Infiniti Q45. Manual — part 846
HEATED SEAT
SE-139
C
D
E
F
G
H
J
K
L
M
A
B
SE
4.
CHECK FRONT SEAT CUSHION HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect front seatback heater connector and front seat cush-
ion heater connector.
3.
Check continuity between front seatback heater connector B152
(Driver side), B352 (Passenger side) terminal C and front seat
cushion heater connector B151 (Driver side), B351 (Passenger
side) terminal C.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace harness between front seat back and
font seat cushion.
5.
CHECK FRONT SEAT CUSHION GROUND HARNESS
Check continuity between front seat cushion heater connector B151
(Driver side), B351 (Passenger side) terminal 15C and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace harness between front seat cushion
heater and ground.
6.
CHECK FRONT SEAT CUSHION
Does the heater operate normally when the seat cushion is exchanged?
Does seat cushion get warm?
YES
>> Replace rear seatback.
NO
>> Check connector for damage or loose connection.
Check Front Heated Seat Circuit 2
NIS0014J
1.
CHECK FRONT SEATBACK HEATER 1
1.
Turn ignition switch ON.
2.
Check voltage between front heated seat switch and ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
C (SB)
−
C (SB)
:Continuity should exist
PIIB0402E
15C (B)
−
Ground
:Continuity should exist
PIIA4108E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M94
(Driver side)
2 (L/W)
Ground
Turn ignition switch ON
Front heated seat switch LOW
Battery
voltage
Front heated seat switch OFF
0
M95
(Passenger
side)
2 (P)
Turn ignition switch ON
Front heated seat switch LOW
Battery
voltage
Front heated seat switch OFF
0
PIIA4109E
SE-140
HEATED SEAT
2.
CHECK FRONT HEATED SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front heated seat switch connector.
3.
Check continuity between front heated seat switch as follows.
OK or NG
OK
>> Check connector for damage or loose connection.
NG
>> Replace front heated seat switch.
3.
CHECK FRONT SEATBACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect front heated seat switch connector and front seat-
back heater connector.
3.
Check continuity between front heated seat switch connector
M94(driver side), M95 (passenger side) terminal 2 and front
seatback heater connector B152(driver side), B352(passenger
side) terminal 62.
4.
Check continuity between front heated seat switch connector M94(driver side), M95 (passenger side) ter-
minal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between front heated seat switch and front seatback heater.
4.
CHECK FRONT SEATBACK HEATER
Check continuity between front seatback heater B152 (driver side),
B352 (passenger side) terminal C and 62.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace front seatback heater.
Terminal
Condition
Continuity
1
2
Front heated seat switch LOW
Yes
Other than above
No
PIIA4110E
Driver side
2 (L/W) – 62 (L)
: Continuity should exist
Passenger side
2 (P) – 62 (L)
: Continuity should exist
Driver side
2 (L/W) – Ground
: Continuity should not exist
Passenger side
2 (P) – Ground
: Continuity should not exist
PIIA4029E
C (SB)
−
62 (L)
: Continuity should exist
PIIA4111E
HEATED SEAT
SE-141
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Front Heated Seat Circuit 3
NIS0014K
1.
CHECK FRONT HEATED SEAT SWITCH
1.
Turn ignition switch ON.
2.
Check voltage between front heated seat switch and ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
CHECK FRONT HEATED SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front heated seat switch connector.
3.
Check continuity between front heated seat switch as follows.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace front heated seat switch.
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M94
(Driver side)
3 (R/Y)
Ground
Turn ignition switch ON
Front heated seat switch HIGH
Battery
voltage
Front heated seat switch OFF
0
M95
(Passenger
side)
3 (Y)
Turn ignition switch ON
Front heated seat switch HIGH
Battery
voltage
Front heated seat switch OFF
0
PIIA4030E
Terminal
Condition
Continuity
1
3
Front heated seat switch HIGH
Yes
Other than above
No
PIIA4031E
SE-142
HEATED SEAT
3.
CHECK FRONT SEATBACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect front heated seat switch connector and front seat-
back heater connector.
3.
Check continuity between front heated seat switch connector
M94(driver side), M95 (passenger side) terminal 3 and front
seatback heater connector B152(driver side), B352(passenger
side) terminal 63.
4.
Check continuity between front heated seat switch connector M94(driver side), M95 (passenger side) ter-
minal 3 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between front heated seat switch and front seatback heater.
4.
CHECK FRONT SEATBACK HEATER
Check continuity between front seatback heater B152 (driver side),
B352 (passenger side) terminal C and 63.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace front seatback heater.
Check Front Heated Seat Switch Ground Circuit
NIS0014L
1.
CHECK FRONT HEATED SEAT SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect front heated seat switch connector.
3.
Check continuity between front heated seat switch as follows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace front heated seat switch.
Driver side
3 (R/Y) – 63 (B)
: Continuity should exist
Passenger side
3 (Y) – 63 (B)
: Continuity should exist
Driver side
3 (R/Y) – Ground
: Continuity should not exist
Passenger side
3 (Y) – Ground
: Continuity should not exist
PIIB1747E
C (SB)
−
63 (B)
: Continuity should exist
PIIA4112E
Terminal
Condition
Continuity
2
4
Front heated seat switch HIGH
Yes
Other than above
No
PIIA4033E
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