Infiniti Q45. Manual — part 847
HEATED SEAT
SE-143
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK FRONT HEATED SEAT SWITCH GROUND HARNESS
Check continuity between front heated seat switch connector M94
(Driver side), M95 (passenger side) terminal 4 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.
Check Rear Power Seat Control Unit Power Supply Circuit
NIS0014M
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-124, "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
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 (LH), B362 (RH) terminal 2 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.
CHECK REAR POWER SEAT CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between rear power seat control unit connector
B162 (LH), B362 (RH) connector terminal 44 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.
4 (B)
−
Ground
:Continuity should exist
PIIA4034E
2 (G)
−
Ground
: Battery voltage
PIIA3978E
44 (GY/B)
−
Ground
: Battery voltage
PIIA4035E
SE-144
HEATED SEAT
Check Rear Power Seat Control Unit Power Supply and Ground Circuit
NIS0014N
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 (LH), B362 (RH) terminal 2 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 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.
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 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.
2 (G)
−
Ground
: Battery voltage
PIIA3978E
15 (B)
−
Ground
:Continuity should exist
PIIA4036E
44 (GY/B)
−
Ground
: Battery voltage
PIIA4035E
HEATED SEAT
SE-145
C
D
E
F
G
H
J
K
L
M
A
B
SE
Check Rear Power Seat Switch (Heater Switch) Ground Circuit
NIS0014O
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 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.
Check Rear Heated Seat Circuit 1
NIS0014P
1.
CHECK REAR SEAT CUSHION HEATER POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between rear seatback heater and ground.
OK or NG
OK
>> GO TO 5.
NG
>> When turn ignition switch ON and heater switch LOW position or HIGH position check the follow-
ing.
●
When voltage is approx. 0V, GO TO 2.
●
When voltage is approx. 12V, GO TO 3.
Terminal
Condition
Continuity
5
2
Rear heater switch HIGH
Yes
Other than above
No
6
Rear heater switch LOW
Yes
Other than above
No
PIIA4046E
2 (B)
−
Ground
:Continuity should exist
PIIA4038E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B165 (LH)
B365 (RH)
A (Y/B)
Ground
Turn ignition switch ON
Heater switch LOW
6.0
Turn ignition switch ON
Heater switch HIGH
6.0
Heater switch OFF
0
PIIA4039E
SE-146
HEATED SEAT
2.
CHECK REAR SEAT CUSHION HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seatback heater connector.
3.
Check continuity between rear seatback connector B165 (LH),
B365 (RH) terminal A and ground.
OK or NG
OK
>> Replace rear seatback heater.
NG
>> Repair or replace harness between rear seatback and
rear seat cushion.
3.
CHECK REAR SEAT CUSHION HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seatback heater connector and rear seat cush-
ion heater connector.
3.
Check continuity between rear seatback connector B165 (LH),
B365 (RH) terminal A and rear seat cushion heater connector
B166 (LH), B366 (RH) terminal A.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between rear seatback
heater and rear seat cushion heater.
4.
CHECK REAR SEAT CUSHION HEATER GROUND CIRCUIT
Check continuity between rear seat cushion heater connector B166
(LH), B366 (RH) terminal 15B and ground.
OK or NG
OK
>> Rear rear heated seat cushion circuit inspection is OK.
NG
>> Repair or replace harness between rear seat cushion
heater and ground.
5.
CHECK FRONT SEAT CUSHION
Does the heater operate normally when the seat cushion is exchanged?
Does seat cushion get warm?
YES
>> Replace rear seat cushion.
NO
>> Check connector for damage or loose connection.
A (Y/B)
−
Ground
:Continuity should not exist
PIIA4040E
A (Y/B)
−
A (Y/B)
:Continuity should exist
PIIA4041E
15B (B)
−
Ground
:Continuity should exist
PIIA4042E
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