2005 INFINITI FX35 Ignition switch

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

AUTO LIGHT SYSTEM LT-65
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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.

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.

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

LT-72
AUTO LIGHT SYSTEM
Revision: 2005 July 2005 FX
3. CHECK OPTICAL SENSOR SIGNAL CIRCUIT
1. Check continuity (open circuit) between BCM harness connector M3 terminal 14 (P) and optical sensor harness connector M37
terminal 2 (P).
2. Check continuity (short circuit) between BCM harness connector M3 terminal 14 (P) 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 (B) and optical sensor harness connector M37
terminal 3 (B).
2. Check continuity (short circuit) between BCM harness connector M3 terminal 18 (B) 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 (Y/G) and ground.
OK or NG
OK >> Replace optical sensor.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
14 (P) – 2 (P) : Continuity should exist.
14 (P) – Ground : Continuity should not exist.
SKIA5892E
18 (B) – 3 (B) : Continuity should exist.
18 (B) – Ground : Continuity should not exist.
SKIA5893E
17 (Y/G) – Ground : Approx. 5V
SKIA5894E

FRONT FOG LAMP LT-79
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FRONT FOG LAMPPFP:26150
Component Parts and Harness Connector LocationAKS007O5
System DescriptionAKS007CI
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 fog lamp 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 (intelligent power distribution module engine room) across the CAN communi-
cation 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

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, 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.
Power is also supplied at all times

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

through 15A fuse [No. 1, located in fuse block (J/B)]
PKIB3475E