2007 INFINITI FX35 transmission

GW-68
REAR WINDOW DEFOGGER
Revision: 2006 July 2007 FX35/FX45

to rear window defogger relay terminal 1,
Ground is supplied

to BCM terminal 49 and 52

through body grounds M35, M45 and M85,

to A/C and AV switch terminal 5

through body grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through body grounds E21, E50 and E51.
When rear window defogger switch in A/C and AV switch is turned to ON,
Ground is supplied

to BCM terminal 9

through A/C and AV switch terminal 16

through A/C and AV switch terminal 5 and

through body grounds M35, M45 and M85.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R, display control unit via DATA LINE (CAN H,
CAN L).
When display control unit receives rear window defogger switch signals, and display on the screen.
When IPDM E/R receives rear window defogger switch signals,
Ground is supplied

to rear window defogger relay terminal 2

through IPDM E/R terminal 52

through IPDM E/R terminals 38 and 60 and

through body grounds E21, E50 and E51.
And then rear window defogger relay is energized.
When rear window defogger relay is turned ON, signals are transmitted.

through rear window defogger relay terminals 5 and 7

to rear window defogger terminal 1
Rear window defogger terminal 2 is grounded through grounds B15 and B45.
With power and ground supplied, rear window defogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON,
Power is supplied

through rear window defogger relay terminal 7

through fuse block (J/B) terminal 2C

through 15A fuse [No. 8, located in the fuse block (J/B)] and

through fuse block (J/B) terminal 5B

to door mirror defogger (driver side and passenger side) terminal 4.
Door mirror defogger (driver side and passenger side) terminal 3 is grounded through body grounds M35, M45
and M85.
With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror defogger filaments heat and defog the mirror.
CAN Communication System DescriptionNIS001S2
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 UnitNIS001S3
Refer to LAN-49, "CAN System Specification Chart" .

IDX-2
ALPHABETICAL INDEX
A
A/C air flow ...................................................... ATC-37
A/C component layout ..................................... ATC-26
A/C compressor clutch removal and installation ...........
ATC-142
A/C compressor mounting ........... ATC-140, ATC-142,
ATC-146
, ATC-147, ATC-148, ATC-149, ATC-150,
ATC-152
, ATC-153, ATC-154, ATC-155
A/C compressor precaution ............................. ATC-13
A/C compressor special service tool ................ ATC-17
A/C control operation (auto A/C) ...................... ATC-34
A/C diagnostic work flow (auto A/C) .............. ATC-101
A/C evaporator ............................................... ATC-154
A/C HFC134a (R134a) system precaution ........ ATC-6
A/C HFC134a (R134a) system service procedure .......
ATC-137
A/C HFC134a (R134a) system service tools ... ATC-18
A/C HFC134a system service equipment precaution ...
ATC-13
A/C lubricant (R134a) ...................................... ATC-27
A/C lubrication oil ........................................... ATC-160
A/C operational check ...................................... ATC-60
A/C self-diagnoses (auto A/C) ........ ATC-52, ATC-101
A/C service data specification ........................ ATC-160
A/C system description (auto A/C) ................... ATC-30
A/C trouble diagnoses (auto A/C) .................... ATC-40
A/C, A - Wiring diagram ................................... ATC-45
A/T fluid checking ...................... AT-13, AT-53, MA-29
A/T fluid cooler cleaning .................................... AT-15
A/T fluid replacement ............................. AT-12, MA-31
A/T fluid temperature sensor ........................... AT-134
A/T IND - Wiring diagram .................................... DI-53
A/T self-diagnoses ........................................... AT-102
A/T shift lock system ........................................ AT-232
A/T shift lock system - Wiring diagram ............ AT-233
A/T trouble diagnoses ........................................ AT-44
Accelerator pedal position (APP) sensor ........ EC-576,
EC-583
, EC-597, EC-1258, EC-1265, EC-1279
Accelerator pedal released position learning .... EC-83,
EC-745
AF1B1-Wiring diagram ...... EC-232, EC-241, EC-250,
EC-260
, EC-607, EC-904, EC-913, EC-922, EC-932,
EC-1289
AF1B2-Wiring diagram ...... EC-234, EC-243, EC-252,
EC-262
, EC-609, EC-906, EC-915, EC-924, EC-934,
EC-1291
AF1HB1-Wiring diagram .................... EC-166, EC-838
AF1HB2-Wiring diagram .................... EC-168, EC-840
Air bag .............................................................. SRS-3
Air bag precautions ........................................... SRS-3
Air cleaner and air duct(VK45DE) ................... EM-177
Air cleaner and air duct(VQ35DE) .................... EM-17
Air cleaner filter replacement ............................ MA-25
Air cleaner filter replacement(VQ35DE) ........... MA-18
Air cleaner filter(VQ35DE) ................................ EM-18
Air conditioner cut control .................... EC-34, EC-696
Air flow meter - See Mass air flow sensor ...... EC-187,
EC-196
, EC-859, EC-868
Air fuel ratio sensor 1 ......... EC-229, EC-239, EC-248,
EC-257
, EC-605, EC-901, EC-911, EC-920, EC-929,
EC-1287
Air fuel ratio sensor 1 heater ............. EC-164, EC-837
Air mix. door motor ......................... ATC-71, ATC-131
Ambient sensor ............................. ATC-103, ATC-116
Angular tightening application ............................. EM-6
Angular tightening application(VK45DE) ........ EM-165
APPS1 - Wiring diagram ................. EC-578, EC-1260
APPS2 - Wiring diagram ................. EC-585, EC-1267
APPS3 - Wiring diagram ................. EC-599, EC-1281
ASC/BS - Wiring diagram ............... EC-541, EC-1217
ASC/SW - Wiring diagram .............. EC-524, EC-1200
ASCBOF - Wiring diagram .............. EC-618, EC-1300
ASCD .................................................. EC-35, EC-697
ASCD (automatic speed control device) ........... ACS-3
ASCD brake switch .......................................... EC-539
ASCD indicator lamp ....................................... EC-624
ASCD steering switch ...................................... EC-522
ASCIND - Wiring diagram ............... EC-625, EC-1307
AT indicator lamp ................................................ DI-52
Auto air conditioner - Wiring diagram ............. ATC-45
Auto amp ...................................................... ATC-115
Auto anti-dazzling inside mirror ....................... GW-65
Automatic amplifier ........... ATC-50, ATC-62, ATC-115
Automatic transmission fluid replacement ........ MA-32
AV communication line ........................ AV-64, AV-108
AWD - Wiring diagram ....................................... TF-17
Axle ................................................................... MA-37
Axle housing (rear) ........................................... RAX-7
B
Back Door ........................................................ BL-158
Back door ......................................................... BL-158
Back door opener - See Back door .................. BL-162
Basic inspection .................................. EC-76, EC-738
Battery ................................................................. SC-5
Battery/Starting/Charging System Tester SC-8, SC-14,
SC-27
BCM (Body control module) .............................. BCS-3
Block heater(VK45DE) .................................... EM-248
Block heater(VQ35DE) ................................... EM-123
Blower motor ................................... ATC-77, ATC-122
Blower unit .................................................... ATC-120
Brake booster .................................................... BR-15
Brake fluid level ................................................ MA-35
Brake hydraulic line ........................................... BR-11
Brake inspection ............................................... MA-36
Brake lines and cables inspection .................... MA-35
Brake master cylinder ........................................ BR-13
Brake switch ................................... EC-552, EC-1233
BRK/SW - Wiring diagram .............. EC-553, EC-1234
Bulb specifications ........................................... LT-201
Bumper, front ...................................................... EI-14
Bumper, rear ....................................................... EI-17

SYSTEM DESCRIPTION LAN-5
[CAN FUNDAMENTAL]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
CAN COMMUNICATION CONTROL CIRCUIT
*: These are the only control units wired with both ends of CAN communication system.
SKIB8713E
Component System description
CAN controller It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver IC It converts digital signal into CAN communication signal, and CAN communication signal into digi-
tal signal.
Noise filter It eliminates noise of CAN communication signal.
Termination circuit
*
(Resistance of approx. 120 Ω) It produces potential difference.

TROUBLE DIAGNOSIS LAN-9
[CAN FUNDAMENTAL]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
Example: Data link connector branch line open circuit
NOTE:

When data link connector branch line is open, transmission and reception of CAN communication signals
is not affected. Therefore, no symptoms occur. However, be sure to repair malfunctioning circuit.

When data link connector branch line is open, the screen-display of the CONSULT-II “SELECT SYSTEM”
screen may be the same as when the CAN communication line has short-circuit. However, symptoms dif-
fer depending on the case. See below chart for the differences.
SKIB8739E
Unit name Symptom
ECM
Normal operation.
BCM
EPS control unit
Combination meter
ABS actuator and electric unit (control unit)
TCM
IPDM E/R
SELECT SYSTEM (CONSULT-II) Difference of symptom
Data link connector branch line open cir-
cuit All Diag on CAN units are not
indicated. Normal operation.
CAN-H, CAN-L harness short-circuit Most the units which are connected to the CAN com-
munication system enter fail-safe mode or are deac-
tivated.

TROUBLE DIAGNOSIS LAN-13
[CAN FUNDAMENTAL]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
CAN Diagnostic Support MonitorNKS004MF
CONSULT-II and CAN diagnostic support monitor (on-board diagnosis function) are used for detecting root
cause.
MONITOR ITEM (CONSULT-II)
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
SKIB8742E
Item PRSNT Description
Initial diagnosis OK Normal at present
NG Control unit error (Except for some control units)
Transmission diagnosis OK Normal at present
UNKWN Unable to transmit signals for 2 seconds or more.
Diagnosis not performed
Control unit name
(Reception diagnosis) OK Normal at present
UNKWN Unable to receive signals for 2 seconds or more.
Diagnosis not performed
No control unit for receiving signals. (No applicable optional parts)
Item PRSNT PAST Description
Transmission diagnosis OK OK Normal at present and in the past
1 – 39 Normal at present, but unable to transmit signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to transmit signals for 2 seconds or more at present.
Control unit name
(Reception diagnosis) OK
OK Normal at present and in the past
1 – 39 Normal at present, but unable to receive signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to receive signals for 2 seconds or more at present
–– Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)

LAN-14
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communication diagnosis result is received from the vehicle monitor. (CONSULT-II is
not available.)
Example: Vehicle Display
Item Result indi-
cated Error counter Description
CAN_COMM
(Initial diagnosis) OK 0 Normal at present
NG 1 – 50 Control unit error
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_1
(Transmission diagnosis) OK 0 Normal at present
UNKWN 1 – 50 Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_2 – 9
(Reception diagnosis of each unit) OK 0 Normal at present
UNKWN 1 – 50 Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
Diagnosis not performed.
No control unit for receiving signals. (No applicable optional
parts)

TROUBLE DIAGNOSES WORK FLOW LAN-15
[CAN FUNDAMENTAL]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
TROUBLE DIAGNOSES WORK FLOWPFP:00004
Information Needed for Trouble DiagnosisNKS004MG
CAN communication system performs trouble diagnosis with the following tools.
How to Use CAN Communication Signal ChartNKS004MH
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
Tool Usage
Interview sheet For filling in vehicle information and interview with customer.
Data sheet For attaching CONSULT-II data or on-board diagnosis data.
Diagnosis sheet For detecting the root cause. (Diagnosis sheet includes system diagram for every CAN system
type)
SELECT SYSTEM
(CONSULT-II)
For checking the condition of control units and the status of CAN communication.
SELF-DIAG RESULTS
(CONSULT-II)
CAN DIAG SUPPORT MNTR
(CONSULT-II)
CAN communication signal
chart For converting information received from a customer into CAN communication signal transmission
and reception. This information can be used to judge whether a circuit between control units is nor-
mal or abnormal.
Abbreviation list For checking abbreviations in CAN communication signal chart and diagnosis sheet.
SKIB8715E

LAN-26
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW
Revision: 2006 July 2007 FX35/FX45
Present Error — Open Circuit —
Identify the error circuit using information from the “SELECT SYSTEM” and “CAN DIAG SUPPORT MNTR”
screens.
1. SELECT SYSTEM: Check the items indicated in “SELECT SYSTEM”. Draw a line on the diagnosis sheet to indicate the error circuit.
NOTE:
CAN communication line has no error if units other than Diag on CAN units are indicated. An error may be
on the power supply of the control unit, DDL1 line or DDL2 line.
a. “TRANSMISSION” which is Diag on CAN unit, is not indicated on “SELECT SYSTEM” screen. This indi- cates that DLC is not receiving a signal from TCM. Draw a line to indicate an error between DLC and TCM
(line 1-a in the figure).
NOTE:

Diag on CAN units are not indicated on the “SELECT SYSTEM” screen when the CAN line between
Diag on CAN unit and the data link connector is open.

For a description of Diag on CAN, refer to LAN-6, "Diag on CAN" .
SKIB8892E