Nissan Pathfinder (2010 year). Instruction — part 651
WCS
METER BUZZER CIRCUIT
WCS-19
< COMPONENT DIAGNOSIS >
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METER BUZZER CIRCUIT
Description
INFOID:0000000005256312
• The buzzer for warning chime system is installed in the combination meter.
• The combination meter sounds the alarm buzzer based on the signals transmitted from various units.
Component Function Check
INFOID:0000000005256313
1.
CHECK OPERATION OF METER BUZZER
1. Select “BUZZER” of “BCM” on CONSULT-III.
2. Perform “LIGHT WARN ALM” of “ACTIVE TEST”.
Does meter buzzer activate?
YES
>> Inspection End.
NO
>> Replace combination meter. Refer to
MWI-96, "Removal and Installation"
Diagnosis Procedure
INFOID:0000000005256314
1.
CHECK POWER SUPPLY OF COMBINATION METER
Check power supply of combination meter. Refer to
MWI-29, "COMBINATION METER : Diagnosis Proce-
.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair power supply circuit of combination meter.
2010 Pathfinder
WCS-20
< COMPONENT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Description
INFOID:0000000005256315
Transmits a seat belt buckle switch signal to the combination meter.
Component Function Check
INFOID:0000000005256316
1.
CHECK COMBINATION METER INPUT SIGNAL
Select “DATA MONITOR” for “METER/M&A” and check the “SEAT BELT W/L” monitor value.
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005256317
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
.
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 con-
nector 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
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
WKIA3294E
24 - 1
: Continuity should exist.
24 - Ground
: Continuity should not exist.
WKIA3295E
2010 Pathfinder
WCS
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
WCS-21
< COMPONENT DIAGNOSIS >
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Check continuity between seat belt buckle switch LH harness con-
nector B12 terminal 2 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000005256318
1.
CHECK SEAT BELT BUCKLE SWITCH
1. Turn ignition switch OFF.
2. Disconnect the seat belt buckle switch LH connector.
3. Check continuity between terminals 1 and 2.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace the seat belt buckle switch LH.
2 - Ground
: Continuity should exist.
AWNIA0087ZZ
1– 2
When seat belt is
fastened
: Continuity should not exist.
When seat belt is
unfastened
: Continuity should exist.
WKIA1143E
2010 Pathfinder
WCS-22
< COMPONENT DIAGNOSIS >
KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
Description
INFOID:0000000005256319
Transmits a key switch signal to the BCM.
Component Function Check
INFOID:0000000005256320
1.
CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” for “BCM” and check the “KEY ON SW” monitor value.
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005256321
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 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 3
3.
CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM and key switch and ignition knob switch con-
nectors.
2. Check continuity between BCM harness connector M18 (A) and
key switch and ignition knob switch harness connector M66 (B).
3. Check continuity between BCM harness connector M18 (A) and
ground.
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
A
B
Continuity
Connector
Terminal
Connector
Terminal
M18
37
M66
4
Yes
AWNIA0239ZZ
2010 Pathfinder
WCS
KEY SWITCH SIGNAL CIRCUIT (WITH INTELLIGENT KEY)
WCS-23
< COMPONENT DIAGNOSIS >
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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 and ground.
Is the inspection result normal?
YES
>> Replace key switch and ignition knob switch.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000005256322
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.
A
Ground
Continuity
Connector
Terminal
M18
37
No
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
2010 Pathfinder
WCS-24
< COMPONENT DIAGNOSIS >
KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
Description
INFOID:0000000005256323
Transmits a key switch signal to the BCM.
Component Function Check
INFOID:0000000005256324
1.
CHECK BCM INPUT SIGNAL
Select “DATA MONITOR” for “BCM” and check the “KEY ON SW” monitor value.
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005256325
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 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 3
3.
CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM and key switch connectors.
2. Check continuity between BCM harness connector M18 (A) and
key switch harness connector M27 (B).
3. Check continuity between BCM harness connector M18 (A) and
ground.
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
A
B
Continuity
Connector
Terminal
Connector
Terminal
M18
37
M27
1
Yes
WKIA4102E
2010 Pathfinder
WCS
KEY SWITCH SIGNAL CIRCUIT (WITHOUT INTELLIGENT KEY)
WCS-25
< COMPONENT DIAGNOSIS >
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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 and ground.
Is the inspection result normal?
YES
>> Replace key switch.
NO
>> Repair harness or connector.
Component Inspection
INFOID:0000000005256326
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.
A
Ground
Continuity
Connector
Terminal
M18
37
No
Terminals
Voltage
(Approx.)
(+)
(
−
)
Key switch
Terminal
M27
3
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
2010 Pathfinder
WCS-26
< COMPONENT DIAGNOSIS >
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
Wiring Diagram
INFOID:0000000005256327
ABNWA0512GB
2010 Pathfinder
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