Nissan Pathfinder (2009 year). Manual - part 404

EXL-22

< FUNCTION DIAGNOSIS >

COMBINATION SWITCH READING SYSTEM

Combination switch circuit

Combination switch INPUT-OUTPUT system list

NOTE:

Headlamp has a dual system switch.

COMBINATION SWITCH READING FUNCTION

Description

• BCM reads the status of the combination switch at 10 ms interval normally.

NOTE:
BCM reads the status of the combination switch at 20 ms interval when BCM is controlled at low power con-
sumption control mode.

• BCM operates as follows and judges the status of the combination switch.
- INPUT 1 - 5 outputs the voltage waveforms of 5 systems simultaneously.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 5 

→

 4 

→

 3 

→

 2 

→

 1.

System

OUTPUT 1

OUTPUT 2

OUTPUT 3

OUTPUT 4

OUTPUT 5

INPUT 1

—

FR WASHER

FR WIPER LOW

TURN LH

TURN RH

INPUT 2

FR WIPER HI

—

FR WIPER INT

PASSING

HEADLAMP 1

INPUT 3

INT VOLUME 1

RR WASHER

—

HEADLAMP 2

HI BEAM

INPUT 4

RR WIPER INT

INT VOLUME 3

AUTO LIGHT

—

TAIL LAMP

INPUT 5

INT VOLUME 2

RR WIPER

—

FR FOG

—

LIIA0760E

JPMIA0067GB

2009 Pathfinder

COMBINATION SWITCH READING SYSTEM

EXL-23

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

- The voltage waveform of INPUT corresponding to the formed circuit changes according to the operation of

the transistor on OUTPUT side if any (1 or more) switches are ON.

- It reads this change of the voltage as the status signal of the combination switch.

Operation Example

In the following operation example, the combination of the status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.

Example 1: When a switch (TURN RH switch) is turned ON

• The circuit between INPUT 1 and OUTPUT 5 is formed when the TURN RH switch is turned ON.

• BCM detects the combination switch status signal “1E” when the signal of OUTPUT 5 is input to INPUT 1.
• BCM judges that the TURN RH switch is ON when the signal “1E” is detected.

Example 2: When some switches (turn RH switch, front wiper LO switch) are turned ON

JPMIA0068GB

ALMIA0260GB

2009 Pathfinder

EXL-24

< FUNCTION DIAGNOSIS >

COMBINATION SWITCH READING SYSTEM

• The circuits between INPUT 1 and OUTPUT 5 and between INPUT 1 and OUTPUT 3 are formed when the

TURN RH switch and FR WIPER LOW switch are turned ON.

• BCM detects the combination switch status signal “1CE” when the signals of OUTPUT 3 and OUTPUT 5 are

input to INPUT 1.

• BCM judges that the TURN RH switch and FR WIPER LOW switch are ON when the signal “1CE” is

detected.

WIPER INTERMITTENT DIAL POSITION SETTING (FRONT WIPER INTERMITTENT OPERATION)

BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1, 2 and 3 switches.

Component Parts Location

INFOID:0000000004422054

ALMIA0261GB

Wiper intermittent

dial position

Intermittent

operation delay

interval

INT VOLUME switch ON/OFF status  

INT VOLUME 1 switch

INT VOLUME 2 switch

INT VOLUME 3 switch

1

Short

↑

↓

Long

ON

ON

ON

2

ON

ON

OFF

3

ON

OFF

OFF

4

OFF

OFF

OFF

5

OFF

OFF

ON

6

OFF

ON

ON

7

OFF

ON

OFF

ALMIA0308ZZ

2009 Pathfinder

COMBINATION SWITCH READING SYSTEM

EXL-25

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

1.

BCM M18, M19, M20 (view with low-
er instrument panel LH removed)

2.

Combination switch (lighting and 
turn signal switch) M28

3.

Combination switch (wiper and 
washer switch) M28

2009 Pathfinder

EXL-26

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

HEADLAMP

HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)

INFOID:0000000004422055

WORK SUPPORT

*: Initial setting

DATA MONITOR

Work Item

Setting item

Setting

BATTERY SAVER SET

ON*

With the exterior lamp battery saver function

OFF

Without the exterior lamp battery saver function

CUSTOM A/LIGHT SET-
TING

MODE1*

Normal

MODE2

More sensitive setting than normal setting (Turns ON earlier than normal operation.)

MODE3

More sensitive setting than MODE 2 (Turns ON earlier than MODE 2.)

MODE4

Less sensitive setting than normal setting (Turns ON later than normal operation.)

ILL DELAY SET

MODE1*

45 sec.

Sets delay timer function timer operation time
(All doors closed)

MODE2

Without the func-
tion

MODE3

30 sec.

MODE4

60 sec.

MODE5

90 sec.

MODE6

120 sec.

MODE7

150 sec.

MODE8

180 sec.

Monitor Item

[Unit]

Description

IGN ON SW [ON/OFF]

Ignition switch (ON) status judged from IGN signal (ignition power supply)

ACC ON SW [ON/OFF]

Ignition switch (ACC) status judged from ACC signal (accessory power supply)

HI BEAM SW [ON/OFF]

Each switch status that BCM judges from the combination switch reading function

HEAD LAMP SW 1 [ON/OFF]

HEAD LAMP SW 2 [ON/OFF]

LIGHT SW 1ST [ON/OFF]

AUTO LIGHT SW [ON/OFF]

PASSING SW [ON/OFF]

FR FOG SW [ON/OFF]

RR FOG SW [ON/OFF]*

TURN SIGNAL R [ON/OFF]

TURN SIGNAL L [ON/OFF]

DOOR SW-DR [ON/OFF]

The switch status input from front door switch LH

DOOR SW-AS [ON/OFF]

The switch status input from front door switch RH

DOOR SW-RR [ON/OFF]

The switch status input from rear door switch RH

DOOR SW-RL [ON/OFF]

The switch status input from rear door switch LH

BACK DOOR SW [ON/OFF]

The switch status input from back door switch

CARGO LAMP SW [ON/OFF]

Cargo lamp status that BCM judges from the vehicle condition

OPTICAL SENSOR [ON/OFF]

The value of exterior brightness voltage input from the optical sensor

2009 Pathfinder

DIAGNOSIS SYSTEM (BCM)

EXL-27

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

*: The item is indicated, not monitored.

ACTIVE TEST

*: The item is indicated, not monitored.

FLASHER

FLASHER : CONSULT-III Function (BCM - FLASHER)

INFOID:0000000004422056

DATA MONITOR

ACTIVE TEST

COMB SW

COMB SW : CONSULT-III Function (BCM - COMB SW)

INFOID:0000000004422057

DATA MONITOR

Test Item

Operation

Description

TAIL LAMP

ON

Transmits the position light request signal to IPDM E/R with CAN com-
munication to turn the tail lamp ON.

OFF

Stops the tail lamp request signal transmission.

HEAD LAMP

HI

Transmits the high beam request signal with CAN communication to turn 
the headlamp (HI).

LO

Transmits the low beam request signal with CAN communication to turn 
the headlamp (LO).

OFF

Stops the high & low beam request signal transmission.

FR FOG LAMP

ON

Transmits the front fog lights request signal to IPDM E/R with CAN com-
munication to turn the front fog lamp ON.

OFF

Stops the front fog lights request signal transmission.

CARGO LAMP

ON

Transmits the cargo lamp request signal to IPDM E/R with CAN commu-
nication to turn the each lamp ON.

OFF

Stops the day time running light request signal transmission.

CORNERING LAMP*

RH

—

LH

OFF

Monitor Item

[Unit]

Description

IGN ON SW [ON/OFF]

Ignition switch (ON) status judged from IGN signal (ignition power supply)

HAZARD SW [ON/OFF]

The switch status input from the hazard switch

TURN SIGNAL R [ON/OFF]

Each switch condition that BCM judges from the combination switch reading function

TURN SIGNAL L [ON/OFF]

BRAKE SW [ON/OFF]

The switch status input from the brake switch

Test Item

Operation

Description

FLASHER

RH

Outputs the voltage to turn the right side turn signal lamps ON.

LH

Outputs the voltage to turn the left side turn signal lamps ON.

OFF

Stops the voltage to turn the turn signal lamps OFF.

2009 Pathfinder

EXL-28

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

*: The item is indicated, not monitored.

Monitor Item

[Unit]

Description

TURN SIGNAL R 
[OFF/ON]

Displays the status of the TURN RH switch in combination switch judged by BCM with the combination switch 
reading function

TURN SIGNAL L 
[OFF/ON]

Displays the status of the TURN LH switch in combination switch judged by BCM with the combination switch 
reading function

HI BEAM SW 
[OFF/ON]

Displays the status of the HI BEAM switch in combination switch judged by BCM with the combination switch 
reading function

HEADLAMP SW1
[OFF/ON]

Displays the status of the HEADLAMP switch in combination switch judged by BCM with the combination 
switch reading function

HEADLAMP SW2
[OFF/ON]

Displays the status of the HEADLAMP switch in combination switch judged by BCM with the combination 
switch reading function

LIGHT SW 1ST
[OFF/ON]

Displays the status of the HEADLAMP switch in combination switch judged by BCM with the combination 
switch reading function

PASSING SW
[OFF/ON]

Displays the status of the PASSING switch in combination switch judged by BCM with the combination switch 
reading function

AUTO LIGHT SW
[OFF/ON]

Displays the status of the AUTO LIGHT switch in combination switch judged by BCM with the combination 
switch reading function

FR FOG SW
[OFF/ON]

Displays the status of the FR FOG switch in combination switch judged by BCM with the combination switch 
reading function

RR FOG SW*
[OFF/ON]

—

FR WIPER HI
[OFF/ON]

Displays the status of the FR WIPER HI switch in combination switch judged by BCM with the combination 
switch reading function

FR WIPER LOW
[OFF/ON]

Displays the status of the FR WIPER LOW switch in combination switch judged by BCM with the combination 
switch reading function

FR WIPER INT
[OFF/ON]

Displays the status of the FR WIPER INT switch in combination switch judged by BCM with the combination 
switch reading function

FR WASHER SW
[OFF/ON]

Displays the status of the FR WASHER switch in combination switch judged by BCM with the combination 
switch reading function

INT VOLUME
[1 - 7]

Displays the status of wiper intermittent dial position judged by BCM with the combination switch reading 
function

RR WIPER ON
[OFF/ON]

Displays the status of the RR WIPER switch in combination switch judged by BCM with the combination 
switch reading function

RR WIPER INT
[OFF/ON]

Displays the status of the RR WIPER INT switch in combination switch judged by BCM with the combination 
switch reading function

RR WASHER SW
[OFF/ON]

Displays the status of the RR WASHER switch in combination switch judged by BCM with the combination 
switch reading function

2009 Pathfinder

DIAGNOSIS SYSTEM (IPDM E/R)

EXL-29

< FUNCTION DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000004422058

AUTO ACTIVE TEST

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
• Oil pressure low warning indicator
• Oil pressure gauge
• Rear window defogger
• Front wipers
• Tail, license and parking lamps
• Front fog lamps
• Headlamps (Hi, Lo)
• A/C compressor (magnetic clutch)
• Cooling fan

Operation Procedure

1.

Close the hood and front door RH, and lift the wiper arms from the windshield (to prevent windshield dam-
age due to wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.

2.

Turn ignition switch OFF.

3.

Turn the ignition switch ON and, within 20 seconds, press the front door switch LH 10 times. Then turn the
ignition switch OFF.

4.

Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.

5.

After a series of the following operations is repeated 3 times, auto active test is completed.

NOTE:
When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.

CAUTION:

• If auto active test mode cannot be actuated, check door switch system. Refer to 

DLK-57, "Descrip-

tion"

 (with Intelligent Key system), 

DLK-226, "Description"

 (without Intelligent Key system).

• Do not start the engine.

Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following 7 steps are repeated 3 times.

Operation 
sequence

Inspection Location

Operation

1

Rear window defogger

10 seconds 

2

Front wipers

LO for 5 seconds 

→

 HI for 5 seconds

WKIA4991E

2009 Pathfinder