wiring INFINITI M35 2007 Factory Service Manual

GI-30
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Revision: 2007 April2007 M35/M45
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under seating areas, inspect wire routing for possible damage or
pinching.
Heat Sensitive
The customer's concern may occur during hot weather or after car
has sat for a short time. In such cases you will want to check for a
heat sensitive condition.
To determine if an electrical component is heat sensitive, heat the
component with a heat gun or equivalent.
Do not heat components above 60°C (140°F). If incident occurs
while heating the unit, either replace or properly insulate the compo-
nent.
Freezing
The customer may indicate the incident goes away after the car
warms up (winter time). The cause could be related to water freezing
somewhere in the wiring/electrical system.
There are two methods to check for this. The first is to arrange for
the owner to leave his car overnight. Make sure it will get cold
enough to demonstrate his complaint. Leave the car parked outside
overnight. In the morning, do a quick and thorough diagnosis of
those electrical components which could be affected.
The second method is to put the suspect component into a freezer
long enough for any water to freeze. Reinstall the part into the car
and check for the reoccurrence of the incident. If it occurs, repair or
replace the component.
Water Intrusion
The incident may occur only during high humidity or in rainy/snowy
weather. In such cases the incident could be caused by water intru-
sion on an electrical part. This can be simulated by soaking the car
or running it through a car wash.
Do not spray water directly on any electrical components.
Electrical Load
The incident may be electrical load sensitive. Perform diagnosis with
all accessories (including A/C, rear window defogger, radio, fog
lamps) turned on.
SGI842
SGI843
SGI844
SGI845

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Cold or Hot Start Up
On some occasions an electrical incident may occur only when the car is started cold, or it may occur when
the car is restarted hot shortly after being turned off. In these cases you may have to keep the car overnight to
make a proper diagnosis.
CIRCUIT INSPECTION
Introduction
In general, testing electrical circuits is an easy task if it is approached in a logical and organized method.
Before beginning it is important to have all available information on the system to be tested. Also, get a thor-
ough understanding of system operation. Then you will be able to use the appropriate equipment and follow
the correct test procedure.
You may have to simulate vehicle vibrations while testing electrical components. Gently shake the wiring har-
ness or electrical component to do this.
NOTE:
Refer to “How to Check Terminal” to probe or check terminal.
Testing for “Opens” in the Circuit
Before you begin to diagnose and test the system, you should rough sketch a schematic of the system. This
will help you to logically walk through the diagnosis process. Drawing the sketch will also reinforce your work-
ing knowledge of the system.
CONTINUITY CHECK METHOD
The continuity check is used to find an open in the circuit. The digital multimeter (DMM) set on the resistance
function will indicate an open circuit as over limit (no beep tone or no ohms symbol). Make sure to always start
with the DMM at the highest resistance level.
To help in understanding the diagnosis of open circuits, please refer to the previous schematic.

Disconnect the battery negative cable.

Start at one end of the circuit and work your way to the other end. (At the fuse block in this example)

Connect one probe of the DMM to the fuse block terminal on the load side.

Connect the other probe to the fuse block (power) side of SW1. Little or no resistance will indicate that
portion of the circuit has good continuity. If there were an open in the circuit, the DMM would indicate an
over limit or infinite resistance condition. (point A)

Connect the probes between SW1 and the relay. Little or no resistance will indicate that portion of the cir-
cuit has good continuity. If there were an open in the circuit, the DMM would indicate an over limit or infi-
nite resistance condition. (point B)

Connect the probes between the relay and the solenoid. Little or no resistance will indicate that portion of
the circuit has good continuity. If there were an open in the circuit, the DMM would indicate an over limit or
infinite resistance condition. (point C)
Any circuit can be diagnosed using the approach in the previous example.
OPEN A circuit is open when there is no continuity through a section of the circuit.
SHORTThere are two types of shorts.

SHORT CIRCUITWhen a circuit contacts another circuit and causes the normal resistance to
change.

SHORT TO GROUND When a circuit contacts a ground source and grounds the circuit.
SGI846-A

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: 2007 April2007 M35/M45
no voltage; short is further down the circuit than SW1.

With SW1 closed, relay and solenoid disconnected and the DMM leads across both fuse terminals, check
for voltage.
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.

With SW1 closed, relay contacts jumped with fused jumper wire check for voltage.
voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
Ground Inspection
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drasti-
cally affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit. Even
when the ground connection looks clean, there can be a thin film of rust on the surface.
When inspecting a ground connection follow these rules:

Remove the ground bolt or screw.

Inspect all mating surfaces for tarnish, dirt, rust, etc.

Clean as required to assure good contact.

Reinstall bolt or screw securely.

Inspect for “add-on” accessories which may be interfering with the ground circuit.

If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one
eyelet make sure no ground wires have excess wire insulation.
For detailed ground distribution information, refer to “Ground Distribution” in PG section.
Voltage Drop Tests
Voltage drop tests are often used to find components or circuits which have excessive resistance. A voltage
drop in a circuit is caused by a resistance when the circuit is in operation.
Check the wire in the illustration. When measuring resistance with DMM, contact by a single strand of wire will
give reading of 0 ohms. This would indicate a good circuit. When the circuit operates, this single strand of wire
is not able to carry the current. The single strand will have a high resistance to the current. This will be picked
up as a slight voltage drop.
Unwanted resistance can be caused by many situations as follows:

Undersized wiring (single strand example)

Corrosion on switch contacts

Loose wire connections or splices.
SGI853

CONSULT-II CHECKING SYSTEM
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2. If necessary, turn on the ignition switch.
3. Touch “START (NISSAN BASED VHCL)” or “System Shortcut”
(ex: ENGINE) on the screen.
4. Touch necessary system on “SELECT SYSTEM” screen.
If necessary system is not indicated, check power supply and
ground of system control unit. If it is normal, refer to GI-39,
"CONSULT-II Data Link Connector (DLC) Circuit" .
5. Select the desired part to be diagnosed on the “SELECT DIAG
MODE” screen.
CONSULT-II Data Link Connector (DLC) CircuitNAS0007X
INSPECTION PROCEDURE
If the CONSULT-II cannot diagnose the system properly, check the following items.
NOTE:
The DDL1 and DDL2 circuits from DLC pins 12, 13, 14 and 15 may be connected to more than one system. A
short in a DDL circuit connected to a control unit in one system may affect CONSULT-II access to other sys-
tems.
SAIA0450E
BCIA0030E
BCIA0031E
Symptom Check item
CONSULT-II cannot access
any system.

CONSULT-II DLC power supply circuit (Terminal 8) and ground circuit (Terminal 4) (For detailed
circuit, refer to “MIL & Data Link Connectors Wiring Diagram” in EC section.)

CONSULT-II DLC cable and CONSULT-II CONVERTER
CONSULT-II cannot access
individual system. (Other sys-
tems can be accessed.)

CONSULT-II program card (Check the appropriate CONSULT-II program card for the system.
Refer to “Checking Equipment”.)

Power supply and ground circuit for the control unit of the system (For detailed circuit, refer to wir-
ing diagram for each system.)

Open or short circuit between the system and CONSULT-II DLC (For detailed circuit, refer to wiring
diagram for each system.)

Open or short circuit CAN communication line. Refer to LAN-50, "CAN System Specification Chart"
.

GW-1
GLASSES, WINDOW SYSTEM & MIRRORS
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GLASSES, WINDOW SYSTEM & MIRRORS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Procedures without Cowl Top Cover ..... 3
Handling for Adhesive and Primer ........................... 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
WINDSHIELD GLASS ...............................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION ................................................... 12
POWER WINDOW SYSTEM .................................... 14
Component Parts and Harness Connector Location ... 14
System Description ................................................ 14
MANUAL OPERATION ....................................... 15
AUTO OPERATION ............................................ 17
POWER WINDOW SERIAL LINK ....................... 17
POWER WINDOW LOCK ................................... 17
RETAINED POWER OPERATION ...................... 17
ANTI-PINCH SYSTEM ........................................ 18INITIALIZATION .................................................. 18
FAIL-SAFE CONTROL ........................................ 19
POWER WINDOW CONTROL BY THE KEY
CYLINDER SWITCH ........................................... 19
CAN Communication System Description .............. 19
CAN Communication Unit ....................................... 19
Schematic ............................................................... 20
Wiring Diagram — WINDOW — ............................. 21
Terminal and Reference Value for BCM ................. 27
Terminal and Reference Value for Power Window
Main Switch ............................................................ 28
Terminal and Reference Value for (Front and Rear)
Power Window Sub-Switch .................................... 29
CONSULT-II Function (BCM) ................................. 30
CONSULT-II START PROCEDURE .................... 30
WORK SUPPORT ............................................... 30
DATE MONITOR ................................................. 30
Work Flow ............................................................... 30
Trouble Diagnosis Symptom Chart ......................... 30
Check BCM Power Supply and Ground Circuit ...... 32
Check power Window Main Switch Power Supply
Circuit ..................................................................... 33
Check power Window Sub-Switch (Front Passen-
ger Side) Power Supply and Ground Circuit ........... 34
Check power Window Sub-Switch (Rear LH or RH)
Power Supply and Ground Circuit .......................... 35
Check power Window Motor (Front Driver Side) Cir-
cuit .......................................................................... 36
Check power Window Motor (Front Passenger
Side) Circuit ............................................................ 37
Check power Window Motor (Rear LH or RH) Circuit ... 38
Check encoder Circuit (Driver Side) ....................... 40
Check encoder Circuit (Passenger Side) ............... 43
Check encoder Circuit (Rear LH or RH) ................. 46
Check door Switch .................................................. 50
Check front Door Key Cylinder Switch ................... 52
Check power Window Serial Link (Passenger Side) ... 54
Check power Window Serial Link (Rear LH or RH) ... 56
Check power Window Lock Switch ......................... 56

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Removal and Installation ........................................ 57
REMOVAL ........................................................... 57
INSTALLATION .................................................... 58
REAR WINDOW GLASS AND MOLDING ................ 59
Removal and Installation ........................................ 59
REMOVAL ........................................................... 59
INSTALLATION .................................................... 60
FRONT DOOR GLASS AND REGULATOR ............. 61
Removal and Installation ........................................ 61
DOOR GLASS ..................................................... 61
REGULATOR ASSEMBLY .................................. 62
Disassembly and Assembly .................................... 63
REGULATOR ASSEMBLY .................................. 63
Inspection after Installation ..................................... 63
SYSTEM INITIALIZATION ................................... 63
INSPECT THE FUNCTION OF THE ANTI-
PINCH SYSTEM. ................................................. 63
FITTING INSPECTION ........................................ 64
REAR DOOR GLASS AND REGULATOR ............... 65
Removal and Installation ........................................ 65
DOOR GLASS ..................................................... 65
REGULATOR ASSEMBLY .................................. 66
Disassembly and Assembly .................................... 68
REGULATOR ASSEMBLY .................................. 68
Inspection after Installation ..................................... 68
SYSTEM INITIALIZATION ................................... 68
INSPECT THE FUNCTION OF THE ANTI-
PINCH SYSTEM .................................................. 68
FITTING INSPECTION ........................................ 68
INSIDE MIRROR ....................................................... 69
Wiring Diagram –I/MIRR– ....................................... 69
Removal and Installation ........................................ 70
REMOVAL ........................................................... 70
INSTALLATION .................................................... 70
REAR WINDOW DEFOGGER .................................. 71
Component Parts and Harness Connector Location ... 71
System Description ................................................. 71
CAN Communication System Description .............. 73
CAN Communication Unit ....................................... 73
Schematic ............................................................... 74
Wiring Diagram — DEF — ..................................... 75
Terminal and Reference Value for BCM ................. 80
Terminal and Reference Value for IPDM E/R ......... 80
CONSULT-II Function (BCM) .................................. 81
CONSULT-II START PROCEDURE .................... 81
DATA MONITOR .................................................. 81
ACTIVE TEST ..................................................... 81
CONSULT-II Function (IPDM E/R) .......................... 81
CONSULT-II START PROCEDURE .................... 81
DATA MONITOR .................................................. 81ACTIVE TEST ...................................................... 81
Work Flow ............................................................... 82
Trouble Diagnoses Symptom Chart ........................ 82
Check BCM Power Supply and Ground Circuit ...... 83
Check Rear Window Defogger Switch Circuit ......... 84
Check Rear Window Defogger Power Supply Cir-
cuit .......................................................................... 84
Check Rear Window Defogger Circuit .................... 86
Check Door Mirror Defogger Power Supply Circuit ... 87
Check Driver Side Door Mirror Defogger Circuit ..... 89
Check Passenger Side Door Mirror Defogger Circuit
... 90
Check Filament ....................................................... 92
Filament Repair ....................................................... 92
REPAIR EQUIPMENT ......................................... 92
REPAIRING PROCEDURE ................................. 93
REVERSE INTERLOCK DOOR MIRROR SYSTEM ... 94
Component Parts and Harness Connector Location ... 94
System Description ................................................. 94
OPERATION CONDITIONS ................................ 94
MIRROR UNGLE MEMORY FUNCTION ............ 94
REVERSE INTERLOCK DOOR MIRROR SYS-
TEM OPERATION ............................................... 95
CAN Communication System Description .............. 95
CAN Communication Unit ....................................... 95
Schematic ............................................................... 96
Wiring Diagram — MIRROR — .............................. 97
Terminals and Reference Values for Automatic
Drive Positioner Control Unit .................................103
Terminals and Reference Values for Driver Seat
Control Unit ...........................................................104
CONSULT-II Function (AUTO DRIVE POS.) ........105
CONSULT-II START PROCEDURE ...................105
DATA MONITOR ................................................105
ACTIVE TEST ....................................................105
Work Flow .............................................................106
Symptom Chart .....................................................106
Check Changeover Switch Circuit ........................107
Check Mirror Switch Circuit ...................................109
Check Mirror Motor Circuit .................................... 111
Check Mirror Sensor Circuit ..................................114
Check A/T Control Device R Position Circuit ........117
DOOR MIRROR .......................................................118
Automatic Drive Positioner Interlocking Door Mirror .118
Removal and Installation .......................................118
REMOVAL ..........................................................118
INSTALLATION ..................................................118
Disassembly and Assembly ..................................119
DISASSEMBLY ..................................................119
ASSEMBLY ........................................................120

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NIS00216
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 Procedures without Cowl Top CoverNIS00217
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Handling for Adhesive and PrimerNIS00218

Do not use an adhesive which is past its usable date. Shelf life of this product is limited to six months after
the date of manufacture. Carefully adhere to the expiration or manufacture date printed on the box.

Keep primers and adhesive in a cool, dry place. Ideally, they should be stored in a refrigerator.

Open the seal of the primer and adhesive just before application. Discard the remainder.

Before application, be sure to shake the primer container to stir the contents. If any floating material is
found, do not use it.

If any primer or adhesive contacts the skin, wipe it off with gasoline or equivalent and wash the skin with
soap.

When using primer and adhesive, always observe the precautions in the instruction manual.
PIIB3706J

SQUEAK AND RATTLE TROUBLE DIAGNOSES
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INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30×50 mm (1.18×1.97 in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15×25 mm (0.59×0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit. Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingNIS0021C
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.

POWER WINDOW SYSTEM
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FAIL-SAFE CONTROL
The encoder signal detects the up / down speed / detection of door glass. If the malfunction is detected to the
encoder signal or the difference between the glass fully closed position (memorized in power window main
switch or power window sub-switch) and the actual glass position is detected, it shifts into the fail-safe control
It is shifts into the fail-safe control, the initialization is not performed and the following function is not activated

Auto up operation

Anti-pinch function
It is shifts into the fail-safe control, performed the initialization to resume normal operation condition.
POWER WINDOW CONTROL BY THE KEY CYLINDER SWITCH
When ignition key switch is OFF, front power window can be opened or closed by turning the key cylinder
switch UNLOCK / LOCK position more than 1.5 second over condition.

Power window can be opened as the door key cylinder is kept fully turning to the UNLOCK position.

Power window can be closed as the door key cylinder is kept fully turning to the LOCK position.
The power window DOWN stops when the following operations are carried out.

While performing open / close the window, power window is stopped at the position as the door key cylin-
der is placed on NEUTRAL.

When the ignition switch is turned ON while the power window DOWN is operated.
CAN Communication System DescriptionNIS0021H
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNIS0021I
Refer to LAN-50, "CAN System Specification Chart"
DTC Condition
Pulse sensor detects malfunctionDuring the glass opening/closing operation, a pulse signal is continuously
detected for the specified terms or more
Both pulse sensors detect malfunctionDuring the glass opening/closing operation, both pulse signals are not
detected for the specified values or more
Pulse direction malfunctionThe following condition is detected for the specified values or more. The
pulse signal (detected during glass open/close operation) detects the
opposite direction to the driving direction of power window motor.
Glass recognized position malfunction 1During the glass opening/closing operation, the difference between the
glass fully closed position (memorized in power window main switch or
power window sub-switch) and the actual glass position is detected for
the specified values or more.
Glass recognized position malfunction 2During the glass opening/closing operation, a pulse count is detected that
is above the glass full stroke
Glass fully closed position not updated malfunctionContinuously perform the glass open/close operation (with the glass not
fully closed) at the specified value (approx. 10 time) or more

POWER WINDOW SYSTEM
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Wiring Diagram — WINDOW —NIS0021K
T I W T 2 111 E