Infiniti Q45. Manual - part 666

 

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Infiniti Q45. Manual - part 666

 

 

LT-1

LIGHTING SYSTEM

K  ELECTRICAL

CONTENTS

C

D

E

F

G

H

I

J

L

M

SECTION 

LT

A

B

LT

LIGHTING SYSTEM

PRECAUTIONS .......................................................... 4

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
General Precautions for Service Operations ............ 4

HEADLAMP (FOR USA)  ............................................ 5

Component Parts and Harness Connector Location 

..... 5

System Description  .................................................. 5

OUTLINE ............................................................... 5
BATTERY SAVER CONTROL  .............................. 6
AUTO LIGHT OPERATION ................................... 7
VEHICLE SECURITY SYSTEM ............................ 7
XENON HEADLAMP ............................................. 7

Schematic ................................................................ 8
Wiring Diagram — H/LAMP —  ................................. 9
Terminals and Reference Values for Headlamp Bat-
tery Saver Control Unit ........................................... 15
Terminals and Reference Values for BCM  ............. 16
Work Flow  .............................................................. 17
Preliminary Check  .................................................. 17

SETTING CHANGE FUNCTION FOR AUTO 
LIGHT SYSTEM .................................................. 17
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 18

CONSULT-II Function (IVMS)  ................................ 19

CONSULT-II BASIC OPERATION PROCEDURE 

... 19

WORK SUPPORT ............................................... 20
DATA MONITOR  ................................................. 20
ACTIVE TEST  ..................................................... 21

On Board Diagnosis  ............................................... 21

DIAGNOSIS ITEM ............................................... 21
SWITCH MONITOR  ............................................ 21

Symptom Chart  ...................................................... 22

HEADLAMP SYSTEM ......................................... 22
AUTO LIGHT SYSTEM  ....................................... 24

Lighting Switch (AUTO) System Check .................. 25
Optical Sensor System Check  ............................... 26
Headlamp Relay System Check  ............................ 27
Tail Lamp Relay System Check  ............................. 28

Switch Circuit Inspection  ........................................ 28
General Information for Xenon Headlamp Trouble 
Diagnosis ................................................................ 29
Caution: .................................................................. 29
Xenon Headlamp Trouble Diagnosis  ...................... 29
Aiming Adjustment .................................................. 30

LOW BEAM AND HIGH BEAM  ........................... 30

Bulb Replacement  .................................................. 31

HEADLAMP (OUTER SIDE), FOR LOW BEAM ... 31
HEADLAMP (INNER SIDE), FOR HIGH BEAM ... 31
PARKING LAMP .................................................. 32
FRONT TURN SIGNAL LAMP  ............................ 32
FRONT SIDE MARKER LAMP  ........................... 32

Removal and Installation  ........................................ 33

REMOVAL ........................................................... 33
INSTALLATION ................................................... 33

Disassembly and Assembly .................................... 34

DISASSEMBLY ................................................... 34
ASSEMBLY ......................................................... 35

HEADLAMP (FOR CANADA) - DAYTIME LIGHT 
SYSTEM - .................................................................. 36

Component Parts and Harness Connector Location 

... 36

System Description ................................................. 36

HEADLAMP OPERATION ................................... 37
BATTERY SAVER CONTROL ............................. 38
AUTO LIGHT OPERATION  ................................. 38
DAYTIME LIGHT OPERATION  ........................... 38
OPERATION ........................................................ 39

Schematic ............................................................... 40
Wiring Diagram — DTRL —  ................................... 41
Terminals and Reference Value for Daytime Light 
Control Unit ............................................................. 50
Terminals and Reference Value for BCM  ............... 51
Terminals and Reference Value for Battery saver 
Control Unit ............................................................. 51
Symptom Chart ....................................................... 51
Aiming Adjustment .................................................. 53
Bulb Replacement  .................................................. 53
Removal and Installation  ........................................ 53
Disassembly and Assembly .................................... 53

LT-2

HEADLAMP AIMING CONTROL (AUTO)  ................ 54

Component Parts and Harness Connector Location ... 54
System Description ................................................. 54

OUTLINE ............................................................. 54
HEADLAMP AIMING CONTROL OPERATION ... 55

Schematic ............................................................... 56
Wiring Diagram —LT-H/AIM— ................................ 57
Terminals and Reference Values for Headlamp Aim-
ing Sensor  .............................................................. 61
How to Proceed with Trouble Diagnosis  ................. 61
Preliminary Check  .................................................. 62

CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 62

CONSULT-II Function (HEAD LAMP LEVELIZER) ... 63

CONSULT-II BASIC OPERATION PROCEDURE 

... 63

WORK SUPPORT  ............................................... 64
ACTIVE TEST  ..................................................... 64
SELF-DIAG RESULTS  ........................................ 65

Check Aiming Control System  ................................ 67
Symptom Chart ....................................................... 68
Headlamp Aiming Motor Does Not Operate (Both 
Sides) ..................................................................... 69
Headlamp Aiming Motor Does Not Operate (One 
Side) ....................................................................... 71
DTC B2081 [INITIAL NOT DONE] .......................... 72
DTC B2082 [SENSOR OUT OF RANGE], DTC 
B2083 [SEN SIG NOT PLAUSIBLE]  ...................... 72
DTC B2084 [VOLTAGE UNDER LIMIT]  ................. 72
DTC B2085 [LOW BEAM SIG OPEN LINE]  ........... 73
DTC B2086 [FRQ. OVER LIMIT]  ............................ 73
DTC B2087 [SHORT TO GROUND]  ...................... 74
DTC B2088 [SHORT TO BATTERY]  ...................... 75
Removal and Installation  ........................................ 76

REMOVAL ........................................................... 76
INSTALLATION .................................................... 76

FRONT FOG LAMP  .................................................. 77

Component Parts and Harness Connector Location ... 77
System Description ................................................. 77

OUTLINE ............................................................. 77
BATTERY SAVER CONTROL  ............................. 78

Schematic ............................................................... 79
Wiring Diagram — F/FOG — .................................. 80
Terminals and Reference Values for Headlamp Bat-
tery Saver Control Unit  ........................................... 83
Terminals and Reference Values for BCM .............. 83
Work Flow ............................................................... 84
Preliminary Check  .................................................. 84

CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 84

Front Fog Lamps Do Not Illuminate (Both Sides) ... 85
Front Fog Lamp Does Not Illuminate (One Side) ... 87
Aiming Adjustment .................................................. 87
Bulb Replacement  .................................................. 89
Removal and Installation  ........................................ 89

REMOVAL ........................................................... 89
INSTALLATION .................................................... 89

TURN SIGNAL AND HAZARD WARNING LAMPS ... 90

Component Parts and Harness Connector Location ... 90

System Description  .................................................90

OUTLINE .............................................................90
MULTI-REMOTE CONTROL SYSTEM OPERA-
TION ....................................................................92
LOW TIRE PRESSURE WARNING CONTROL 
SYSTEM ..............................................................92

Schematic ...............................................................93
Wiring Diagram — TURN —  ...................................94
Symptom Chart  .......................................................98
Electrical Components Inspection ...........................99

COMBINATION FLASHER UNIT CHECK  ...........99

Bulb Replacement ...................................................99

FRONT TURN SIGNAL LAMP .............................99
REAR TURN SIGNAL LAMP  ...............................99

Removal and Installation .........................................99

FRONT TURN SIGNAL LAMP .............................99
SIDE TURN SIGNAL LAMP .................................99
REAR TURN SIGNAL LAMP  ...............................99

LIGHTING AND TURN SIGNAL SWITCH  ..............100

Removal and Installation .......................................100
Switch Circuit Inspection .......................................100

HAZARD SWITCH ...................................................101

Removal and Installation .......................................101

STOP LAMP  ............................................................102

Wiring Diagram — STOP/L —  ..............................102
Bulb Replacement .................................................103

STOP LAMP  ......................................................103
HIGH-MOUNTED STOP LAMP  .........................103

Removal and Installation .......................................103

STOP LAMP  ......................................................103
HIGH-MOUNTED STOP LAMP  .........................103

BACK-UP LAMP  .....................................................104

Wiring Diagram — BACK/L —  ..............................104
Bulb Replacement .................................................105
Removal and Installation .......................................105

PARKING, LICENSE PLATE AND TAIL LAMPS  ....106

Component Parts and Harness Connector Location .106
System Description  ...............................................106

OUTLINE ...........................................................106
LIGHTING OPERATION BY LIGHTING SWITCH .106
BATTERY SAVER CONTROL  ...........................106

Schematic .............................................................108
Wiring Diagram — TAIL/L — .................................109
Trouble Diagnoses  ................................................ 114
Tail Lamp Relay Inspection  ................................... 114
Bulb Replacement ................................................. 115

LICENSE PLATE LAMP ..................................... 115
FRONT COMBINATION LAMP .......................... 115
REAR COMBINATION LAMP  ............................ 115
TAIL LAMP ......................................................... 115

Removal and Installation ....................................... 115

LICENSE PLATE LAMP ..................................... 115
FRONT COMBINATION LAMP .......................... 115
REAR COMBINATION LAMP  ............................ 116
TAIL LAMP (TRUNK LID)  .................................. 116

INTERIOR ROOM LAMP  ........................................ 117

System Description  ............................................... 117

OUTLINE ........................................................... 117
TIMER FUNCTION  ............................................ 117

LT-3

C

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LT

LAMP OUTPUT CONTROL FUNCTION  ...........118
AUTO OFF FUNCTION  .....................................118
LIGHTS ON/OFF MODES  .................................119

Major Components and the Functions  ................. 121
Schematic ............................................................ 122
Wiring Diagram — INT/L —  ................................. 123
Terminals and Reference Values for BCM  ........... 129
Terminals and Reference Values for Driver Door 
Control Unit (LCU01) ............................................ 130
Work Flow  ............................................................ 130
Preliminary Check  ................................................ 130

SETTING CHANGE FUNCTION ....................... 130
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. 131

CONSULT-II Function (IVMS)  .............................. 133

CONSULT-II BASIC OPERATION PROCEDURE 

. 133

WORK SUPPORT ............................................. 134
DATA MONITOR  ............................................... 134
ACTIVE TEST  ................................................... 135

On Board Diagnosis  ............................................. 135

DIAGNOSIS ITEM ............................................. 135
SWITCH MONITOR  .......................................... 136

Symptom Chart  .................................................... 137
Interior Lamp Illumination Switch System Check . 137
Personal Lamp Switch System Check  ................. 138
Door Switch System Check .................................. 139
Key Switch and Key Lock Solenoid System Check 

. 141

Bulb Replacement ................................................ 143

MAP LAMP (FRONT PERSONAL LIGHT) AND 
CONSOLE LAMP (CONSOLE LIGHT)  ............. 143
PERSONAL LAMP (REAR PERSONAL LIGHT) 

. 143

Removal and Installation  ...................................... 143

FRONT INTERIOR LAMP ................................. 143
REAR INTERIOR LAMP  ................................... 143
IGNITION KEY HOLE ILLUMINATION  ............. 144

STEP LAMP ............................................................ 145

Component Parts and Harness Connector Location 

. 145

System Description  .............................................. 146

POWER SUPPLY AND GROUND  .................... 146
OPERATING PROCEDURE  ............................. 146

Schematic ............................................................ 147
Wiring Diagram — STEP/L —  .............................. 148
Terminals and Reference Values for BCM  ........... 154
Terminals and Reference Values for Driver Door 
Control Unit (LCU01) ............................................ 154
Terminals and Reference Values for Passenger 

Door Control Unit .................................................. 155
Terminals and Reference Values for Rear LH, RH 
Door Control Unit .................................................. 155
Work Flow ............................................................. 155
Preliminary Check  ................................................ 156

CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................. 156

CONSULT-II Function (IVMS) ............................... 158

CONSULT-II BASIC OPERATION PROCEDURE 

. 158

DATA MONITOR  ............................................... 159
ACTIVE TEST  ................................................... 159

On Board Diagnosis  ............................................. 160

DIAGNOSIS ITEM  ............................................. 160
SWITCH MONITOR  .......................................... 160

Symptom Chart ..................................................... 161

DIAGNOSTIC PROCEDURE  ............................ 161

Bulb Replacement  ................................................ 163
Removal and Installation  ...................................... 163

DOOR MIRROR LAMP  ........................................... 164

System Description ............................................... 164
Wiring Diagram — MIRR/L —  .............................. 165
Bulb Replacement  ................................................ 166

DOOR MIRROR LAMP  ..................................... 166

ILLUMINATION ....................................................... 167

System Description ............................................... 167

LIGHTING OPERATION BY LIGHTING SWITCH .167
BATTERY SAVER CONTROL ........................... 167

Schematic ............................................................. 168
Wiring Diagram — ILL — ...................................... 170
Removal and Installation  ...................................... 181

ILLUMINATION CONTROL SWITCH ................ 181
POWER WINDOW MAIN SWITCH ILLUMINA-
TION .................................................................. 181
CONSOLE BOX LAMP  ..................................... 181
GLOVE BOX LAMP ........................................... 181
FRONT CIGARETTE LIGHTER ILLUMINATION .182
REAR ASHTRAY ILLUMINATION ..................... 182

VANITY MIRROR AND TRUNK ROOM LAMPS  .... 183

Wiring Diagram — INT/L — .................................. 183
Bulb Replacement  ................................................ 184

VANITY MIRROR LAMP  ................................... 184
TRUNK ROOM LAMP  ....................................... 184

BULB SPECIFICATIONS ........................................ 185

Headlamp ............................................................. 185
Exterior Lamp  ....................................................... 185
Interior Lamp/Illumination  ..................................... 185

LT-4

PRECAUTIONS

PRECAUTIONS 

PFP:00011

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

NKS00171

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity 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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

General Precautions for Service Operations

NKS00172

●

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 connect-
ing 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 vehi-
cle 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 headlamp bulb just after the headlamp is turned off, because it is very hot.

●

Install the xenon headlamp bulb socket correctly. If it is installed
improperly, high-voltage leak or corona discharge may occur
that can melt the bulb, connector, 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 long
period of time can deteriorate performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb  and have it
on hand when replacing the bulb.

●

When adjusting the headlamp aiming, turn the aiming adjust-
ment screw only in the tightening direction. (If it is necessary to turn the screw in loosening direction, first
fully loosen the screw, and then turn it in tightening direction.)

●

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.

PKIA0183E

EL-3422D

 

 

 

 

 

 

 

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