2007 INFINITI M35 sensor

PRE-CRASH SEAT BELT
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Revision: 2007 April2007 M35/M45
3. CHECK SEAT BELT MOTOR RH
Check continuity between pre-crash seat belt motor RH.
OK or NG
OK >> Replace pre-crash seat belt control unit.
NG >> Replace pre-crash seat belt motor RH.
Check Brake Pedal Stroke Sensor Shield Wire Circuit NHS0008G
1. CHECK PRE-CRASH SEAT BELT INPUT SIGNAL
With CONSULT-II
Select “B PEDAL SIG1 and 2” on DATA MONITOR screen, and then
make sure that the voltage does not change if brake pedal is not
operated.
NOTE:
Diagnosis should be performed with engine running, audio and air
conditioner operating.
Without CONSULT-II
1. Start engine.
2. Check voltage between pre-crash seat belt harness connector.
OK or NG
OK >> Brake pedal stroke sensor shield wire circuit is OK.
NG >> Check shield wire for damage. Repair or replace if necessary.
Pre-crash seat belt
motor RH connectorTerminal Continuity
B422 1 2 Yes
PHIA1139E
B PEDAL SIG1
Brake released :There is no change in the voltage
value, and it is almost constant
B PEDAL SIG2
Brake released :There is no change in the voltage
value, and it is almost constant.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Pre-crash seat
belt control unit
connectorTerminal
B14216
GroundPerformed with
engine running, audio
and air conditioner
operating and brake
pedal released.There is no
change in the
voltage value,
and it is almost
constant 20
PHIA0766E
PHIA1141E

SEAT BELTS
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SEAT BELTSPFP:86884
System DescriptionNHS0008I
SEAT BELT WARNING CHIME

With ignition switch turned ON and seat belt unfastened (seat belt switch ON), warning chime will sound
for approximately 6 seconds.

If warning chime does not sound, refer to DI-73, "Seat Belt Buckle Switch Signal Inspection" .
SEAT BELT WARNING LAMP

Fasten driver's seat belt.

The seat belt warning lamp should go out.

If the seat belt warning lamp does not go out, refer to DI-42, "Wiring Diagram — WARN —" .
Removal and Installation of Front Seat Belt NHS0008J
CAUTION:
Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least 3
minutes.
REMOVAL OF SEAT BELT RETRACTOR
1. Remove the outer anchor.

Remove the belt tension sensor cover and cover protector (passenger side only).

Disconnect the belt tension sensor connector (passenger side only).

Remove the fixing bolt of the outer anchor.
1. Outer anchor 2. Shoulder anchor 3. Pre-tensioner seat belt retractor
4. Belt tension sensor cover (passen-
ger side only)5. Cover protector (passenger side
only)6. Belt tension sensor connector (pas-
senger side only)
7. Anchor bolt 8. Anchor nut 9. Seat belt pre-tensioner connector
10. Pre-crash seat belt connector 11. Bolt 12. Seat belt adjuster
PHIA1106E

SC-2
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS003NB
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Power Generation Voltage Variable Control SystemNKS003NC
CAUTION:
For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected directly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the ground wire directly to the battery terminal.

CHARGING SYSTEM
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POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
Power generation voltage variable control system that controls the power generation voltage of the alternator
has been adopted. By performing the power generation voltage variable control, the engine load due to the
power generation of the alternator is reduced and fuel consumption is decreased.
Operation Description

The battery current sensor detects the charging/discharging current of the battery. ECM judges the battery
condition based on this signal.

ECM judges whether to perform the power generation voltage variable control according to the battery
condition.

When performing the power generation voltage variable control, ECM calculates the target power genera-
tion voltage according to the battery condition and sends the calculated value as the power generation
command value to IPDM E/R.

IPDM E/R converts the received power generation command value into the power generation command
signal (PWM signal) and sends it to the IC regulator.

The IC regulator controls the power generation voltage by the target power generation voltage based on
the received power generation command signal.

When there is no power generation command signal, the alternator performs the normal power generation
according to the characteristic of the IC regulator.
NOTE:
When any malfunction is detected in the power generation voltage variable control system, the power genera-
tion is performed according to the characteristic of the IC regulator of the alternator.
Main Component Part
BATTERY CURRENT SENSOR

Battery current sensor (1) is installed to the battery cable at the
negative terminal, and it detects the charging/discharging cur-
rent of the battery and sends the voltage signal to ECM accord-
ing to the current value.
SKIB5009E
PKIB8806E

CHARGING SYSTEM
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3. CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1. Start engine, then engine running at idle and warm.
2. Check voltage between battery positive terminal and alternator
“B” terminal.
OK or NG
OK >> Go to SC-25, "Trouble Diagnosis with Starting/Charging
System Tester (Charging)" .
NG >> Check harness between battery and alternator for poor continuity.
Power Generation Voltage Variable Control System Operation InspectionNKS003NQ
CAUTION:

For this model, the battery current sensor that is installed to the battery cable at the negative ter-
minal measures the charging/discharging current of the battery, and performs various controls. If
the electrical component or the ground wire is connected directly to the battery terminal, the cur-
rent other than that being measured with the battery current sensor is charging to or discharging
from the battery. This condition causes the malfunction of the control, and then the battery dis-
charge may occur. Never connect the electrical component or the ground wire directly to the bat-
tery terminal.

When performing this inspection, always use the charged battery that completed the battery
inspection. (When the charging rate of the battery is low, the response speed of the voltage
change will become slow. This is a cause of an incorrect inspection.)
INSPECTION PROCEDURE
1. CHECK ECM (CONSULT-II)
Perform ECM self-diagnosis with CONSULT-II. Refer to the following.

VQ35DE: EC-123, "CONSULT-II Function (ENGINE)"

VK45DE: EC-826, "CONSULT-II Function (ENGINE)"
Self-diagnostic results content
No malfunction detected>> GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
Terminals
Voltage
(Approx.)
(+)(–)
Alternator “B” terminal Terminal
Battery positive
terminalE205 [VQ35DE (2WD)]
E202 [VQ35DE (AWD)/VK45DE]1 Less than 0.2 V
PKIB8810E

SE-1
SEAT
I BODY
CONTENTS
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SECTION SE
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SEAT
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Service Notice .......................................................... 3
Precautions for Work ................................................ 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINING ..................................... 8
SEATS ................................................................... 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
AUTOMATIC DRIVE POSITIONER ...........................11
Component Parts And Harness Connector Location
.... 11
System Description ................................................ 12
MANUAL OPERATION ....................................... 12
MEMORY OPERATION ...................................... 12
EXITING OPERATION ........................................ 14
ENTRY OPERATION .......................................... 14
INTELLIGENT KEY INTERLOCK OPERATION ... 15
FAIL-SAFE MODE .............................................. 15
INITIALIZATION PROCEDURE .......................... 16
SETTING CHANGE FUNCTION ......................... 16
CAN Communication System Description .............. 16CAN Communication Unit ....................................... 16
Schematic ............................................................... 17
Wiring Diagram — AUT/DP — ............................... 19
Terminals and Reference Values for BCM .............. 31
Terminals and Reference Value for Intelligent Key
Unit ......................................................................... 31
Terminals and Reference Values for Driver Seat
Control Unit ............................................................. 32
Terminals and Reference Values for Automatic
Drive Positioner Control Unit .................................. 34
CONSULT-II Function (AUTO DRIVE POS.) .......... 37
CONSULT-II START PROCEDURE .................... 37
SELF-DIAGNOSIS RESULTS ............................. 37
DATA MONITOR ................................................. 38
ACTIVE TEST ..................................................... 39
WORK SUPPORT ............................................... 39
Work Flow ............................................................... 40
Symptom Chart ....................................................... 40
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 42
Check BCM Power Supply and Ground Circuit ...... 42
Check Driver Seat Control Unit Power Supply and
Ground Circuit ........................................................ 43
Check Automatic Drive Positioner Control Unit
Power Supply and Ground Circuit .......................... 44
Check Sliding Motor Circuit .................................... 45
Check Reclining Motor Circuit ................................ 46
Check Front Lifting Motor Circuit ............................ 47
Check Rear Lifting Motor Circuit ............................. 49
Check Telescopic Motor Circuit .............................. 50
Check Tilt Motor Circuit .......................................... 51
Check Sliding Sensor Circuit .................................. 53
Check Reclining Sensor Circuit .............................. 55
Check Front Lifting Sensor Circuit .......................... 57
Check Rear Lifting Sensor Circuit .......................... 59
Check Telescopic Sensor Circuit ............................ 61
Check Tilt Sensor Circuit ........................................ 63
Check Door Mirror Sensor LH Circuit ..................... 64
Check Door Mirror Sensor RH Circuit .................... 67
Check Sliding Switch Circuit ................................... 69

SE-2Revision: 2007 April2007 M35/M45 Check Reclining Switch Circuit ............................... 71
Check Lifting Switch (Front) Circuit ........................ 73
Check Lifting Switch (Rear) Circuit ......................... 75
Check Power Seat Switch Ground Circuit .............. 76
Check Telescopic Switch Circuit ............................. 77
Check Tilt Switch Circuit ......................................... 79
Check Seat Memory and Set Switch Circuit ........... 81
Check Seat Memory Indicator Lamp Circuit ........... 82
Check Door Mirror Sensor Power Supply and
Ground Circuit ........................................................ 84
Check A/T Device (Detention Switch) Circuit ......... 86
Check Front Door Switch (Driver Side) Circuit ....... 87
Check UART Communication Line Circuit .............. 88
Check Lumbar Support Circuit ............................... 90
POWER SEAT(PASSENGER SIDE) ......................... 92
Schematic ............................................................... 92
Wiring Diagram — SEAT — .................................... 93
POWER SEAT(REAR) .............................................. 96
Component Parts and Harness Connector Location ... 96
System Description ................................................. 96
REAR POWER SEAT LH AND RH OPERATION ... 96
REAR SEAT RETREAT FUNCTION ................... 97
Schematic ............................................................... 98
Wiring Diagram — R/SEAT — ................................ 99
Terminals and Reference Values for Rear Seat Con-
trol Unit .................................................................103
Work Flow .............................................................104
Trouble Diagnoses Symptom Chart ......................104
Check Rear Power Seat Power Supply Circuit .....104
Check Rear Seat Control Unit Power Supply and
Ground Circuit ......................................................105
Check Rear Seat Sliding Motor Circuit .................106
Check Rear Power Seat Switch Circuit ................107
Check Automatic Return Cancel Switch Circuit ....109
Check Automatic Return Cancel Switch ...............110
Check Rear Door Switch Circuit ............................111
Check Rear Seat Sliding Sensor Circuit ...............112
CLIMATE CONTROLLED SEAT .............................114
Component Parts and Harness Connector Location .114
System Description ...............................................114
Schematic .............................................................118
Wiring Diagram — C/SEAT — ..............................119
Terminal and Reference Value for Climate Con-
trolled Seat Control Unit .......................................124
Work Flow .............................................................125
Trouble Diagnoses Symptom Chart ......................126
Preliminary Check ................................................126
Check Climate Controlled Seat Control Unit Power
Supply Circuit .......................................................127
Check Climate Controlled Seat Control Unit Power
Supply and Ground Circuit ...................................128
Check Climate Controlled Seat Switch Power Sup-ply Circuit ..............................................................131
Check Climate Controlled Seat Switch Circuit ......132
Check Climate Controlled Seat Switch Indicator Cir-
cuit ........................................................................134
Check Seat Cushion Thermal Electric Device Cir-
cuit ........................................................................136
Check Seatback Thermal Electric Device Circuit ..137
Check Seat Cushion Thermal Electric Device Sen-
sor Circuit ..............................................................138
Check Seatback Thermal Electric Device Sensor
Circuit ....................................................................140
Check Climate Controlled Seat Blower Motor Circuit .141
Check Climate Controlled Seat Control Unit .........143
HEATED SEAT ........................................................144
Component Parts and Harness Connector Location .144
System Description ...............................................144
Schematic .............................................................146
Wiring Diagram — HSEAT — ...............................147
Terminals and Reference Values for Rear Seat Con-
trol Unit ..................................................................152
Work Flow .............................................................152
Trouble Diagnoses Symptom Chart ......................152
Check Rear Heated Seat Power Supply and Ground
Circuit ....................................................................153
Check Rear Seat Control Unit Power Supply and
Ground Circuit .......................................................154
Check Rear Heated Seat Switch Circuit ...............156
Check Rear Heated Seat Indicator Power Supply
Circuit ....................................................................158
Check Rear Heated Seat Indicator Circuit ............159
Check Rear Heated Seat Circuit ...........................161
Check Rear Seatback Heater Circuit ....................162
FRONT SEAT ..........................................................164
Driver's Seat Components ....................................164
Passenger's Seat Components .............................166
Removal and Installation .......................................168
REMOVAL ..........................................................168
INSTALLATION ..................................................168
Disassembly and Assembly ..................................169
SEATBACK ........................................................169
SEAT CUSHION ................................................170
CLIMATE CONTROLLED SEAT ........................172
REAR SEAT .............................................................173
Bench Seat Components ......................................173
Power Seat (Split Type) Components ...................175
Removal and Installation .......................................177
BENCH SEAT ....................................................177
POWER SEAT ...................................................177
Disassembly and Assembly ..................................178
BENCH SEAT ....................................................178
POWER SEAT ...................................................180

AUTOMATIC DRIVE POSITIONER
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AUTOMATIC DRIVE POSITIONERPFP:28491
Component Parts And Harness Connector LocationNIS0025Q
PIIB6292E
1. Fuse block (J/B) 2. Fuse and fusible link box 3. BCM M1, M2, M3
(View with the glove box assembly
removed)
4. A. Automatic drive positioner control
unit M6, M7
B. Telescopic motor M45
C. Telescopic sensor M44
D. Tilt sensor M37
E. Tilt motor M36
(View with the driver lower panel
removed)5. A. Front lifting motor B209
B. Rear lifting motor B210
C. Driver seat control unit
B204,B205
D. Sliding motor B2076. Seat memory switch D9
7. A. Lumbar support switch B212
B. Reclining switch B213
C. Sliding/Lifting switch B2138. A. ADP steering switch M46
B. Key slot M14
C. Door mirror control switch M959. Reclining motor B208