2007 NISSAN 350Z lock

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.

POWER SEAT/FOR ROADSTER
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Revision: 2006 November2007 350Z
MANUAL OPERATION
The seat positions can be adjusted by operating the sliding switch and reclining switch located on the side of
both driver and passenger seat cushions.
A U T O M AT I C O P E R AT I O N
Passenger Seatback Tilting Function

When the seatback tilt switch on the rear side of the passenger seatback is operated to tilt forward, the
seatback tilts forward to the front most position.

To tilt the seatback backward or restore its position, push the seatback tilt switch on the tilt-backward
direction. The seatback will be tilting backwards while the switch is operated. It can be moved backwards
until it reaches to its start position.
Conditions For the Operation
When the following conditions are satisfied, the seatback tilts forward or backward by operating the seatback
tilt switch.
*1: The operation will be stopped only while the reclining motor is operating.
Conditions for Stopping the Operation

Seatback tilting operation stops when any one of the conditions below is satisfied.
*2: Operation will be stopped only while the reclining motor is operating.
NOTE:
If operation stops as a result of the conditions below, use the reclining switch to tilt the seat backward.

A power seat switch (sliding or reclining) is operated.

The seat belt is fastened.

The seatback tilt cancel switch is turned to “CANCEL”.
Soft Top Interlocking Operation Function

The seatback tilts forward by approximately 6° (tilt froward operation) when the soft top opens or closes.

When open/close operation is completed, the seatback returns to the tilt start position (return operation).
Conditions for the Operation
When the soft top switch is pushed to OPEN or CLOSE, and all of the conditions below are satisfied, then the
seatback operates, linked with the operation of the soft top.
Conditions for the Pausing/Stopping Operation
Operation is paused or stopped if any of the conditions below are satisfied during soft top operation.
Conditions

Power seat switches (sliding and reclining) are OFF.

The seat belt is not fastened.

The vehicle speed is approximately 6 km/h or less.

The soft top is not currently in operation.*1

The ignition switch is not in the START position.

The seatback tilt cancel switch is in AUTO.
Conditions

A power seat switch (sliding or reclining) is operated.

The seat belt is fastened.

The vehicle speed is approximately 7 km/h or more.

The soft top is in operation. (Stops only tilt-forward operation.)*2

The seatback tilting switch is operated while the seatback is in operation.

The ignition switch is turned to the START position.

Reclining motor lock is detected.
Conditions

The power seat switches (sliding and reclining) are OFF.

The seatback tilt switch is OFF.

The vehicle speed is 6 km/h or less.

The ignition switch is ON.

The seatback tilt cancel switch is turned to AUTO.

SE-22
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
Seat Status Output Signal

Depending on the seat status, the “passenger seat control unit” sends the seat status output signal to the
“soft top control unit”.

The “soft top control unit” controls the soft top open/close operation based on whether the seat status sig-
nal is ON or OFF. For details about soft top control, refer to RF-19, "
Operation Chart" .
*3: After that, seat condition signal stays ON if cancel switch turns to AUTO.
The seat status signal turns ON only when power window DOWN signal input is ON.
*4: If tilt forward/backward operation stops as a result of the conditions below, the tilt start position does not change.

The vehicle speed is approximately 7 km/h or more.

The seatback tilt switch is operated while the seatback is operating.

The ignition switch is turned to the START position. Stop conditions

A power seat switch (sliding or reclining) is operated.

Reclining motor lock is detected (return operation only).

The seatback tilt switch is operated while the seatback is operating.

The seatback tilt cancel switch is turned to CANCEL.
Pause condition

The ignition switch is turned to the START position.
Seat status signal
OFF→ ON condition

When a seatback tilt forward motion has been completed.
(as a process during a soft top interlocking operation)

When a seatback tilt forward motion has been completed.
(during a automatic operation by using a seatback tilt switch)

When a seatback tilt forward permission condition is satisfied for a soft top interlocking operation, and a tilt
forward / backward operation is under going, and if the seatback is tilted more than 6 degree from the start
position of the tilt forward / backward operation.
(during a automatic operation by using a seatback tilt switch)

When a seatback tilt forward permission condition is satisfied for a soft top interlocking operation, and a tilt
forward operation was under going, but the operation was stopped under some conditions, (See below *4.)
and if the seatback is tilted more than 6 degree from the start position of the tilt forward operation.
(after an automatic operation by using a seatback tilt switch)

When a seatback tilt forward permission condition is satisfied for a soft top interlocking operation, and also
the seatback tilt cancel switch is in “Cancel” position.

When the ignition switch has been turned from “START” to “ON” position.
(during a soft top interlocking operation. After an engine start operation, the soft top interlocking operation is
accepted.)
Seat status signal
ON→ OFF condition

When a seatback tilt backward motion has been started.
(as a process during a soft top interlocking operation)

When a seatback tilt backward permission condition is satisfied for a soft top interlocking operation, after a
tilt forward operation has been finished.
(during a automatic operation by using a seatback tilt switch)

When a seatback tilt backward permission condition is satisfied for a soft top interlocking operation, and a tilt
forward / backward operation is under going, and if the seatback is tilted more than 6 degree from the start
position of the tilt forward / backward operation.
(during a automatic operation by using a seatback tilt switch)

When a seatback tilt backward permission condition is satisfied for a soft top interlocking operation, and a tilt
forward operation was under going, but the operation was stopped under some conditions, (See below *4.)
and if the seatback is still tilted more than 6 degree from the start position of the tilt forward operation.
(after an automatic operation by using a seatback tilt switch.)

When the ignition switch has been turned from “ON” to “START” position.
(during a soft top interlocking operation. During an engine start operation, the soft top interlocking operation
is paused.)

When a seatback tilt forward motion has been started by the seatback tilt switch, just after the seatback tilt
forward motion has been finished for a soft top interlocking operation.
(for the seatback tilt switch operation during a soft top interlocking operation)

When a seatback tilt forward motion has been started by the passenger seat reclining switch, just after the
seatback tilt forward motion has been finished for a soft top interlocking operation.
(for the seat reclining switch operation during a soft top interlocking operation)

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Revision: 2006 November2007 350Z
CANCEL FUNCTION
The seatback tilt cancel switch can be used to set following functions ON or OFF.

The seatback tilt forward/backward function

The soft top interlocking operation function
CAUTION:

If a child seat is installed, turn the seat tilt cancel switch OFF to disable the seatback tilt forward/
backward function and the soft top interlock operation function.
FAIL-SAFE MODE
If the power seat switch is not operated, nor the seat back tilt switch is not operated, nor the soft top interlock-
ing operation is not under operation, and if the passenger seat control unit detects a motor operation power
from the soft top control unit, the passenger seat control unit stops the motor by switching the motor power line
to ground.
Canceling Fail-Safe Mode

Disconnect and reconnect the battery terminal.

Disconnect and reconnect the passenger seat control unit connector.
Operation location
Sliding motor

Reclining motor

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

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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

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Revision: 2006 November2007 350Z
Terminals and Reference Values of Soft Top Control UnitNIS0009T
Terminals and Reference Values of Unified Meter and A/C Amp.NIS0009U
Work FlowNIS0009V
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SE-16, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-37,
"Trouble Diagnosis Symptom Chart" .
4. Does power seat system operate normally? If Yes, GO TO 5, If No, GO TO 3.
5. INSPECTION END.
Trouble Diagnosis Symptom ChartNIS0009W
Always check the “WORK FLOW” before troubleshooting. Refer to SE-37, "Work Flow" .
TerminalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
13 L/RStorage lid actuator RH
CLOSE signalInputWhen storage lid actuator is in a
closing operationBattery voltage
Other than above 0
34 L/W Seatback position signal InputWhen the seatback is tilted by the
interlocking operation with soft top0
Other than above 5
36 PU Power window down signal InputWhen soft top switch is turned to
ON0
Other than above 5
TerminalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
(Approx)
1 L CAN-HInput/
Output——
11 P C A N - LInput/
Output——
34 L Speed signal (2puls) InputSpeedometer is in operation
[When vehicle speed is approx. 40
km/h (25 MPH)]
PIIB0078J
Symptom Diagnosis / service procedure Refer to page
Power seat systems do not operate (Neither driver
side seat nor passenger side seat operation can be
performed).Check BCM power supply and ground circuit SE-38
Functions of a driver side power seat do not oper-
ate.Check driver side power seat power supply and ground
SE-40
A part of driver side power seat system does not
operate.1. Check driver side seat sliding motor circuit SE-41
2. Check driver side seat reclining motor circuit SE-42
All the passenger side power seat systems do not
operate.Check passenger seat control unit power supply and ground SE-44
A passenger seat does not a sliding operation. Check passenger side seat sliding motor circuit SE-45

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