Motor INFINITI M35 2006 Factory Service Manual

SE-90
AUTOMATIC DRIVE POSITIONER
Revision: 2006 January2006 M35/M45
3. CHECK LUMBER SUPPORT MOTOR HARNESS
1. Disconnect lumber support motor connector.
2. Check continuity between lumber support switch connector and
lumber support motor connector.
3. Check continuity between lumber support switch connector and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK LUMBER SUPPORT SWITCH GROUND CIRCUIT
Check continuity between lumber support switch connector and
ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between lumber support
switch and ground.
AB
Continuity
Lumbar support
switch connectorTe r m i n a lLumbar support
motor connectorTerminal
B21257
B21157
Ye s
58 58
A
GroundContinuity
Lumbar support switch
connectorTerminal
B21257
No
58
PIIB6206E
Lumbar support switch
connectorTerminal
GroundContinuity
B212 56 Yes
PIIB6207E

POWER SEAT(PASSENGER SIDE)
SE-91
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
POWER SEAT(PASSENGER SIDE)PFP:87050
Component Parts and Harness Connector LocationNIS0026Z
PIIB5888E
1. Fuse block (J/B) 2.Fuse, fusible link and relay block (J/
B)3.BCM M2
(View with the glove box cover
removed)
4.Power seat switch B255
a: Reclining switch
b: Sliding and lifting switch5.a: Sliding motor M264
b: Lifting motor M2666. Reclining motor M263

POWER SEAT(REAR)
SE-95
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
POWER SEAT(REAR)PFP:88010
Component Parts and Harness Connector LocationNIS00272
System DescriptionNIS00273
The rear power seat (LH / RH) retreats when the auto return cancel switch is turned on and each door is
opened.
When the rear power seat switch turned on, or auto return cancel switch is canceled, an auto return is discon-
tinued.
Power is all time supplied
through 50A fusible link [letter F, located in the fuse block (J/B)],
to rear LH seat control unit, rear RH seat control unit terminal 1.
REAR POWER SEAT LH AND RH OPERATION
When rear power seat switch is forward, ground is supplied
to rear seat control unit terminal 10,
through rear power seat switch terminal 2,
through rear power seat switch terminal 3,
through body grounds B5, B40, B131.
When rear seat control unit receives power seat switch forward signal, power is supplied
through rear seat control unit terminal 2,
to rear seat sliding motor terminal 3.
PIIB5889E
1.Fuse, fusible link and relay block
(J/B)2.a: Rear power seat switch LH B504
b: Automatic return cancel switch
B508
c: Rear power seat switch RH B5553.Rear seat control unit
B303, B304 (LH) B353, B354 (RH)
(View with the rear seatback
removed)
4.Rear seat sliding motor
B311 (LH), B361 (RH)
(View with the rear seat cushion
removed)5.Rear door switch
B53 (LH), B403 (RH)

SE-96
POWER SEAT(REAR)
Revision: 2006 January2006 M35/M45
Then ground is supplied
through rear seat sliding motor terminals 5,
through body grounds B5, B40, B131.
When power and ground are supplied, rear power seat slide moves forward.
When rear power seat switch is backward, ground is supplied
to rear seat control unit terminal 15,
through rear power seat switch terminal 1,
through rear power seat switch terminal 3,
through body grounds B5, B40, B131.
When rear seat control unit receives power seat switch backward signal, power is supplied
to rear seat control unit terminal 7,
through rear seat sliding motor terminal 4.
Then ground is supplied
through rear seat sliding motor terminals 5,
through body grounds B5, B40, B131.
When power and ground are supplied, rear power seat slide moves backward.
REAR SEAT RETREAT FUNCTION
When rear door open, ground is supplied
to rear seat control unit terminal 16,
through rear door switch terminal 2,
When rear seat control unit receives automatic return cancel switch ON and rear door switch open signal,
power is supplied
through rear seat control unit terminal 7,
to rear seat sliding motor terminal 4.
Then ground is supplied
through rear seat sliding motor terminals 5,
through body grounds B5, B40, B131.
When power and ground are supplied, rear power seat slide moves backward.
When rear seat sliding motor is operated, ground is supplied
to rear seat control unit terminal 12,
through rear seat sliding motor terminal 1,
through rear seat sliding motor terminal 2,
through rear seat control unit terminal 19,
through rear seat control unit terminals 13,
through body grounds B5, B40, B131.
Then rear seat control unit receives rear power seat sliding sensor signal.
The rear power seat control unit controls the seat position of the system operation with the signal.

SE-102
POWER SEAT(REAR)
Revision: 2006 January2006 M35/M45
Terminals and Reference Values for Rear Seat Control Unit NIS00276
TerminalWire
ColorItem ConditionVoltage (V)
(Approx.)
1 R Power source (BAT) — Battery voltage
2 R/W Sliding motor forward signalWhen sliding switch forward is operated Battery voltage
Other than above 0
7 W/R Sliding motor backward signalWhen sliding switch backward is operated Battery voltage
Other than above 0
8 B/L Ground (power) — 0
10 Y/B Sliding switch forward signalWhen sliding switch forward is operated. 0
Other than above. Battery voltage
11 Y/R Cancel switch signalCancel switch ON 5
Cancel switch CANCEL 0
12 Y/GSliding sensor signalSliding device active
Sliding device inactive 0 or 5
13 B/Y Ground (signal) — 0
15 L/R Sliding switch backward signalWhen sliding switch backward is operated. 0
Other than above Battery voltage
16 L/B Rear door switch signalRear door open (ON) 0
Rear door close (OFF) Battery voltage
19 Y Sensor ground — 0
SIIA0690J

POWER SEAT(REAR)
SE-103
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
Work FlowNIS00277
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SE-95, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-103,
"Trouble Diagnoses Symptom Chart" .
4. Does rear power seat operate normally? YES: GO TO 5, NO: GO TO 4.
5. INSPECTION END.
Trouble Diagnoses Symptom ChartNIS00278
Check that other systems using the signal of the following systems operate normally.
Rear Power Seat Power Supply Circuit InspectionNIS00279
1. CHECK FUSIBLE LINK
Check 50A fusible link (letter F located in the fuse and fusible link box).
NOTE:
Refer to SE-95, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK CIRCUIT BREAKER
Check circuit breaker.
NOTE:
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace the circuit breaker.
Symptom Diagnoses / service procedure Refer to page
Rear power seat LH, RH do not operate. Rear power seat power supply circuit inspectionSE-103
Rear power seat LH or RH sliding switch does not operate
moreover, retreat function does not operate if the door is
opened1. Rear seat control unit power supply and
ground circuit inspectionSE-104
2. Rear seat sliding motor circuit inspectionSE-105
Rear power seat LH or RH does not operate, but retreat func-
tion operates when the door is openedRear power seat switch circuit inspectionSE-106
Rear power seat LH and RH retreat function does not operate,
but operates by sliding switchAutomatic return cancel switch inspectionSE-109
Rear power seat LH or RH retreat function does not operate,
but operates by a sliding switch1. Rear door switch circuit inspectionSE-1102. Automatic return cancel switch circuit inspec-
tionSE-108
3. Rear seat sliding sensor circuit inspectionSE-111

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