2003 NISSAN TEANA ECU

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
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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

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INSTALLATION ................................................. 121
Removal and Installation of Door Weatherstrip .... 121
REMOVAL ......................................................... 121
INSTALLATION ................................................. 122
FRONT DOOR LOCK ............................................. 123
Component Structure ........................................... 123
Removal and Installation ...................................... 123
REMOVAL ......................................................... 123
INSTALLATION ................................................. 126
Disassembly and Assembly ................................. 126
DOOR KEY CYLINDER ASSEMBLY ................ 126
OUTSIDE HANDLE ........................................... 127
REAR DOOR LOCK ............................................... 128
Component Structure ........................................... 128
Removal and Installation ...................................... 128
REMOVAL ......................................................... 128
INSTALLATION ................................................. 130
TRUNK LID ............................................................. 131
Fitting Adjustment ................................................ 131
LONGITUDINAL AND LATERAL CLEARANCE
ADJUSTMENT .................................................. 131
SURFACE HEIGHT ADJUSTMENT ................. 131
Removal and Installation of Trunk Lid Assembly . 132
REMOVAL ......................................................... 132
INSTALLATION ................................................. 133
Trunk Lid Stay Removal and Installation .............. 133
REMOVAL ......................................................... 133
INSTALLATION ................................................. 133
Removal and Installation of Trunk Lid Lock ......... 134
REMOVAL ......................................................... 134
INSTALLATION ................................................. 134
Trunk Lid Striker Removal and Installation ........... 134
REMOVAL ......................................................... 134
INSTALLATION ................................................. 134
Removal and Installation of Trunk Lid Weatherstrip . 135
REMOVAL ......................................................... 135
INSTALLATION ................................................. 135
TRUNK LID OPENER ............................................. 136
Component Parts and Harness Connector Location . 136
System Description .............................................. 136
TRUNK LID OPENER OPERATION ................. 136Wiring Diagram — TLID — ...................................137
Terminal and Reference Value for BCM ...............138
CONSULT-II Function (BCM) ...............................138
CONSULT-II STRAT PROCEDURE ..................138
CONSULT-II APPLICATION ITEMS ..................138
NATS(NISSAN ANTI-THEFT SYSTEM) .................139
Component Parts and Harness Connector Location .139
System Description ...............................................140
DESCRIPTION ..................................................140
SECURITY INDICATOR ....................................141
System Composition .............................................141
ECM Re-Communicating Function .......................142
Wiring Diagram – NATS – ....................................143
MODELS WITH INTELLIGENT KEY SYSTEM . 143
MODELS WITHOUT INTELLIGENT KEY SYS-
TEM ...................................................................145
Terminals and Reference Value for Steering Lock
Unit/with Intelligent Key System ...........................146
Terminals and Reference Value for Intelligent Key
Unit/with Intelligent Key System ...........................146
Terminals and Reference Value for BCM .............147
CONSULT-II ..........................................................148
CONSULT-II INSPECTION PROCEDURE ........148
CONSULT-II DIAGNOSTIC TEST MODE FUNC-
TION ..................................................................149
HOW TO READ SELF-DIAGNOSTIC RESULTS .149
NATS SELF-DIAGNOSTIC RESULT ITEM
CHART ..............................................................149
Diagnosis Procedure ............................................151
WORK FLOW ....................................................151
Trouble Diagnosis Symptom Chart .......................152
Security Indicator Inspection ................................152
Diagnostic Procedure 1 ........................................153
Diagnostic Procedure 2 ........................................154
Diagnostic Procedure 3 ........................................155
Diagnostic Procedure 4 ........................................156
Diagnostic Procedure 5 ........................................157
Diagnostic Procedure 6 ........................................159
Removal and Installation NATS Antenna Amp. ....160
REMOVAL .........................................................160
INSTALLATION .................................................160

BL-8
SQUEAK AND RATTLE TROUBLE DIAGNOSES

DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T models, drive position on A/T models).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Engine Ear or mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to BL-9, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape are available through your authorized Nissan Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
Each item can be ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 × 135 mm (3.94 × 5.31 in)/76884-71L01: 60 × 85 mm (2.36 × 3.35 in)/76884-71L02: 15 ×
25 mm (0.59 × 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 × 50 mm (1.97 × 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50
× 50 mm (1.97 × 1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 × 50 mm (1.18 × 1.97 in)

BL-10
SQUEAK AND RATTLE TROUBLE DIAGNOSES

TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. Trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. Rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

BL-14
HOOD

SURFACE HEIGHT ADJUSTMENT
1. Remove hood lock, and adjust the surface height difference of hood, fender and headlamp according to
the fitting standard dimension, by rotating RH and LH bumper rubbers.
2. Install hood lock temporarily, and move hood lock laterally until the centers of striker and lock become ver-
tical when viewed from the front.
3. Check that the hood lock secondary latch is properly engaged
with the secondary striker with hood's own weight.
4. Check that the hood lock primary latch is securely engaged with
the hood striker with hood's own weight by dropping hood from
approx. 200 mm (7.87) height.
CAUTION:
Do not drop hood from a height of 300 mm (11.81 in) or
more.
5. Move hood lockup and down until striker smoothly engages the
lock when the hood is closed.
6. When pulling the hood opener lever gently, make sure that front
end of the hood rises by approximately 20 mm (0.79) and that hood striker and hood lock primary latch is
disengaged. Also make sure that hood opener returns to the original position.
7. After adjustment, tighten lock bolts to the specified torque.
Removal and InstallationBIS000VQ
Hood (B) - Headlamp (B) : 0.75 ± 1.8 mm (0.030 ± 0.071 in)
Hood (C) - fender (C) : 0 ± 1.0 mm (0 ± 0.039 in)
PIIB0259E
1. Hood assembly 2. Hood stay 3. Hood hinge
4. Hood lock 5. Washer hose 6. Hood insulator
7. Radiator core seal rubber
PIIB0260E

BL-16
HOOD

Removal and Installation of Hood Lock ControlBIS000VR
REMOVAL
Hood Lock and Hood Lock Cable
1. Remove hood lock bolts.
2. Disconnect hood lock cable from hood lock.
3. Remove fender protector (LH). Refer to EI-23, "
FENDER PRO-
TECTOR" .
4. Remove hood lock cable clips, from radiator core upper support
and hood ledge.
5. Remove hood opener and grommet on lower dashboard.
6. Pull out hood lock cable toward passenger room.
CAUTION:
While pulling the cable, be careful not to damage (peel) outer surface of the cable on edges of
body through hole.
INSTALLATION
Install in the reverse order of removal.
1. Pull the hood lock cable through the panel hole to the engine
compartment.
CAUTION:
Be careful not to bend the cable too much, keeping the
radius 100 mm (3.94 in) or more.
2. Make sure that the cable is not offset from the positioning grommet, and push the grommet into the panel
hole securely.
3. Apply sealant (POS seal) to area on the grommet indicated with the * mark.
1. Hood lock cable 2. Hood lock
PIIB1753E
: 23.6N·m (2.4 kg-m, 18 ft-lb)
PIIB1754E
PIIA0173E

HOOD
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4. Install cable securely to the lock.
5. After installing, check hood lock adjustment and hood opener
operation.
6. After installing, perform hood fitting adjustment. Refer to BL-13,
"Fitting Adjustment" .
Hood Lock Control InspectionBIS000VS
CAUTION:
If the hood lock cable is bent or deformed, replace it.
1. Make sure that the hood lock secondary latch is properly
engaged with the secondary striker with hood's own weight.
2. Make sure that the hood lock primary latch is securely engaged
with the hood striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height.
CAUTION:
Do not drop hood from a height of 300 mm (11.81) or more.
3. When pulling hood opener lever gently, make sure that front end of the hood rises by approximately 20
mm (0.79in) and that hood striker and hood lock primary latch are disengaged. Also make sure that hood
opener returns to the original position.
4. Confirm hood lock is properly lubricated. If necessary, apply
grease at the point shown in the figure.
PIIB1755E
PIIB0259E
PIIB1334E

BL-20
FRONT FENDER

FRONT FENDERPFP:63100
Removal and InstallationBIS000VU
REMOVAL
1. Remove the front bumper. Refer to EI-14, "FRONT BUMPER" .
2. Remove fender protector mounting clips and screws from out side. Refer to EI-23, "
FENDER PROTEC-
TOR" .
3. Remove center mud guard. Refer to EI-24, "
CENTER MUD GUARD" .
4. Remove bolts securing radiator core support side.
5. Remove hood hinge cover (rubber). Refer to EI-21, "
COWL TOP" .
6. Remove side turn signal lamp.
7. Remove bolts, and then remove front fender.
CAUTION:
While removing use a shop cloth to protect body from damaging.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

After installing, apply touch-up paint (the body color) onto the head of the front fender mounting
bolts.

After installing, check front fender adjustment. Refer to BL-13, "Fitting Adjustment" and BL-119,
"Fitting Adjustment" .
1. Bolt 2. Front fender
PIIB0267E