ignition NISSAN 350Z 2007 Z33 Seat Workshop Manual

SE-1
SEAT
I BODY
CONTENTS
C
D
E
F
G
H
J
K
L
M
SECTION SE
A
B
SE
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-16
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
System DescriptionNIS0009N
Power is supplied at all times,

through 40A fusible link (letter F , located in the fusible link)

to BCM terminal 55,

through 10A fuse [No.18, located in the fuse block (J/B)]

to BCM terminal 42,

through BCM terminal 41,

to passenger seat control unit terminal 34,

through BCM terminal 54

to driver side power seat switch terminal 1 and passenger seat control unit terminal 39.
When ignition switch in ON or START position,
power is supplied

thought 10A fuse [No. 12, located in the fuse block (J/B)]

to passenger seat control unit terminal 2.
When ignition switch in START position,
power is supplied

thought 10A fuse [No. 9, located in the fuse block (J/B)]

to passenger seat control unit terminal 1.
ground supplied

to BCM terminal 52

through body grounds M30 and M66,

to passenger side seat control unit terminals 40, 48

through body grounds B5, B6 and T14.
DRIVER SIDE SEAT OPERATION
When a driver side seat sliding switch is operated forward,
power is supplied

through power seat switch terminal 5

to sliding motor terminal 5.
Then ground is supplied

to sliding motor terminal 6

through power seat switch terminal 6

through power seat switch terminal 2
The driver side seat moves forward.
When a driver side seat sliding switch is operated backward,
power is supplied

through power seat switch terminal 6

to sliding motor terminal 6.
Then ground is supplied

to sliding motor terminal 5

through power seat switch terminal 5
PIIA9747E

POWER SEAT/FOR ROADSTER
SE-21
C
D
E
F
G
H
J
K
L
MA
B
SE
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)

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

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
SE-39
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 November2007 350Z
2. CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM connector M91 terminal 42, 55
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace the harness between BCM and fusible
link.
3. CHECK BCM GROUND CIRCUIT
Check continuity between BCM connector M91 terminal 52 and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace the harness between BCM and
ground.
4. CHECK BCM OUTPUT POWER SUPPLY CIRCUIT
1. Disconnect power seat switch and passenger seat control unit connector.
2. Check continuity between BCM connector M91 terminal 54 and
power seat switch connector B326 terminal 1.
3. Check continuity between BCM connector M91 terminal 54 and
passenger seat control unit connector B354 terminal 39.
4. Check continuity between BCM connector M91 terminal 54 and
ground.
OK or NG
OK >> GO TO 5.
NG >> Replace harness between BCM and power seat switch or passenger seat control unit.42 (GY) - Ground : Battery voltage
55 (R) - Ground : Battery voltage
PIIA6374E
52 (B) - Ground : Continuity should exist.
PIIA9131E
54 (W) - 1 (R) : Continuity should exist.
54 (W) - 39 (R) : Continuity should exist.
54 (W) - Ground : Continuity should not exist.
PIIB1159E

SE-40
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
5. CHECK BCM OUTPUT POWER SUPPLY
1. Connect BCM connector.
2. Check voltage between BCM connector M91 terminal 54 and
ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace BCM.
Check Driver Side Seat Power Supply and Ground NIS0009Y
1. CHECK POWER SEAT SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect power seat switch connector.
3. Check voltage between power seat switch connector B326 ter-
minal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK BCM OUTPUT POWER SUPPLY CIRCUIT
1. Disconnect passenger seat control unit connector.
2. Check continuity between BCM connector M91 terminal 54 and
power seat switch connector B326 terminal 1.
3. Check continuity between BCM connector M91 terminal 54 and
ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace harness between BCM and power seat switch.54 (W) - Ground : Battery voltage
PIIB1160E
1 (R) - Ground : Battery voltage
PIIA7741E
54 (W) - 1 (R) : Continuity should exist.
54 (W) - Ground : Continuity should not exist.
PIIB1161E

POWER SEAT/FOR ROADSTER
SE-41
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 November2007 350Z
3. CHECK POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between power seat switch connector B326 termi-
nal 2 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace the harness between power seat
switch and ground.
Check Driver Side Seat Sliding Motor Circuit NIS0009Z
1. CHECK SLIDING MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect sliding motor connector.
3. Sliding switch operate, check voltage between sliding motor connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK POWER SEAT SWITCH 1
1. Disconnect power seat switch connector.
2. Sliding switch operate, check continuity between power seat switch terminal 5, 6 and 2.
OK or NG
OK >> Replace sliding motor.
NG >> Replace power seat switch.2 (B) - Ground : Continuity should exist.
PIIA7742E
ConnectorTerminal
(Wire color)
Sliding switch conditionVoltage (V)
(Approx.)
(+) (-)
B3375 (Y)
GroundFORWARD Battery voltage
Other than above 0
6 (SB)BACKWARD Battery voltage
Other than above 0
PIIA7743E
Terminals Sliding switch condition Continuity
5
2BACKWARD Yes
Other than above No
6FORWARD Yes
Other than above No
PIIA7747E

SE-42
POWER SEAT/FOR ROADSTER
Revision: 2006 November2007 350Z
3. CHECK SLIDING MOTOR CIRCUIT HARNESS
1. Disconnect power seat switch connector.
2. Check continuity between power seat switch connector B326
terminal 5, 6 and sliding motor connector B337 terminal 5, 6.
3. Check continuity between power seat switch connector B326
terminal 5, 6 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between power seat switch and sliding motor.
4. CHECK POWER SEAT SWITCH 2
Check continuity between power seat switch as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch.
Check Driver Side Seat Reclining Motor Circuit NIS000A0
1. CHECK RECLINING MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect reclining motor connector.
3. Reclining switch operate, check voltage between reclining motor connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.5 (Y) - 5 (Y) : Continuity should exist.
6 (SB) - 6 (SB) : Continuity should exist.
5 (Y) - Ground : Continuity should not exist.
6 (SB) - Ground : Continuity should not exist.
PIIA7748E
Terminals Sliding switch condition Continuity
5
1FORWARD Yes
Other than above No
6BACKWARD Yes
Other than above No
PIIA7739E
ConnectorTerminal
(Wire color)
Reclining switch conditionVoltage (V)
(Approx.)
(+) (-)
B3363 (OR)
GroundFORWARD Battery voltage
Other than above 0
4 (G)BACKWARD Battery voltage
Other than above 0
PIIB1162E