuse (No. 56, located in the IPDM E/R)

●

through IPDM E/R terminal 50

●

to front fog lamp LH terminal 1, and

●

through IPDM E/R terminal 51

●

to front fog lamp RH terminal 1.

Ground is supplied

●

to front fog lamp LH and RH terminal 2

●

through grounds E9, E15 and E24.

With power and ground supplied, the front fog lamps illuminate.

COMBINATION SWITCH READING FUNCTION

Refer to

BCS-3, "COMBINATION SWITCH READING FUNCTION"

EXTERIOR LAMP BATTERY SAVER CONTROL

When the combination switch (lighting switch) is in the 2ND position (ON), the fog lamp switch is ON, and the
ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the fog lamps (and headlamps) remain illuminated for 5 minutes, then the fog lamps (and
headlamps) are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.

CAN Communication System Description

EKS00FVH

Refer to

LAN-25, "CAN COMMUNICATION"

LT-58

FRONT FOG LAMP

2006 Pathfinder

Wiring Diagram — F/FOG —

EKS00FVI

WKWA4227E

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