Infiniti F50. Manual — part 790
HEATED SEAT
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Rear Heated Seat Circuit Inspection 1
EIS003W2
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.
2.
CHECK REAR SEAT CUSHION HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seatback heater connector and front seat cush-
ion heater connector.
3.
Check continuity between rear seatback connector B365 (LH),
B365 (RH) terminal A (Y/B) and ground.
OK or NG
OK
>> Replace rear seatback.
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 front seat cush-
ion heater connector.
3.
Check continuity between rear seatback connector B165 (LH),
B365 (RH) terminal A (Y/B) and rear seat cushion heater con-
nector B166 (LH), B366 (RH) terminal A (Y/B).
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between rear seatback and
rear seat cushion.
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
A (Y/B)
−
Ground
:Continuity should not exist
PIIA4040E
A (Y/B)
−
A (Y/B)
:Continuity should exist
PIIA4041E
SE-152
HEATED SEAT
4.
CHECK REAR SEAT CUSHION HEATER GROUND CIRCUIT
Check continuity between rear seat cushion heater connector B166
(LH), B366 (RH) terminal 15B (B) 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.
Rear Heated Seat Circuit Inspection 2
EIS003WB
1.
CHECK REAR SEATBACK HEATER POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
CHECK REAR SEAT BACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seat control unit connector and rear seatback
heater connector.
3.
Check continuity between rear seat control unit connector B162
(LH), B362 (RH) terminal 8 (OR) and ground.
OK or NG
OK
>> Replace rear seat control unit.
NG
>> Repair or replace harness between rear seat control unit
and seatback heater.
15B (B)
−
Ground
:Continuity should exist
PIIA4042E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B162
(LH),
B362
(RH)
8 (OR)
Ground
Turn ignition switch ON.
Heater switch LOW.
Battery voltage
Heater switch OFF.
0
PIIA4101E
8 (OR)
−
Ground
:Continuity should not exist
PIIA4102E
HEATED SEAT
SE-153
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A
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3.
CHECK REAR SEATBACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seat control unit connector and rear seatback
heater connector.
3.
Check continuity between rear seat control unit connector B162
(LH), B362 (RH) terminal 8 (OR) and rear seatback heater con-
nector B165 (LH), B365 (RH) terminal 8 (OR).
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between rear seat control unit
and rear seatback heater.
4.
CHECK REAR SEATBACK HEATER
Check continuity between rear seatback heater B165 (LH), B365
(RH) terminal A (Y/B) and 8 (OR).
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace rear seatback heater.
Rear Heated Seat Circuit Inspection 3
EIS003WC
1.
CHECK REAR SEATBACK HEATER POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check voltage between rear power seat control unit connector
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
8 (OR)
−
8 (OR)
:Continuity should exist
PIIA4120E
A (Y/B)
−
8 (OR)
: Continuity should exist
PIIA4117E
Con-
nector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
B162
(LH),
B362
(RH)
5 (BR)
Ground
Turn ignition switch ON.
Heater switch HIGH.
Battery voltage
Heater switch OFF.
0
PIIA4114E
SE-154
HEATED SEAT
2.
CHECK REAR SEAT BACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seat control unit connector and rear seatback
heater connector.
3.
Check continuity between rear seat control unit connector B162
(LH), B362 (RH) terminal 5 (BR) 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 rear seatback heater.
3.
CHECK REAR SEAT BACK HEATER HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect rear seat control unit connector and rear seatback
heater connector.
3.
Check continuity between rear seat control unit connector B162
(LH), B362 (RH) terminal 5 (BR) and rear seatback heater con-
nector B165 (LH), B365 (RH) terminal 5 (BR).
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness between rear power seat con-
trol unit and rear seatback heater.
4.
CHECK REAR SEATBACK HEATER
Check continuity between rear seatback heater B165 (LH), B365
(RH) terminal A (Y/B) and 5 (BR).
OK or NG
OK
>> Check the condition of the harness and connector.
NG
>> Replace rear seatback heater.
5 (BR)
−
Ground
:Continuity should not exist
PIIA4115E
5 (BR)
−
5 (BR)
:Continuity should exist
PIIA4116E
A (Y/B)
−
5 (BR)
: Continuity should exist
PIIA4118E
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