Infiniti F50. Manual — part 784
POWER SEAT
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2.
CHECK REAR POWER SEAT SLIDING MOTOR SENSOR HARNESS
1.
Disconnect rear power seat control unit connector and rear
power seat sliding motor sensor connector.
2.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 21 (W/G), 74 (G/R) and rear
power seat sliding motor connector B164 (LH), B364 (RH) termi-
nal 21 (W/G), 74 (G/R).
3.
Check continuity between rear power seat control unit connector
B168 (LH), B368 (RH) terminal 21 (W/G), 74 (G/R) and ground.
OK or NG
OK
>> Replace rear power seat sliding motor.
NG
>> Repair or replace harness between rear power seat control unit and rear power seat sliding motor.
21 (W/G)
−
21 (W/G)
:Continuity should exist
74 (G/R)
−
74 (G/R)
:Continuity should exist
21 (W/G)
−
Ground
:Continuity should not exist
74 (G/R)
−
Ground
:Continuity should not exist
PIIA4027E
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HEATED SEAT
HEATED SEAT
PFP:87335
System Description
EIS0046L
NOTE:
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When handling seat, be extremely careful not to scratch heating unit
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To replace heating unit, seat trim and pad should be separated.
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Do not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trims.
Power is all times supplied
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through 40A fusible link [Letter H, located in the fuse block (J/B)],
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to rear power seat control unit LH and rear power seat control unit RH terminal 2.
With the ignition switch to ON or START position, power is supplied
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through 20A fuse [No. 81, located in the fuse block (J/B)]
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to front heated seat switch (driver side, passenger side) terminal 1, and
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to rear power seat control unit LH, RH terminal 44,
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to rear power seat switch (heater switch) terminal 1
FRONT HEATED SEAT
When front heated seat switch (driver side, passenger side) is LOW position, power is suppled
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through heated seat switch terminal 2,
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through front seatback heater terminal 62,
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through front seatback heater terminal C,
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to front seat cushion heater terminal C.
Then ground is suppled
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to front seat cushion heater terminal 15C,
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through body grounds B17 and B57(driver side), B217 and B256 (passenger side).
With power and ground supplied front seatback heater and front seat cushion heater. are operated.
When front heated seat switch driver side, passenger side is HIGH position, power is supplied
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through front heated seat switch terminal 3,
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through front seatback heater terminal 63,
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through front seatback heater terminal C,
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to front seat cushion heater terminal C
Then ground is suppled
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to front seat cushion heater terminal 15C,
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through body grounds B17 and B57(driver side), B217 and B256 (passenger side).
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to front seatback heater terminal 62,
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through heated seat switch terminal 2,
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through heated seat switch terminal 4,
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through body grounds M25 and M115.
With power and ground supplied, front heated seat generates heat more than the time of LOW position.
When heated seat switch (driver side, passenger side) is LOW or HIGH position, ground is supplied
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through heated seat switch terminal 4,
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through body grounds M25 and M115.
With power and ground supplied, front heated seat switch indicator is illuminated.
REAR HEATED SEAT
When rear heater seat switch (LH, RH) is LOW position, ground is suppled
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to rear power seat control unit terminal 32,
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through rear power seat switch (heater switch) terminal 5 (LH), 6 (RH),
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through rear power seat switch (heater switch) terminal 2,
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through body grounds B17 and B57 (LH), B217 and B256 (RH)
Then rear power seat control unit recognizes that heater switch is LOW position.
HEATED SEAT
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When heater seat switch is LOW position, power is supplied
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through rear power seat control unit terminal 8,
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through rear seatback heater terminal 8,
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through rear seatback heater terminal A,
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to rear seat cushion heater terminal A.
Then ground is suppled
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to rear seat cushion heater terminal 15B.
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through body grounds B17 and B57 (LH), B217 and B256 (RH).
With power and ground supplied, rear seatback heater and front seat cushion heater is.
When heater seat switch is in LOW position, ground is supplied
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to power seat switch (heater switch) terminal 3 (LH), 4 (RH),
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through rear power seat control unit terminal 26,
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through rear power seat control unit terminal 15,
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through body grounds B17 and B57 (LH), B217 and B256 (RH).
With power and ground supplied, rear heated seat switch LOW position indicator. is illuminated
When rear heater seat switch (LH, RH) is in HIGH position, ground is suppled
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to rear power seat control unit terminal 22,
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through rear power seat switch (heater switch) terminal 6 (LH), 5 (RH),
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through rear power seat switch (heater switch) terminal 2,
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through body grounds B17 and B57 (LH), B217 and B256 (RH)
Then rear power seat control unit recognizes that heater switch is in HIGH position.
When heater seat switch is in HIGH position, power is supplied
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through rear power seat control unit terminal 5,
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through rear seatback heater terminal 5,
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through rear seatback heater terminal A,
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to rear seat cushion heater terminal A.
Then ground is suppled
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to rear seat cushion heater terminal 15B.
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through body grounds B17 and B57 (LH), B217 and B256 (RH).
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to rear seat back heater terminal 8,
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through rear power seat control unit terminal 8,
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through rear power seat control unit terminal 15,
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through body grounds B17 and B57 (LH), B217 and B256 (RH).
With power and ground supplied, rear heated seat generates heat more than the time of LOW position.
When heater seat switch is in HIGH position, ground is supplied
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to power seat switch (heater switch) terminal 4 (LH), 3 (RH),
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through rear power seat control unit terminal 20,
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through rear power seat control unit terminal 15,
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through body grounds B17 and B57 (LH), B217 and B256 (RH).
With power and ground supplied rear heated seat switch HIGH position indicator is illuminated.
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HEATED SEAT
Component Parts and Harness Connector Location
EIS0042E
PIIA3390E
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