Nissan Pathfinder (2010 year). Manual - part 394

EXL-18

< FUNCTION DIAGNOSIS >

TURN SIGNAL AND HAZARD WARNING LAMPS

Component Description

INFOID:0000000005259725

1.

BCM M18, M20 (view with lower instru-
ment panel LH removed)

2.

Combination switch (lighting and turn 
signal switch) M28

3.

Combination meter M24

4.

Hazard switch M55

Part name

Description

BCM

Controls turn signal and hazard flasher operation.

Combination switch (lighting and turn signal switch)

Lighting and turn signal switch requests are output to the BCM.

Hazard switch

Hazard flasher request signal is output to the BCM.

Combination meter

Outputs turn and hazard indicator as requested by the BCM.

2010 Pathfinder

PARKING, LICENSE PLATE AND TAIL LAMPS

EXL-19

< FUNCTION DIAGNOSIS >

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PARKING, LICENSE PLATE AND TAIL LAMPS

System Diagram

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System Description

INFOID:0000000005259727

PARKING, LICENSE PLATE AND TAIL LAMPS OPERATION

When the lighting switch is in 1ST position, BCM detects the LIGHTING SWITCH 1ST POSITION ON. The

BCM 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 sends power to the parking and instrument illumination circuits. 

EXTERIOR LAMP BATTERY SAVER CONTROL

With the lighting switch (combination switch) in the 2nd position and the ignition switch is turned from ON or

ACC to OFF, the battery saver feature is activated.

Under this condition, the headlamps remain illuminated for 5 minutes unless the lighting switch position is

changed. If the lighting switch position is changed, then the headlamps are turned off. 

This setting can be changed by CONSULT-III. Refer to 

EXL-28, "HEADLAMP : CONSULT-III Function (BCM -

HEAD LAMP)"

.

Component Parts Location

INFOID:0000000005259728

ALLIA0622GB

1.

IPDM E/R E121, E122, E123, E124

2.

BCM M18, M20 (view with lower instru-
ment panel LH removed)

3.

Combination switch (lighting and turn 
signal switch) M28

4.

Combination meter M24

WKIA4963E

2010 Pathfinder

EXL-20

< FUNCTION DIAGNOSIS >

PARKING, LICENSE PLATE AND TAIL LAMPS

Component Description

INFOID:0000000005259729

Part name

Description

BCM

• Receives lighting switch requests via BCM combination switch 

reading function.

• Sends parking light request signal to the IPDM E/R.

IPDM E/R

Activates the tail lamp relay upon request of the BCM.

Combination switch (lighting and turn signal switch)

Outputs lighting requests to the BCM.

2010 Pathfinder

COMBINATION SWITCH READING SYSTEM

EXL-21

< FUNCTION DIAGNOSIS >

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COMBINATION SWITCH READING SYSTEM

System Diagram

INFOID:0000000005259730

System Description

INFOID:0000000005259731

OUTLINE

• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the

status of each switch.

• BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a

maximum of 20 switch status.

COMBINATION SWITCH MATRIX

LIIA0757E

2010 Pathfinder

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

2010 Pathfinder

COMBINATION SWITCH READING SYSTEM

EXL-23

< FUNCTION DIAGNOSIS >

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- 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

2010 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:0000000005259732

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

2010 Pathfinder

COMBINATION SWITCH READING SYSTEM

EXL-25

< FUNCTION DIAGNOSIS >

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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

2010 Pathfinder