2006 INFINITI M35 Motor

POWER SEAT(REAR)
SE-105
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
Rear Seat Sliding Motor Circuit InspectionNIS0027B
1. CHECK REAR SEAT SLIDING MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Check voltage between rear seat control unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Replace rear seat control unit.
2. CHECK REAR SEAT SLIDING MOTOR HARNESS
1. Disconnect rear seat control unit and rear seat sliding motor connector.
2. Check continuity between rear seat control unit connector and
rear seat sliding motor connector.
3. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> Replace rear seat sliding motor.
NG >> Repair or replace harness between rear seat control unit and rear seat sliding motor.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
control unit
connectorTerminal
B303 (LH)
B353 (RH)2
GroundRear power
seat switch Forward Battery voltage
Other than above. 0
7Rear power
seat switch Backward Battery voltage
Other than above. 0
PIIB5919E
AB
Continuity
Rear seat control
unit connectorTerminalRear seat sliding
motor connectorTerminal
B303 (LH)
B353 (RH)2
B311 (LH)
B361 (RH)3
Ye s
74
A
GroundContinuity
Rear seat control unit connector Terminal
B303 (LH)
B353 (RH)2
No
7
PIIB5920E

SE-112
POWER SEAT(REAR)
Revision: 2006 January2006 M35/M45
2. CHECK REAR SEAT SLIDING SENSOR HARNESS
1. Disconnect rear seat control unit connector and rear seat sliding motor connector.
2. Check continuity between rear seat control unit connector and
rear seat sliding motor connector.
3. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> Replace rear seat sliding motor.
NG >> Repair or replace harness between rear seat control unit and rear seat sliding motor.
AB
Continuity
Rear seat control
unit connectorTe r m i n a lRear seat sliding
motor connectorTerminal
B304 (LH)
B354 (RH)12
B311 (LH)
B361 (RH)1
Ye s
19 2
A
GroundContinuity
Rear seat control unit connector Terminal
B304 (LH)
B354 (RH)12
No
19
PIIB5933E

CLIMATE CONTROLLED SEAT
SE-113
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
CLIMATE CONTROLLED SEATPFP:870U6
Component Parts and Harness Connector LocationNIS0027H
System DescriptionNIS0027I
The climate controlled seat system is controlled by climate controlled seat control unit.
Heating and cooling are possible for a thermal electric device (heat conversion machine).
NOTE:
The climate controlled seat system is downed when the temperature sensor set as the seat cushion and
the seat back's thermal electric device machine detects 20
C (68 F)or more of mutual differences of tem-
perature.
In this case, by turning off ignition switch, system down is canceled and it can be reused by turning on
ignition switch again.
The climate controlled seat blower keep low speed for approximately 60 seconds after turning the climate
controlled seat switch.
CAUTION:
The thermal electric device has the character in which, as for an opposite side. one side becomes
high temperature at the time of low temperature.
PIIB5891E
1. Fuse block (J/B) 2. Climate controlled seat relay E16 3.a: Climate controlled seat switch
driver side B20
b: Climate controlled seat switch
passenger side B19
4.a: Seat cushion thermal electric
device B285 (driver side)
B295 (passenger side)
b: Climate controlled seat control
unit B283, B284 (driver side)
B293, B294 (passenger side)
c: Climate controlled seat blower
motor B282 (driver side)
B292 (passenger side)5.Seatback thermal electric device
B220 (driver side)
B258 (passenger side)

SE-114
CLIMATE CONTROLLED SEAT
Revision: 2006 January2006 M35/M45
At the time of work, please turn OFF a switch, and carry it out after checking that the thermal elec-
tric device has got cold.
Power is at all times supplied
through 15A fuse [No. 41 located in the fuse fusible link and relay unit]
to climate controlled seat relay terminals 5.
through 15A fuse [No. 42 located in the fuse fusible link and relay unit]
to climate controlled seat relay terminals 7.
When the ignition switch turned to ON or START position,
Power is supplied
through 10A fuse [No. 12, located in the fuse block (J/B)]
to climate controlled seat relay terminal 2.
Then ground is supplied
to climate controlled seat relay terminal 1,
through body grounds E22 and E43.
Then climate controlled seat relay is energized.
When climate controlled seat relay is turned to ON,
Power is supplied,
through climate controlled seat relay terminal 3,
to climate controlled seat control unit (passenger side) terminal 2 and 4.
through climate controlled seat relay terminal 6,
to climate controlled seat control unit (driver side) terminal 2 and 4.
When climate controlled switch select HEAT, ground is supplied
through climate controlled seat switch terminal 1 and 3,
to climate controlled seat control unit terminal 10.
Then, the climate controlled seat control unit receives climate controlled seat switch HEAT signal.
When climate controlled seat switch select COOL, ground is supplied
through climate controlled seat switch terminal 1 and 2,
to climate controlled seat control unit terminal 20,
Then, the climate controlled seat control unit receives climate controlled switch COOL signal.
When blower motor rotates, signal is transmitted
to climate controlled seat control unit terminal 18,
through climate controlled seat blower motor terminal 1.
This is climate controlled seat blower motor tachometer signal.
When climate controlled seat control unit receives climate controlled seat switch signal and tachometer signal,
Power is supplied
to climate controlled seat blower motor terminal 4,
through climate controlled seat control unit terminal 17.
This is blower motor revolution control signal.
When blower motor receivers blower motor revolution control signal,
Power is supplied
through climate controlled seat control unit terminal 14,
to climate controlled seat blower motor terminal 2.
When number of rotations correspond signal,
Ground is supplied
to climate controlled seat blower motor terminal 3,
through climate controlled seat control unit terminal 7,
through climate controlled seat control unit terminal 3,
through body grounds B5, B40 and B131.
Then motor revolution is controlled.
When the ignition switch turned to ON or START position,
Power is supplied

CLIMATE CONTROLLED SEAT
SE-123
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
Terminal and Reference Value for Climate Controlled Seat Control UnitNIS0027L
TerminalWire
ColorItem ConditionVoltage (V)
(Approx)
2 R/Y Ignition switch power supply Ignition switch ON or START Battery voltage
3 B Ground — 0
4 R/Y Ignition switch power supply Ignition switch ON or START Battery voltage
5 G/RSeat cushion thermal electric
device power supply (HEAT)Ignition switch ON
or STARTClimate controlled seat switch
select HEAT0 – Battery voltage
Climate controlled seat switch
select OFF0
6 G/BSeat cushion thermal electric
device power supply (COOL)Ignition switch ON
or STARTClimate controlled seat switch
select COOL0 – Battery voltage
Climate controlled seat switch
select OFF0
7 B/R Blower motor ground — 0
8 LG/R HEAT switch indicator signalIgnition switch ON
or STARTClimate controlled seat switch
select HEATBattery voltage
Climate controlled seat switch
select OFF0
9 LG/B COOL switch indicator signalIgnition switch ON
or STARTClimate controlled seat switch
select COOLBattery voltage
Climate controlled seat switch
select OFF0
10 Y/R HEAT switch signalIgnition switch ON
or STARTClimate controlled seat switch
select HEAT0
Climate controlled seat switch
select OFFBattery voltage
11 B / RClimate controlled seat switch
power supplyIgnition switch ON or START Battery voltage
14 V/W Blower motor power supplyIgnition switch ON
or STARTClimate controlled seat switch
select HEAT or COOL5.5 – Battery voltage
Climate controlled seat switch
select OFF0
15 W/RSeatback thermal electric
device power supply (HEAT) Ignition switch ON
or STARTClimate controlled seat switch
select HEAT0 – Battery voltage
Climate controlled seat switch
select OFF0
16 W/BSeatback thermal electric
device power supply (COOL) Ignition switch ON
or STARTClimate controlled seat switch
select COOL0 – Battery voltage
Climate controlled seat switch
select OFF0
17 R/BBlower motor speed control
signal Ignition switch ON
or STARTClimate controlled seat switch
select HEAT or COOL4.5 – 8.0
Climate controlled seat switch
select OFF0
18 VBlower motor tachometer sig-
nalIgnition switch ON
or STARTClimate controlled seat switch
select HEAT or COOL4.5 – 8.0
Climate controlled seat switch
select OFFBattery voltage
20 Y/G COOL switch signalIgnition switch ON
or STARTClimate controlled seat switch
select COOL0
Climate controlled seat switch
select OFFBattery voltage

SE-124
CLIMATE CONTROLLED SEAT
Revision: 2006 January2006 M35/M45
Work FlowNIS0027M
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SE-113, "
System Description" .
3. Perform the preliminary check. Refer toSE-124, "
Preliminary Check" .
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-125,
"Trouble Diagnoses Symptom Chart" .
5. Does climate controlled seat operate normally? YES: GO TO 6, NO: GO TO 4.
6. INSPECTION END.
Preliminary CheckNIS0027N
1. CHECK DUCT AND FILTER
Check the following.
Is that there no foreign body in the blower motor filter.
Is that there no foreign body in the duct.
OK or NG
OK >> Preliminary check is OK.
NG >> The foreign body is removed.
21 GR/LSeat cushion thermal electric
device sensor groundIgnition switch ON 0
22 GR/RSeat cushion thermal electric
device sensor signalBlower motor operated 0.5 – 4
Ignition switch OFF 0
23 L/RSeatback thermal electric
device sensor signalBlower motor operated 0.5 – 4
Ignition switch OFF 0
24 LSeatback thermal electric
device sensor groundIgnition switch ON 0 TerminalWire
ColorItem ConditionVoltage (V)
(Approx)

CLIMATE CONTROLLED SEAT
SE-125
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
Trouble Diagnoses Symptom ChartNIS0027O
NOTE:
Make sure other systems using the signal of the following systems operate normally.
NOTE:
The climate controlled seat blower keep low speed for approximately 60 seconds turning the switch.
The climate controlled seat system is downed when the temperature sensor set as the seat cushion and
the seatback's thermal electric device machine detects 20
C (68F) or more of mutual differences of tem-
perature.
Symptom Diagnoses / service procedureRefer to
page
Climate controlled seat do not operate (Neither the driver's
side nor passenger's side operate).1. Climate controlled seat control unit power supply cir-
cuit check.SE-126
All the driver side or passenger side climate controlled
seat do not operate.1. Climate controlled seat control unit power supply and
ground circuit inspection.SE-1272. Climate controlled seat switch power supply circuit
inspectionSE-130
3. Climate controlled seat blower motor circuit inspection.SE-140
4. Replace climate controlled seat control unit.SE-113
Climate controlled seat blower motor speed cannot adjust.1. Climate controlled seat switch power supply circuit
inspectionSE-1302. Climate controlled seat switch circuit inspectionSE-131
3. Climate controlled seat control unit inspection.SE-142
4. Replace climate controlled seat blower motor.SE-113
The climate controlled seat dose not operates when the
switch is done in HEAT or COOL.Climate controlled seat switch circuit inspection.SE-131
When the climate controlled seat switch is turned on,
operation stops at nose (When the climate controlled seat
switch is in HEAT or COOL mode after ignition switch is
turned ON again, the motor operates).1. Seat cushion thermal electric device sensor circuit
inspection.SE-1372. Seat cushion thermal electric device circuit inspectionSE-135
3. Seatback thermal electric device sensor circuit inspec-
tion.SE-139
4. Seatback thermal electric device circuit inspectionSE-136
5. Climate controlled seat blower motor circuit inspection.SE-140
6. Replace Climate controlled seat control unitSE-113
The climate controlled seat switch indicator do not oper-
ated with HEAT or COOL positionClimate controlled seat switch indicator circuit inspectionSE-133

CLIMATE CONTROLLED SEAT
SE-137
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
2. CHECK SEATBACK THERMAL ELECTRIC DEVICE HARNESS
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat control unit connector and seatback thermal electric device connector.
3. Check continuity between climate controlled seat control unit
connector and seatback thermal electric device connector.
4. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between climate controlled seat control unit and seatback thermal elec-
tric device.
Seat Cushion Thermal Electric Device Sensor Circuit InspectionNIS0027W
1. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK >> Climate controlled seat control unit circuit is OK.
NG >> GO TO 2.
AB
Continuity Climate
controlled seat
control unit
connectorTerminalSeatback thermal
electric device
connectorTerminal
B283
(driver side)
B293
(passenger side)15 B285
(driver side)
B295
(passenger side)4
Ye s
16 6
A
GroundContinuity
Climate controlled seat
control unit connectorTerminal
B283 (driver side)
B293 (passenger side)15
No
16
PIIB6083E
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Climate
controlled seat
control unit
connectorTe r m i n a l
B283
(driver side)
B293
(passenger side)22 GroundBlower motor
operated0.5 - 4
PIIB6084E