light INFINITI FX35 2008 Service Manual

LT-1
ELECTRICAL
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CONTENTS
LIGHTING SYSTEM
SERVICE INFORMATION .. ..........................4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
General Precaution for Service Operation ................4
HEADLAMP - XENON TYPE - ............................5
Component Parts and Harness Connector Loca-
tion ...................................................................... ......
5
System Description ...................................................5
CAN Communication System Description .................7
CAN Communication Unit .........................................7
Schematic .................................................................8
Wiring Diagram - H/LAMP - .......................................9
Terminal and Reference Value for BCM .................12
Terminal and Reference Value for IPDM E/R .........14
How to Proceed with Trouble Diagnosis .................14
Preliminary Check ...................................................15
CONSULT-III Functions (BCM) ...............................16
CONSULT-III Functions (IPDM E/R) .......................17
Headlamp Does Not Change To High Beam (Both
Sides) ......................................................................
18
Headlamp Does Not Change To High Beam (One
Side) ........................................................................
20
Headlamp Low Beam Does Not Illuminate (Both
Sides) .................................................................. ....
21
Headlamp Low Beam Does Not Illuminate (One
Side) .................................................................... ....
23
Headlamp RH Low Beam and High Beam Does
Not Illuminate ..........................................................
24
Headlamp LH Low Beam and High Beam Does
Not Illuminate ..........................................................
25
Headlamps Does Not Turn OFF .............................26
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................
26
Caution: ...................................................................26
Xenon Headlamp Trouble Diagnosis ......................27
Aiming Adjustment ..................................................27
Bulb Replacement ...................................................28
Removal and Installation ..................................... ....30
Disassembly and Assembly .....................................30
DAYTIME LIGHT SYSTEM ...............................32
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
32
System Description ..................................................32
CAN Communication System Description ...............33
CAN Communication Unit ........................................33
Schematic ................................................................34
Wiring Diagram - DTRL - .........................................35
Terminal and Reference Value for BCM ..................38
How to Proceed with Trouble Diagnosis ..................41
Preliminary Check ...................................................41
CONSULT-III Functions (BCM) ...............................43
Daytime Light Control Does Not Operate Properly ....44
Aiming Adjustment ...................................................46
Bulb Replacement ...................................................46
Removal and Installation .........................................46
Disassembly and Assembly .....................................46
AUTO LIGHT SYSTEM .....................................47
Component Parts and Harness Connector Loca-
tion ...........................................................................
47
System Description ..................................................47
CAN Communication System Description ...............48
CAN Communication Unit ........................................48
Major Component and Functions ............................48
Schematic ................................................................49
Wiring Diagram - AUTO/L - .....................................50
Terminal and Reference Value for BCM ..................52
Terminal and Reference Value for IPDM E/R ..........54
How to Proceed with Trouble Diagnosis ..................54
Preliminary Check ...................................................55
CONSULT-III Functions (BCM) ...............................56
CONSULT-III Functions (IPDM E/R) .......................57
Symptom Chart ........................................................58
Lighting Switch Inspection .......................................58
Optical sensor System Inspection ...........................59
Removal and Installation of Optical Sensor .............60
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LT-2
HEADLAMP AIMING CONTROL ......................61
Schematic ............................................................ ...61
Wiring Diagram - H/AIM - .......................................62
Removal and Installation ........................................64
Switch Circuit Inspection ........................................65
FRONT FOG LAMP ...........................................66
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
66
System Description .................................................66
CAN Communication System Description ..............67
CAN Communication Unit .......................................67
Wiring Diagram - F/FOG - ......................................68
Terminal and Reference Value for BCM .................69
Terminal and Reference Value for IPDM E/R .........70
How to Proceed with Trouble Diagnosis .................71
Preliminary Check ..................................................71
CONSULT-III Functions (BCM) ..............................72
CONSULT-III Functions (IPDM E/R) ......................72
Front Fog Lamps Do Not Illuminate (Both Sides) ...72
Front Fog Lamp Does Not Illuminate (One Side) ...74
Aiming Adjustment ..................................................75
Bulb Replacement ..................................................76
Removal and Installation ........................................76
TURN SIGNAL AND HAZARD WARNING
LAMPS ...............................................................
78
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
78
System Description .................................................78
CAN Communication System Description ..............80
CAN Communication Unit .......................................80
Schematic ...............................................................81
Wiring Diagram - TURN - ........................................82
Terminal and Reference Value for BCM .................84
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ............................................
86
How to Proceed with Trouble Diagnosis .................88
Preliminary Check ..................................................88
CONSULT-III Functions (BCM) ..............................89
Turn Signal Lamp Does Not Operate .....................90
Rear Turn Signal Lamp Does Not Operate ............92
Hazard Warning Lamp Does Not Operate But
Turn Signal Lamp Operates ...................................
94
Bulb Replacement (Front Turn Signal Lamp) .........95
Bulb Replacement (Rear Turn Signal Lamp) ..........95
Removal and Installation of Front Turn Signal
Lamp .......................................................................
95
Removal and Installation of Rear Turn Signal
Lamp .......................................................................
95
Removal and Installation of Rear Combination
Lamp Control Unit ...................................................
95
LIGHTING AND TURN SIGNAL SWITCH .........96
Removal and Installation ..................................... ...96
HAZARD SWITCH .............................................97
Removal and Installation ..................................... ...97
COMBINATION SWITCH ..................................98
Wiring Diagram - COMBSW - .............................. ...98
Combination Switch Reading Function ...................98
Terminal and Reference Value for BCM .................99
CONSULT-III Functions (BCM) .............................103
Combination Switch Inspection .............................104
Removal and Installation .......................................107
STOP LAMP .....................................................108
Component Parts and Harness Connector Loca-
tion ....................................................................... .
108
System Description ...............................................108
Schematic .............................................................109
Wiring Diagram - STOP/L - ...................................110
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... .
112
Stop Lamp Does Not Operate ...............................112
High-Mounted Stop Lamp .....................................114
Stop Lamp .............................................................115
Rear Combination Lamp Control Unit ...................115
BACK-UP LAMP ............................................ ..116
Wiring Diagram - BACK/L - .................................. .116
Bulb Replacement .................................................117
Removal and Installation .......................................117
PARKING, LICENSE PLATE AND TAIL
LAMPS ..............................................................
118
Component Parts and Harness Connector Loca-
tion ....................................................................... .
118
System Description ...............................................118
CAN Communication System Description ............120
CAN Communication Unit .....................................120
Schematic .............................................................121
Wiring Diagram - TAIL/L - .....................................122
Terminal and Reference Value for BCM ...............126
Terminal and Reference Value for IPDM E/R .......127
Terminal and Reference Value for Rear Combina-
tion Lamp Control Unit ......................................... .
128
How to Proceed with Trouble Diagnosis ...............128
Preliminary Check .................................................128
CONSULT-III Functions (BCM) .............................129
CONSULT-III Functions (IPDM E/R) .....................129
Parking, License Plate and Side Marker Lamps
Do Not Illuminate ..................................................
129
Tail Lamp Does Not Operate ................................133
Parking, License Plate, Side Maker and Tail
Lamps Do Not Turn OFF (After Approx. 10 Min-
utes) ......................................................................
134
License Plate Lamp ..............................................135
Front Parking Lamp ..............................................135
Tail Lamp ..............................................................135
Front Side Marker Lamp .......................................135
Rear Side Marker Lamp ........................................136
Rear Combination Lamp Control Unit ...................136
REAR COMBINATION LAMP ..........................137
Bulb Replacement ................................................ .137
Removal and Installation .......................................137
INTERIOR ROOM LAMP ..................................138
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LT-4
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612924
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
General Precaution for Service OperationINFOID:0000000001328264
 Never work with wet hands.
 Xenon headlamp includes high voltage generating part. Be sure to disconnect battery negative cable (negative terminal) or power
fuse before removing, installing, or touching the xenon headlamp
(including lamp bulb).
 Turn the lighting switch OFF before disconnecting and connecting the connector.
 When turning the xenon headlamp on and while it is illuminated, never touch the harness, bulb, and socket of the headlamp.
 When checking the headlamp on/off operation, check it on vehicle
and with the power connected to the vehicle-side connector.
 Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not touch the headl amp bulb just after the headlamp is turned off, because
it is very hot.
 Install the xenon headlamp bulb socket co rrectly. If it is installed improperly, high-voltage leak or corona dis-
charge may occur that can melt the bulb, connecto r, and housing. Do not illuminate the xenon headlamp
bulb out of the headlamp housing. Doing so can cause fire and harm your eyes.
 When the bulb has burned out, wrap it in a thick vinyl bag and discard. Do not break the bulb.
 Leaving the bulb removed from the headlamp housing for a long period of time can deteriorate the perfor- mance of the lens and reflector (dirt, clouding). Al ways prepare a new bulb and have it on hand when replac-
ing the bulb.
 When adjusting the headlamp aiming, turn the aiming adjus tment screw only in the tightening direction. (If it
is necessary to loosen the screw, first fully loosen the screw, and then turn it in the tightening direction.)
 Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
PKID0793E
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HEADLAMP - XENON TYPE -LT-5
< SERVICE INFORMATION >
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HEADLAMP - XENON TYPE -
Component Parts and Har ness Connector LocationINFOID:0000000001328265
System DescriptionINFOID:0000000001328266
Control of the headlamp system operation is dependent upon t he 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) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R contro ls 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
 to headlamp low relay, 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,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 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,
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied
 to ignition relay, located in IPDM E/R, from battery direct
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38,
 through 10A fuse [No. 14, located in fuse block (J/B)]
PKIC9683E
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LT-6
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
 to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
 to BCM terminals 49 and 52
 through grounds M35, M45 and M85,
 to IPDM E/R terminals 38 and 60
 through grounds E21, E50 and E51,
 to combination meter terminals 5, 6 and 15
 through grounds M35, M45 and M85.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in the 2ND position, the BCM receives input signal requesting the headlamps to illumi-
nate. This input signal is communicated to the IP DM E/R through the CAN communication lines. The CPU
located in the IPDM E/R controls the headlamp lo w relay coil, which when energized, directs power
 through 15A fuse (No. 76, located in IPDM E/R)
 through IPDM E/R terminal 20
 to front combination lamp RH terminal 6,
 through 15A fuse (No. 86, located in IPDM E/R)
 through IPDM E/R terminal 30
 to front combination lamp LH terminal 6.
Ground is supplied
 to front combination lamp RH and LH terminals 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 the 2ND position and placed in the HIGH or PASS position, the BCM receives input
signal requesting the headlamp high beams to illuminate. Th is input signal is communicated to the IPDM E/R
through the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp high relay
coil and low relay coil, which when energized, directs power
 through 15A fuse (No. 76, located in IPDM E/R)
 through IPDM E/R terminal 20
 to front combination lamp RH terminal 6,
 through 15A fuse (No. 86, located in IPDM E/R)
 through IPDM E/R terminal 30
 to front combination lamp LH terminal 6,
 through 10A fuse (No. 72, located in IPDM E/R)
 through IPDM E/R terminal 27
 to front combination lamp RH terminal 5,
 through 10A fuse (No. 74, located in IPDM E/R)
 through IPDM E/R terminal 28
 to front combination lamp LH terminal 5.
Ground is supplied
 to front combination lamp RH and LH terminals 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 hi gh beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
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 illumi nated for 5 minutes, then the headlamps are turned OFF.
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HEADLAMP - XENON TYPE -LT-7
< SERVICE INFORMATION >
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Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT-47, "System Description".
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-163.
XENON HEADLAMP
Xenon type lamps are used for to the low 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 strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.
 The light produced by the headlamps is white color si milar to sunlight that is easy to the eyes.
 Light output is nearly double that of halogen headl amps, affording increased area of illumination.
 Counter-reflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.
 Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionINFOID:0000000001328267
CAN (Controller Area Network) is a serial communication li ne 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 UnitINFOID:0000000001328268
Refer to LAN-43, "CAN System Specification Chart".
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LT-12
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
Terminal and Reference Value for BCM
INFOID:0000000001328271
CAUTION:
 Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
 Turn wiper intermittent dial posi tion to 4 except when checking wavef orm or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-III. Refer to LT-
103, "CONSULT-III Functions (BCM)".
TKWM4292E
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HEADLAMP - XENON TYPE -LT-13
< SERVICE INFORMATION >
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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
2GY Combination
switch input 5 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.0 V
11 L G Ignition switch
(ACC) ACC — Battery voltage
34 W/B Combination
switch output 3 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch HI beam (Operates only HI beam
switch)
Approx. 1.2 V
PKIB4959J
PKIB4953J
PKIB4959J
PKIB4960J
PKIB4958J
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LT-14
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
Terminal and Reference Value for IPDM E/R
INFOID:0000000001328272
How to Proceed with Trouble DiagnosisINFOID:0000000001328273
1. Confirm the symptom or customer complaint.
35 W/G Combination
switch output 2 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING (Operates only PASSING
switch)
Approx. 1.2 V
38 W/L Ignition switch
(ON)
ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply
OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
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
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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LT-16
< SERVICE INFORMATION >
HEADLAMP - XENON TYPE -
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-III Functions (BCM)INFOID:0000000001328275
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
Display Item List
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.
Item Description CONSULT-III Factory setting
BATTERY SAVER SET Exterior lamp battery saver control mode can be changed in this mode.
Selects exterior lamp battery saver control mode between two ON/OFF. ON
×
OFF —
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.
FR FOG SW “ON/OFF” Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch judged
from lighting switch signal.
RR FOG SW
NOTE 3“OFF” —
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