2007 NISSAN 350Z sensor

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SEAT
I BODY
CONTENTS
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Revision: 2006 November2007 350Z
SEAT
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Service Notice .......................................................... 3
Precautions for Battery Service ................................ 3
Precautions for Work ................................................ 3
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 6
Work Flow ................................................................ 6
CUSTOMER INTERVIEW ..................................... 6
DUPLICATE THE NOISE AND TEST DRIVE ....... 7
CHECK RELATED SERVICE BULLETINS ........... 7
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 7
REPAIR THE CAUSE ........................................... 7
CONFIRM THE REPAIR ....................................... 8
Generic Squeak and Rattle Troubleshooting ........... 8
INSTRUMENT PANEL .......................................... 8
CENTER CONSOLE ............................................. 8
DOORS ................................................................. 8
TRUNK .................................................................. 9
SUNROOF/HEADLINING ..................................... 9
SEATS ................................................................... 9
UNDERHOOD ....................................................... 9
Diagnostic Worksheet ............................................ 10
POWER SEAT/FOR COUPE .................................... 12
Wiring Diagram–SEAT– /For Driver Seat ............... 12
Wiring Diagram–SEAT– /For Passenger Seat ....... 14
POWER SEAT/FOR ROADSTER ............................. 15
Component Parts and Harness Connector Location ... 15
System Description ................................................ 16
DRIVER SIDE SEAT OPERATION ..................... 16
PASSENGER SIDE SEAT MANUAL OPERA-
TION .................................................................... 17
PASSENGER SEATBACK TILT FORWARD/
BACKWARD OPERATION .................................. 18
INTERLOCKING OPERATION OF THE PAS-SENGER SEAT WITH THE SOFT TOP .............. 19
PASSENGER SIDE RECLINING MOTOR
OPERATION ........................................................ 20
SEATBACK TILT CANCEL SWITCH OPERA-
TION .................................................................... 20
MANUAL OPERATION ........................................ 21
AUTOMATIC OPERATION .................................. 21
CANCEL FUNCTION .......................................... 25
FAIL-SAFE MODE ............................................... 25
Wiring Diagram–SEAT– / For Driver Seat .............. 26
Schematic / For Passenger Seat ............................ 28
Wiring Diagram–SEAT– / For Passenger Seat ....... 29
Terminals and Reference Values of Passenger Seat
Control Unit ............................................................. 34
Terminals and Reference Values of BCM ............... 35
Terminals and Reference Values of Soft Top Control
Unit ......................................................................... 37
Terminals and Reference Values of Unified Meter
and A/C Amp. ......................................................... 37
Work Flow ............................................................... 37
Trouble Diagnosis Symptom Chart ......................... 37
Check BCM Power Supply and Ground ................. 38
Check Driver Side Seat Power Supply and Ground ... 40
Check Driver Side Seat Sliding Motor Circuit ......... 41
Check Driver Side Seat Reclining Motor Circuit ..... 42
Check Passenger Seat Control Unit Power Supply
and Ground ............................................................. 44
Check Passenger Seat Control Unit Ignition Signal
Circuit ..................................................................... 44
Check Passenger Side Seat Sliding Motor Circuit ... 45
Check Passenger Side Seat Reclining Motor Circuit ... 46
Check Passenger Side Seat Reclining Sensor Cir-
cuit .......................................................................... 47
Check Passenger Side Seat Sliding Switch Circuit ... 48
Check Passenger Side Seat Reclining Switch Cir-
cuit .......................................................................... 49
Check Passenger Side Power Seat Switch Ground
Circuit ..................................................................... 50
Check Seatback Tilt Switch Circuit ......................... 51
Check Seatback Tilt Cancel Switch Circuit ............. 52

SE-20
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
power is supplied simultaneously

through passenger seat control unit terminal 42

to reclining motor terminal 42
Then ground is supplied

to reclining motor terminal 35

through passenger seat control unit terminal 35
Then, a seat folds 6° forward.
When soft top lock switch (5th bow full latch switch) is turned ON, soft top control unit transmits a soft top lock
signal to passenger seat control unit,
ground is supplied

to passenger seat control unit terminal 11

through soft top lock switch (5th bow full latch switch) terminal 3

through soft top lock switch (5th bow full latch switch) terminal 4

through body ground B5, B6 and T14.
When passenger seat control unit receives soft top lock switch ON signal,
power is supplied simultaneously

through passenger seat control unit terminal 35

to reclining motor terminal 35
Then ground is supplied

to reclining motor terminal 42

through passenger seat control unit terminal 42.
The passenger side seat returns to former position.
PASSENGER SIDE RECLINING MOTOR OPERATION
When a passenger side seat reclining motor is operated,
signal is transmitted

to passenger seat control unit terminal 3

through reclining motor terminal 3

through reclining motor terminal 41

through passenger seat control unit terminal 41.
Then passenger seat control unit judges seatback angle by receiving reclining sensor signal.
SEATBACK TILT CANCEL SWITCH OPERATION
When a passenger side seatback tilt cancel switch is operated to CANCEL,
ground is supplied

to passenger seat control unit terminal 7

through seatback tilt cancel switch terminal 7

through seatback tilt cancel switch terminal 40C

through body ground B5, B6 and T14.
Then passenger seat control unit recognizes the CANCEL signal.
When a “seatback tilt cancel switch” is operated to CANCEL, the automatic operation of a passenger seat is
not performed.

SE-34
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
Terminals and Reference Values of Passenger Seat Control UnitNIS0009R
TerminalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
1 W Ignition switch START power supply InputIgnition switch (START
position)Battery voltage
2 L Ignition switch ON power supply InputIgnition switch
(ON or START position)Battery voltage
3 Y Reclining sensor input signal InputWhen reclining motor is
operated
Other than above 0 or 5
4 PU Vehicle speed signal (2puls) InputSpeedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)]
5 R Soft top switch OPEN signal InputWhen soft top switch is
turned to OPEN0
Other than above Battery voltage
6 GY Soft top switch CLOSE signal InputWhen soft top switch is
turned to CLOSE0
Other than above Battery voltage
7 P Seatback tilt cancel switch signal InputWhen seatback tilt cancel
switch is turned to AUTO5
When seatback tilt cancel
switch is turned to CAN-
CEL0
8BRSeatback tilt switch
FORWARD signalInputWhen seatback tilt switch
is turned to FORWARD0
Other than above Battery voltage
9LGSeatback tilt switch
BACKWARD signalInputWhen seatback tilt switch
is turned to BACKWARD0
Other than above Battery voltage
10 L/Y Seat belt buckle switch signal InputWhen seat belt is fastened
(OFF)5
When seat belt is unfas-
tened (ON)0
11 L / WSoft top lock switch
(5th bow full latch switch) signalInput5th bow full latch switch:
ON0
5th bow full latch switch:
OFF5
12 ORReclining switch
FORWARD signalInputWhen power seat reclining
switch is turned to FOR-
WARD0
Other than above Battery voltage
SIIA0692J
PIIB0078J

POWER SEAT/FOR ROADSTER
SE-35
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Revision: 2006 November2007 350Z
Terminals and Reference Values of BCMNIS0009S
13 GReclining switch
BACKWARD signalInputWhen power seat reclining
switch is turned to BACK-
WARD0
Other than above Battery voltage
14 YSliding switch
FORWARD signalInputWhen power seat sliding
switch is turned to FOR-
WARD0
Other than above Battery voltage
15 SBSliding switch
BACKWARD signalInputWhen power seat sliding
switch is turned to BACK-
WARD0
Other than above Battery voltage
16 PU/W Power window down signal InputWhen soft top switch is
turned to ON0
Other than above 5
32 G/W Seatback position signal InputWhen the seatback is tilted
by the interlocking opera-
tion with soft top0
Other than above 5
33 G/BStorage lid actuator RH
CLOSE signalInputWhen storage lid actuator
is in a closed operationBattery voltage
Other than above 0
34 R/W Battery power supply (control unit) Input — Battery voltage
35 GReclining motor
BACKWARD outputOutputReclining switch backward
operation (Motor operated)Battery voltage
Other than above 0
37 SBSliding motor
BACKWARD outputOutputSliding switch backward
operation
(Motor operated)Battery voltage
Other than above 0
39 R Battery power supply (power) Output — Battery voltage
40 B/W Ground (control unit) — — 0
41 Y/B Ground (sensor) — — 0
42 ORReclining motor
FORWARD outputOutputReclining switch forward
operation (Motor operated)Battery voltage
Other than above 0
45 YSliding motor
FORWARD outputOutputSliding switch forward
operation (Motor operated)Battery voltage
Other than above 0
48 B Ground (power) — — 0 Te r m i n a lWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
TerminalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
42 GY Battery power supply (Fuse) Input — Battery voltage
52 B Ground — — 0

SE-38
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
Check BCM Power Supply and Ground NIS0009X
1. CHECK FUSE

Check 40A fusible link (letter F located in the fuse and fusible link box).

Check 10A fuse [No.18, located in the fuse block (J/B)]
NOTE:
Refer to SE-15, "
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-
4, "POWER SUPPLY ROUTING CIRCUIT" .
A passenger seat does not carry out a reclining
operation (Neither manual operation nor an auto-
matic operation can be performed).Check passenger side seat reclining motor circuit SE-46
The automatic operation of a passenger seat can
not be performed (a manual operation can be per-
formed).1. Check passenger side seat reclining sensor circuit SE-472. Check seatback tilt cancel switch circuit SE-52
3. If the above systems are normal, replace passenger seat
control unit.SE-15
A passenger seat operates automatically when the
vehicle is running.Check vehicle speed signal SE-57
Passenger seatback does not return during a soft
top CLOSE operation.Check soft top lock switch circuit SE-55
Passenger seatback does not tilt forward and
return during a soft top OPEN operation.Check storage lid close signal circuit SE-55
Passenger seatback does not tilt forward during a
soft top CLOSE operation or OPEN operation.1. Check power window down request signal circuit SE-542. Check soft top switch circuit SE-53
3. If the above systems are normal, replace passenger seat
control unit.SE-15
Seat does not tilt when passenger seatback tilt
switch is pushed (other functions operate nor-
mally).1. Check seatback tilt switch circuit SE-512. Check seat belt buckle switch circuit SE-56
3.If the above systems are normal, replace passenger seat
control unitSE-15
A part of passenger seat system does not operate
(only manual).1. Check passenger side seat sliding switch circuit SE-48
2. Check passenger side seat reclining switch circuit SE-49
Passenger seatback dose not go back to the origi-
nal position during a soft top CLOSE or OPEN
operation.Check passenger seat control unit ignition signal circuit SE-44
The manual operation of a passenger seat cannot
be performed (a automatic operation can be per-
formed).Check passenger side power seat ground circuit SE-50
Symptom Diagnosis / service procedure Refer to page

POWER SEAT/FOR ROADSTER
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Revision: 2006 November2007 350Z
Check Passenger Side Seat Reclining Sensor Circuit NIS000A5
1. CHECK RECLINING SENSOR OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between passenger seat control unit connector and ground, with oscilloscope.
OK or NG
OK >> Passenger side seat reclining motor circuit is OK.
NG1 >> When voltage waveform dose not appear with a constant voltage (approx. 5V), GO TO 3.
NG2 >> When voltage waveform dose not appear with a constant voltage (approx. 0V), GO TO 2.
2. CHECK RECLINING SENSOR CIRCUIT HARNESS
1. Disconnect passenger seat control unit connector.
2. Check continuity between passenger seat control unit connector
B354 terminal 3, 41 and ground.
OK or NG
OK >> Replace passenger seat control unit.
NG >> Repair or replace harness between passenger seat con-
trol unit and reclining motor.
3. CHECK RECLINING SENSOR CIRCUIT HARNESS
1. Disconnect passenger seat control unit connector.
2. Check continuity between passenger seat control unit connector
B354 terminal 3, 41 and reclining motor connector B358 termi-
nal 3, 41.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between passenger seat con-
trol unit and reclining motor.
Con-
nectorTerminal
(Wire color)
ConditionSignal
(Reference value)
(+) (-)
B353 3 (Y) GroundWhen reclining
motor is oper-
ated.
PIIA7761ESIIA0692J
3 (Y) - Ground : Continuity should not exist.
41 (Y/B) - Ground : Continuity should not exist.
PIIA7853E
3 (Y) - 3 (Y) : Continuity should exist.
41 (Y/B) - 41 (Y/B) : Continuity should exist.
PIIA7760E

SE-48
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
4. CHECK RECLINING SENSOR GROUND CIRCUIT
1. Connect passenger seat control unit connector.
2. Check continuity between passenger seat control unit connector
B354 terminal 41and ground.
OK or NG
OK >> Replace reclining motor.
NG >> Replace passenger seat control unit.
Check Passenger Side Seat Sliding Switch Circuit NIS000A6
1. CHECK SLIDING SWITCH OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Sliding switch operated, check voltage between passenger seat control unit connector and ground.
OK or NG
OK >> Replace passenger seat control unit.
NG >> GO TO 2.
2. CHECK SLIDING SWITCH CIRCUIT HARNESS
1. Disconnect passenger seat control unit connector and power seat switch connector.
2. Check continuity between passenger seat control unit connector
B353 terminal 14, 15 and power seat switch connector B357 ter-
minal 14, 15.
3. Check continuity between passenger seat control unit connector
B353 terminal 14, 15 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between passenger seat control unit and power seat switch.41 (Y/B) - Ground : Continuity should exist.
PIIB1166E
ConnectorTerminal
(Wire color)
Sliding switch conditionVoltage (V)
(Approx.)
(+) (-)
B35314 (Y)
GroundFORWARD 0
Other than above Battery voltage
15 (SB)BACKWARD 0
Other than above Battery voltage
PIIA7766E
14 (Y) - 14 (Y) : Continuity should exist.
15 (SB) - 15 (SB) : Continuity should exist.
14 (Y) - Ground : Continuity should not exist.
15 (SB) - Ground : Continuity should not exist.
PIIA7767E