Infiniti M45 (Y34). Manual - part 623

 

  Index      Infiniti     Infiniti M45 (Y34) - service repair manual 2004 year

 

Search            copyright infringement  

 

 

 

 

 

 

 



 

 

Content   ..  621  622  623  624   ..

 

 

Infiniti M45 (Y34). Manual - part 623

 

 

CAN SYSTEM (TYPE 2)

LAN-59

[CAN]

C

D

E

F

G

H

I

J

L

M

A

B

LAN

13. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between data link connector M31 terminals 6 (L), 3
(R) and ground.

OK or NG

OK

>> GO TO 14.

NG

>> Check the following harnesses. If any harness is dam-

aged, repair the harness.

Harness between data link connector and harness
connector M141

Harness between data link connector and harness connector M135

Harness between data link connector and steering angle sensor

Harness between data link connector and combination meter

14. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect TCM connector.

2.

Check continuity between TCM harness connector F103 termi-
nals 6 (L) and 7 (R).

OK or NG

OK

>> GO TO 15.

NG

>> Repair harness between TCM and harness connector

F105.

15. 

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between TCM harness connector F103 terminals 6
(L), 7 (R) and ground.

OK or NG

OK

>> GO TO 16.

NG

>> Repair harness between TCM and harness connector

F105.

16. 

ECM/COMBINATION METER INTERNAL CIRCUIT INSPECTION

Check components inspection. Refer to 

LAN-60, "ECM/COMBINATION METER INTERNAL CIRCUIT

INSPECTION"

 .

OK or NG

OK

>> Connect all the connectors and diagnose again. Refer to 

LAN-43, "Work Flow"

 .

NG

>> Replace ECM and/or combination meter.

6 (L) – ground

: Continuity should not exist.

3 (R) – ground

: Continuity should not exist.

PKIA0286E

6 (L) – 7 (R) 

: Continuity should not exist.

PKIA0283E

6 (L) – ground

: Continuity should not exist.

7 (R) – ground

: Continuity should not exist.

PKIA0284E

LAN-60

[CAN]

CAN SYSTEM (TYPE 2)

Component Inspection

AKS003YK

ECM/COMBINATION METER INTERNAL CIRCUIT INSPECTION

Remove ECM and combination meter from vehicle.

Check resistance between ECM terminals 174 and 171.

Check resistance between combination meter terminals 34 and
35.

Unit

Terminal

Resistance value (

)

(Approx.)

ECM

174 – 171

108 - 132

Combination meter

34 – 35

PKIA0830E

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
Wiring Diagrams and Trouble Diagnosis .................. 5

HEADLAMP (FOR USA)  ............................................ 6

Component Parts and Harness Connector Location 

..... 6

System Description  .................................................. 6

OUTLINE ............................................................... 6
BATTERY SAVER CONTROL  .............................. 8
AUTO LIGHT OPERATION ................................... 8
VEHICLE SECURITY SYSTEM ............................ 8
XENON HEADLAMP ............................................. 9

Schematic .............................................................. 10
Wiring Diagram — H/LAMP —  ................................11
Terminals and Reference Value for Headlamp Bat-
tery Saver Control Unit ........................................... 17
Terminals and Reference Value for BCM  ............... 18
Work Flow  .............................................................. 18
Preliminary Check  .................................................. 19

SETTING CHANGE FUNCTION FOR AUTO 
LIGHT SYSTEM .................................................. 19
INSPECTION FOR POWER SUPPLY AND 
GROUND CIRCUIT ............................................. 19

CONSULT-II Function for Auto Light System  ......... 20

CONSULT-II BASIC OPERATION PROCEDURE 

... 21

WORK SUPPORT ............................................... 21
DATA MONITOR  ................................................. 22
ACTIVE TEST  ..................................................... 22

On Board Diagnosis  ............................................... 22

DIAGNOSIS ITEM ............................................... 22
SWITCH MONITOR  ............................................ 23

Symptom Chart 1  ................................................... 24

HEADLAMP SYSTEM ......................................... 24

Symptom Chart 2  ................................................... 24

AUTO LIGHT SYSTEM  ....................................... 24

Power Supply and Ground Circuit Inspection  ........ 25
Headlamp Relay-1 Circuit Inspection  ..................... 26

Headlamp Relay-2 Circuit Inspection  ..................... 27
Headlamp (Low) Circuit Inspection ......................... 28
Headlamp (High) Circuit Inspection ........................ 29
High Beam Indicator Circuit Inspection  .................. 31
Lighting Switch Circuit Inspection ........................... 31
Front Door Switch Circuit Inspection  ...................... 33
Headlamp Battery Saver Control Unit Circuit 
Inspection ............................................................... 34
Lighting Switch (AUTO) System Inspection ............ 35
Optical Sensor System Inspection .......................... 36
Headlamp Relay System Inspection ....................... 38
Tail Lamp Relay System Inspection ........................ 38
Aiming Adjustment .................................................. 39

LOW BEAM AND HIGH BEAM  ........................... 40

Bulb Replacement  .................................................. 41

HEADLAMP (OUTER SIDE), FOR LOW BEAM ... 41
HEADLAMP (INNER SIDE), FOR HIGH BEAM ... 41
FRONT TURN SIGNAL AND PARKING (CLEAR-
ANCE) LAMP  ...................................................... 41

Removal and Installation  ........................................ 42

REMOVAL ........................................................... 42
INSTALLATION ................................................... 42

Disassembly and Assembly .................................... 43

DISASSEMBLY ................................................... 43
ASSEMBLY ......................................................... 43

HEADLAMP (FOR CANADA) - DAYTIME LIGHT 
SYSTEM - .................................................................. 44

Component Parts and Harness Connector Location 

... 44

System Description ................................................. 44

HEADLAMP OPERATION ................................... 45
BATTERY SAVER CONTROL ............................. 46
AUTO LIGHT OPERATION  ................................. 46
DAYTIME LIGHT OPERATION  ........................... 46
OPERATION ........................................................ 47

Schematic ............................................................... 48
Wiring Diagram — DTRL —  ................................... 49
Terminals and Reference Value for Headlamp Bat-
tery Saver Control Unit  ........................................... 58
Terminals and Reference Value for BCM  ............... 59
Terminals and Reference Value for Daytime Light 

LT-2

Control Unit ............................................................. 59
Symptom Chart ....................................................... 61
Power Supply and Ground Circuit Inspection  ......... 61
Headlamp Relay-1 Circuit Inspection  ..................... 64
Headlamp Relay-2 Circuit Inspection  ..................... 64
Headlamp (Low) Circuit Inspection ......................... 65
Headlamp LH (High) Circuit Inspection  .................. 66
Headlamp RH (High) Circuit Inspection .................. 68
High Beam Indicator Circuit Inspection  .................. 69
Lighting Switch Circuit Inspection  ........................... 70
Front Door Switch Circuit Inspection  ...................... 71
Headlamp Battery Saver Control Unit Circuit 
Inspection ............................................................... 73
Daytime Light Control Unit Circuit Inspection  ......... 73
Aiming Adjustment .................................................. 74
Bulb Replacement  .................................................. 74
Removal and Installation  ........................................ 74
Disassembly and Assembly .................................... 74

HEADLAMP AIMING CONTROL .............................. 75

Wiring Diagram — H/AIM — ................................... 75
Removal and Installation  ........................................ 77
Switch Circuit Inspection  ........................................ 77

FRONT FOG LAMP  .................................................. 78

Component Parts and Harness Connector Location ... 78
System Description ................................................. 78

OUTLINE ............................................................. 78
BATTERY SAVER CONTROL  ............................. 79

Schematic ............................................................... 80
Wiring Diagram — F/FOG — .................................. 81
Terminals and Reference Value for Headlamp Bat-
tery Saver Control Unit  ........................................... 84
Terminals and Reference Value for BCM ................ 84
Front Fog Lamps Do Not Illuminate (Both Sides) ... 85
Front Fog Lamp Does Not Illuminate (One Side) ... 86
Aiming Adjustment .................................................. 87
Bulb Replacement, Removal and Installation  ......... 88

TURN SIGNAL AND HAZARD WARNING LAMPS ... 89

Component Parts and Harness Connector Location ... 89
System Description ................................................. 89

TURN SIGNAL LAMP OPERATION .................... 89
HAZARD LAMP OPERATION  ............................. 90
MULTI-REMOTE CONTROL SYSTEM OPERA-
TION .................................................................... 90
LOW TIRE PRESSURE WARNING CONTROL 
SYSTEM .............................................................. 91

Schematic ............................................................... 92
Wiring Diagram — TURN — ................................... 93
Turn Signal Lamps Do Not Operate  ....................... 97
Hazard Warning Lamps Do Not Operate  ................ 97
Front Turn Signal Lamp LH or RH Does Not Operate ... 99
Rear Turn Signal Lamp LH or RH Does Not Operate ... 99
LH and RH Turn Indicators Do Not Operate  ......... 100
LH or RH Turn Indicator Does Not Operate .......... 100
Electrical Components Inspection  ........................ 101

COMBINATION FLASHER UNIT CHECK  ......... 101

Bulb Replacement  ................................................ 101

FRONT TURN SIGNAL LAMP  .......................... 101

REAR TURN SIGNAL LAMP  .............................101

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

FRONT TURN SIGNAL LAMP ...........................101
SIDE TURN SIGNAL LAMP ...............................101
REAR TURN SIGNAL LAMP  .............................101

LIGHTING AND TURN SIGNAL SWITCH  ..............102

Removal and Installation .......................................102
Switch Circuit Inspection .......................................102

HAZARD SWITCH ...................................................103

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

STOP LAMP  ............................................................104

Wiring Diagram — STOP/L —  ..............................104
Bulb Replacement .................................................105

STOP LAMP  ......................................................105
HIGH-MOUNTED STOP LAMP  .........................105

Removal and Installation .......................................105

STOP LAMP  ......................................................105
HIGH-MOUNTED STOP LAMP  .........................105

BACK-UP LAMP  .....................................................106

Wiring Diagram — BACK/L —  ..............................106
Bulb Replacement .................................................107
Removal and Installation .......................................107

PARKING, LICENSE PLATE AND TAIL LAMPS  ....108

Component Parts and Harness Connector Location .108
System Description  ...............................................108

LIGHTING OPERATION BY LIGHTING SWITCH .108
BATTERY SAVER CONTROL  ...........................108

Schematic ............................................................. 110
Wiring Diagram — TAIL/L — ................................. 111
Terminals and Reference Value for Headlamp Bat-
tery Saver Control Unit .......................................... 116
Terminals and Reference Value for BCM  .............. 116
CONSULT-II Function  ........................................... 116
No Lamps Operate (Including Headlamps) ........... 117
No Parking, Side Marker, License and Tail Lamps 
Operate Properly ................................................... 118
Battery Saver Control Does Not Operate Properly .121
Bulb Replacement .................................................125

LICENSE PLATE LAMP .....................................125
FRONT PARKING LAMP  ...................................125
FRONT SIDE MARKER LAMP  ..........................125
REAR COMBINATION LAMP  ............................125
REAR SIDE MARKER LAMP  ............................125

Removal and Installation .......................................126

LICENSE PLATE LAMP .....................................126
FRONT PARKING LAMP  ...................................126
FRONT SIDE MARKER LAMP  ..........................126
REAR COMBINATION LAMP  ............................127
REAR SIDE MARKER LAMP  ............................127

INTERIOR ROOM LAMP  ........................................128

System Description  ...............................................128

OUTLINE ...........................................................128
TIMER FUNCTION  ............................................128
LAMP OUTPUT CONTROL FUNCTION  ...........129
AUTO OFF FUNCTION  .....................................129
LIGHTS ON/OFF MODES  .................................129

Major Components and Their Functions  ...............131
Schematic .............................................................132
Wiring Diagram — ROOM/L —  .............................133

 

 

 

 

 

 

 

Content   ..  621  622  623  624   ..