LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION LT
A
B
LT
Revision: 2004 November 2004 FX35/FX45
LIGHTING SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
General precautions for service operations ............. 6
Wiring Diagrams and Trouble Diagnosis .................. 6
HEADLAMP - XENON TYPE - ................................... 7
Component Parts and Harness Connector Location ..... 7
System Description .................................................. 7
OUTLINE ............................................................... 7
COMBINATION SWITCH READING FUNCTION ..... 9
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 9
AUTO LIGHT OPERATION (IF EQUIPPED) ......... 9
VEHICLE SECURITY SYSTEM ............................ 9
XENON HEADLAMP ............................................. 9
CAN Communication System Description ................ 9
CAN Communication Unit ........................................ 9
Schematic .............................................................. 10
Wiring Diagram — H/LAMP — ................................ 11
Terminals and Reference Values for BCM ............. 15
Terminals and Reference Values for IPDM E/R ..... 16
How to Proceed With Trouble Diagnosis ................ 16
Preliminary Check .................................................. 17
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 17
CONSULT-II Functions (BCM) ............................... 18
CONSULT-II BASIC OPERATION ....................... 18
WORK SUPPORT ............................................... 19
DATA MONITOR ................................................. 19
ACTIVE TEST ..................................................... 20
CONSULT-II Functions (IPDM E/R) ....................... 21
CONSULT-II OPERATION .................................. 21
SELF-DIAGNOSTIC RESULTS .......................... 22
DATA MONITOR ................................................. 22
ACTIVE TEST ..................................................... 23
Headlamp Does Not Change To High Beam (Both
Sides) ..................................................................... 23
Headlamp Does Not Change To High Beam (One
Side) ....................................................................... 25
High Beam Indicator Lamp Does Not Illuminate .... 26Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 26
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 29
Headlamp RH Low Beam and High Beam Do Not
Illuminate ................................................................ 30
Headlamp LH Low Beam and High Beam Do Not
Illuminate ................................................................ 30
Headlamps Do Not Turn OFF ................................. 31
CAUTION: .............................................................. 33
Xenon Headlamp Trouble Diagnosis ...................... 33
Aiming Adjustment .................................................. 34
PREPARATION BEFORE ADJUSTING .............. 34
LOW BEAM AND HIGH BEAM ........................... 34
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 35
Bulb Replacement .................................................. 35
HEADLAMP HIGH/LOW BEAM .......................... 35
PARKING LAMP (CLEARANCE LAMP) .............. 36
FRONT TURN SIGNAL LAMP ............................ 36
FRONT SIDE MARKER LAMP ........................... 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 36
Disassembly and Assembly .................................... 37
DISASSEMBLY ................................................... 37
ASSEMBLY ......................................................... 37
DAYTIME LIGHT SYSTEM ....................................... 38
Component Parts and Harness Connector Location ... 38
System Description ................................................. 38
OUTLINE ............................................................. 38
DAYTIME LIGHT OPERATION ........................... 39
COMBINATION SWITCH READING FUNCTION ... 39
AUTO LIGHT OPERATION ................................. 39
CAN Communication System Description .............. 39
CAN Communication Unit ....................................... 39
Schematic ............................................................... 40
Wiring Diagram — DTRL — ................................... 41
Terminals and Reference Values for BCM .............. 45
How to Proceed With Trouble Diagnosis ................ 46
LT-2Revision: 2004 November 2004 FX35/FX45Preliminary Check .................................................. 46
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 46
INSPECTION PARKING BRAKE SWITCH CIR-
CUIT .................................................................... 47
CONSULT-II Functions ........................................... 48
CONSULT-II BASIC OPERATION ....................... 48
DATA MONITOR .................................................. 49
ACTIVE TEST ..................................................... 50
Daytime Light Control Does Not Operate Properly ... 51
Aiming Adjustment .................................................. 53
Bulb Replacement .................................................. 53
Removal and Installation ........................................ 53
Disassembly and Assembly .................................... 53
AUTO LIGHT SYSTEM ............................................. 54
Component Parts and Harness Connector Location ... 54
System Description ................................................. 54
OUTLINE ............................................................. 54
COMBINATION SWITCH READING FUNCTION ... 55
EXTERIOR LAMP BATTERY SAVER CONTROL ... 55
DELAY TIMER FUNCTION ................................. 55
CAN Communication System Description .............. 55
CAN Communication Unit ....................................... 55
Major Components and Functions .......................... 55
Schematic ............................................................... 56
Wiring Diagram — AUTO/L — ................................ 57
Terminals and Reference Values for BCM .............. 60
Terminals and Reference Values for IPDM E/R ...... 61
How to Proceed With Trouble Diagnosis ................ 62
Preliminary Check .................................................. 62
SETTING CHANGE FUNCTIONS ....................... 62
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 62
CONSULT-II Functions (BCM) ................................ 63
CONSULT-II BASIC OPERATION ....................... 64
WORK SUPPORT ............................................... 64
DATA MONITOR .................................................. 65
ACTIVE TEST ..................................................... 66
CONSULT-II Functions (IPDM E/R) ........................ 66
CONSULT-II OPERATION ................................... 66
SELF-DIAGNOSTIC RESULTS ........................... 67
DATA MONITOR .................................................. 67
ACTIVE TEST ..................................................... 68
Trouble Diagnosis Chart by Symptom .................... 68
Lighting Switch Inspection ...................................... 69
Optical Sensor System Inspection .......................... 69
Removal and Installation for Optical Sensor ........... 71
REMOVAL ........................................................... 71
INSTALLATION .................................................... 71
HEADLAMP AIMING CONTROL .............................. 72
Schematic ............................................................... 72
Wiring Diagram — H/AIM — ................................... 73
Removal and Installation ........................................ 76
REMOVAL ........................................................... 76
INSTALLATION .................................................... 76
Switch Circuit Inspection ........................................ 76
FRONT FOG LAMP .................................................. 77
Component Parts and Harness Connector Location ... 77
System Description ................................................. 77OUTLINE ............................................................. 77
COMBINATION SWITCH READING FUNCTION ... 78
EXTERIOR LAMP BATTERY SAVER CONTROL ... 78
CAN Communication System Description .............. 78
CAN Communication Unit ....................................... 78
Wiring Diagram — F/FOG — .................................. 79
Terminals and Reference Values for BCM .............. 81
Terminals and Reference Values for IPDM E/R ...... 82
How to Proceed With Trouble Diagnosis ................ 82
Preliminary Check ................................................... 82
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................... 82
CONSULT-II Functions ........................................... 83
Front Fog Lamps Do Not Illuminate (Both Sides) ... 84
Front Fog Lamp Does Not Illuminate (One Side) .... 86
Aiming Adjustment .................................................. 87
Bulb Replacement ................................................... 88
Removal and Installation ......................................... 88
REMOVAL ............................................................ 88
INSTALLATION .................................................... 88
TURN SIGNAL AND HAZARD WARNING LAMPS ... 89
Component Parts and Harness Connector Location ... 89
System Description ................................................. 89
OUTLINE ............................................................. 89
TURN SIGNAL OPERATION ............................... 89
HAZARD LAMP OPERATION ............................. 90
REMOTE CONTROL ENTRY SYSTEM OPER-
ATION .................................................................. 91
COMBINATION SWITCH READING FUNCTION ... 92
CAN Communication System Description .............. 92
CAN Communication Unit ....................................... 92
Schematic ............................................................... 93
Wiring Diagram — TURN — ................................... 94
Terminals and Reference Values for BCM .............. 97
How to Proceed With Trouble Diagnosis ................ 98
Preliminary Check ................................................... 99
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................... 99
CONSULT-II Functions .........................................100
CONSULT-II BASIC OPERATION .....................100
DATA MONITOR ................................................101
ACTIVE TEST ....................................................101
Turn Signal Lamp Does Not Operate ....................102
Rear Turn Signal Lamp Does Not Operate ...........103
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ............................................105
Turn Signal Indicator Lamp Does Not Operate .....107
Bulb Replacement (Front Turn Signal Lamp) ........107
Bulb Replacement (Rear Turn Signal Lamp) ........107
Removal and Installation of Front Turn Signal Lamp .107
Removal and Installation of Rear Turn Signal Lamp .107
Removal and Installation of Rear Combination
Lamp Control Unit .................................................107
REMOVAL ..........................................................107
INSTALLATION ..................................................107
LIGHTING AND TURN SIGNAL SWITCH ..............108
Removal and Installation .......................................108
REMOVAL ..........................................................108
INSTALLATION ..................................................108
HEADLAMP - XENON TYPE -
LT-9
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
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-26
HEADLAMP - XENON TYPE -
Revision: 2004 November 2004 FX35/FX45
2. CHECK HEADLAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. 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).
4. Check continuity between IPDM E/R harness connector E7 ter-
minal 28 (SB) and front combination lamp LH harness connector
E44 terminal 5 (SB).
OK or NG
OK >> Replace IPDM E/R.
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 headlamp assembly.
NG >> Repair harness or connector.
High Beam Indicator Lamp Does Not IlluminateAKS007MN
1. CHECK BULB
Check bulb of high beam indicator lamp.
OK or NG
OK >> Replace combination meter.
NG >> Replace indicator bulb.
Headlamp Low Beam Does Not Illuminate (Both Sides)AKS007MO
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “HEAD LAMP SW 1” and “HEAD LAMP SW 2” turns ON-
OFF linked with operation of lighting switch.
Without CONSULT-II
Refer to LT- 11 3 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT- 11 3 , "
Combination
Switch Inspection" . 27 (BR) – 5 (BR) : Continuity should exist.
28 (SB) – 5 (SB) : Continuity should exist.
PKIA5206E
7 (B) – Ground : Continuity should exist.
7 (B) – Ground : Continuity should exist.
PKIA5207E
When lighting switch is 2ND
position: HEAD LAMP SW 1 ON
: HEAD LAMP SW 2 ON
SKIA4194E
LT-36
HEADLAMP - XENON TYPE -
Revision: 2004 November 2004 FX35/FX45
NOTE:
After installation, perform aiming adjustment. Refer to LT- 3 4 , "
Aiming Adjustment" .
PARKING LAMP (CLEARANCE LAMP)
1. Turn lighting switch OFF.
2. Turn bulb socket counterclockwise and unlock it.
3. Remove bulb from its socket.
4. Install in the reverse order of removal.
FRONT TURN SIGNAL LAMP
1. Turn lighting switch OFF.
2. Turn bulb socket counterclockwise with suitable tool and unlock
it.
3. Remove bulb from its socket.
4. Install in the reverse order of removal.
FRONT SIDE MARKER LAMP
1. Turn lighting switch OFF.
2. Turn bulb socket counterclockwise and unlock it.
3. Remove bulb from its socket.
4. Install in the reverse order of removal.
CAUTION:
After installing bulb, be sure to install plastic cap and bulb
socket securely to insure watertightness.
Removal and InstallationAKS007MX
REMOVAL
1. Disconnect the battery negative cable.
2. Remove front bumper. Refer to EI-14, "
Removal and Installa-
tion" in “EI” section.
3. Remove headlamp mounting bolts.
4. Remove plastics bumper bracket, then pull headlamp toward
vehicle front, disconnect connector, and remove headlamp.
INSTALLATION
Note the following, and install in the reverse order of removal. Headlamp high/low beam (Xenon) : 12V - 35W (D2S)
Parking lamp (Clearance lamp) : 12V - 5W
SKIA5550E
Front turn signal lamp : 12V - 21W (amber)
SKIA6182E
Front side marker lamp : 12V - 3.8W
SKIA5552E
SKIA5553E
HEADLAMP - XENON TYPE -
LT-37
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
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)
LT-52
DAYTIME LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
4. CHECK GROUND
1. Check continuity between clearance lamp RH harness connec-
tor E23 terminal 3 (B) and ground.
2. Check continuity between clearance lamp LH harness connec-
tor E43 terminal 3 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK BULB
Check bulbs of lamp which does not illuminate.
OK or NG
OK >> GO TO 6.
NG >> Replace bulb.
6. CHECK DAYTIME RELAY CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between daytime lamp relay harness connec-
tor E15 terminal 1 (L) and combination meter harness connector
M20 terminal 10 (L/W).
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK INPUT SIGNAL
1. Connect combination meter connector.
2. Start engine running.
3. Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “ENGINE RUN” turns ON-OFF linked with operation
of engine running or stop.
4. Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “PKB SW” turns ON-OFF linked with operation of
parking brake switch.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installation of BCM" .
NG >> GO TO 8.3 (B) – Ground : Continuity should exist.
3 (B) – Ground : Continuity should exist.
SKIA5881E
1 (L) – 10 (L/W) : Continuity should exist.
PKIA5216E
Engine running : ENGINE RUN ON
Engine stop : ENGINE RUN OFF
Parking brake ON : PKR SW ON
Parking brake OFF : PKR SW OFF
SKIA5883E
TURN SIGNAL AND HAZARD WARNING LAMPS
LT-103
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2004 November 2004 FX35/FX45
4. CHECK GROUND
1. Check continuity between front combination lamp LH harness
connector E44 terminal 8 (B) and ground.
2. Check continuity between front combination lamp RH harness
connector E24 terminal 8 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK TURN SIGNAL LAMPS SHORT CIRCUIT
1. Disconnect rear combination lamp unit connector.
2. Check continuity (short circuit) between front combination lamp
LH harness connector E44 terminal 4 (G) and ground.
3. Check continuity (short circuit) between front combination lamp
RH harness connector E24 terminal 4 (PU) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK BULB
Check bulb of each turn signal lamp.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after setting the connector again. Refer to BCS-
15, "Removal and Installation of BCM" .
NG >> Replace turn signal lamp bulb.
Rear Turn Signal Lamp Does Not OperateAKS007IF
1. CHECK TAIL LAMPS AND STOP LAMPS
Make sure tail lamps and stop lamps are illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.8 (B) – Ground : Continuity should exist.
8 (B) – Ground : Continuity should exist.
PKIA5218E
4 (G) – Ground : Continuity should not exist.
4 (PU) – Ground : Continuity should not exist.
PKIA5219E