2008 INFINITI FX35 Service Manual

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Page 3153 of 3924

INFINITI FX35 2008 Service Manual
AUTO LIGHT SYSTEMLT-51
< SERVICE INFORMATION >
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TKWM4298E
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INFINITI FX35 2008 Service Manual
LT-52
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
Terminal and Reference Value for BCM
INFOID:0000000001328313
CAUTION:
Check combination switch system terminal waveform under the loaded condition w

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INFINITI FX35 2008 Service Manual
AUTO LIGHT SYSTEMLT-53
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Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition

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INFINITI FX35 2008 Service Manual
LT-54
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
NOTE:
Optical sensor must be securely subjected to work lamp light. If optical sensor is insufficiently illuminated, the measured value may not
satisfy

LT-54
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
NOTE:
Optical sensor must be securely subjected to work lamp light. If optical sensor is insufficiently illuminated, the measured value may not
satisfy standard.
Terminal and Reference Value for IPDM E/RINFOID:0000000001328314
How to Proceed with Trouble DiagnosisINFOID:0000000001328315
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-47, "
System Description".
3. Perform Preliminary Check. Refer to LT-55, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction. Refer to LT-58, "
Symptom Chart".
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power supply OFF — Battery voltage
58 L Back door switch signal OFF Back door closure
motor (door switch)ON (open) Approx. 0 V
OFF (closed) Battery voltage
62 W Front door switch
(Driver side) signal OFFFront door switch
(Driver side) ON (open) Approx. 0 V
OFF (closed)
Approx. 7.0 - 7.5 V
63 P Rear door switch LH
signal OFF Rear door switch LH ON (open) Approx. 0 V
OFF (closed) Battery voltage
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
positionOFF Approx. 0 V
ON Battery voltage
22 R Parking, license plate, side
marker and tail lamps ON
Lighting switch 1ST po-
sition OFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS positionOFF Approx. 0 V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS positionOFF Approx. 0 V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
positionOFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H—— —
49 R CAN − L—— —
60 B Ground ON — Approx. 0 V
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INFINITI FX35 2008 Service Manual
AUTO LIGHT SYSTEMLT-55
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5. Does auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:

Page 3158 of 3924

INFINITI FX35 2008 Service Manual
LT-56
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-III Functions (BCM)

LT-56
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-III Functions (BCM)INFOID:0000000001328317
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
WORK SUPPORT
Work Support Setting Item
DATA MONITOR
Display Item List
BCM connector Terminal
GroundContinuity
M4 49
Ye s
52
SKIA5294E
BCM diagnosis part Diagnosis mode Description
HEADLAMP WORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCM SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
Work item Description
CUSTOM A/LIGHT SETTING Auto light sensitivity can be changed in this mode. Sensitivity can be adjusted in four modes.
MODE 1 (Normal)/ MODE 2 (sensitive)/MODE 3 (Desensitized)/MODE4 (Insensitive)
ILL DELAY SET Auto light delay off timer period can be changed in this mode. Selects auto light delay off timer period among eight
modes.
MODE 1 (45 sec.)/MODE 2 (OFF)/MODE
3 (30 sec.)/MODE 4 (60 sec.)/MODE 5 (90 sec.)/MODE 6 (120 sec.)/
MODE 7 (150 sec.)/ MODE 8 (180 sec.)
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN posi tion (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/O FF, Ignition OFF (OFF)” status judged from ignition switch signal.
HI BEAM SW “ON/OFF” Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from light-
ing switch signal.
HEAD LAMP SW 1 “ON/OFF” Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 1 judged from
lighting switch signal.
HEAD LAMP SW 2 “ON/OFF” Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from
lighting switch signal.
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.
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INFINITI FX35 2008 Service Manual
AUTO LIGHT SYSTEMLT-57
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NOTE:
1. Vehicles without auto light system display this item, but cannot be monitored.
2. Vehicles without daytime ligh

AUTO LIGHT SYSTEMLT-57
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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.
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Page 3160 of 3924

INFINITI FX35 2008 Service Manual
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

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
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