Nissan Pathfinder. Manual — part 1014
SE-54
< DTC/CIRCUIT DIAGNOSIS >
CLIMATE CONTROLLED SEAT SWITCH
4. Check continuity between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
3.
CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat switch connector.
3. Turn ignition switch ON.
4. Check voltage between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector.
3. Check continuity between climate controlled seat switch harness connector and climate controlled seat
control unit harness connector.
4. Check continuity between climate controlled seat switch harness connector and ground.
Is the inspection result normal?
Climate controlled seat switch
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
COOL
M203
2
B204
20
Yes
HEAT
3
19
Passenger side
COOL
M206
2
B304
20
HEAT
3
19
Climate controlled seat switch
Ground
Continuity
Connector
Terminal
Driver side
COOL
M203
2
No
HEAT
3
Passenger side
COOL
M206
2
HEAT
3
(+)
(–)
Voltage (V)
(Approx.)
Climate controlled seat switch
Connector
Terminal
Driver side
M203
1
Ground
12
Passenger side
M206
Climate controlled seat switch
Climate controlled seat control unit
Continuity
Connector
Terminal
Connector
Terminal
Driver side
M203
1
B204
24
Yes
Passenger side
M206
B304
Climate controlled seat switch
Ground
Continuity
Connector
Terminal
Driver side
M203
1
No
Passenger side
M206
CLIMATE CONTROLLED SEAT SWITCH
SE-55
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
YES
>> Replace climate controlled seat control unit. Refer to
SE-86, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK CLIMATE CONTROLLED SEAT SWITCH
Check climate controlled seat switch.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace climate controlled seat switch. Refer to
IP-18, "Removal and Installation"
.
Component Inspection
INFOID:0000000009176475
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat switch connector.
3. Check the continuity between climate controlled seat switch terminals under the following terminals.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace climate controlled seat switch. Refer to
IP-18, "Removal and Installation"
.
Terminal
Condition
Continuity
2
1
Climate controlled seat switch
COOL mode
ON
Yes
OFF
No
3
HEAT mode
ON
Yes
OFF
No
SE-56
< DTC/CIRCUIT DIAGNOSIS >
SEATBACK THERMAL ELECTRIC DEVICE
SEATBACK THERMAL ELECTRIC DEVICE
Component Function Check
INFOID:0000000009176476
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE 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:0000000009176477
Regarding Wiring Diagram information, refer to
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between seatback 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 seatback thermal electric device. Refer to
SE-88, "Seatback Thermal Electric Device"
NO
>> GO TO 2.
2.
CHECK SEATBACK THERMAL ELECTRIC DEVICE 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.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Seatback thermal electric device
Connector
Terminal
Driver side
B212
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
B309
1
Climate controlled seat
switch
HEAT or COOL
0 - 12*
Other than above
0
2
HEAT or COOL
0 - 12*
Other than above
0
Climate controlled seat control unit
Seatback thermal electric device
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B205
28
B212
1
Yes
25
2
Passenger side
B305
28
B309
1
25
2
SEATBACK THERMAL ELECTRIC DEVICE
SE-57
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
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
Ground
Continuity
Connector
Terminal
Driver side
B205
28
No
25
Passenger side
B305
28
25
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