Nissan GT-R. Instruction — part 271
SE-26
< DTC/CIRCUIT DIAGNOSIS >
SEAT CUSHION HEATER (DRIVER SIDE)
2.
Connect seat cushion heater connector.
3.
Disconnect seatback heater connector.
4.
Turn ignition switch ON.
5.
Check voltage between seat cushion heater harness connector and ground.
NOTE:
Voltage is repeated within the value shown as per the following list depending on heater unit temperature.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace seat cushion heater.
4.
CHECK SEAT CUSHION HEATER GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect seat cushion heater connector.
3.
Check continuity between seat cushion heater harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK SEAT CUSHION HEATER
Check seat cushion heater.
Refer to
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace seat cushion heater.
6.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-38, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009162925
1.
CHECK SEAT CUSHION HEATER (MAIN HEATER CIRCUIT)
1.
Turn ignition switch OFF.
2.
Disconnect seat cushion heater connector.
3.
Check resistance between seat cushion heater terminals.
NOTE:
Resistance value changes according to temperature.
Is the inspection result normal?
(+)
(–)
Condition
Voltage (V)
(Approx.)
Seat cushion heater
Connector
Terminal
B518
12
Ground
Heated seat
Operates
0 – Battery voltage
Other than above
0
Seat cushion heater
Ground
Continuity
Connector
Terminal
B518
21
Existed
Seat cushion heater
Condition
Resistance
(
Ω
)
(Approx.)
Terminal
21
41
When heat sensor temperature is 20
°
C (68
°
F)
2.99 – 3.59
SEAT CUSHION HEATER (DRIVER SIDE)
SE-27
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
YES
>> GO TO 2.
NO
>> Replace seat cushion heater.
2.
CHECK SEAT CUSHION HEATER (SEATBACK HEATER CIRCUIT)
Check resistance between seat cushion heater terminals.
NOTE:
Resistance value changes according to temperature.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace seat cushion heater.
Seat cushion heater
Condition
Resistance
(
Ω
)
(Approx.)
Terminal
21
12
When heat sensor temperature is 20
°
C (68
°
F)
3.13 – 3.75
SE-28
< DTC/CIRCUIT DIAGNOSIS >
SEATBACK HEATER (DRIVER SIDE)
SEATBACK HEATER (DRIVER SIDE)
Description
INFOID:0000000009162926
Warms the seatback.
Component Function Check
INFOID:0000000009162927
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
>> Seatback heater function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000009162928
1.
CHECK SEAT CUSHION HEATER INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect seatback heater connector.
3.
Turn ignition switch ON.
4.
Check voltage between seatback heater harness connector and ground.
NOTE:
Voltage is repeated within the value shown as per the following list depending on heater unit temperature.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK SEATBACK HEATER CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect seat cushion heater connector.
3.
Check continuity between seatback heater harness connector and seat cushion heater harness connec-
tor.
4.
Check continuity between seatback heater harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
3.
CHECK SEATBACK HEATER OUTPUT SIGNAL
1.
Turn ignition switch OFF.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Seatback heater
Connector
Terminal
B515
12
Ground
Heated seat
Operates
0 – Battery voltage
Other than above
0
Seatback heater
Seat cushion heater
Continuity
Connector
Terminal
Connector
Terminal
B515
12
B508
12
Existed
Seatback heater
Ground
Continuity
Connector
Terminal
B515
12
Not existed
SEATBACK HEATER (DRIVER SIDE)
SE-29
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
2.
Connect seat cushion heater connector.
3.
Check continuity between seatback heater harness connector and seat cushion heater harness connec-
tor.
4.
Check continuity between seatback heater harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace seat cushion heater.
4.
CHECK SEAT CUSHION HEATER
Check seat cushion heater.
Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace seat cushion heater.
5.
CHECK SEATBACK HEATER
Check seatback heater.
Refer to
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace seatback heater.
6.
CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to
GI-38, "Intermittent Incident"
>> INSPECTION END
Component Inspection (Seat Cushion Heater)
INFOID:0000000009162929
1.
CHECK SEAT CUSHION HEATER
1.
Turn ignition switch OFF.
2.
Disconnect seat cushion heater connector.
3.
Check continuity between seatback heater terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace seat cushion heater.
Component Inspection (Seatback Heater)
INFOID:0000000009162930
1.
CHECK SEATBACK HEATER
1.
Turn ignition switch OFF.
2.
Disconnect seatback heater connector.
Seatback heater
Seat cushion heater
Continuity
Connector
Terminal
Connector
Terminal
B515
51
B508
51
Existed
Seatback heater
Ground
Continuity
Connector
Terminal
B515
51
Not existed
Seat cushion heater
Continuity
Terminal
51
21
Existed
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