ground INFINITI FX35 2004 Service Manual

GI-32
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Revision: 2004 November 2004 FX35/FX45
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

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: 2004 November 2004 FX35/FX45
If repairs are needed always use wire that is of the same or larger gauge.
MEASURING VOLTAGE DROP — ACCUMULATED METHOD

Connect the DMM across the connector or part of the circuit you want to check. The positive lead of the
DMM should be closer to power and the negative lead closer to ground.

Operate the circuit.

The DMM will indicate how many volts are being used to “push” current through that part of the circuit.
Note in the illustration that there is an excessive 4.1 volt drop between the battery and the bulb.
MEASURING VOLTAGE DROP — STEP-BY-STEP
The step-by-step method is most useful for isolating excessive drops in low voltage systems (such as those in
“Computer Controlled Systems”).
Circuits in the “Computer Controlled System” operate on very low amperage.
The (Computer Controlled) system operations can be adversely affected by any variation in resistance in the
system. Such resistance variation may be caused by poor connection, improper installation, improper wire
gauge or corrosion.
The step by step voltage drop test can identify a component or wire with too much resistance.
SGI974
SAIA0258E

GI-34
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Revision: 2004 November 2004 FX35/FX45
Control Unit Circuit Test
System Description:When the switch is ON, the control unit lights up the lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 1 does not detect battery voltage. Control unit
does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not supply power to light up the
lamp.
INPUT-OUTPUT VOLTAGE CHART
The voltage value is based on the body ground.
*:If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit does
not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the lamp.
MGI034A
Pin
No.Item ConditionVoltage
value [V]In case of high resistance such as single strand [V] *
1 SwitchSwitch ON Battery voltage Lower than battery voltage Approx. 8 (Example)
Switch OFF Approx. 0 Approx. 0
2LampSwitch ON Battery voltage Approx. 0 (Inoperative lamp)
Switch OFF Approx. 0 Approx. 0
MGI035A
Pin
No.Item ConditionVo l ta g e
value [V]In case of high resistance such as single strand [V] *
1LampSwitch ON Approx. 0 Battery voltage (Inoperative lamp)
Switch OFF Battery voltage Battery voltage
2 SwitchSwitch ON Approx. 0 Higher than 0 Approx. 4 (Example)
Switch OFF Approx. 5 Approx. 5

CONSULT-II CHECKING SYSTEM
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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.
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-4, "Precautions When Using CON-
SULT-II" .

LIFTING POINT
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Place wheel chocks at both front and back of the wheels on the ground.
CAUTION:
There is canister just behind Garage jack point rear. Jack up be carefully.
2-Pole Lift AAS000EF
WARNING:
When lifting the vehicle, open the lift arms as wide as possible and ensure that the front and rear of
the vehicle are well balanced.
When setting the lift arm, do not allow the arm to contact the brake tubes, brake cable, fuel lines and
sill spoiler.
PAIA0095E
PAIA0096E

TOW TRUCK TOWING
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TOW TRUCK TOWINGPFP:00000
Tow Truck TowingAAS000EH
CAUTION:

All applicable state or Provincial (in Canada) laws and local laws regarding the towing operation
must be obeyed.

It is necessary to use proper towing equipment to avoid possible damage to the vehicle during
towing operation. Towing is in accordance with Towing Procedure Manual at dealer.

Always attach safety chains before towing.

When towing, make sure that the transmission, steering system and power train are in good order.
If any unit is damaged, dollies must be used.

Never tow an automatic transmission model from the rear (that is backward) with four wheels on
the ground. This may cause serious and expensive damage to the transmission.
2WD MODELS
INFINITI recommends that your vehicle be towed with the driving (rear) wheels off the ground or that a dolly be
used as illustrated.
CAUTION:

Never tow automatic transmission models with the rear wheels on the ground or four wheels on
the ground (forward or backward) as this may cause serious and expensive damage to the trans-
mission.
If it is necessary to tow the vehicle with the front wheels raised, always use towing dollies under
the rear wheels.

When towing rear wheel drive models with the front wheels on the ground or on towing dollies:
–Turn the ignition key to the OFF position, and secure the steering wheel in a straight ahead posi-
tion with a rope or similar device.Never secure the steering wheel by turning the ignition key to the
LOCK position. This may damage the steering lock mechanism.
–Move the selector lever to the N (Neutral) position.

When the battery of vehicle equipped with the Intelligent Key system is discharged, your vehicle
should be towed with the front wheels on towing dollies or place the vehicle on a flat bed truck.
PAIA0097E

GI-46
TOW TRUCK TOWING
Revision: 2004 November 2004 FX35/FX45
AW D M OD E LS
INFINITI recommends that a dolly be used as illustrated when towing AWD models.
CAUTION:
Never tow AWD models with any of the wheels on the ground as this may cause serious and expen-
sive damage to the power train.
Vehicle Recovery (Freeing a Stuck Vehicle) AAS000EI
Securely install the recovery hook stored with jacking tools.
Make sure that the hook is properly secured in the stored place after
use.
WARNING:

Stand clear of a stuck vehicle.

Do not spin your tires at high speed. This could be cause
them to explode and result in serious injury. Parts of your
vehicle could also overheat and be damaged.
CAUTION:

Use the recovery hook only, not other parts of the vehicle.
Otherwise, the vehicle body will be damaged.

Use the recovery hook only to free a vehicle stuck in sand,
snow, mud, etc. Never tow the vehicle for a long distance
using only the recovery hook.

The recovery hook is under tremendous force when used to
free a stuck vehicle. Always pull the cable straight out from
the front of the vehicle. Never pull on the hook at an angle.
AUTOMATIC TRANSMISSION
To tow a vehicle equipped with an automatic transmission, an appropriate vehicle dolly MUST be placed
under the towed vehicle's drive wheels. Always follow the dolly manufacture's recommendations when using
their product.
PAIA0098E
PAIA0099E

GW-2Revision: 2004 November 2004 FX35/FX45DATE MONITOR ................................................. 41
Trouble Diagnosis Symptom Chart / With Front
Power Window Anti-pinch System .......................... 42
Trouble Diagnosis Symptom Chart / With Front and
Rear Power Window Anti-pinch System ................. 43
BCM Power Supply and Ground Circuit Check ...... 44
Power Window Main Switch Power Supply Circuit
Check ..................................................................... 45
Front Power Window Switch (Passenger Side)
Power Supply and Ground Circuit Check ............... 46
Rear Power Window Switch (LH or RH) Power Sup-
ply and Ground Circuit Check / With Front and Rear
Power Window Anti-pinch System .......................... 47
Front Power Window Motor (Driver Side) Circuit
Check ..................................................................... 48
Front Power Window Motor (Passenger Side) Cir-
cuit Check ............................................................... 49
Rear Power Window Motor (LH) Circuit Check / With
Front Anti-pinch Power Window System ................ 50
Rear Power Window Motor (RH) Circuit Check / With
Front Anti-pinch Power Window System ................ 52
Rear Power Window Motor (LH or RH) Circuit Check
/ With Front and Rear Power Window Anti-pinch
System .................................................................... 55
Limit Switch Circuit Check (Driver Side) ................. 56
Limit Switch Circuit Check (Passenger Side) ......... 57
Limit Switch Circuit Check (Rear LH or RH) / With
Front and Rear Anti-pinch System ......................... 59
Encoder Circuit Check (Driver Side) ....................... 61
Encoder Circuit Check (Passenger Side) ............... 63
Encoder Circuit Check (Rear LH or RH) / With Front
and Rear Power Window Anti-pinch System .......... 65
Door Switch Check ................................................. 67
Front Door Key Cylinder Switch Check .................. 69
Power Window Serial Link Check (Passenger Side) ... 71
Power Window Serial Link Check (Rear LH or RH)
/ With Front and Rear Power Window Anti-pinch
System .................................................................... 73
Power Window Lock Switch Check ........................ 73
SIDE WINDOW GLASS ............................................ 74
Removal and Installation ........................................ 74
REMOVAL ........................................................... 74
INSTALLATION .................................................... 75
FRONT DOOR GLASS AND REGULATOR ............. 76
Removal and Installation ........................................ 76
DOOR GLASS ..................................................... 76
REGULATOR ASSEMBLY .................................. 77
Disassembly and assembly .................................... 78
REGULATOR ASSEMBLY .................................. 78
Inspection after Installation ..................................... 78
SETTING OF LIMIT SWITCH .............................. 78
FITTING INSPECTION ........................................ 78
REAR DOOR GLASS AND REGULATOR ............... 80
Removal and Installation ........................................ 80
DOOR GLASS ..................................................... 80REGULATOR ASSEMBLY ................................... 81
Disassembly and assembly .................................... 82
REGULATOR ASSEMBLY ................................... 82
Inspection after Installation ..................................... 82
SETTING OF LIMIT SWITCH (WITH ANTI-
PINCH SYSTEM ONLY) ...................................... 82
FITTING INSPECTION ........................................ 83
INSIDE MIRROR ....................................................... 84
Wiring Diagram —I/MIRR— ................................... 84
Removal and Installation ......................................... 85
REMOVAL ............................................................ 85
INSTALLATION .................................................... 85
COMPASS ........................................................... 85
REAR WINDOW DEFOGGER .................................. 86
Component Parts and Harness Connector Location ... 86
System Description ................................................. 86
CAN Communication System Description .............. 88
CAN Communication Unit ....................................... 88
Schematic ............................................................... 89
Wiring Diagram —DEF— ........................................ 90
Terminal and Reference Value for BCM .................. 94
Terminal and Reference Value for IPDM E/R .......... 94
Work Flow ............................................................... 94
CONSULT-II Inspection Procedure ......................... 95
DATA MONITOR .................................................. 96
ACTIVE TEST ...................................................... 96
Trouble Diagnoses Symptom Chart ........................ 97
BCM Power Supply and Ground Circuit Check ...... 97
Rear Window Defogger Switch Circuit Check ......... 98
Rear Window Defogger Power Supply Circuit
Check ....................................................................100
Rear Window Defogger Circuit Check ..................102
Door Mirror Defogger Power Supply Circuit Check .103
Driver Side Door Mirror Defogger Circuit Check ...104
Passenger Side Door Mirror Defogger Circuit Check
.105
Rear Window Defogger Signal Check ..................106
Filament Check .....................................................107
Filament Repair .....................................................107
REPAIR EQUIPMENT .......................................107
REPAIRING PROCEDURE ...............................108
DOOR MIRROR .......................................................109
Door Mirror (Only Manual Operation) ...................109
WRING DIAGRAM —MIRROR— FOR MAN-
UAL OPERATION DOOR MIRROR ...................109
Automatic Drive Positioner Interlocking Door Mirror .110
WRING DIAGRAM –MIRROR– FOR AUTO-
MATIC DRIVE POSITIONER INTERLOCKING
DOOR MIRROR ................................................. 111
Removal and Installation .......................................113
REMOVAL ..........................................................113
INSTALLATION ..................................................113
Disassembly and Assembly ..................................113
DISASSEMBLY ..................................................113
ASSEMBLY ........................................................114

REAR WINDOW GLASS AND MOLDING
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REAR WINDOW GLASS AND MOLDINGPFP:79712
Removal and InstallationAIS003A4
REMOVAL
1. Remove the back door finisher. Refer to EI-46, "BACK DOOR TRIM" .
2. Remove the rear wiper arm. Refer to WW-48, "
Removal and Installation of Rear Wiper Arm, Adjustment of
Wiper Arms Stop Location" .
3. Remove the connectors and grounds for the rear window defogger.

After removing molding, remove glass using cutting knife or power cutting tool and an inflatable pump
bag.

If a windshield glass is to be reused, mark the body and the glass with mating marks.
WARNING:
When cutting the glass from the vehicle, always wear safety glasses and heavy gloves to help prevent
glass splinters from entering your eyes or cutting your hands.
1. Dam rubber 2. Rear window glass 3. Adhesive
4. Back door outer panel 5. Back door inner panel 6. Back door window molding
7. Clip 8. Back door finisher
PIIA9191E

GW-16
POWER WINDOW SYSTEM
Revision: 2004 November 2004 FX35/FX45
System DescriptionAIS004PX
WITH FRONT POWER WINDOW ANTI-PINCH SYSTEM
Power is supplied at all time

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55, and

through BCM terminal 54

to power window main switch terminal 19

to front power window switch (passenger side) terminal 10.

through 15A fuse [No.22, located in the fuse block (J/B)]

to BCM terminal 42.
With ignition switch in ON or START position,
Power is supplied

through 15A fuse [No. 1 , located in the fuse block (J/B)]

to BCM terminal 38, and

trough BCM terminal 53

to power window main switch terminal 10

to rear power window switch (LH and RH) terminal 1.
Ground supplied

to BCM terminal 49 and 52

through body grounds M35, M45 and M85.

to power window main switch terminal 17

through body grounds M35, M45 and M85.

to front power window switch (passenger side) terminal 11

through body grounds M35, M45 and M85.
WITH FRONT AND REAR WINDOW ANTI-PINCH SYSTEM
Power is supplied at all time

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55, and

through BCM terminal 54

to power window main switch terminal 19

to front power window switch (passenger side) terminal 10

to rear power window switch (LH and RH) terminal 10.

through 15A fuse [No.22, located in the fuse block (J/B)]

to BCM terminal 42.
With ignition switch in ON or START position,
Power is supplied

through 15A fuse [No.1,located in the fuse block (J/B)]

to BCM terminal 38, and

through BCM terminal 53

to power window main switch terminal 10
Ground supplied

to BCM terminal 49 and 52

through body grounds M35, M45 and M85.

to power window main switch terminal 17

through body grounds M35, M45 and M85.

to front power window switch (passenger side) terminal 11

through body grounds M35, M45 and M85.

to rear power window switch (LH and RH) terminal 11

through body grounds B15 and B45.