control INFINITI FX35 2004 Service Manual

HEADLAMP - XENON TYPE -
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HEADLAMP - XENON TYPE -PFP:26010
Component Parts and Harness Connector LocationAKS007M9
System DescriptionAKS007MA
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) across the CAN communication lines. The central pro-
cessing unit of 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 (intelligent power distribution module engine room)]

to headlamp low relay [located in IPDM E/R (intelligent power distribution module engine room)]

to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

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

to BCM (body control module) terminal 55

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

to BCM (body control module) terminal 42

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

to combination meter terminal 8.
PKIA5270E

LT-8
HEADLAMP - XENON TYPE -
Revision: 2004 November 2004 FX35/FX45
With the ignition switch in the ON or START position, power is supplied

to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]

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

to BCM (body control module) terminal 38

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 7.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM (body control module) terminal 11.
Ground is supplied

to BCM (body control module) terminals 49 and 52

through grounds M35, M45 and M85

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU in the
IPDM E/R controls the headlamp low relay coil, which when energized, directs power

to 15A fuse [No. 76, located in IPDM E/R]

through IPDM E/R terminal 20

to headlamp RH terminal 6

to 15A fuse [No. 86, located in IPDM E/R]

through IPDM E/R terminal 30

to headlamp LH terminal 6.
Ground is supplied

to headlamp RH terminal 7

through grounds E21, E50 and E51

to headlamp LH terminal 7

through grounds E21, E50 and E51.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input signal
requesting the headlamp high beams to illuminate. This input signal is communicated to the IPDM E/R across
the CAN communication lines. The CPU in the IPDM E/R controls the headlamp high relay coil and low relay
coil, which when energized, directs power

to 15A fuse [No. 76, located in IPDM E/R]

through IPDM E/R terminal 20

to headlamp RH terminal 6, and

to 15A fuse [No. 86, located in IPDM E/R]

through IPDM E/R terminal 30

to headlamp LH terminal 6

to 10A fuse [No. 72, located in IPDM E/R]

through IPDM E/R terminal 27

to headlamp RH terminal 5, and

to 10A fuse [No. 74, located in IPDM E/R]

through IPDM E/R terminal 28

to headlamp LH terminal 5.

HEADLAMP - XENON TYPE -
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Ground is supplied

to headlamp RH terminal 7

through grounds E21, E50 and E51

to headlamp LH terminal 7

through grounds E21, E50 and E51.
With power and ground supplied, the high beam headlamps 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.
The unified meter and A/C amp that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 4 , "System Description" in “AUTO LIGHT SYSTEM”.
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-181, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type headlamp is adopted to the low and high beam headlamps. Xenon bulbs do not use a filament.
Instead, they produce light when a high voltage current is passed between two tungsten electrodes through a
mixture of xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic
control of the power supply gives the headlamps stable quality and tone color.
Following are some of the many advantages of the xenon type headlamp.

The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

The light features a high relative spectral distribution at wavelengths to which the human eye is most sen-
sitive. This means that even in the rain, more light is reflected back from the road surface toward the vehi-
cle, for added visibility.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionAKS007MB
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 UnitAKS0080S
Refer to LAN-6, "CAN Communication Unit" .

LT-18
HEADLAMP - XENON TYPE -
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
CONSULT-II Functions (BCM)AKS007MJ

CONSULT-II executes the following functions by combining data reception and command transmission via
the communication line from BCM. Work support, self-diagnosis, data monitor, and active test display.
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 the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn igni-
tion switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E
BCM diagnosis part Check item, diagnosis mode Description
HEADLAMPWORK 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 CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
PBIB1503E
SKIA3098E

HEADLAMP - XENON TYPE -
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Revision: 2004 November 2004 FX35/FX45
3. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
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 item on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. Touch “CHANGE SET”.
6. The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.
7. Touch “END”.
Display Item List
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 the “DATA MONITOR” screen.
4. Touch “START”.
5. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is selected, all the items will be monitored.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
PKIA5222E
PKIA5226E
Item Description CONSULT-II Factory setting
BATTERY SAVER
SETExterior lamp battery saver control mode can be changed in this mode.
Selects exterior lamp battery saver control mode between two ON/OFF.ON×
OFF —
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects and monitors individual signal.

HEADLAMP - XENON TYPE -
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NOTE:
1. Vehicles without daytime light lamp system display this item, but cannot monitor it.
2. This item is displayed, but cannot monitor it.
CONSULT-II Functions (IPDM E/R)AKS007MK
CONSULT-II can display each diagnostic item using the following diagnostic test modes: work support, self-
diagnostic results, data monitor and active test through data reception and command transmission via the
IPDM E/R CAN communication line.
CONSULT-II 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 the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
DTRLNOTE 1Allow day time light lamp operate by switching ON–OFF.
CORNERING LAMP
NOTE 2— Test item Description
Inspection Item, Diagnosis Mode Description
SELF-DIAGNOSTIC RESULTS The IPDM E/R performs self-diagnosis of CAN communication.
DATA MONITOR The input/output data of the 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 The IPDM E/R sends a drive signal to electronic components to check their operation.
PBIB1503E
SKIA3098E

HEADLAMP - XENON TYPE -
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Revision: 2004 November 2004 FX35/FX45
6. CHECK HEADLAMP GROUND
1. Turn ignition switch OFF.
2. Check continuity between front combination lamp RH harness
connector E24 terminal 7 (B) and ground.
3. Check continuity between front combination lamp LH harness
connector E44 terminal 7 (B) and ground.
OK or NG
OK >> Check headlamp harness and connectors, ballasts (HID
control unit), and xenon bulbs. Refer to LT- 3 3 , "
Xenon Headlamp Trouble Diagnosis" .
NG >> Repair harness or connector.
Headlamp Low Beam Does Not Illuminate (One Side)AKS007MP
1. CHECK BULB
Check ballasts (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to LT- 3 3 , "
Xenon
Headlamp Trouble Diagnosis" .
OK or NG
OK >> GO TO 2.
NG >> Repair malfunctioning part.
2. CHECK HEADLAMP CIRCUIT
1. Disconnect IPDM E/R connector and front combination lamp RH
or LH connector.
2. Check continuity between IPDM E/R harness connector E7 ter-
minal 20 (LG) and front combination lamp RH harness connec-
tor E24 terminal 6 (LG).
3. Check continuity between IPDM E/R harness connector E7 ter-
minal 30 (GY) and front combination lamp LH harness connec-
tor E44 terminal 6 (GY).
OK or NG
OK >> GOTO 3.
NG >> Repair harness or connector.
3. CHECK HEADLAMP GROUND
1. Check continuity between front combination lamp RH harness
connector E24 terminal 7 (B) and ground.
2. Check continuity between front combination lamp LH harness
connector E44 terminal 7 (B) and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness or connector.7 (B) – Ground : Continuity should exist.
7 (B) – Ground : Continuity should exist.
PKIA5207E
20 (LG) – 6 (LG) : Continuity should exist.
30 (GY) – 6 (GY) : Continuity should exist.
PKIA5209E
7 (B) – Ground : Continuity should exist.
7 (B) – Ground : Continuity should exist.
PKIA5207E

LT-30
HEADLAMP - XENON TYPE -
Revision: 2004 November 2004 FX35/FX45
Headlamp RH Low Beam and High Beam Do Not Illuminate AKS007MQ
1. CHECK BULB
Check ballasts (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to LT- 3 3 , "
Xenon
Headlamp Trouble Diagnosis" .
OK or NG
OK >> GO TO 2.
NG >> Repair malfunctioning part.
2. CHECK HEADLAMP GROUND
1. Disconnect front combination lamp RH connector.
2. Check continuity between front combination lamp RH harness
connector E24 terminal 7 (B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK HEADLAMP CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E7 ter-
minal 27 (BR) and front combination lamp RH harness connec-
tor E24 terminal 5 (BR).
3. Check continuity between IPDM E/R harness connector E7 ter-
minal 20 (LG) and front combination lamp RH harness connec-
tor E24 terminal 6 (LG).
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness or connector.
Headlamp LH Low Beam and High Beam Do Not Illuminate AKS007MR
1. CHECK BULB
Check ballasts (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to LT- 3 3 , "
Xenon
Headlamp Trouble Diagnosis" .
OK or NG
OK >> GO TO 2.
NG >> Repair malfunctioning part.7 (B) – Ground : Continuity should exist.
PKIA5207E
27 (BR) – 5 (BR) : Continuity should exist.
PKIA5210E
20 (LG) – 6 (LG) : Continuity should exist.
PKIA5211E

HEADLAMP - XENON TYPE -
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Revision: 2004 November 2004 FX35/FX45
CAUTION:AKS007MT

Installation or removal of the connector must be done with the lighting switch OFF.

When the lamp is illuminated (when the lighting switch is ON), do not touch the harness, HID control unit,
inside of the lamp, or the lamp metal parts.

To check illumination, temporarily install lamp in the vehicle. Be sure to connect power at the vehicle-side
connector.

If the error can be traced directly to the electrical system, first check for items such as burned-out fuses
and fusible links, broken wires or loose connectors, pulled-out terminals, and improper connections.

Do not work with wet hands.

Using a tester for HID control unit circuit trouble diagnosis is prohibited.

Disassembling the HID control unit or harnesses (bulb socket harness, ECM harness) is prohibited.

Immediately after illumination, the light intensity and color will fluctuate, but there is nothing wrong.

When the bulb has reached the end of its lifetime, the brightness may drop significantly, it may flash
repeatedly, or the light may turn a reddish color.
Xenon Headlamp Trouble DiagnosisAKS007MU
1. CHECK 1: XENON HEADLAMP LIGHTING
Install normal xenon bulb to corresponding xenon bulb headlamp, and check if lamp lights up.
OK or NG
OK >> Replace xenon bulb.
NG >> GO TO 2.
2. CHECK 2: XENON HEADLAMP LIGHTING
Install normal HID control unit to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Replace HID control unit.
NG >> GO TO 3.
3. CHECK 3: XENON HEADLAMP LIGHTING
Install normal xenon lamp housing assembly to corresponding xenon headlamp, and check if lamp lights up.
OK or NG
OK >> Malfunction in starter (boosting circuit) in xenon headlamp housing. (Replace xenon headlamp
housing assembly.)
NG >> INSPECTION END

HEADLAMP - XENON TYPE -
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NOTE:
After installation, perform aiming adjustment. Refer to LT- 3 4 , "
Aiming Adjustment" .
Disassembly and Assembly AKS007MY
DISASSEMBLY
1. Turn plastic cap counterclockwise and unlock it.
2. Turn xenon bulb socket counterclockwise, and unlock it.
3. Unlock retaining spring, and remove xenon bulb.
4. Disconnect HID control unit connector, and remove HID control unit screws.
5. Turn parking lamp bulb socket counterclockwise and unlock it.
6. Remove parking lamp bulb from its socket.
7. Turn front turn signal lamp bulb socket counterclockwise and unlock it.
8. Remove front turn signal lamp bulb from its socket.
9. Turn front side marker lamp bulb socket counterclockwise and unlock it.
10. Remove front side marker lamp bulb from its socket.
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.
CAUTION:

When HID control unit is removed, reinstall it securely and avoid any looseness.

After installing bulb, be sure to install plastic cap and bulb socket securely to insure watertight-
ness. Headlamp mounting bolt
: 6.1 N·m (0.62 kg-m, 54 in-lb)
1. Headlamp housing assembly 2. Side marker lamp bulb 3. Side marker lamp bulb socket
4. Plastic cap 5. Seal packing 6. Screw
7. HID C/U 8. Parking lamp (Clearance lamp) bulb socket 9. Parking lamp (Clearance lamp) bulb
10. Retaining spring 11. Front turn signal lamp bulb 12. Front turn signal lamp bulb socket
13. Xenon bulb 14. Xenon bulb socket 15. Seal packing
PKIA6525E
HID control unit mounting screw
: 3.2 N·m (0.33 kg-m, 28 in-lb)