Nissan Pathfinder (2011 year). Manual — part 624
WCS
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
WCS-21
< DTC/CIRCUIT DIAGNOSIS >
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SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000006247542
Transmits a seat belt buckle switch signal to the combination meter.
Component Function Check
INFOID:0000000006247543
1.
CHECK COMBINATION METER INPUT SIGNAL
Select “DATA MONITOR” for “METER/M&A” and check the “SEAT BELT W/L” monitor value.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006247544
Regarding Wiring Diagram information, refer to
.
1.
CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector M24 terminal 24 and ground.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-88, "Removal and Installation"
NO
>> GO TO 2
2.
CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and seat belt buckle switch LH connector.
3. Check continuity between combination meter harness connector M24 terminal 24 and seat belt buckle
switch LH harness connector B12 terminal 1.
4. Check continuity between combination meter harness connector M24 terminal 24 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check continuity between seat belt buckle switch LH harness connector B12 terminal 2 and ground.
Is the inspection result normal?
SEAT BELT W/L
When seat belt is fastened
: OFF
When seat belt is unfastened : ON
24 - Ground
When driver seat belt is fastened
: Approx. 12V
When driver seat belt is unfastened : Approx. 0V
24 - 1
: Continuity should exist.
24 - Ground
: Continuity should not exist.
2 - Ground
: Continuity should exist.
2011 Pathfinder
WCS-22
< DTC/CIRCUIT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
YES
>> Inspection End.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000006247545
1.
CHECK SEAT BELT BUCKLE SWITCH
1. Turn ignition switch OFF.
2. Disconnect the seat belt buckle switch LH connector.
3. Check continuity between the seat belt buckle switch LH terminals 1 and 2.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace the seat belt buckle switch LH.
1– 2
When seat belt is
fastened
: Continuity should not exist.
When seat belt is
unfastened
: Continuity should exist.
2011 Pathfinder
WCS
KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
WCS-23
< DTC/CIRCUIT DIAGNOSIS >
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KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
Description
INFOID:0000000006247546
Transmits a key switch signal to the BCM.
Component Function Check
INFOID:0000000006247547
1.
CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” for “BCM” and check the “KEY ON SW” monitor value.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006247548
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE
Check if the key switch and ignition knob switch 10A fuse (No. 31, located in the fuse and fusible link box) is
blown.
Is the fuse blown?
YES
>> Be sure to repair the cause of malfunction before installing new fuse.
NO
>> GO TO 2
2.
CHECK BCM INPUT SIGNAL
Check voltage between BCM harness connector M18 terminal 37
and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 3
3.
CHECK KEY SWITCH CIRCUIT
KEY ON SW
When key is inserted into key cylinder
: ON
When key is removed from key cylinder : OFF
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
BCM
connector
Terminal
M18
37
Ground
Key is inserted
Battery voltage
Key is removed
0
PKIC0721E
2011 Pathfinder
WCS-24
< DTC/CIRCUIT DIAGNOSIS >
KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
1. Disconnect BCM connector M18 and key switch and ignition
knob switch connector.
2. Check continuity between BCM harness connector M18 (A) ter-
minal 37 and key switch and ignition knob switch harness con-
nector M66 (B) terminal 4.
3. Check continuity between BCM harness connector M18 (A) ter-
minal 37 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair harness or connector.
4.
CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch and ignition knob switch harness
connector M66 terminal 3 and ground.
Is the inspection result normal?
YES
>> Replace key switch and ignition knob switch.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000006247549
1.
CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check continuity between key switch and ignition knob switch
terminals 3 and 4.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace key switch and ignition knob switch.
BCM
Key switch and
ignition knob switch
Continuity
Connector
Terminal
Connector
Terminal
M18 (A)
37
M66 (B)
4
Yes
BCM
Ground
Continuity
Connector
Terminal
M18 (A)
37
No
AWNIA0239ZZ
Terminals
Voltage
(Approx.)
(+)
(
−
)
Key switch and ignition
knob switch connector
Terminal
M66
3
Ground
Battery voltage
AWNIA0240ZZ
3 – 4
When key is inserted
into key cylinder
: Continuity should exist.
When key is removed
from key cylinder
: Continuity should not exist.
AWNIA0241ZZ
2011 Pathfinder
WCS
KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
WCS-25
< DTC/CIRCUIT DIAGNOSIS >
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KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
Description
INFOID:0000000006247550
Transmits a key switch signal to the BCM.
Component Function Check
INFOID:0000000006247551
1.
CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” for “BCM” and check the “KEY ON SW” monitor value.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000006247552
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE
Check if the key switch 10A fuse (No. 25, located in the fuse and fusible link box) is blown.
Is the fuse blown?
YES
>> Be sure to repair the cause of malfunction before installing new fuse.
NO
>> GO TO 2
2.
CHECK BCM INPUT SIGNAL
Check voltage between BCM harness connector M18 terminal 37
and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 3
3.
CHECK KEY SWITCH CIRCUIT
KEY ON SW
When key is inserted into key cylinder
: ON
When key is removed from key cylinder : OFF
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
BCM
connector
Terminal
M18
37
Ground
Key is inserted
Battery voltage
Key is removed
0
PKIC0721E
2011 Pathfinder
WCS-26
< DTC/CIRCUIT DIAGNOSIS >
KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
1. Disconnect BCM connector M18 and key switch connector.
2. Check continuity between BCM harness connector M18 (A) ter-
minal 37 and key switch harness connector M27 (B) terminal 1.
3. Check continuity between BCM harness connector M18 (A) ter-
minal 37 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair harness or connector.
4.
CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M27 terminal
2 and ground.
Is the inspection result normal?
YES
>> Replace key switch.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000006247553
1.
CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check continuity between key switch terminals 1 and 2.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace key switch.
BCM
Key switch
Continuity
Connector
Terminal
Connector
Terminal
M18 (A)
37
M27 (B)
1
Yes
BCM
Ground
Continuity
Connector
Terminal
M18 (A)
37
No
WKIA4102E
Terminals
Voltage
(Approx.)
(+)
(
−
)
Key switch
Terminal
M27
2
Ground
Battery voltage
WKIA4103E
1 – 2
When key is inserted
into key cylinder
: Continuity should exist.
When key is removed
from key cylinder
: Continuity should not exist.
WKIA4101E
2011 Pathfinder
WCS
COMBINATION METER
WCS-27
< ECU DIAGNOSIS INFORMATION >
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ECU DIAGNOSIS INFORMATION
COMBINATION METER
Reference Value
INFOID:0000000006706251
TERMINAL LAYOUT
PHYSICAL VALUES
LKIA0698E
Termi-
nal
Wire
color
Item
Condition
Reference value (V)
(Approx.)
Ignition
switch
Operation or condition
2
P
Generator
ON
Generator voltage low
0
Generator voltage normal
Battery voltage
3
R/Y
Battery power supply
—
—
Battery voltage
4
B/Y
Fuel level sensor ground
ON
—
0
5
W
Vehicle speed signal out-
put
ON
Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)]
6
LG
Vehicle speed signal out-
put (8-pulse)
ON
Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)]
NOTE:
Maximum voltage may be 12V due to spec-
ifications (connected units).
9
BR
Fuel level sensor signal
—
—
Refer to
11
P
CAN-L
—
—
—
12
L
CAN-H
—
—
—
13
GR
Ground
—
—
0
16
W/G
Ignition switch ON or
START
—
—
Battery voltage
18
L
A/T 1st position switch
signal
—
A/T shift selector in 1st po-
sition
0
A/T shift selector in other
than 1st position
Battery voltage
ELF1080D
PKIC0643E
2011 Pathfinder
WCS-28
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
Fail Safe
INFOID:0000000006706253
The combination meter performs a fail-safe operation for the functions listed below when communication is
lost.
20
Y
Overdrive control switch
signal
—
Overdrive control switch
pressed
0
Overdrive control switch
released
Battery voltage
22
BR
Illumination control
switch
—
—
Refer to
.
23
B
Ground
—
—
0
24
V
Seat belt buckle switch
LH
ON
Unfastened (ON)
0
Fastened (OFF)
Battery voltage
31
G
Parking brake switch
ON
Parking brake depressed
0
Parking brake released
Battery voltage
32
SB
Brake fluid level switch
ON
Brake fluid level low
0
Brake fluid level normal
Battery voltage
33
LG
Stop lamp switch
—
Brake pedal depressed
Battery voltage
Brake pedal released
0
34
L
Washer fluid level switch
ON
Washer fluid level low
0
Washer fluid level normal
Battery voltage
37
SB
Air bag warning lamp in-
put
ON
Air bag warning lamp ON
4
Air bag warning lamp OFF
0
39
G
Security indicator input
OFF
Security indicator ON
0
Security indicator OFF
Battery voltage
40
LG
Seat belt buckle switch
RH
ON
Unfastened (ON)
0
Fastened (OFF)
Battery voltage
Termi-
nal
Wire
color
Item
Condition
Reference value (V)
(Approx.)
Ignition
switch
Operation or condition
Function
Specifications
Speedometer
Zero indication.
Tachometer
Fuel gauge
Engine coolant temperature gauge
Engine oil pressure gauge
Voltage gauge
Illumination control
Meter illumination
Change to nighttime mode when communication is lost.
Segment LCD
Odometer
Freeze current indication.
A/T position
Display turns off.
Buzzer
Buzzer turns off.
2011 Pathfinder
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