2006 INFINITI FX35 engine

CAN COMMUNICATION LAN-41
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 December 2006 FX35/FX45
Input/Output Signal Chart
T: Transmit R: Receive
Signals ECM TCM Dis-
play
control unit AW D
control unit Intelli-
gent
Key unit BCM Stee r-
ing
angle
sensor Unified
meter
and A/
C amp. ABS
actua-
tor and elec-
tric unit (con-trol
unit) Driver
seat
control unit IPDM
E/R
A/C compressor feedback
signal TR
A/C compressor request
signal T
R
Accelerator pedal position
signal TR R R
ASCD CRUISE lamp sig-
nal TR
ASCD OD cancel request
signal TR
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position
signal TR
Cooling fan speed request
signal T
R
Engine coolant tempera-
ture signal TR
Engine speed signal T R R R R R
Engine status signal T R
Fuel consumption monitor
signal TR
RT
Malfunction indicator lamp
signal TR
Wide open throttle posi-
tion signal TR
Snow mode switch signal R T
A/T CHECK indicator
lamp signal TR
A/T self-diagnosis signal R T
Current gear position sig-
nal TR
Manual mode indicator
signal TR
Output shaft revolution
signal RT
P range signal T R R
Shift position indicator sig-
nal TR
Turbine revolution signal R T
A/C switch/indicator signal TR
RT

LAN-44
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
TYPE 6
System Diagram

Ty p e 6
Input/Output Signal Chart
T: Transmit R: Receive
PKIB4174E
Signals ECM TCM Dis-
play
con- trol
unit AW D
con-
trol
unit ICC
unit Intel-
ligent
Key unit BCM Steer-
ing
angle sen-
sor LDW
cam-
era
unit Uni-
fied
meter
and
A/C
amp. ICC
sen- sor ABS
actu-
ator and
elec-
tric
unit
(con-
trol
unit) Driver
seat
con- trol
unit IPDM
E/R
A/C compressor
feedback signal TR
A/C compressor
request signal T
R
Accelerator pedal
position signal TR R R R
ASCD OD cancel
request signal TR
ASCD operation sig-
nal TR
Battery voltage sig-
nal TR
Closed throttle posi-
tion signal TR R
Cooling fan speed
request signal T
R
Engine coolant tem-
perature signal TR
Engine speed signal T R R R R R R
Engine status signal T R
Fuel consumption
monitor signal TR
RT

HEADLAMP - XENON TYPE - LT-7
C
D E
F
G H
I
J
L
M A
B
LT
Revision: 2006 December 2006 FX35/FX45
HEADLAMP - XENON TYPE -PFP:26010
Component Parts and Harness Connector LocationNKS002V5
System DescriptionNKS002V6
Control of the headlamp system operation is dependent upon the position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R controls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times

to headlamp high relay, located in IPDM E/R

to headlamp low relay, located in IPDM E/R and

to ignition relay, located in IPDM E/R, from battery direct,

through 10A fuse (No. 71, located in IPDM E/R)

to CPU located in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

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

to BCM terminal 55,

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

to BCM terminal 42,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
PKIC9683E

LT-20
HEADLAMP - XENON TYPE -
Revision: 2006 December 2006 FX35/FX45
NOTE: 1. Vehicles without auto light system display this item, but cannot be monitored.
2. Vehicles without daytime light system display this item, but cannot be monitored.
3. This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “OFF” deactivates the operation.
Display Item List
NOTE: 1. Vehicles without daytime light lamp system display this item, but cannot be tested.
2. This item is displayed, but cannot be tested.
LIGHT SW 1 ST “ON/OFF”
Displays status (lighting switch 1ST or 2ND position: ON/Others: OFF) of lighting switch
judged from lighting switch signal.
AUTO LIGHT SW
NOTE 1 “ON/OFF” Displays status of lighting switch as judged from lighting switch signal. (AUTO position:
ON/Other than AUTO position: OFF)
PASSING SW “ON/OFF” Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from
lighting switch signal.
FR FOG SW “ON/OFF” Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch judged
from lighting switch signal.
RR FOG SW
NOTE 3“OFF” —
DOOR SW - DR “ON/OFF” Displays status of driver door as judged from driver door switch signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - AS “ON/OFF” Displays status of passenger door as judged from passenger door switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - RR “ON/OFF” Displays status of rear door as judged from rear door switch (RH) signal. (Door is open:
ON/Door is closed: OFF)
DOOR SW - RL “ON/OFF” Displays status of rear door as judged from rear door switch (LH) signal. (Door is open:
ON/Door is closed: OFF)
BACK DOOR SW “ON/OFF” Displays status of back door as judged from back door switch signal. (Door is open: ON/
Door is closed: OFF)
TURN SIGNAL R “ON/OFF” Displays status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
ENGINE RUN
NOTE 2“ON/OFF” Displays status (Engine running: ON/Others: OFF) as judged from engine status signal.
PKB SW
NOTE 2“ON/OFF” Displays status (Parking brake switch: ON/Others: OFF) as judged from parking brake
switch signal.
CARGO LAMP SW
NOTE 3 “OFF” —
OPTICAL SENSOR
NOTE 1 “0 - 5 V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
HEAD LAMP Allows headlamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DTRL
NOTE 1Allows daytime light lamp operate by switching ON-OFF
CORNERING LAMP
NOTE 2—

LT-34
HEADLAMP - XENON TYPE -
Revision: 2006 December 2006 FX35/FX45
Aiming AdjustmentNKS002VS
PREPARATION BEFORE ADJUSTING
For details, refer to the regulations in your own country.
Before performing aiming adjustment, check the following.
1. Keep all tires inflated to correct pressures.
2. Place vehicle on level ground.
3. Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver's position). Coolant, engine oil filled up to correct level and full fuel tank.
LOW BEAM AND HIGH BEAM
1. Turn headlamp low beam ON.
CAUTION:
Be sure aiming switch is set to “0” when performing aiming
adjustment.
2. Use adjusting screws to perform aiming adjustment.
PKIC9684E
PKIB3650E

DAYTIME LIGHT SYSTEM LT-39
C
D E
F
G H
I
J
L
M A
B
LT
Revision: 2006 December 2006 FX35/FX45
DAYTIME LIGHT SYSTEMPFP:284B2
Component Parts and Harness Connector LocationNKS002VW
System DescriptionNKS002VX
Daytime light system turns ON daytime light lamps while driving. Daytime light lamps are not turned ON if
engine is activated with parking brake ON. Release parking brake to turn ON daytime light lamps. The lamps
turn OFF when the lighting switch is in the 2ND position or AUTO position (headlamp is ON) and when the
lighting switch is in the PASSING position (daytime light lamps are not turned OFF only by parking brake
itself).
The parking brake signal and engine run or stop signal are sent to BCM (body control module) by CAN com-
munication line, and control daytime light system.
OUTLINE
Power is supplied at all times

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8,

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

to BCM terminal 42,

through 50A fusible link (letter M, located in fuse, fusible link and relay box)
PKIC9686E

LT-40
DAYTIME LIGHT SYSTEM
Revision: 2006 December 2006 FX35/FX45

to BCM terminal 55,

through 10A fuse (No. 36, located in fuse, fusible link and relay box)

to daytime light relay terminals 2 and 5.
When ignition switch is in ON or START position, power is supplied

through 10A fuse [No. 12, located in fuse block (J/B)]

to combination meter terminal 7,

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

to BCM terminal 38.
Ground is supplied

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85,

to BCM terminals 49 and 52

through grounds M35, M45 and M85.
DAYTIME LIGHT OPERATION
Once the parking brake is turned OFF after ignition switch ON, if the lighting switch is turned OFF while engine
running, the BCM sends daytime light request signal (ON) through CAN communication.
When receiving daytime light request signal (ON), combination meter turns ON daytime light relay. And power
is supplied

through daytime light relay terminal 1

to combination meter terminal 10,

through daytime light relay terminal 3

to parking lamp RH and LH terminals 1.
Ground is supplied

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85,

to parking lamp RH and LH terminals 3

through grounds E21, E50 and E51.
With power and grounds supplied, the daytime light lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
AUTO LIGHT OPERATION
Refer to LT- 5 6 , "System Description" .
CAN Communication System DescriptionNKS002VY
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 UnitNKS002VZ
Refer to LAN-32, "CAN Communication Unit" .

LT-52
DAYTIME LIGHT SYSTEM
Revision: 2006 December 2006 FX35/FX45
NOTE: 1. Vehicles without auto light system display this item, but cannot be monitored.
2. Vehicles without daytime light system display this item, but cannot be monitored.
3. This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “OFF” deactivates the operation.
Display Item List
NOTE: 1. Vehicles without daytime light lamp system display this item, but cannot be tested.
2. This item is displayed, but cannot be tested.
DOOR SW - RL “ON/OFF”
Displays status of rear door as judged from rear door switch (LH) signal. (Door is
open: ON/Door is closed: OFF)
BACK DOOR SW “ON/OFF” Displays status of back door as judged from back door switch signal. (Door is open:
ON/Door is closed: OFF)
TURN SIGNAL R “ON/OFF” Displays status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
ENGINE RUN
NOTE 2“ON/OFF” Displays status (Engine running: ON/Others: OFF) as judged from engine status sig-
nal.
PKB SW
NOTE 2“ON/OFF” Displays status (Parking brake switch: ON/Others: OFF) as judged from parking
brake switch signal.
CARGO LAMP SW
NOTE 3 “OFF” —
OPTICAL SENSOR
NOTE 1 “0 – 5 V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged
from optical sensor signal.
Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF
HEAD LAMP Allows headlamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF
DTRL
NOTE 1Allows daytime light lamp operate by switching ON-OFF
CORNERING LAMP
NOTE 2—