2008 INFINITI FX35 light

AUTO LIGHT SYSTEMLT-57
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
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
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.
CONSULT-III Functions (IPDM E/R)INFOID:0000000001328318
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
FR FOG SW “ON/OFF” Displays status (front fog lamp switch: ON/Oth
ers: 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” Display s status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Display s 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
Te s t i t e m D e s c r i p t i o n
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 fog lamp relay to operate by switching ON-OFF.
DTRL
NOTE 1Allows day time light lamp operate by switching ON-OFF.
CORNERING LAMP
NOTE 2—
Check Item, Diagnosis Mode Description
SELF-DIAGNOSTIC RESULTS Refer to PG-18, "
CONSULT-III Function (IPDM E/R)".
DATA MONITOR The input/output data of IPDM E/R is displayed in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST IPDM E/R sends a drive signal to electronic components to check their operation.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-58
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
DATA MONITOR
All Signals, Main Signals, Selection From Menu
NOTE:
Perform monitoring of IPDM E/R data with ignition switch ON. When ignition switch is at ACC, the display may
not be correct.
ACTIVE TEST
Symptom ChartINFOID:0000000001328319
Lighting Switch InspectionINFOID:0000000001381749
1.CHECK LIGHTING SWITCH INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select “AUTO LIGHT SW” of BCM (HEAD LAMP) data monitor item.
2. With operating the lighting switch AUTO, check the monitor status.
CHECK THE COMBINATION SWITCH
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> INSPECTION END
NG >> Check combination switch (lighting switch). Refer to LT-104, "
Combination Switch Inspection".
Item nameCONSULT-III
screen display Display
or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Position lights reques t TAIL & CLR REQ ON/OFF ×× ×Signal status input from BCM
Headlamp low beam request HL LO REQ ON/OFF ×× ×Signal status input from BCM
Headlamp high beam request HL HI REQ ON/OFF ×× ×Signal status input from BCM
Front fog lights request FR FOG REQ ON/OFF ×× ×Signal status input from BCM
Te s t i t e mCONSULT-III
screen display Description
Headlamp relay (HI, LO) output LAMPSAllows headlamp relay (HI, LO) to operate by switching operation (OFF, HI ON,
LO ON) at your option (Head lamp high beam repeats ON-OFF every 1 second).
Front fog lamp relay output Allows fog lamp relay to operate by switching operation ON-OFF at your option.
Tail lamp relay output TAIL LAMP Allows tail lamp relay to operate by switching operation ON-OFF at your option.
Trouble phenomenon Malfunction system and reference
 Parking, license plate, side marker and tail lamps and head- lamps will not illuminate when outside of the vehicle be-
comes dark. (Lighting switch 1ST position and 2ND position
operate normally.)
 Parking, license plate, side marker and tail lamps and head-
lamp will not go out when outside of the vehicle becomes
light. (Lighting switch 1ST position and 2nd position operate
normally.)
 Headlamps go out when outside of the vehicle becomes light, but parking lamps stay on. Refer to
LT- 5 6 , "
CONSULT-III Functions (BCM)".
Refer to LT- 5 8 , "
Lighting Switch Inspection".
Refer to LT- 5 9 , "
Optical sensor System Inspection".
If above systems are normal, replace BCM.
Shut off delay feature will not operate.  CAN communication line inspection between BCM and combination
meter. Refer to PG-24, "
U1000 CAN COMM CIRCUIT".
Refer to BL-38, "
Check Door Switch".
If above system is normal, replace BCM.
When lighting switch is AUTO
position : AUTO LIGHT SW ON
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AUTO LIGHT SYSTEMLT-59
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
Optical sensor System InspectionINFOID:0000000001381750
1.CHECK OPTICAL SENSOR INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “OPTICAL SENSOR” of BC M (HEAD LAMP) data monitor item.
3. Turn the lighting switch AUTO.
4. With the optical sensor illuminat ing, check the monitor status.
CAUTION:
Optical sensor must be securely subject ed to work lamp light. If optical sensor is insufficiently illumi-
nated, the measured value may not satisfy the standard.
CHECK BCM
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector M3 terminal 14
and ground.
CAUTION:
Optical sensor must be securely su bjected to work lamp light. If
optical sensor is insufficiently illuminated, the measured value
may not satisfy the standard.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and optical sensor connector.
3. Check continuity (open circuit) between BCM harness connector M3 terminal 17 and optical sensor harness connector M37 ter-
minal 1.
4. Check continuity (short circuit) between BCM harness connector M3 terminal 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK OPTICAL SENS OR SIGNAL CIRCUIT
Illuminated
OPTICAL SENSOR : 3.1 V or more
Not illuminated
OPTICAL SENSOR : 0.6 V or less
Illuminated
OPTICAL SENSOR : 3.1 V or more
Not illuminated
OPTICAL SENSOR : 0.6 V or less
PKIB6163E
17 – 1 : Continui
ty should exist.
17 – Ground : Continuity should not exist.
SKIA5891E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-60
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
1. Check continuity (open circuit) between BCM harness connectorM3 terminal 14 and optical sensor harness connector M37 ter-
minal 2.
2. Check continuity (short circuit) between BCM harness connector M3 terminal 14 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK OPTICAL SENSOR GROUND CIRCUIT
1. Check continuity (open circuit) between BCM harness connector M3 terminal 18 and optical sensor harness connector M37 ter-
minal 3.
2. Check continuity (short circuit) between BCM harness connector M3 terminal 18 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK OPTICAL SENSOR VOLTAGE
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M3 terminal 17 and ground.
OK or NG
OK >> Replace optical sensor.
NG >> Replace BCM. Refer to BCS-13, "
Removal and Installa-
tion of BCM".
Removal and Installation of Optical SensorINFOID:0000000001328322
REMOVAL
1. Insert a screwdriver or similar tool and remove front defroster
grill (LH). Refer to IP-11, "
Removal and Installation".
2. Disconnect optical sensor connector.
3. Remove optical sensor.
INSTALLATION
Installation is the reverse order of removal. 14 – 2 : Continuity should exist.
14 – Ground : Continuity should not exist.
SKIA5892E
18 – 3 : Continuity should exist.
18 – Ground : Continuity should not exist.
SKIA5893E
17 – Ground : Approx. 5 V
SKIA5894E
PKIA5275E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-66
< SERVICE INFORMATION >
FRONT FOG LAMP
FRONT FOG LAMP
Component Parts and Harness Connector LocationINFOID:0000000001328327
System DescriptionINFOID:0000000001328328
Control of the front fog lamps is dependent upon the position of the combination switch (lighting switch). The
lighting switch must be in the 2ND position or AUTO position (headlamp is ON) for front fog lamp opera-
tion.When the lighting switch is placed in the front fog lamp on position the BCM (body control module)
receives input signal requesting the front fog lamps to illuminate. When the headlamps are illuminated, this
input signal is communicated to the IPDM E/R (inte lligent power distribution module engine room) through the
CAN communication lines. The CPU (central processing unit) located in the IPDM E/R controls the front fog
lamp relay coil. When activated, this relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times
 to ignition relay, located in IP DM E/R, from battery direct,
 through 15A fuse (No. 88, located in IPDM E/R)
 to front fog lamp relay, located in IPDM E/R,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 10A fuse (No. 71, 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.
When ignition switch is in ON or START position, power is supplied
 to ignition relay (located IPDM E/R)
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38.
When ignition switch is in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
PKIB3475E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FOG LAMPLT-67
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
 to BCM terminals 49 and 52
 through grounds M35, M45 and M85,
 to IPDM E/R terminals 38 and 60
 through grounds E21, E50 and E51.
FRONT FOG LAMP OPERATION
The front fog lamp switch is built into combination s witch. The lighting switch must be in the 2ND position or
AUTO position (headlamp is ON) and the front fog lamp switch must be ON for front fog lamp operation.
With the front fog lamp switch in the ON position, t he CPU located in the IPDM E/R grounds the coil side of the
front fog lamp relay. The front fog lamp relay then directs power
 through IPDM E/R terminal 36
 to front fog lamp RH terminal 1,
 through IPDM E/R terminal 37
 to front fog lamp LH terminal 1.
Ground is supplied
 to front fog lamp RH and LH terminals 2
 through grounds E21, E50 and E51.
With power and grounds supplied, front fog lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), the front fog lamp switch is ON, and
the ignition switch is turned from ON or ACC to OF F, the battery saver control feature is activated.
Under this condition, the front fog lamps (and headlamps ) remain illuminated for 5 minutes, then the front fog
lamps (and headlamps) are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.
CAN Communication System DescriptionINFOID:0000000001328329
CAN (Controller Area Network) is a serial communication li ne 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 UnitINFOID:0000000001328330
Refer to LAN-43, "CAN System Specification Chart".
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FOG LAMPLT-69
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
LT
N
O P
Terminal and Reference Value for BCMINFOID:0000000001328332
CAUTION:
 Check combination switch system terminal wavef orm under the loaded condition with lighting
switch, turn signal switch an d wiper switch OFF not to be fluctuated by overloaded.
 Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-III. Refer to LT-
103, "CONSULT-III Functions (BCM)".
TKWM4304E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

LT-70
< SERVICE INFORMATION >
FRONT FOG LAMP
Terminal and Reference Value for IPDM E/R
INFOID:0000000001328333
Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
3L/B Combination
switch input 4
ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Front fog lamp switch
(Operates only front fog
lamp switch)
Approx. 0.8 V
11 L G Ignition switch
(ACC)
ACC — Battery voltage
32 GY/R Combination
switch output 5 ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Front fog lamp switch
(Operates only front fog
lamp switch) Approx. 1.0 V
38 W/L Ignition switch
(ON)
ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
PKIB4955J
PKIB4960J
PKIB4956J
Te r m i -
nal
No. Wire
color Signal
name Measuring condition
Reference value
Ignition
switch Operation or condition
36 W Front fog
lamp (RH)
ONLighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON. OFF Approx. 0 V
ON Battery voltage
37 SB Front fog
lamp (LH)
ONLighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON. OFF Approx. 0 V
ON Battery voltage
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C