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K ELECTRICAL

SECTION
LIGHTING SYSTEM
LT B

E
CONTENTS
PRECAUTIONS ......................................................... 4 . Aiming Adjustment ................................................. 23. F
Precautions for Supplemental Restraint System PREPARATION BEFORE ADJUSTING ............. 23 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- LOW BEAM AND HIGH BEAM .......................... 23 .
SIONER" ................................................................. 4
. ADJUSTMENT USING AN ADJUSTMENT G
HEADLAMP (FOR USA) ........................................... 5 . SCREEN (LIGHT/DARK BORDERLINE) ........... 24 .
Component Parts and Harness Connector Location 5 ..... Bulb Replacement ................................................. 25 .
System Description ................................................. 5 . HEADLAMP (HIGH/LOW) .................................. 25 .
H
OUTLINE .............................................................. 5
. HEADLAMP (HIGH/LOW) SE-R ......................... 25 .
HEADLAMP OPERATION ................................... 6 . PARKING (CLEARANCE) LAMP ....................... 25 .
COMBINATION SWITCH READING FUNCTION 6 ..... FRONT TURN SIGNAL LAMP ........................... 25 .
CAN COMMUNICATION SYSTEM DESCRIP- FRONT TURN SIGNAL LAMP ........................... 25 . I
TION ........................................................................ 6
. Removal and Installation ....................................... 25 .
Schematic ............................................................... 7
. REMOVAL .......................................................... 25
.
Wiring Diagram ....................................................... 8 . INSTALLATION .................................................. 25 . J
Terminals and Reference Values for BCM ............ 12 . Disassembly and Assembly ................................... 26 .
Terminals and Reference Values for IPDM E/R .... 12 . DISASSEMBLY .................................................. 26 .
How to Perform Trouble Diagnoses ...................... 12 . ASSEMBLY ........................................................ 26.
LT
Preliminary Check ................................................. 12 . HEADLAMP (FOR CANADA) - DAYTIME LIGHT
CHECK POWER SUPPLY AND GROUND CIR- SYSTEM - ................................................................. 27
.
CUIT FOR BCM ................................................. 12 . Component Parts and Harness Connector Location 27 ...
CHECK POWER SUPPLY AND GROUND CIR- System Description ................................................ 27. L
CUIT FOR IPDM E/R ......................................... 12 . OUTLINE ............................................................ 27
.
CONSULT-III Function (BCM) ............................... 12 . HEADLAMP OPERATION .................................. 28 .
WORK SUPPORT .............................................. 12 . COMBINATION SWITCH READING FUNCTION 29 ... M
DATA MONITOR ................................................ 12 . CAN Communication System Description ............. 29 .
ACTIVE TEST .................................................... 13 . Schematic .............................................................. 30
.
SELF-DIAGNOSTIC RESULTS ......................... 13 . Wiring Diagram -- DTRL -- .................................. 31 .
CONSULT-III Function (IPDM E/R) ....................... 13 . Terminals and Reference Values for BCM ............. 35 .
DATA MONITOR ................................................ 14 . Terminals and Reference Values for IPDM E/R ..... 35 .
ACTIVE TEST .................................................... 14 . How to Perform Trouble Diagnoses ...................... 35 .
Headlamp High Beam Does Not Illuminate (Both Preliminary Check ................................................. 35.
Sides) .................................................................... 14
. CHECK BCM CONFIGURATION ....................... 35 .
Headlamp High Beam Does Not Illuminate (One CHECK POWER SUPPLY AND GROUND CIR-
Side) ...................................................................... 17
. CUIT FOR BCM ................................................. 35 .
High Beam Indicator Lamp Does Not Illuminate ... 18 CHECK POWER SUPPLY AND GROUND CIR-
Headlamp Low Beam Does Not Illuminate (Both CUIT FOR IPDM E/R ......................................... 35 .
Sides) .................................................................... 18
. CONSULT-III Function (BCM) ............................... 35 .
Headlamp Low Beam Does Not Illuminate (One CONSULT-III Function (IPDM E/R) ....................... 35 .
Side) ...................................................................... 21
. Daytime Light Control Does Not Operate Properly
Headlamps Do Not Turn OFF ............................... 22 . (High Beam Headlamps Operate Properly) ........... 35 .

Revision: December 2006 LT-1 2007 Sentra
Aiming Adjustment ................................................. 37 . LIGHTING AND TURN SIGNAL SWITCH ...............62 .
Bulb Replacement ................................................. 37 . Removal and Installation ........................................62 .
Removal and Installation ....................................... 37 . REMOVAL ...........................................................62 .
Disassembly and Assembly ................................... 37 . INSTALLATION ...................................................62 .
FRONT FOG LAMP ................................................. 38 . HAZARD SWITCH ....................................................63 .
Component Parts and Harness Connector Location 38 ... Removal and Installation ........................................63 .
System Description ................................................ 38 . REMOVAL ...........................................................63 .
OUTLINE ............................................................ 38
. INSTALLATION ...................................................63 .
FOG LAMP OPERATION ................................... 38 . COMBINATION SWITCH .........................................64 .
COMBINATION SWITCH READING FUNCTION 39 ... Wiring Diagram -- COMBSW -- ...........................64 .
CAN Communication System Description ............. 39 . Combination Switch Reading Function ..................65 .
Wiring Diagram -- F/FOG -- ................................. 40 . Terminals and Reference Values for BCM .............65 .
Terminals and Reference Values for BCM ............. 42 . CONSULT-III Function (BCM) ................................65 .
Terminals and Reference Values for IPDM E/R ..... 42 . Combination Switch Inspection ..............................65 .
How to Proceed With Trouble Diagnosis ............... 42 . Removal and Installation ........................................67 .
Preliminary Check ................................................. 42 . STOP LAMP .............................................................68 .
CHECK POWER SUPPLY AND GROUND CIR- Wiring Diagram -- STOP/L -- ...............................68 .
CUIT FOR BCM .................................................. 42 . Bulb Replacement of High-Mounted Stop Lamp ....69 .
CHECK POWER SUPPLY AND GROUND CIR- Bulb Replacement of Rear Combination Lamp for
CUIT FOR IPDM E/R .......................................... 42 . Stop Lamp ..............................................................69
.
CONSULT-III Function (BCM) ................................ 42 . Removal and Installation of High-Mounted Stop
CONSULT-III Function (IPDM E/R) ........................ 42 . Lamp, All Except SE-R ..........................................69 .
Front Fog lamps Do Not Illuminate (Both Sides) ... 42 REMOVAL ...........................................................69 .
Front Fog Lamp Does Not Illuminate (One Side) ... 45 INSTALLATION ...................................................69 .
Aiming Adjustment ................................................. 46 . Removal and Installation of High-Mounted Stop
Bulb Replacement ................................................. 46 . Lamp, SE-R ...........................................................69.
Removal and Installation, All Except SE-R ............ 46 . REMOVAL ...........................................................69 .
REMOVAL .......................................................... 46. INSTALLATION ...................................................69 .
INSTALLATION ................................................... 47 . Removal and Installation of Rear Combination
Removal and Installation, SE-R ............................. 47 . Lamp for Stop Lamp ...............................................69 .
REMOVAL .......................................................... 47. BACK-UP LAMP ......................................................70 .
INSTALLATION ................................................... 47 . Wiring Diagram -- BACK/L -- ...............................70 .
TURN SIGNAL AND HAZARD WARNING LAMPS... 48 Bulb Replacement ..................................................71 .
Component Parts and Harness Connector Location 48 ... Removal and Installation ........................................71 .
System Description ................................................ 48 . PARKING, LICENSE PLATE AND TAIL LAMPS .....72 .
TURN SIGNAL OPERATION .............................. 48 . Component Parts and Harness Connector Location ...72
HAZARD LAMP OPERATION ............................ 49 . System Description ................................................72 .
REMOTE KEYLESS ENTRY SYSTEM OPERA- OPERATION BY LIGHTING SWITCH ................72 .
TION ................................................................... 50
. COMBINATION SWITCH READING FUNCTION ...73
COMBINATION SWITCH READING FUNCTION 50 ... EXTERIOR LAMP BATTERY SAVER CONTROL ...73
CAN Communication System Description ............. 50 . CAN Communication System Description .............73 .
Schematic .............................................................. 51
. Schematic ..............................................................74
.
Wiring Diagram -- TURN -- .................................. 52 . Wiring Diagram -- TAIL/L -- ..................................75 .
Terminals and Reference Values for BCM ............. 56 . Terminals and Reference Values for BCM .............78 .
How to Proceed With Trouble Diagnosis ............... 56 . Terminals and Reference Values for IPDM E/R .....78 .
Preliminary Check ................................................. 56 . How to Proceed With Trouble Diagnosis ...............78 .
CHECK POWER SUPPLY AND GROUND CIR- Preliminary Check ..................................................78 .
CUIT FOR BCM .................................................. 56 . CHECK POWER SUPPLY AND GROUND CIR-
CONSULT-III Function (BCM) ................................ 56 . CUIT FOR BCM ..................................................78 .
Turn Signals Do Not Operate ................................ 56 . CHECK POWER SUPPLY AND GROUND CIR-
Front Turn Signal Lamp Does Not Operate ........... 56 . CUIT FOR IPDM E/R ..........................................78 .
Rear Turn Signal Lamp Does Not Operate ............ 57 . CONSULT-III Function (BCM) ................................78 .
Hazard Warning Lamp Does Not Operate But Turn CONSULT-III Function (IPDM E/R) ........................78 .
Signal Lamp Operates ........................................... 59 . Parking, License Plate and Tail Lamps Do Not Illu-
Turn Signal Indicator Lamp Does Not Operate ...... 60 . minate ....................................................................78
.
Bulb Replacement of Front Turn Signal Lamp ....... 61 . Parking, License Plate and Tail Lamps Do Not Illu-
Bulb Replacement of Rear Turn Signal Lamp ....... 61 . minate ....................................................................78
.
Removal and Installation of Front Turn Signal Lamp 61 ... Parking, License Plate and Tail Lamps Do Not Illu-
Removal and Installation of Rear Turn Signal Lamp 61 ... minate ....................................................................78
.

Revision: December 2006 LT-2 2007 Sentra
Parking, License Plate and Tail Lamps Do Not Turn Schematic .............................................................. 93
.
OFF (After Approx. 10 Minutes) ............................ 84 . Wiring Diagram -- INT/L -- ................................... 94 . A
Bulb Replacement ................................................. 85
. Terminals and Reference Values for BCM ............. 98 .
PARKING LAMP ................................................ 85 . How to Proceed With Trouble Diagnosis ............... 98 .
LICENSE PLATE LAMP ..................................... 85 . Preliminary Check ................................................. 98
. B
TAIL LAMP ......................................................... 85
. CHECK POWER SUPPLY AND GROUND CIR-
Removal and Installation ....................................... 85 . CUIT FOR BCM ................................................. 98 .
PARKING LAMP ................................................ 85 . CONSULT-III Function (BCM) ............................... 98 .
LICENSE PLATE LAMP ..................................... 85 . WORK SUPPORT .............................................. 98 . C
TAIL LAMP ......................................................... 85
. DATA MONITOR ................................................ 98 .
REAR COMBINATION LAMP ................................. 86 . ACTIVE TEST .................................................... 99.
Components .......................................................... 86
. Interior Room Lamp Control Does Not Operate .... 99 . D
Bulb Replacement ................................................. 86
. Bulb Replacement ............................................... 100 .
Removal and Installation ....................................... 86 . ROOM LAMP ................................................... 100 .
REMOVAL .......................................................... 86
. Removal and Installation ..................................... 101 . E
INSTALLATION .................................................. 87. ROOM LAMP ................................................... 101 .
Disassembly and Assembly .................................. 87 . ILLUMINATION ...................................................... 102.
DISASSEMBLY .................................................. 87 . System Description .............................................. 102.
ASSEMBLY ........................................................ 87
. ILLUMINATION OPERATION BY LIGHTING F
INTERIOR LAMP ..................................................... 88. SWITCH ........................................................... 102
.
Map lamp .............................................................. 88
. CAN Communication System Description ........... 103 .
BULB REPLACEMENT ...................................... 88 . Schematic ............................................................ 104
. G
REMOVAL AND INSTALLATION ....................... 88 . Wiring Diagram -- ILL -- ..................................... 105 .
Luggage Compartment Lamp ............................... 88 . Bulb Replacement ............................................... 110 .
BULB REPLACEMENT ...................................... 88 . GLOVE BOX LAMP .......................................... 110 . H
REMOVAL AND INSTALLATION ....................... 88 . MOOD LAMP ................................................... 110 .
INTERIOR ROOM LAMP ......................................... 89 . Removal and Installation ..................................... 110 .
Component Parts and Harness Connector Location 89 ... MOOD LAMP ................................................... 110 .
I
System Description ............................................... 89
. BULB SPECIFICATIONS ........................................111 .
POWER SUPPLY AND GROUND ..................... 89 . Headlamp .............................................................111
.
SWITCH OPERATION ....................................... 90 . Exterior Lamp .......................................................111
.
INTERIOR ROOM LAMP TIMER OPERATION... 91 Interior Lamp/Illumination .....................................111 . J
INTERIOR LAMP BATTERY SAVER CONTROL 92 ...

Revision: December 2006 LT-3 2007 Sentra
PRECAUTIONS

PRECAUTIONS PFP:00011

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00JMA

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:
G 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.
G 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.
G 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.

Revision: December 2006 LT-4 2007 Sentra
HEADLAMP (FOR USA)

HEADLAMP (FOR USA) PFP:26010
A
Component Parts and Harness Connector Location EKS00JMB

WKIA5751E

1. IPDM E/R E46, E47 and E48 2. BCM M18 and M20 (view with 3. Combination switch (lighting switch) E
instrument panel removed) M28
4. Combination meter M24

System Description EKS00JMC
F

Headlamp operation is controlled by the BCM (body control module) based on inputs from the combination
switch (lighting switch). When the lighting switch is placed in the 2ND position, the BCM receives an input sig-
G
nal requesting the headlamps (and tail lamps) illuminate. The BCM sends a signal, via the CAN communica-
tion lines, to the IPDM E/R (intelligent power distribution module engine room) requesting the headlamps be
turned ON. The CPU (central processing unit) located in the IPDM E/R controls ground for the headlamp high
and headlamp low relay coils. These relays direct power to the respective headlamps, which then illuminate. H
OUTLINE
Power is supplied at all times
I
G to headlamp high relay RH and LH (located in IPDM E/R),
G to headlamp low relay (located in IPDM E/R),
G to ignition relay (located in IPDM E/R), J
G through 15A fuse (No. 52, located in IPDM E/R) and
G through 20A fuse (No. 53, located in IPDM E/R)
G to CPU located in IPDM E/R, LT
G through 50A fusible link (letter j , located in fuse and fusible link block)
G to BCM terminal 70,
L
G through 10A fuse [No. 21, located in fuse block (J/B)]
G to BCM terminal 57, and
G through 10A fuse [No. 19, located in fuse block (J/B)]
M
G to combination meter terminal 1.
With the ignition switch in the ON or START position, power is supplied
G to the ignition relay (located in IPDM E/R),
G through 10A fuse [No. 12, located in fuse block (J/B)]
G to BCM terminal 38,
G through 10A fuse [No. 14, located in fuse block (J/B)]
G to combination meter terminal 2.
With the ignition switch in the ACC or ON position, power is supplied
G through 10A fuse [No. 6, located in fuse block (J/B)]
G to BCM terminal 11.
Ground is supplied
G to BCM terminal 67
G to combination meter terminals 3 and 21
G through grounds M57 and M61, and

Revision: December 2006 LT-5 2007 Sentra
HEADLAMP (FOR USA)

G to IPDM E/R terminals 39 and 59
G through grounds E9, E15 (all models) and E24 (with MR20DE).
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives an input signal requesting the headlamps to illumi-
nate. The BCM then sends a signal, via the CAN communication lines, to the IPDM E/R requesting the low
beam headlamps be turned ON. The CPU located in the IPDM E/R controls ground to the headlamp low relay
coil, which when energized, directs power
G through 15A fuse (No. 41, located in IPDM E/R)
G through IPDM E/R terminal 54
G to headlamp RH terminal 3, and
G through 15A fuse (No. 40, located in IPDM E/R)
G through IPDM E/R terminal 52
G to headlamp LH terminal 3.
Ground is supplied
G to headlamp RH and LH terminals 5
G through grounds E9, E15 (all models) and E24 (with MR20DE).
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and high beam switch in the HIGH position, the BCM receives an input
signal requesting the headlamp high beams to illuminate. The flash to pass feature can be used any time and
also sends a signal to the BCM. This input signal is then communicated to the IPDM E/R and the combination
meter via the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp high relays
(LH and RH), which when energized, directs power
G through 10A fuse (No. 34, located in IPDM E/R)
G through IPDM E/R terminal 56
G to headlamp RH terminal 6, and
G through 10A fuse (No. 35, located in IPDM E/R)
G through IPDM E/R terminal 55
G to headlamp LH terminal 6.
Ground is supplied
G to headlamp RH and LH terminal 5
G through grounds E9, E15 (all models) and E24 (with MR20DE).
With power and ground supplied, the high beam headlamps illuminate.
The BCM sends a signal, via the CAN communication lines, to the combination meter requesting the high
beam indicator lamp be turned ON.
COMBINATION SWITCH READING FUNCTION
Refer to LT-65, "Combination Switch Reading Function" .
CAN COMMUNICATION SYSTEM DESCRIPTION EKS00JMD

Refer to LAN-4, "SYSTEM DESCRIPTION" .

Revision: December 2006 LT-6 2007 Sentra
HEADLAMP (FOR USA)

Schematic EKS00JME

BKWA0779E

Revision: December 2006 LT-7 2007 Sentra
HEADLAMP (FOR USA)

Wiring Diagram EKS00JMF

BKWA0780E

Revision: December 2006 LT-8 2007 Sentra
HEADLAMP (FOR USA)

BKWA0832E

Revision: December 2006 LT-9 2007 Sentra
HEADLAMP (FOR USA)

BKWA0833E

Revision: December 2006 LT-10 2007 Sentra
HEADLAMP (FOR USA)

BKWA0783E

Revision: December 2006 LT-11 2007 Sentra
HEADLAMP (FOR USA)

Terminals and Reference Values for BCM EKS00JMG

Refer to BCS-13, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for IPDM E/R EKS00JMH

Refer to PG-26, "Terminals and Reference Values for IPDM E/R" .
How to Perform Trouble Diagnoses EKS00JMI

1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to LT-5, "System Description" .
3. Perform the Preliminary Check. Refer to LT-12, "Preliminary Check" .
4. Check symptom and repair or replace the cause of the malfunction.
5. Do the headlamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. Inspection end.
Preliminary Check EKS00JMJ

CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-16, "BCM Power Supply and Ground Circuit Check" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-29, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-III Function (BCM) EKS00JMK

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
BCM diagnostic
Diagnostic mode Description
test item
Supports inspections and adjustments. Commands are transmitted to the BCM
WORK SUPPORT for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
Inspection by part
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.

WORK SUPPORT
Display Item List
Item Description CONSULT-III Factory setting
Exterior lamp battery saver control mode can be changed ON

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