INFINITI FX35 2005 Service Manual

LT-62
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
NOTE:
Optical sensor must be securely subjected to work lamp light. If optical sensor is insufficiently illuminated, the measured val ue may not
satisfy standard.
Terminals and Reference Values for IPDM E/RAKS007I4
How to Proceed With Trouble DiagnosisAKS007F0
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 5 5 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 6 3 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction. Refer to LT- 7 0 , "
Symptom Chart" .
5. Does auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
62 W Front door switch
(Driver side) signal OFFFront door switch
(Driver side) ON (open) Approx. 0V
OFF (closed) Battery voltage
63 P Rear door switch LH signal OFF Rear door switch LH ON (open) Approx. 0V
OFF (closed) Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
position OFF Approx. 0V
ON Battery voltage
22 R Parking, license,
and tail lamp ONLighting switch 1ST
position OFF Approx. 0V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS position OFF Approx. 0V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS position OFF Approx. 0V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
position OFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
48 L CAN − H—— —
49 R CAN − L—— —
60 B Ground ON — Approx. 0V

AUTO LIGHT SYSTEM LT-63
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Preliminary CheckAKS007F1
SETTING CHANGE FUNCTIONS

Sensitivity of auto light system can be adjusted using CONSULT-II. Refer to LT- 6 6 , "WORK SUPPORT" .
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES

Check for blown fuses.
Refer to LT- 5 8 , "
Wiring Diagram — AUTO/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, 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 OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and fuse.
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 71
72
74
76
86
Terminal Ignition switch position
(+) (-) OFF ACC ON
Connector Terminal
(Wire color)
M3 11 (LG/R)
Ground Approx. 0V
Battery
voltage Battery
voltage
38 (W/L) Approx. 0V Approx. 0V Battery
voltage
M4 42 (L/R)
Battery
voltage Battery
voltage Battery
voltage
55 (G) Battery
voltage Battery
voltage Battery
voltage
PKIB5197E

LT-64
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
Terminal Continuity
Connector Terminal (Wire color)
Ground Yes
M4 49 (B)
52 (B)
PKIB3545E

AUTO LIGHT SYSTEM LT-65
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Revision: 2005 July 2005 FX
CONSULT-II Functions (BCM)AKS007I5

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to data link connector, then turn ignition switch
ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen. If “BCM” is not indicated, refer to GI-39, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
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.
PBIB1503E
BCIA0029E
BCIA0030E

LT-66
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
4. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
WORK SUPPORT
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3. Touch “CUSTOM A/LIGHT SETTING” or “ILL DELAY SET” on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. Touch “NORMAL” or “MODE 2 - 4” of setting to be changed (CUSTOM A/LIGHT SETTING), Touch “MODE1–8” of setting to be changed (ILL DELAY SET).
6. Touch “SETTING CHANGE”.
7. The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.
8. Touch “END”.
Work Support Setting Item

Sensitivity of auto light can be selected and set from four modes.
DATA MONITOR
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG- NALS” is selected, all the items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop recording, touch “STOP”.
Display Item List
PKIA5226E
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.)
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, 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.

AUTO LIGHT SYSTEM LT-67
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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
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 “BACK” deactivates the operation.
Display Item List
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.
FR FOG SW “ON/OFF” Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch judged from
lighting switch signal.
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 - 5V” Displays “outside brightness (close to 5V when light/close to 0V 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 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—
CARGO LAMP
NOTE 2—

LT-68
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
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-II Functions (IPDM E/R)AKS007I6
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to data link connector, then turn ignition switch
ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “IPDM E/R” on “SELECT SYSTEM” screen. If “IPDM E/R” is not displayed, refer to GI-39, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
Check Item, Diagnosis Mode Description
SELF-DIAGNOSTIC RESULTS Refer to PG-21, "
SELF-DIAG RESULTS" .
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.
PBIB1503E
BCIA0029E
BCIA0030E

AUTO LIGHT SYSTEM LT-69
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4. Select the desired part to be diagnosed on “SELECT DIAG
MODE” screen.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.
3. Touch the required monitoring item on “SELECTION FROM MENU”. In “ALL SIGNALS”, all items are monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording, touch “STOP”.
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
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch item to be tested, and check operation.
3. Touch “START”.
4. Touch “STOP” while testing to stop the operation.
BCIA0031E
ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Selects items and monitors them.
Item name CONSULT-II
screen display Display
or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Position lights request 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 m CONSULT-II
screen display Description
Headlamp relay (HI, LO) output LAMPS Allows 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.

LT-70
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
Symptom ChartAKS007F3
Lighting Switch InspectionAKS007F4
1. CHECK LIGHTING SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “AUTO LIGHT SW” turns ON–OFF linked with operation
of lighting switch.
Without CONSULT-II
Refer to LT- 11 5 , "
Combination Switch Inspection" .
OK or NG
OK >> INSPECTION END
NG >> Check combination switch (lighting switch). Refer to LT-
11 5 , "Combination Switch Inspection" .
Trouble phenomenon Malfunction system and reference

Parking lamps and headlamps will not illuminate when out-
side of the vehicle becomes dark. (Lighting switch 1ST
position and 2ND position operate normally.)

Parking lamps and headlamp 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- 6 6 , "WORK SUPPORT" .

Refer to LT- 7 0 , "Lighting Switch Inspection" .

Refer to LT- 7 1 , "Optical sensor System Inspection" .
If above systems are normal, replace BCM.
Parking lamps illuminate when outside of the vehicle
becomes dark, but headlamps stay off. (Lighting switch 1ST
position and 2ND position operate normally.)

Refer to LT- 6 6 , "WORK SUPPORT" .

Refer to LT- 7 1 , "Optical sensor System Inspection" .
If above systems are normal, replace BCM.
Auto light adjustment system will not operate. (Lighting switch
AUTO, 1ST position and 2ND position operate normally.)

Refer to LT- 7 1 , "Optical sensor System Inspection" .
If above system is normal, replace BCM.
Auto light adjustment system of combination meter will not
operate.

CAN communication line inspection between BCM and combina-
tion meter. Refer to BCS-15, "
CAN Communication Inspection
Using CONSULT-II (Self-Diagnosis)" .
Shut off delay feature will not operate.

CAN communication line inspection between BCM and combina-
tion meter. Refer to BCS-15, "
CAN Communication Inspection
Using CONSULT-II (Self-Diagnosis)" .

Refer to BL-42, "Check Door Switch" .
If above system is normal, replace BCM.
When lighting switch is AUTO
position : AUTO LIGHT SW ON
PKIA7595E

AUTO LIGHT SYSTEM LT-71
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Optical sensor System InspectionAKS007F5
1. CHECK OPTICAL SENSOR INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “OPTICAL SENSOR”, check difference in the voltage
when auto light sensor is illuminated and not illuminated.
CAUTION:
Optical sensor must be securely subjected to work lamp light. If
optical sensor is insufficiently illuminated, the measured value
may not satisfy the standard.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector M3 terminal 14 (P) and ground.
CAUTION:
Optical sensor must be securely subjected 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 (Y/G) and optical sensor harness connector M37
terminal 1 (Y/G).
4. Check continuity (short circuit) between BCM harness connector M3 terminal 17 (Y/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector. Illuminated
OPTICAL SENSOR : 3.1V or more
Not illuminated
OPTICAL SENSOR : 0.6V or less
Illuminated
OPTICAL SENSOR : 3.1V or more
Not illuminated
OPTICAL SENSOR : 0.6V or less
PKIA7596E
PKIB6163E
17 (Y/G) – 1 (Y/G) : Continuity should exist.
17 (Y/G) – Ground : Continuity should not exist.
SKIA5891E