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K ELECTRICAL

B
SECTION
LIGHTING SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 4 . One Xenon Headlamp Flickers .............................. 26 . F
Precautions for Supplemental Restraint System Aiming Adjustment ................................................. 27.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- LOW BEAM AND HIGH BEAM .......................... 27 .
SIONER" ................................................................. 4
. Bulb Replacement ................................................. 28 . G
General precautions for service operations ............ 4 . HEADLAMP (OUTER SIDE), FOR LOW BEAM
Wiring Diagrams and Trouble Diagnosis ................. 4 . (XENON) ............................................................ 28
.
HEADLAMP (FOR USA) ........................................... 6 . HEADLAMP (OUTER SIDE), FOR LOW BEAM
H
Component Parts and Harness Connector Location 6 ..... (HALOGEN) ....................................................... 28.
System Description ................................................. 6 . HEADLAMP (INNER SIDE), FOR HIGH BEAM... 28
OUTLINE .............................................................. 6
. FRONT TURN SIGNAL LAMP ........................... 29 .
BATTERY SAVER CONTROL ............................. 7 . Removal and Installation ....................................... 29 . I
AUTO LIGHT OPERATION .................................. 7 . REMOVAL .......................................................... 29
.
VEHICLE SECURITY SYSTEM ........................... 7 . INSTALLATION .................................................. 29 .
XENON HEADLAMP (IF EQUIPPED) ................. 7 . Disassembly and Assembly ................................... 30 . J
CAN Communication System Description ............... 8 . DISASSEMBLY .................................................. 30 .
Wiring Diagram -- H/LAMP -- ................................ 9 . ASSEMBLY ........................................................ 31.
HALOGEN ............................................................ 9
. HEADLAMP (FOR CANADA) - DAYTIME LIGHT LT
XENON ...............................................................11
. SYSTEM - ................................................................. 32
.
Terminals and Reference Value for BCM .............. 13 . Component Parts and Harness Connector Location 32 ...
Terminals and Reference Values for IPDM E/R .... 13 . System Description ................................................ 32.
How to Proceed With Trouble Diagnosis ............... 13 . HEADLAMP OPERATION .................................. 33 . L
Preliminary Check ................................................. 14 . BATTERY SAVER CONTROL ............................ 34 .
CHECK POWER SUPPLY AND GROUND CIR- AUTO LIGHT OPERATION ................................ 34 .
CUIT ................................................................... 14
. DAYTIME LIGHT OPERATION .......................... 34 . M
CONSULT-II Function (BCM) ................................ 14 . XENON HEADLAMP (IF EQUIPPED) ................ 34 .
CONSULT-II BASIC OPERATION ...................... 14 . OPERATION ....................................................... 34.
DATA MONITOR ................................................ 15 . CAN Communication System Description ............. 35 .
ACTIVE TEST .................................................... 16 . Schematic .............................................................. 36
.
CONSULT-II Function (IPDM E/R) ........................ 17 . HALOGEN .......................................................... 36
.
CONSULT-II OPERATION ................................. 17 . XENON ............................................................... 37
.
DATA MONITOR ................................................ 18 . Wiring Diagram -- DTRL -- .................................. 38 .
ACTIVE TEST .................................................... 18 . HALOGEN .......................................................... 38
.
Headlamp HI Does Not Illuminate (Both Sides) .... 19 . XENON ............................................................... 41
.
Headlamp HI Does Not Illuminate (One Side) ...... 21 . Terminals and Reference Value for Daytime Light
High-Beam Indicator Lamp Does Not Illuminate ... 22 Control Unit ............................................................ 44
.
Headlamp LO Does Not Illuminate (Both Sides) ... 22 Aiming Adjustment ................................................. 45.
Headlamp LO Does Not Illuminate (One Side) ..... 24 . Bulb Replacement ................................................. 45 .
Headlamps Do Not Turn OFF ............................... 25 . Removal and Installation ....................................... 45 .
One Xenon Headlamp Does Not Illuminate At Full Disassembly and Assembly ................................... 45 .
Brightness ............................................................. 26
. AUTO LIGHT SYSTEM ............................................ 46 .

Revision: May 2004 LT-1 2004 Altima
Component Parts and Harness Connector Location 46 ... Wiring Diagram -- TURN -- ..................................80 .
System Description ................................................ 46 . Terminals and Reference Value for BCM ...............83 .
OUTLINE ............................................................ 46
. CONSULT-II Function (BCM) .................................84 .
BATTERY SAVER CONTROL ............................ 47 . CONSULT-II BASIC OPERATION ......................84 .
SHUT OFF DELAY ............................................. 47 . DATA MONITOR ................................................85 .
CAN Communication System Description ............. 47 . ACTIVE TEST .....................................................85 .
Major Components and Functions ......................... 47 . Turn Signal Lamp Does Not Operate .....................86 .
Schematic .............................................................. 48
. Hazard Lamp Does Not Operate ...........................87 .
HALOGEN (WITH DAYTIME LIGHT SYSTEM)... 48 Turn Signal Indicator Lamp Does Not Operate ......88 .
XENON (WITH DAYTIME LIGHT SYSTEM) ...... 49 . Bulb Replacement ..................................................88 .
Wiring Diagram -- AUTO/L -- ............................... 50 . FRONT TURN SIGNAL LAMP ............................88 .
HALOGEN (USA) ............................................... 50 . REAR TURN SIGNAL LAMP ..............................89 .
XENON (USA) .................................................... 52 . Removal and Installation ........................................89 .
HALOGEN (CANADA) ........................................ 54 . FRONT TURN SIGNAL LAMP ............................89 .
XENON (CANADA) ............................................ 57 . REAR TURN SIGNAL LAMP ..............................89 .
Terminals and Reference Value for BCM ............... 60 . LIGHTING AND TURN SIGNAL SWITCH ...............90 .
Terminals and Reference Values for IPDM E/R ..... 60 . Removal and Installation ........................................90 .
How to Proceed With Trouble Diagnosis ............... 60 . Switch Circuit Inspection ........................................90 .
Preliminary Check ................................................. 60 . HAZARD SWITCH ....................................................91 .
SETTING CHANGE FUNCTIONS ...................... 60 . Removal and Installation ........................................91 .
CHECK POWER SUPPLY AND GROUND CIR- COMBINATION SWITCH .........................................92 .
CUIT ................................................................... 61
. Combination Switch Reading Function ..................92 .
CONSULT-II Function (BCM) ................................. 62 . CONSULT-II Function (BCM) .................................92 .
CONSULT-II BASIC OPERATION ...................... 62 . CONSULT-II BASIC OPERATION ......................92 .
WORK SUPPORT .............................................. 63 . DATA MONITOR .................................................93 .
DATA MONITOR ................................................. 63 . Removal and Installation ........................................94 .
ACTIVE TEST .................................................... 64 . Switch Circuit Inspection ........................................94 .
CONSULT-II Function (IPDM E/R) ......................... 65 . STOP LAMP .............................................................95 .
CONSULT-II OPERATION .................................. 65 . Wiring Diagram -- STOP/L -- ...............................95 .
DATA MONITOR ................................................. 66 . Bulb Replacement for High-mounted Stop Lamp ...97
ACTIVE TEST .................................................... 66 . WITH REAR SPOILER .......................................97 .
Trouble Diagnosis Chart by Symptom ................... 67 . WITHOUT REAR SPOILER ................................97 .
Lighting Switch Inspection ..................................... 67 . Bulb Replacement for Rear Combination Lamp ....97 .
Auto Light Sensor System Inspection .................... 68 . Removal and Installation for High-mounted Stop
FRONT FOG LAMP ................................................. 70 . Lamp ......................................................................97
.
System Description ................................................ 70 . WITH REAR SPOILER .......................................97 .
OUTLINE ............................................................ 70
. WITHOUT SPOILER ...........................................97 .
BATTERY SAVER CONTROL ............................ 70 . Removal and Installation for Rear Combination
CAN Communication System Description ............. 70 . Lamp ......................................................................97
.
Wiring Diagram -- F/FOG -- ................................. 71 . STEP LAMP .............................................................98 .
Terminals and Reference Value for BCM ............... 72 . System Description ................................................98 .
Terminals and Reference Values for IPDM E/R ..... 72 . Wiring Diagram -- STEP/L -- ................................99 .
How to Proceed With Trouble Diagnosis ............... 72 . Terminals and Reference Value for BCM ............. 100 .
Preliminary Check ................................................. 73 . Step Lamp Does Not Operate .............................. 100 .
CHECK POWER SUPPLY AND GROUND CIR- Bulb Replacement ................................................ 101 .
CUIT ................................................................... 73
. Removal and Installation ...................................... 101 .
CONSULT-II Functions .......................................... 73 . BACK-UP LAMP .................................................... 102 .
Front Fog Lamps Do Not Illuminate (Both Sides) ... 73 Wiring Diagram -- BACK/L -- ............................. 102 .
Front Fog Lamp Does Not Illuminate (One Side) ... 74 Bulb Replacement ................................................ 103 .
Aiming Adjustment ................................................. 75 . Removal and Installation ...................................... 103 .
Removal and Installation ....................................... 75 . PARKING, LICENSE PLATE AND TAIL LAMPS ... 104 .
TURN SIGNAL AND HAZARD WARNING LAMPS... 77 System Description .............................................. 104 .
System Description ................................................ 77 . OPERATION BY LIGHTING SWITCH .............. 104 .
TURN SIGNAL OPERATION .............................. 77 . BATTERY SAVER CONTROL .......................... 105 .
HAZARD LAMP OPERATION ............................ 77 . CAN Communication System Description ........... 105 .
REMOTE KEYLESS ENTRY SYSTEM OPERA- Schematic ............................................................ 106
.
TION ................................................................... 78
. Wiring Diagram -- TAIL/L -- ................................ 107 .
CAN Communication System Description ............. 78 . Terminals and Reference Value for BCM ............. 110 .
Schematic .............................................................. 79
. Terminals and Reference Values for IPDM E/R ... 110 .

Revision: May 2004 LT-2 2004 Altima
How to Proceed With Trouble Diagnosis ..............110 . ACTIVE TEST .................................................. 122 .
Preliminary Check ................................................ 111 . Interior Lamp Control Does Not Operate ............. 122 . A
CHECK POWER SUPPLY AND GROUND CIR- Bulb Replacement ............................................... 123 .
CUIT .................................................................. 111
. MAP LAMP ....................................................... 123
.
CONSULT-II Functions ......................................... 111 . Removal and Installation ..................................... 123 . B
Parking, License Plate and/or Tail Lamps Do Not ROOM LAMP ................................................... 123 .
Illuminate .............................................................. 111
. IGNITION KEY HOLE ILLUMINATION LAMP .. 124 .
Parking, License Plate and Tail Lamps Do Not Turn ILLUMINATION ...................................................... 125.
OFF (After Approx. 10 Minutes) ...........................115 . System Description .............................................. 125. C
Bulb Replacement ................................................116 . ILLUMINATION OPERATION BY LIGHTING
LICENSE PLATE LAMP ....................................116 . SWITCH ........................................................... 125
.
FRONT TURN SIGNAL (PARKING) LAMP ......116 . BATTERY SAVER CONTROL .......................... 126 . D
TAIL LAMP ........................................................116. CAN Communication System Description ........... 126 .
Removal and Installation ......................................116 . Schematic ............................................................ 127
.
LICENSE PLATE LAMP ....................................116 . Wiring Diagram -- ILL -- ..................................... 128 . E
FRONT TURN SIGNAL (PARKING) LAMP ......116 . Removal and Installation ..................................... 132 .
REAR COMBINATION LAMP ...........................116 . ILLUMINATION CONTROL SWITCH ............... 132 .
INTERIOR ROOM LAMP ........................................117 . GLOVE BOX LAMP .......................................... 132 .
Component Parts and Harness Connector Location ..117 VANITY MIRROR AND TRUNK ROOM LAMPS ... 133 . F
System Description ..............................................118 . Wiring Diagram -- INT/L -- ................................. 133 .
INTERIOR LAMP TIMER OPERATION ............118 . Bulb Replacement for Vanity Mirror Lamp ........... 135 .
BATTERY SAVER .............................................118 . Bulb Replacement, Removal and Installation for G
Wiring Diagram -- ROOM/L -- ............................119 . Trunk Room Lamp ............................................... 135 .
Terminals and Reference Value for BCM ............ 120 . BULB SPECIFICATIONS ....................................... 136 .
CONSULT-II Function (BCM) .............................. 120 . Headlamp ............................................................ 136
. H
CONSULT-II BASIC OPERATION .................... 120 . Exterior Lamp ...................................................... 136
.
WORK SUPPORT ............................................ 121 . Interior Lamp/Illumination .................................... 136 .
DATA MONITOR .............................................. 121 .
I

Revision: May 2004 LT-3 2004 Altima
PRECAUTIONS

PRECAUTIONS PFP:00011

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00652

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:
q 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.
q 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.
q 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 EKS003C0

q Never work with wet hands.
q The xenon headlamp system includes a high voltage generating
part. Be sure to disconnect battery negative cable (negative ter-
minal) or power fuse before removing, installing, or touching the
xenon headlamp (including lamp bulb).
q Turn the lighting switch OFF before disconnecting and connect-
ing the connector.
q When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.
q When checking the headlamp on/off operation, check it on vehi- PKIA0183E
cle and with the power connected to the vehicle-side connector.
q 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.
q 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.
q When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.
q Leaving the bulb removed from the headlamp housing for a long
period of time can deteriorate the performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb and have it
on hand when replacing the bulb. EL-3422D

q When adjusting the headlamp aiming, turn the aiming adjust-
ment 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.)
q Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
Wiring Diagrams and Trouble Diagnosis EKS003C1

When you read wiring diagrams, refer to the following:
q GI-12, "How to Read Wiring Diagrams"
q PG-4, "POWER SUPPLY ROUTING CIRCUIT"

Revision: May 2004 LT-4 2004 Altima
PRECAUTIONS

When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" A
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"

Revision: May 2004 LT-5 2004 Altima
HEADLAMP (FOR USA)

HEADLAMP (FOR USA) PFP:26010

Component Parts and Harness Connector Location EKS003C2

WKIA1577E

System Description EKS003C3

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
requesting the headlamps (and tail lamps) illuminate. This input is communicated to the IPDM E/R (intelligent
power distribution module engine room) across the CAN communication lines. The central processing unit of
the IPDM E/R controls the headlamp high and headlamp low relay coils. When energized, these relays direct
power to the respective headlamps, which then illuminate.
OUTLINE
Power is supplied at all times
q to headlamp high relay, located in the IPDM E/R, and
q to headlamp low relay, located in the IPDM E/R, and
q to BCM terminal 7
q through 50A fusible link (letter f , located in the fuse and fusible link box).
With the ignition switch in the ON or START position, power is supplied
q to BCM terminal 35
q through 10A fuse [No. 12, located in the fuse block (J/B)].
With the ignition switch in the ACC or ON position, power is supplied
q to BCM terminal 36
q through 10A fuse [No. 6, located in the fuse block (J/B)].
Ground is supplied

Revision: May 2004 LT-6 2004 Altima
HEADLAMP (FOR USA)

q to BCM terminals 8, 27, and 63
q through body grounds F14 (QR25DE models), M57, M61, E15, and E24. A

Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input requesting the headlamps to illuminate. This B
input is communicated to the IPDM E/R across the CAN communication lines. The central processing unit of
the IPDM E/R controls the headlamp low relay coil. When energized, this relay directs power
q to 15A fuse (No. 36, located in the IPDM E/R)
C
q through terminal 20 of the IPDM E/R
q to terminal 1 of headlamp RH, and
q to 15A fuse (No. 45, located in the IPDM E/R) D
q through terminal 30 of the IPDM E/R
q to terminal 1 of headlamp LH.
Ground is supplied at all times E
q to terminal 2 of headlamp RH
q through body grounds E15 and E24, and
q to terminal 2 of headlamp LH F
q through body grounds E15 and E24.
With power and ground supplied, low beam headlamps illuminate.
G
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 request-
ing the headlamp high beams to illuminate. This input is communicated to the IPDM E/R across the CAN com- H
munication lines. The central processing unit of the IPDM E/R controls the headlamp high relay coil. When
energized, this relay directs power
q to 10A fuse (No. 40, located in the IPDM E/R) I
q through terminal 27 of the IPDM E/R
q to terminal 1 of headlamp RH, and
q to 10A fuse (No. 38, located in the IPDM E/R) J
q through terminal 28 of the IPDM E/R
q to terminal 1 of headlamp LH.
Ground is supplied LT
q to terminal 2 of headlamp RH
q through body grounds E15 and E24, and
L
q to terminal 2 of headlamp LH
q through body grounds E15 and E24.
With power and ground supplied, the high beam headlamps and the HIGH BEAM indicator illuminate. M
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 feature is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, unless the combination switch (lighting
switch) position is changed. If the combination switch (lighting switch) position is changed, then the headlamps
are turned off.
AUTO LIGHT OPERATION
Refer to LT-46, "System Description" for auto light operation.
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-82, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP (IF EQUIPPED)
The low beam headlamps may be equipped with xenon type bulbs. Xenon bulbs do not use a filament.
Instead, they produce light when a high voltage current is passed between two tungsten electrodes through a

Revision: May 2004 LT-7 2004 Altima
HEADLAMP (FOR USA)

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 advantages of the xenon type headlamp.
q The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.
q Light output is nearly double that of halogen headlamps, affording increased area of illumination.
q 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.
q Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System Description EKS003C4

Refer to LAN-4, "CAN COMMUNICATION" .

Revision: May 2004 LT-8 2004 Altima
HEADLAMP (FOR USA)

Wiring Diagram -- H/LAMP -- EKS003C5

HALOGEN A

WKWA0870E

Revision: May 2004 LT-9 2004 Altima
HEADLAMP (FOR USA)

WKWA0871E

Revision: May 2004 LT-10 2004 Altima
HEADLAMP (FOR USA)

XENON
A

WKWA0872E

Revision: May 2004 LT-11 2004 Altima
HEADLAMP (FOR USA)

WKWA0873E

Revision: May 2004 LT-12 2004 Altima
HEADLAMP (FOR USA)

Terminals and Reference Value for BCM EKS003C6

A
Measuring condition
Terminal Wire Voltage
Item Ignition
No. color Operation or condition (Approx.)
switch B
7 W/B Battery power supply OFF -- Battery voltage
8 B Ground -- -- --
C
27 B Ground -- -- --
35 G Ignition power supply ON -- Battery voltage
36 PU Ignition power supply ACC -- Battery voltage D
38 W/R Auto light sensor input ON Headlamps illuminate by auto light control 0V 3V
40 R/B Combination switch output 2 -- -- 2V 10V
41 R/G Combination switch output 3 -- -- 2V 10V E
42 R/Y Combination switch output 4 -- -- 2V 10V
43 L Combination switch output 5 -- -- 2V 10V
F
45 R Auto light sensor power -- Ignition switch OFF ON 0V 5V
47 R/W Combination switch output 1 -- -- 2V 10V
48 G/W Combination switch input 1 -- -- 1.5V 10V G
49 G/B Combination switch input 2 -- -- 1.5V 10V
50 G/R Combination switch input 3 -- -- 1.5V 10V
H
51 G/Y Combination switch input 4 -- -- 1.5V 10V
52 L/W Combination switch input 5 -- -- 1.5V 10V
53 P Auto light sensor ground -- -- -- I
63 B Ground -- -- --
70 L CAN - H -- -- 1V 3V
J
71 Y CAN - L -- -- 1V 3V

Terminals and Reference Values for IPDM E/R EKS007OB

LT
Measuring condition
Terminal Wire Reference value
Signal name Ignition
No. color Operation or condition (Approx.)
switch
L
Lighting switch OFF 0V
20 R/Y Headlamp low (RH) ON
2ND position ON Battery voltage
Lighting switch OFF 0V M
27 L/W Headlamp high (RH) ON HIGH or PASS
position ON Battery voltage

Lighting switch OFF 0V
28 G Headlamp high (LH) ON HIGH or PASS
position ON Battery voltage

Lighting switch OFF 0V
30 L Headlamp low (LH) ON
2ND position ON Battery voltage
48 L CAN - H -- -- --
49 Y CAN - L -- -- --

How to Proceed With Trouble Diagnosis EKS007OC

1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-6, "System Description" .
3. Perform the Preliminary Check. Refer to LT-14, "Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.

Revision: May 2004 LT-13 2004 Altima
HEADLAMP (FOR USA)

5. Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary Check EKS007OD

CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES OR FUSIBLE LINK
Check for blown fuses or fusible link.
Unit Power source Fuse No.
Battery f
BCM Ignition switch ON or START position 12
Ignition switch ACC or ON position 6
36
38
IPDM E/R Battery
40
45

Refer to LT-9, "Wiring Diagram -- H/LAMP --" .
OK or NG
OK >> Inspection End.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
CONSULT-II Function (BCM) EKS003C7

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
BCM diagnosis
Check item, diagnosis mode Description
part
Work support Changes the setting for each function.
HEADLAMP Data monitor Displays BCM input data in real time.
Active test Operation of electrical loads can be checked by sending drive signal to them.
Self-diagnosis BCM performs self-diagnosis of CAN communication.
BCM
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.

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 carries 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.

BBIA0002E
LKIA0070E

Revision: May 2004 LT-14 2004 Altima
HEADLAMP (FOR USA)

2. Touch "START (NISSAN BASED VEHICLE)".
A

BCIA0029E

D
3. Touch "BCM" on "SELECT SYSTEM" screen.
If "BCM" is not indicated, go to GI-37, "CONSULT-II Data Link
Connector (DLC) Circuit" . E

G
BCIA0030E

4. Select the desired part to be diagnosed on the "SELECT TEST H
ITEM" screen.

LKIA0072E LT

DATA MONITOR
Operation Procedure L
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. M

All signals Monitors all the signals.
Selection from menu Selects and monitors individual signal.

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".
Display Item List
Monitor item name "OPERATION OR
Contents
UNIT"
"IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch signal is dis-
IGN ON SW "ON/OFF"
played.
ACC ON SW "ON/OFF" Displays "ACC (ON)/OFF, Ignition OFF (OFF)" status judged from ignition switch signal.

Revision: May 2004 LT-15 2004 Altima
HEADLAMP (FOR USA)

Monitor item name "OPERATION OR
Contents
UNIT"
Displays status of the lighting switch as judged from the lighting switch signal. (AUTO posi-
AUTO LIGHT SWNote "ON/OFF"
tion: ON/Other than AUTO position: OFF)
Displays status (lighting switch 1st position: ON/Others: OFF) of light switch judged from
TAIL LAMP SW "ON/OFF"
lighting switch signal.
Displays status (headlamp switch: ON/Others: OFF) of headlamp switch judged from light-
HEAD LAMP SW 1 "ON/OFF"
ing switch signal.
Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from
HI BEAM SW "ON/OFF"
lighting switch signal.
Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from
PASSING SW "ON/OFF"
lighting switch signal.
Displays status (front fog switch: ON/Others: OFF) of front fog switch judged from lighting
FR FOG SW "ON/OFF"
switch signal.
Displays status of the driver door as judged from the driver door switch signal. (Door is
DOOR SW - DR "ON/OFF"
open: ON/Door is closed: OFF)
Displays status of the passenger door as judged from the passenger door switch signal.
DOOR SW - AS "ON/OFF"
(Door is open: ON/Door is closed: OFF)
Displays status of the rear doors as judged from the rear door switch signal. (Door is open:
DOOR SW - RR "ON/OFF"
ON/Door is closed: OFF)
Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from
HEAD LAMP SW 2 "ON/OFF"
lighting switch signal.
Displays "ambient light (close to 5V when light/close to 0V when dark)" judged from auto
OPTICAL SENSOR [0 - 5V]
light sensor signal.

NOTE:
Vehicles without auto light system display this item, but cannot monitor it.
ACTIVE TEST
Operation Procedure
1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.
Display Item List
Display on CONSULT-II
Test item Description
screen
Tail light relay output TAIL LAMP Allows tail light relay to operate by switching ON

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