Nissan Pathfinder (2008 year). Manual - part 531

RF-6

< FUNCTION DIAGNOSIS >

SUNROOF SYSTEM

FUNCTION DIAGNOSIS

SUNROOF SYSTEM

System Diagram

INFOID:0000000001712623

SUNROOF

System Description

INFOID:0000000001712624

SUNROOF SYSTEM

INPUT/OUTPUT SIGNAL CHART

SUNROOF OPERATION

• The sunroof motor assembly operates with a power supply that is output from the BCM while the ignition

switch is ON or retained power is operating.

• The tilt up/down & slide open/close signals from the sunroof switch enable the sunroof motor to move arbi-

trarily.

AUTO OPERATION

The sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the sunroof
without holding the sunroof switch in the slide open/tilt down or slide close/tilt up position.

RETAINED POWER OPERATION 

Retained power operation is an additional power supply function that enables the sunroof system to operate
up to 45 seconds after the ignition switch is turned OFF.

Retained power function cancel conditions

• When a front door is opened (door switch ON)
• When ignition switch is turned ON again.
• When 45 seconds elapse on the timer.

ALKIA0861GB

Item

Input signal to sunroof motor assembly 

Sunroof motor function

Actuator

Sunroof switch

Sunroof switch signal (tilt down or slide 
open)

Sunroof control

Sunroof motor

Sunroof switch signal (tilt up or slide 
close)

BCM

RAP signal

SUNROOF SYSTEM

RF-7

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Component Parts Location

INFOID:0000000001712625

Component Description

INFOID:0000000001712626

ALKIA1175ZZ

1.

Sunroof switch R4

2.

Sunroof motor assembly B83 

3.

BCM  M18, M19, M20
(View with instrument panel re-
moved)

4.

Front door switch LH B8, RH B108

Component

Function

BCM

Supplies power to the sunroof motor assembly.

Sunroof switch

Transmits tilt up/down & slide open/close operation signal to sunroof motor assembly.

Sunroof motor assembly

The sunroof motor and integrated CPU enables tilt up/down & slide open/close as requested by 
the sunroof switch.

Front door switch

Detects door open/close condition and transmits to BCM.

RF-8

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000001712627

APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

RETAINED PWR

RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)

INFOID:0000000001712628

WORK SUPPORT

DATA MONITOR

ACTIVE TEST

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

SELF-DIAG RESULTS

Displays the diagnosis results judged by BCM. Refer to 

BCS-51, "DTC Index"

.

CAN DIAG SUPPORT MNTR

Monitors the reception status of CAN communication viewed from BCM.

DATA MONITOR

The BCM input/output signals are displayed.

ACTIVE TEST

The signals used to activate each device are forcibly supplied from BCM.

ECU IDENTIFICATION

The BCM part number is displayed.

CONFIGURATION

This function is not used even though it is displayed.

Work Support Item

Description

RETAINED PWR SET

MODE 1
MODE 2
MODE 3

Monitor Item

Description

IGN ON SW

Indicates [ON/OFF] condition of the ignition switch. 

DOOR SW-DR

Indicates [ON/OFF] condition of the front door switch LH.

DOOR SW-AS

Indicates [ON/OFF] condition of the front door switch RH.

Active Test Item

Description

RETAINED PWR 

Turns retained power function [ON/OFF].

POWER SUPPLY AND GROUND CIRCUIT

RF-9

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COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

INFOID:0000000001712629

SUNROOF MOTOR ASSEMBLY

1.

 CHECK SUNROOF MOTOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly connector B83.

3.

Turn ignition switch ON.

4.

Check voltage between sunroof motor assembly connector B83
terminals 7 and 9 and ground.

Is the voltage as specified?

YES

>> GO TO 4

NO

>> GO TO 2

2.

 CHECK SUNROOF MOTOR POWER SUPPLY 

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector M20.

3.

Check continuity between BCM connector M20 (A) and sunroof
motor assembly connector B83 (B).

4.

Check continuity between BCM connector M20 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK BCM OUTPUT SIGNAL

(+)

(–)

Voltage

Connector

Terminal 

B83

7

Ground

Battery voltage

9

ALKIA1176GB

A

B

Continuity

Connector

Terminal

Connector

Terminal

M20

68

B83

7

Yes

69

9

A

—

Continuity

Connector

Terminal

M20

68

Ground

No

69

ALKIA1177GB

RF-10

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

1.

Connect BCM connector M20.

2.

Turn ignition switch ON.

3.

Check voltage between BCM connector M20 and ground.

Is the voltage reading as specified?

YES

>> Check condition of harness and connector.

NO

>> Replace BCM. Refer to 

BCS-54, "Removal and Installation"

.

4.

 CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between sunroof motor assembly connector
B83 terminal 10 and ground.

Is the continuity test result as specified?

YES

>> Power supply and ground circuits are OK.

NO

>> Repair or replace harness.

SUNROOF MOTOR ASSEMBLY : Special Repair Requirement

INFOID:0000000001712630

1.

 PERFORM INITIALIZATION PROCEDURE

Perform initialization procedure. 
Refer to 

RF-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement"

.

Does the sunroof motor assembly operate properly?

YES

>> Repair is complete.

NO

>> Check fitting adjustment.

(+)

(–)

Voltage

Connector

Terminal 

M20

68

Ground

Battery voltage

69

ALKIA0871ZZ

Connector

Terminal

—

Continuity 

B83

10

Ground

Yes

ALKIA1178GB

SUNROOF SWITCH CIRCUIT

RF-11

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SUNROOF SWITCH CIRCUIT

Description

INFOID:0000000001712631

The BCM supplies power to the integrated CPU of the sunroof motor assembly. The tilt and slide functions of
the sunroof motor assembly is controlled by the sunroof switch. 

Component Function Check

INFOID:0000000001712632

1.

 CHECK SUNROOF MOTOR FUNCTION

Do tilt up/down & slide open/close functions operate normally with sunroof switch?
Is the inspection result normal?

YES

>> Sunroof motor assembly is OK.

NO

>> Refer to 

RF-9, "SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001712633

1.

 CHECK SUNROOF SWITCH INPUT SIGNAL 

1.

Turn ignition switch ON.

2.

Check voltage between sunroof switch connector and ground.

Are the voltage measurements as specified?

YES

>> Sunroof switch is operating normally. 

NO

>> GO TO 2

2.

 CHECK SUNROOF SWITCH CIRCUITS

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly connector B83 and sunroof
switch connector R4.

3.

Check continuity between sunroof motor assembly connector
B83 (A) and sunroof switch connector R4 (B) and .

4.

Check continuity between sunroof motor assembly connector B83 (A) and ground. 

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> Repair harness or connector.

3.

 CHECK SUNROOF SWITCH

Connector

Terminals

Sunroof switch position

Voltage (V)

(Approx.)

(+)

(–)

R4

1

2

DOWN/OPEN

0V

Other than above

Battery voltage

3

UP/CLOSE

0V

Other than above

Battery voltage

ALKIA1179GB

A

B

Continuity

Connector

Terminal

Connector

Terminal

B83

5

R4

3

Yes

1

1

A

—

Continuity

Connector

Terminal

B83

5

Ground

No

1

ALKIA1180GB

RF-12

< COMPONENT DIAGNOSIS >

SUNROOF SWITCH CIRCUIT

1.

Check continuity between sunroof switch terminals.

Are the continuity test results as specified?

YES

>> Sunroof switch is operating normally.

NO

>> Replace sunroof switch (map lamp assembly). Refer to

INL-53, "Removal and Installation"

.

Terminals

Sunroof switch position

Continuity

1

2

DOWN/OPEN

Yes

Other than above

No

3

UP/CLOSE

Yes

Other than above

No

ALKIA1181GB

DOOR SWITCH

RF-13

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DOOR SWITCH

Description

INFOID:0000000001712634

Detects door open/close condition and transmits the signal to BCM.

Component Function Check

INFOID:0000000001712635

1.

 CHECK DOOR SWITCH INPUT SIGNAL

Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-III.

Is the inspection result normal?

YES

>> Door switch circuit is OK.

NO

>> Refer to 

RF-13, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001712636

1.

 CHECK FRONT DOOR SWITCH

Check front door switches.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> Replace front door switch.

2.

 CHECK FRONT DOOR SWITCH INPUT SIGNAL

Check voltage between BCM connectors M18 and M19 and ground.

Are the voltage readings as specified?

YES

>> Replace BCM. Refer to 

BCS-54, "Removal and Installation"

.

NO

>> GO TO 3

3.

 CHECK HARNESS CONTINUITY

Monitor item

Condition

DOOR SW-DR

OPEN

: ON

CLOSE

: OFF

DOOR SW-AS

OPEN

: ON

CLOSE

: OFF

Terminal

Switch condition

Continuity

2

Ground

Pressed

No

Released

Yes

LIIA2377E

(+)

(–)

Front door condition

Voltage

Connector

Terminal 

M18

12

Ground

RH

OPEN

0V

CLOSE

Battery voltage

M19

47

LH

OPEN

0V

CLOSE

Battery voltage

ALKIA0875ZZ