key battery INFINITI FX35 2004 Manual PDF

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: 2004 November 2004 FX35/FX45
VOLTAGE CHECK METHOD
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.

Connect one probe of the DMM to a known good ground.

Begin probing at one end of the circuit and work your way to the other end.

With SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).

Close SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).

Close the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “Shorts” in the Circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
RESISTANCE CHECK METHOD

Disconnect the battery negative cable and remove the blown fuse.

Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the
fuse.

Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.

With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.

Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good
ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.

Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and
a known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
VOLTAGE CHECK METHOD

Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.

Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse
terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).

With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
SGI847-A

TOW TRUCK TOWING
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Revision: 2004 November 2004 FX35/FX45
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

POWER WINDOW SYSTEM
GW-29
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Revision: 2004 November 2004 FX35/FX45
Terminal and Reference Value for Power Window Main Switch / With Front
Power Window Anti-pinch System
AIS004Q3
Terminal Wire color Item ConditionVoltage [V]
(Approx.)
1YRear LH power window
UP signalWhen rear LH switch in
power window main switch is
UP at operated.Battery voltage
2 SB Limit switch and encoder ground — 0
3RRear LH power window
DOWN signalWhen rear LH switch in
power window main switch is
DOWN at operated.Battery voltage
4PDoor key cylinder switch
LOCK signalKey position
(Neutral → Locked)5 → 0
5GRear RH power window
DOWN signalWhen rear RH switch in
power window main switch is
DOWN at operated. Battery voltage
6ORDoor key cylinder switch
UNLOCK signalKey position
(Neutral → Unlocked)5 → 0
7LGRear RH power window
UP signalWhen rear RH switch in
power window main switch is
UP at operated. Battery voltage
8LFront driver side
power window motor UP signalWhen front LH switch in
power window main switch is
UP at operated Battery voltage
9 GY Limit switch signalDriver side door window is
between fully-open and just
before fully-closed position (ON)0
Driver side door window is
between just before fully-closed
position and fully-closed position
(OFF)5
10 BR Rap signalIGN SW ON Battery voltage
Within 45 second after ignition
switch is turned to OFFBattery voltage
When driver side or passenger
side door open in power window
timer is operates0
11 BFront driver side
power window motor DOWN signalWhen front LH switch in
power window main switch is
DOWN at operated Battery voltage
13 PU Encoder pulse signalWhen power window motor oper-
ates.
14 Y Power window serial linkIGN SW ON or power window
timer operating.
15 W Encoder power supplyWhen ignition switch ON or
power window timer operates10
OCC3383D
PIIA2344J

GW-38
POWER WINDOW SYSTEM
Revision: 2004 November 2004 FX35/FX45
Terminal and Reference Value for Power Window Main Switch / With Front and
Rear Power Window Anti-pinch System
AIS004Q8
Terminal Wire color Item ConditionVoltage [V]
(Approx.)
2 SB Limit switch and encoder ground — 0
4PDoor key cylinder switch
LOCK signalKey position
(Neutral → Locked)5 → 0
6ORDoor key cylinder switch
UNLOCK signalKey position
(Neutral → Unlocked)5 → 0
8LFront driver side power window
motor UP signalWhen front LH switch in
power window main switch is
UP at operated. Battery voltage
9 GY Limit switch signalDriver side door window is between
fully-open and just before fully-
closed position (ON).0
Driver side door window is between
just before fully-closed position and
fully-closed position (OFF).5
10 BR Rap signalIGN SW ON Battery voltage
Within 45 second after ignition
switch is turned to OFFBattery voltage
When driver side or passenger side
door is open in power window timer
is operates0
11 BFront driver side power window
motor DOWN signalWhen front LH switch in
power window main switch is
DOWN at operated. Battery voltage
13 PU Encoder pulse signalWhen power window motor oper-
ates.
14 Y Power window serial linkIGN SW ON or power window timer
operating.
15 W Encoder power supplyWhen ignition switch ON or power
window timer operates.10
17 B Ground — 0
19 W Battery power supply — Battery voltage
OCC3383D
PIIA2344J

GW-44
POWER WINDOW SYSTEM
Revision: 2004 November 2004 FX35/FX45
BCM Power Supply and Ground Circuit CheckAIS004QE
1. CHECK FUSE

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

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

Check 50A fusible link (letter M located in the fuse and fusible link box).
NOTE:
Refer to GW-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3, M4 terminal 38, 42,
55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
Power window retained power operation does not operate
properly1. Check the retained power operation mode set-
ting.GW-41
2. Door switch checkGW-67
3. Replace BCM.BCS-15
Does not operate by key cylinder switch1. Door key cylinder switch checkGW-692. Replace power window main switch —
Power window lock switch does not function 1. Power window lock switch checkGW-73
Auto operation does not operate but manual operate normally
(driver side)1. Encoder circuit check (driver side)GW-61
2. Replace power window main switch —
Auto operation does not operate but manual operate normally
(passenger side)1. Encoder circuit check (passenger side)GW-63
2. Replace front power window switch (passen-
ger side)—
Auto operation does not operate but manual operate normally
(rear LH or RH)1. Encoder circuit check (rear LH or RH)GW-65
2. Replace rear power window switch (LH or RH) — Symptom Repair order Refer to page
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

CAN COMMUNICATION
LAN-7
[CAN]
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Revision: 2004 November 2004 FX35/FX45

Ty pe 2
Input/output signal chart
T: Transmit R: Receive
SKIA6172E
Signals ECM TCMDis-
play
unitBCMSte er-
ing
angle
sensorUnified
meter
and
A/C
amp.ABS
actua-
tor and
electric
unit
(con-
trol
unit)Driver
seat
control
unitIPDM
E/R
Engine speed signal T R R R R
Engine status signal T R
Engine coolant temperature signal T R
A/T self-diagnosis signal R T
Accelerator pedal position signal T R R
Closed throttle position signal T R
Wide open throttle position signal T R
Battery voltage signal T R
Key switch signal T R
Ignition switch signal T R R
P range signal T R R
Stop lamp switch signal R T
Fuel consumption monitor signalTR
RT
Turbine revolution signal R T
Output shaft revolution signal R T
A/C switch signal R T
A/C compressor request signal TR
A/C compressor feedback signal T R
Blower fan motor switch signal R T
A/C switch/indicator signalTR
RT
Cooling fan speed request signal TR

LAN-10
[CAN]
CAN COMMUNICATION
Revision: 2004 November 2004 FX35/FX45
A/T self-diagnosis signal R T
Accelerator pedal posi-
tion signal TR R R
Closed throttle position
signalTR R
Wide open throttle posi-
tion signalTR
Battery voltage signal T R
Key switch signal T R
Ignition switch signal T R R
P range signal T R R R
Stop lamp switch signal R T
ABS operation signal R T
TCS operation signal R T
VDC operation signal R T
Fuel consumption moni-
tor signalTR
RT
Turbine revolution signal R T R
Output shaft revolution
signalRT R
A/C switch signal R T
A/C compressor request
signalTR
A/C compressor feed-
back signalTR
Blower fan motor switch
signalRT
A/C switch/indicator sig-
nalTR
RT
Cooling fan speed
request signalTR
Position light request sig-
nalTR R
Low beam request signal T R
Low beam status signal RT
High beam request sig-
nalTR R
High beam status signal RT
Front fog light request
signalTR
Day time running light
request signalTR Signals ECM TCMDis-
play
con-
trol
unitLow
tire
pres-
sure
warn-
ing
con-
trol
unitICC
unitIntelli-
gent
Key
unitBCMSte er-
ing
angle
sen-
sorUni-
fied
meter
and
A/C
amp.ICC
sen-
sorABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)Driver
seat
con-
trol
unitIPDM
E/R

LAN-14
[CAN]
CAN COMMUNICATION
Revision: 2004 November 2004 FX35/FX45
Input/output signal chart
T: Transmit R: Receive
Signals ECM TCMDis-
play
unitAWD
con-
trol
unitBCMSt e e r-
ing
angle
sensorUni-
fied
meter
and
A/C
amp.ABS
actua-
tor
and
elec-
tric
unit
(con-
trol
unit)Driver
seat
con-
trol
unitIPDM
E/R
A/T self-diagnosis signal R T
Stop lamp switch signal R R T
Battery voltage signal T R
Key switch signal T R
Ignition switch signal T R R
P range signal T R R
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R R R R
Engine status signal T R
Engine coolant temperature signal T R
Accelerator pedal position signal T R R R
Fuel consumption monitor signalTR
RT
Turbine revolution signal R T
Output shaft revolution signal R T
A/C switch signal R T
A/C compressor request signal TR
A/C compressor feedback signal T R
Blower fan motor switch signal R T
A/C switch/indicator signalTR
RT
Cooling fan speed request signal TR
Position light request signal R T R R
Low beam request signal T R
Low beam status signal RT
High beam request signal T R R
High beam status signal RT
Front fog light request signal T R
Day time running light request signal T R
Turn LED burnout status signal R T
Vehicle speed signalRRT
RRR R T R
Sleep wake up signal T R R
Door switch signal R T R R R
Turn indicator signal T R
Key fob ID signal T R

LAN-16
[CAN]
CAN COMMUNICATION
Revision: 2004 November 2004 FX35/FX45
*: VK45DE engine model only
TYPE 6
System diagram

Ty p e 6
Input/output signal chart
T: Transmit R: Receive Next gear position signal* R T
Shift change signal* R T
Shift pattern signal* R TSignals ECM TCMDis-
play
unitAWD
con-
trol
unitBCMSt e e r-
ing
angle
sensorUni-
fied
meter
and
A/C
amp.ABS
actua-
tor
and
elec-
tric
unit
(con-
trol
unit)Driver
seat
con-
trol
unitIPDM
E/R
SKIA6176E
Signals ECM TCMDis-
play
con-
trol
unitLow
tire
pres-
sure
warn-
ing
con-
trol
unitAWD
con-
trol
unitICC
unitIntel-
ligent
Key
unitBCMStee r-
ing
angle
sen-
sorUni-
fied
meter
and
A/C
amp.ICC
sen-
sorABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)Driver
seat
con-
trol
unitIPDM
E/R
A/T self-diagnosis
signalRT
ABS operation signal R T
TCS operation signal R T
VDC operation signal R R T
Stop lamp switch sig-
nalRR T
Battery voltage sig-
nalTR
Key switch signal T R

CAN SYSTEM (TYPE 3)
LAN-121
[CAN]
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Revision: 2004 November 2004 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect low tire pressure warning control unit connector.
2. Check resistance between low tire pressure warning control unit
harness connector M74 terminals 9 (L) and 21 (R).
OK or NG
OK >> Replace low tire pressure warning control unit.
NG >> Repair harness between low tire pressure warning con-
trol unit and harness connector M82.
ICC Unit Circuit CheckAKS00C0O
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of ICC unit for damage, bend and loose connection (unit side and harness
side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ICC unit connector.
2. Check resistance between ICC unit harness connector M88 ter-
minals 14 (L) and 5 (R).
OK or NG
OK >> Replace ICC unit.
NG >> Repair harness between ICC unit and harness connec-
tor M82.
Intelligent Key Unit Circuit CheckAKS00C0P
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check terminals and connector of Intelligent Key unit for damage, bend and loose connection (unit side
and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.9 (L) - 21 (R) : Approx. 54 - 66Ω
SKIA6885E
14 (L) - 5 (R) : Approx. 54 - 66Ω
SKIA6886E