Infiniti F50. Manual — part 789
HEATED SEAT
SE-147
C
D
E
F
G
H
J
K
L
M
A
B
SE
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(B).
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 (LH), B352
(RH) terminal C (SB) and 63 (B).
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace front seatback heater.
Front Heated Seat Switch Ground Circuit Inspection
EIS003W6
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
PIIA4029E
C (SB)
−
63 (B)
: Continuity should exist
PIIA4112E
Terminal
Condition
Continuity
2
4
Front heated seat switch HIGH.
YES
Other than above.
NO
PIIA4033E
SE-148
HEATED SEAT
2.
CHECK FRONT HEATED SEAT SWITCH GROUND HARNESS
Check continuity between front heated seat switch connector M94
(Driver side), M95 (passenger side) terminal 4 (B) and ground.
OK or NG
OK
>> Check connector for damage or loose connection.
NG
>> Repair or replace harness between front heated seat
switch and ground.
Rear Power Seat Control Unit Power Supply Circuit Inspection 1
EIS003W7
1.
CHECK REAR POWER SEAT OPERATION
Does the rear power seat operate normally?
YES or NO
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK FUSIBLE LINK
Check 40A fusible link (letter H located in the fuse and fusible link box).
NOTE:
Refer to
SE-130, "Component Parts and Harness Connector Location"
.
OK or NG
OK
>> GO TO 3.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to
130, "Component Parts and Harness Connector Location"
.
3.
CHECK REAR POWER SEAT CONTROL UNIT BATTERY POWER SUPPLY CIRCUIT
1.
Disconnect rear power seat control unit connector.
2.
Check voltage between rear power seat control unit connector
B162 (driver side), B362 (RH) terminal 2 (G) and ground.
OK or NG
OK
>> Check the condition of the harness connector.
NG
>> Repair or replace harness between fuse block (J/B) and
rear power seat control unit.
4 (B)
−
Ground
:Continuity should exist
PIIA4034E
2 (G)
−
Ground
: Battery voltage
PIIA3978E
HEATED SEAT
SE-149
C
D
E
F
G
H
J
K
L
M
A
B
SE
4.
CHECK REAR POWER SEAT CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT
1.
Check the condition of the harness and connector.
2.
Turn ignition switch ON.
3.
Check voltage between rear power seat control unit connector
B162 (driver side), B362 (RH) connector terminal 44 (GY/B) and
ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between fuse block (J/B) and
rear power seat control unit.
Rear Power Seat Control Unit Power Supply and Ground Circuit Inspection
EIS003W9
1.
CHECK REAR POWER SEAR OPERATION
Does the rear power seat operate normally?
YES or NO
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK REAR POWER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat control unit connector.
3.
Check voltage between rear power seat control unit connector
B162 (driver side), B362 (RH) terminal 2 (G) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between fuse block (J/B) and
rear power seat control unit.
3.
CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT
Check continuity between rear power seat control unit connector
B162 (LH), B362 (RH) terminal 15 (B) and ground.
OK or NG
OK
>> Replace rear power seat control unit.
NG
>> Repair or replace harness between rear power seat con-
trol unit and ground.
44 (GY/B)
−
Ground
: Battery voltage
PIIA4035E
2 (G)
−
Ground
: Battery voltage
PIIA3978E
15 (B)
−
Ground
:Continuity should exist
PIIA4036E
SE-150
HEATED SEAT
4.
CHECK REAR POWER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1.
Disconnect rear power seat control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between rear power seat control unit B162 (LH),
B362 (RH) connector terminal 44 (GY/B) and ground.
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Repair or replace harness between fuse block (J/B) and
rear power seat control unit.
Rear Power Seat Switch (Heater Switch) Ground Circuit Inspection
EIS003W1
1.
CHECK REAR POWER SEAT SWITCH (HEATER SWITCH)
1.
Turn ignition switch OFF.
2.
Disconnect rear power seat switch (Heater switch) connector.
3.
Check continuity between rear power seat switch (heater switch)
as follows.
OK or NG
OK
>> GO TO 2.
NG
>> Replace rear power seat switch (Heater switch).
2.
CHECK REAR POWER SEAT SWITCH (HEATER SWITCH) GROUND CIRCUIT
Check continuity between rear power seat switch (heater switch)
connector D55 (LH), D75 (RH) terminal 2 (B) and ground.
OK or NG
OK
>> Rear power seat switch (heater switch) ground circuit
check is OK.
NG
>> Repair or replace harness between rear power seat
switch (heater switch) and ground.
44 (GY/B)
−
Ground
: Battery voltage
PIIA4035E
Terminal
Condition
Continuity
5
2
Rear heater switch LOW.
YES
6
Rear heater switch HIGH.
YES
5
2
Other than above.
NO
6
PIIA4046E
2 (B)
−
Ground
:Continuity should exist
PIIA4038E
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