Nissan GT-R. Instruction — part 268
SE-14
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
HEATED SEAT CONTROL UNIT
HEATED SEAT CONTROL UNIT : Diagnosis Procedure
INFOID:0000000009162908
1.
CHECK FUSE
Check that the following fuse is not fusing.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect heated seat control unit connector.
3.
Turn ignition switch ON.
4.
Check voltage between heated seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect heated seat relay connector.
3.
Check continuity between heated seat control unit harness connector and heated seat relay terminal con-
nector.
4.
Check continuity between heated seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Check heated seat relay. Refer to
SE-20, "Component Function Check"
NO
>> Repair or replace harness.
4.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between heated seat control unit harness connector and ground.
Signal name
Fuse No.
Battery power supply
35 (15 A)
(+)
(
−
)
Voltage (V)
(Approx.)
Heated seat control unit
Connector
Terminal
B519
18
Ground
Battery voltage
Heated seat control unit
Heated seat relay
Continuity
Connector
Terminal
Connector
Terminal
B519
18
M70
3
Existed
Heated seat control unit
Ground
Continuity
Connector
Terminal
B519
18
Not existed
POWER SUPPLY AND GROUND CIRCUIT
SE-15
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
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L
M
A
B
SE
N
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P
Is the inspection result normal?
YES
>> Replace heated seat control unit.
NO
>> Repair or replace harness.
HEATED SEAT SWITCH (DRIVER SIDE)
HEATED SEAT SWITCH (DRIVER SIDE) : Diagnosis Procedure
INFOID:0000000009162909
1.
CHECK FUSE
Check that the following fuse is not fusing.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.
CHECK POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect heated seat switch connector.
3.
Turn ignition switch ON.
4.
Check voltage between heated seat switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect heated seat relay connector.
3.
Check continuity between heated seat switch harness connector and heated seat relay terminal connec-
tor.
4.
Check continuity between heated seat switch harness connector and ground.
Is the inspection result normal?
YES
>> Check heated seat relay. Refer to
SE-20, "Component Function Check"
.
NO
>> Repair or replace harness.
4.
CHECK INTERMITTENT INCIDENT
Heated seat control unit
Ground
Continuity
Connector
Terminal
B519
21
Existed
Signal name
Fuse No.
Battery power supply
35 (15 A)
(+)
(
−
)
Voltage (V)
(Approx.)
Heated seat switch
Connector
Terminal
Driver side
B513
18
Ground
Battery voltage
Heated seat switch
Heated seat relay
Continuity
Connector
Terminal
Connector
Terminal
Driver side
B513
18
M70
3
Existed
Heated seat switch
Ground
Continuity
Connector
Terminal
Driver side
B513
18
Not existed
SE-16
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
Check intermittent incident.
Refer to
GI-38, "Intermittent Incident"
>> INSPECTION END
HEATED SEAT SWITCH (DRIVER SIDE)
SE-17
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
HEATED SEAT SWITCH (DRIVER SIDE)
Description
INFOID:0000000009162910
Adjusts heated seat temperature and deactivates heated seat.
Component Function Check
INFOID:0000000009162911
1.
CHECK FUNCTION
Check that heated seat warms to preset temperature when operating heated seat switch to the optimal posi-
tion.
Is the inspection result normal?
YES
>> Heated seat switch function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009162912
1.
CHECK HEATED SEAT CONTROL UNIT INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect heated seat control unit connector.
3.
Turn ignition switch ON.
4.
Check voltage between heated seat control unit harness connector and ground.
Is the inspection result normal?
YES
>> Heated seat switch circuit is OK.
NO
>> GO TO 2.
2.
CHECK HEATED SEAT SWITCH CIRCUIT 1
1.
Turn ignition switch OFF.
2.
Disconnect heated seat switch connector, diode3 and diode4 connector.
3.
Check continuity between heated seat switch harness connector and diode3 harness connector.
4.
Check continuity between heated seat switch harness connector and diode4 harness connector.
5.
Check continuity between heated seat switch harness connector and ground.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Heated seat control unit
Connector
Terminal
B519
81
Ground
Heated seat switch
OFF
0
LO
12.24
HI
12.90
80
OFF
0
LO
Battery voltage
HI
Heated seat switch
Diaudo3
Continuity
Connector
Terminal
Connector
Terminal
B513
22
B520
22
Existed
23
23
Heated seat switch
Diaudo4
Continuity
Connector
Terminal
Connector
Terminal
B513
22
B521
83
Existed
23
82
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