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
< FUNCTION DIAGNOSIS >
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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
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
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
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