2003 NISSAN TEANA Power

BCM (BODY CONTROL MODULE)
BCS-9
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BCS

MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote control entry system

Remote keyless entry receiver

Key switch

Front door switch (driver side)

Front door switch (passenger side)

Rear door switch RH

Rear door switch LH

Front door lock assembly
(driver side) (door lock actuator)

Front door lock assembly
(passenger side) (door lock actuator)

Rear door lock actuator RH

Rear door lock actuator LH

Trunk lid opener actuator

Turn signal lamp (RH, LH)

Combination meter
(turn signal indicator, warning chime)
Intelligent Key system

Intelligent Key unit

Front door switch (driver side)

Front door switch (passenger side)

Rear door switch RH

Rear door switch LH

Front door lock assembly
(driver side) (door lock actuator)

Front door lock assembly
(passenger side) (door lock actuator)

Rear door lock actuator RH

Rear door lock actuator LH

Trunk lid opener actuator

Turn signal lamp (RH, LH)

Combination meter
(turn signal indicator, warning chime)
Power door lock system

Power window main switch
(door lock and unlock switch)

Front door lock assembly (driver side)
(door unlock sensor)

Key switch

Front door switch (driver side)

Front door switch (passenger side)

Rear door switch RH

Rear door switch LH

Front door lock assembly
(driver side) (door lock actuator)

Front door lock assembly
(passenger side) (door lock actuator)

Rear door lock actuator RH

Rear door lock actuator LH
Trunk lid openerTrunk lid and fuel lid opener switch
(Trunk lid opener switch)Trunk lid lock assembly
(trunk lid opener actuator)
Power supply (IGN) to power window,
sunroofIgnition power supply Power window and sunroof system
Power supply (BAT) to power window,
sunroof and power seatBattery power supply Power window, sunroof system and power seat
Headlamp Combination switch

IPDM E/R

Combination meter
(HIGH beam indicator)
Exterior lamp battery saver control

Ignition switch

Combination switchIPDM E/R
Auto light system

Optical sensor

Combination switch

Ignition switch (ACC, ON)IPDM E/R
Parking, license plate and tail lamps Combination switch

IPDM E/R

Combination meter (Tail lamp indicator)
Front fog lamp Combination switch

IPDM E/R

Combination meter
(Front fog lamp indicator)

BCS-10
BCM (BODY CONTROL MODULE)

CAN Communication UnitBKS001UH
Refer to LAN-49, "CAN System Specification Chart" .
Rear fog lamp Combination switch

Rear fog lamp

Combination meter
(Rear fog lamp indicator)
Turn signal lamp

Combination switch

Ignition switch (ON)

Turn signal lamp

Combination meter
(turn signal indicator, warning chime)
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
(turn signal indicator, warning chime)
Interior room lamp timer

Key switch

Remote keyless entry receiver

Power window main switch
(door lock and unlock switch)

Front door lock assembly (driver side)

Front door switch (driver side)

Front door switch (passenger side)

Rear door switch LH

Rear door switch RH

Ignition switch (ON)

Map lamp

Personal lamp RH

Personal lamp LH

Ignition keyhole illumination
Key warning chime

Key switch

Front door switch (driver side)

Ignition switch (ON)Combination meter (warning buzzer)
Light warning chime

Combination switch

Front door switch (driver side)

Ignition switch (ON)Combination meter (warning buzzer)
Oil pressure warning lamp

IPDM E/R

Ignition switch (ON)Combination meter (warning lamp)
Front wiper and washer system

Combination switch

Combination meter

Ignition switch (ON)IPDM E/R
Headlamp washer

Headlamp washer switch

Combination switch

Ignition switch (ON)IPDM E/R
Rear window defogger

Rear window defogger switch

Ignition switch (ACC, ON)IPDM E/R
A/C switch signal

Unified meter and A/C amp.

Ignition switch (ON)ECM
Blower fan switch signal

Unified meter and A/C amp.

Ignition switch (ON)ECM System Input Output

BCM (BODY CONTROL MODULE)
BCS-13
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CONSULT-II Function (BCM)BKS001UK
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start Procedure" .
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 carry out CAN communication.
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
×:Applicable
NOTE:
This item is displayed, but should not be used.BCM diagnostic test item Check item, diagnostic test mode Content
Inspection by partWORK SUPPORT Changes setting of each function.
SELF-DIAGNOSIS RESULTS BCM performs self-diagnosis of CAN communication.
DATA MONITOR Displays the input data of BCM in real time.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication
can be read.
ACTIVE TEST Gives a drive signal to a load to check the operation.
ECU PART NUMBER ECM part number can be read.
CONFIGURATION (Not be used.)
CONSULT-II display System and itemDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSDATA
MONITORCAN
DIAG
SUP-
PORT
MNTRACTIVE
TESTECU
PA R T
NUMBERCON-
FIGU-
RATION
BCM BCM×× × ×
×
NOTE
DOOR LOCK Power door lock system×××
REAR DEFOGGER Rear window defogger××
BUZZER Warning chime××
INT LAMP Room lamp timer×××
MULTI REMOTE ENTRemote keyless entry
system×××
HEAD LAMP Headlamp×××
WIPER Wiper×××
FLASHERTurn signal lamp
Hazard lamp××
AIR CONDITONERBlower fan switch signal
A/C switch signal×
INTELLIGENT KEY Intelligent Key system×
COMB SW Combination switch×
IMMU NATS××
BATTERY SAVER Room lamp battery saver×× ×
TRUNK Trunk lid opener××
SIGNAL BUFFER Oil pressure switch××
PANIC ALARM Panic alarm×

BCM (BODY CONTROL MODULE)
BCS-15
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Check BCM Power Supply and Ground CircuitBKS001UJ
1. CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .

Refer to LT- 11 , "Wiring Diagram — H/LAMP —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
Unit Power source Fuse and fusible link No.
BCMBatteryM
17
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M311
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M442 Battery
voltageBattery
voltageBattery
voltage
55 Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Connector Terminal
GroundContinuity
M4 52 Yes
PKIA6256E

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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SECTION BL
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BODY, LOCK & SECURITY SYSTEM
INDEX FOR DTC ........................................................ 4
DTC No. Index ......................................................... 4
INTELLIGENT KEY / NATS I-KEY ........................ 4
NATS V5.0 ............................................................ 4
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Work ................................................ 5
PREPARATION ........................................................... 6
Commercial Service Tools ........................................ 6
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 7
Work Flow ................................................................ 7
CUSTOMER INTERVIEW ..................................... 7
DUPLICATE THE NOISE AND TEST DRIVE ....... 8
CHECK RELATED SERVICE BULLETINS ........... 8
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 8
REPAIR THE CAUSE ........................................... 8
CONFIRM THE REPAIR ....................................... 9
Generic Squeak and Rattle Troubleshooting ........... 9
INSTRUMENT PANEL .......................................... 9
CENTER CONSOLE ............................................. 9
DOORS ................................................................. 9
TRUNK ................................................................ 10
SUNROOF/HEADLINING ................................... 10
SEATS ................................................................. 10
UNDERHOOD ..................................................... 10
Diagnostic Worksheet ............................................. 11
HOOD ....................................................................... 13
Fitting Adjustment .................................................. 13
LONGITUDINAL AND LATERAL CLEARANCE
ADJUSTMENT .................................................... 13
FRONT END HEIGHT ADJUSTMENT ............... 13
SURFACE HEIGHT ADJUSTMENT ................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 15INSTALLATION ................................................... 15
Removal and Installation of Hood Lock Control ..... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
Hood Lock Control Inspection ................................ 17
RADIATOR CORE SUPPORT .................................. 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 19
FRONT FENDER ...................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSTALLATION ................................................... 20
POWER DOOR LOCK SYSTEM .............................. 21
Component Parts and Harness Connector Location ... 21
System Description ................................................. 22
LOCK OPERATION ............................................. 22
UNLOCK OPERATION ........................................ 22
KEY REMINDER DOOR SYSTEM ...................... 23
VEHICLE SPEED SENSING AUTO DOOR
LOCK FUNCTION ............................................... 23
OVERRIDE MECHANISM ................................... 23
CAN Communication System Description .............. 23
CAN Communication Unit ....................................... 23
Schematic ............................................................... 24
Wiring Diagram -D/LOCK- ...................................... 25
FIG. 1 ................................................................... 25
FIG. 2 ................................................................... 26
FIG. 3 ................................................................... 27
FIG. 4 ................................................................... 28
Terminals and Reference Value for BCM ............... 29
Work Flow ............................................................... 29
CONSULT-II Function (BCM) ................................. 30
CONSULT-II START PROCEDURE .................... 30
CONSULT-II APPLICATION ITEMS .................... 30
Trouble Diagnosis Chart by Symptom .................... 31
BCM Power Supply and Ground Circuit ................. 32
Check Door Switch ................................................. 33
Check Key Switch ................................................... 35
Check Door Lock and Unlock Switch ..................... 37

BL-2 Check Door Lock Actuator Output Signal ............... 39
Check Door Lock Actuator Circuit .......................... 40
(DRIVER SIDE AND REAR LH) .......................... 40
(PASSENGER SIDE AND REAR RH) ................. 41
Check Door Unlock Sensor .................................... 42
FUEL FILLER LID OPENER ..................................... 44
Component Part and Harness Connector Location ... 44
Wiring Diagram –F/LID– ......................................... 45
REMOTE KEYLESS ENTRY SYSTEM ..................... 46
Component Parts and Harness Connector Location ... 46
System Description ................................................. 46
INPUTS ............................................................... 46
OPERATED PROCEDURE ................................. 47
CAN Communication System Description .............. 48
CAN Communication Unit ....................................... 48
Schematic ............................................................... 49
Wiring Diagram — KEYLES— ................................ 50
FIG. 1 ................................................................... 50
FIG. 2 ................................................................... 51
FIG. 3 ................................................................... 52
Terminals and Reference Value for BCM ................ 53
Terminals and Reference Value for IPDM E/R ........ 54
CONSULT-II Function (BCM) .................................. 54
CONSULT-II START PROCEDURE .................... 54
CONSULT-II APPLICATION ITEMS .................... 54
Work Flow ............................................................... 56
Trouble Diagnosis Symptom Chart ......................... 56
Check Key Fob Battery and Function ..................... 57
Check ACC Switch ................................................. 58
Check Door Switch ................................................. 59
CHECK DOOR SWITCH (EXCEPT TRUNK
ROOM LAMP SWITCH) ...................................... 59
CHECK TRUNK ROOM LAMP SWITCH ............ 61
Check Key Switch ................................................... 63
Check Hazard Function .......................................... 64
Check Map Lamp and Ignition Keyhole Illumination
Function .................................................................. 64
ID Code Entry Procedure ....................................... 64
KEY FOB ID SET UP WITH CONSULT-II ........... 64
KEY FOB ID SET UP WITHOUT CONSULT-II .... 66
Key Fob Battery Replacement ................................ 67
INTELLIGENT KEY SYSTEM ................................... 68
Component Parts and Harness Connector Location ... 68
System Description ................................................. 70
DOOR LOCK/UNLOCK, TRUNK OPEN FUNC-
TION .................................................................... 70
REMOTE KEYLESS ENTRY FUNCTIONS ......... 71
ENGINE START FUNCTION ............................... 72
WARNING AND ALARM FUNCTION .................. 73
CHANGE SETTINGS FUNCTION ....................... 76
INTELLIGENT KEY REGISTRATION .................. 76
STEERING LOCK UNIT REGISTRATION .......... 77
CAN Communication System Description .............. 77
CAN Communication Unit ....................................... 77
Schematic ............................................................... 78
Wiring Diagram — I/KEY— .................................... 80
Terminals and Reference Value for Intelligent Key
Unit ......................................................................... 88
Terminals and Reference Value for Steering Lock Unit .......................................................................... 90
Terminals and Reference Value for BCM ................ 90
Diagnosis Procedure ............................................... 91
WORK FLOW ...................................................... 91
ENGINE START FUNCTION DIAGNOSTIC
PROCEDURE ...................................................... 92
CONSULT-II Functions (INTELLIGENT KEY) ......... 93
CONSULT-II Inspection Procedure ......................... 93
BASIC OPERATION ............................................ 93
CONSULT-II Application Items ................................ 93
SELF-DIAGNOSTIC RESULTS ........................... 93
DATA MONITOR .................................................. 93
WORK SUPPORT ............................................... 94
ACTIVE TEST ...................................................... 95
Trouble Diagnosis Symptom Chart ......................... 96
ALL FUNCTIONS OF THE INTELLIGENT KEY
ARE NOT OPERATING ....................................... 96
REMOTE KEYLESS ENTRY FUNCTION MAL-
FUNCTION .......................................................... 96
DOOR LOCK FUNCTION MALFUNCTION ......... 97
TRUNK OPEN FUNCTION MALFUNCTION ....... 97
HAZARD REMINDER FUNCTION MALFUNC-
TION .................................................................... 98
ENGINE START FUNCTION MALFUNCTION .... 98
WARNING CHIME FUNCTION MALFUNCTION ... 99
Check CAN Communication System ....................100
Check Intelligent Key Unit Power Supply and
Ground Circuit .......................................................100
Check Key Switch (Intelligent Key Unit Input) .......101
Check Key Switch (BCM Input) .............................102
Check Ignition knob Switch ...................................103
Check Door Switch ...............................................105
CHECK DOOR SWITCH (EXCEPT TRUNK
ROOM LAMP SWITCH) .....................................105
CHECK TRUNK ROOM LAMP SWITCH ...........107
Check Door Request Switch .................................109
Check Intelligent Key Warning Buzzer .................. 111
Check Outside Key Antenna .................................112
Check Inside Key Antenna ....................................114
Check Steering Lock Unit ......................................115
Check Headlamp Function ....................................117
Removal and Installation of Intelligent Key Unit ....117
REMOVAL ..........................................................117
INSTALLATION ..................................................117
Intelligent Key Battery Replacement .....................117
DISASSEMBLY AND ASSEMBLY OF INTELLI-
GENT KEY .........................................................117
INTELLIGENT KEY BATTERY INSPECTION ...118
DOOR ......................................................................119
Fitting Adjustment .................................................119
FRONT DOOR ...................................................119
REAR DOOR .....................................................119
STRIKER ADJUSTMENT ..................................120
Removal and Installation of Front Door ................120
REMOVAL ..........................................................120
INSTALLATION ..................................................120
Removal and Installation of Rear Door .................120
REMOVAL ..........................................................121

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BIS000VH
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
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.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectBIS000VI
NOTE:

This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT
SYSTEM).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
Precautions for WorkBIS000VJ

After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check
their operation.

Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.

BL-6
PREPARATION

PREPARATIONPFP:00002
Commercial Service ToolsBIS000VL
Tool name Description
Engine ear Location the noise
Power tool Loosening bolts and nuts
SIIA0995E
PBIC0191E