Nissan Pathfinder. Manual — part 1015
SE-58
< DTC/CIRCUIT DIAGNOSIS >
SEATBACK THERMAL ELECTRIC DEVICE SENSOR
SEATBACK THERMAL ELECTRIC DEVICE SENSOR
Component Function Check
INFOID:0000000009176478
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR FUNCTION
Check whether or not the temperature of the seatback thermal electric device changes in accordance with the
HEAT or COOL switch operation of the climate controlled seat control switch.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009176479
Regarding Wiring Diagram information, refer to
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage between seatback thermal electric device harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3. Check continuity between climate controlled seat control unit harness connector and seatback thermal
electric device harness connector.
4. Check continuity between climate controlled seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat control unit. Refer to
SE-86, "Removal and Installation"
NO
>> Repair or replace harness.
3.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
(+)
(-)
Condition
Voltage (V)
(Approx.)
Seatback thermal electric device
Connector
Terminal
Driver side
B212
3
Ground
Climate controlled seat
operated
1 - 5
Passenger side
B309
Climate controlled seat control unit
Seatback thermal electric device
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B203
16
B212
3
Yes
Passenger side
B303
B309
Climate controlled seat control unit
Ground
Continuity
Connector
Terminal
Driver side
B203
16
No
Passenger side
B303
SEATBACK THERMAL ELECTRIC DEVICE SENSOR
SE-59
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
3. Check continuity between climate controlled seat control unit harness connector and seatback thermal
electric device harness connector.
4. Check continuity between climate controlled seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR
Check seatback thermal electric device sensor.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace seatback thermal electric device.
SE-88, "Seatback Thermal Electric Device"
.
Component Inspection
INFOID:0000000009176480
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR
1. Turn ignition switch OFF.
2. Disconnect seatback thermal electric device connector.
3. Check resistance between seatback thermal electric device terminals.
*
: When sensor temperature is 25
°C (77°F).
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace seatback thermal electric device. Refer to
SE-88, "Seatback Thermal Electric Device"
Climate controlled seat control unit
Seatback thermal electric device
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B203
15
B212
4
Yes
Passenger side
B303
B309
Climate controlled seat control unit
Ground
Continuity
Connector
Terminal
Driver side
B203
15
No
Passenger side
B303
Seatback thermal electric device
Resistance
(Approx.)
Terminal
3
4
1000
Ω
*
SE-60
< DTC/CIRCUIT DIAGNOSIS >
SEAT CUSHION THERMAL ELECTRIC DEVICE
SEAT CUSHION THERMAL ELECTRIC DEVICE
Component Function Check
INFOID:0000000009176481
1.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE FUNCTION
Check whether or not the temperature of the seat cushion thermal electric device changes in accordance with
the HEAT or COOL switch operation of the climate controlled seat control switch.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009176482
Regarding Wiring Diagram information, refer to
1.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE SIGNAL
1. Turn ignition switch ON.
2. Check voltage between seat cushion thermal electric device harness connector and ground.
*:It changes between 12 and 0 V
NOTE:
Wait 1 minute or more after the activation start, and then start the measurement.
Is the inspection result normal?
YES
>> Replace seat cushion thermal electric device. Refer to
SE-88, "Seat Cushion Thermal Electric
NO
>> GO TO 2.
2.
CHECK SEAT CUSHION THERMAL ELECTRIC DEVICE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seat cushion thermal electric device con-
nector.
3. Check continuity between climate controlled seat control unit harness connector and seat cushion thermal
electric device harness connector.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Seat cushion thermal electric device
Connector
Terminal
Driver side
B206
1
Ground
Climate controlled seat
switch
HEAT or COOL
0 - 12*
Other than above
0
2
HEAT or COOL
0 - 12*
Other than above
0
Passenger side
B308
1
Climate controlled seat
switch
HEAT or COOL
0 - 12*
Other than above
0
2
HEAT or COOL
0 - 12*
Other than above
0
SEAT CUSHION THERMAL ELECTRIC DEVICE
SE-61
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
4. Check continuity between climate controlled seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat control unit. Refer to
SE-86, "Removal and Installation"
NO
>> Repair or replace harness.
Climate controlled seat control unit
Seat cushion thermal electric device
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B205
27
B206
1
Yes
26
2
Passenger side
B305
27
B308
1
26
2
Climate controlled seat control unit
Ground
Continuity
Connector
Terminal
Driver side
B205
27
No
26
Passenger side
B305
27
26
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