2003 NISSAN TEANA Power

LT-230
INTERIOR ROOM LAMP

Terminals and Reference Values for BCMBKS001R8
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
7 LG/R Door lock status signal OFF Door unlock sensorUNLOCK posi-
tionApprox. 0 V
Other
Approx. 8.5 - 9.0
12 R/LFront door switch (pas-
senger side) signalOFFFront door switch
(passenger side)ON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0
13 R/BRear door switch RH sig-
nalOFF Rear door switch RHON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0
37B/R
*1
BR*2Key switch signal OFFVehicle key is removed. Approx. 0 V
Vehicle key is inserted. Battery voltage
38 R Ignition switch (ON) ON — Battery voltage
39 L CAN−H— — —
40 P CAN−L— — —
42 Y/RBattery power
supplyOFF — Battery voltage
47 R/W Step lamp output signal OFFFront door switch (driver side)
or front door switch (passenger
side)ON
(open)Battery voltage
OFF
(close)Approx. 0 V
48 Y Room lamp output signalOFF
Interior
room lamp
switch:
DOOR
positionVehicle
key is
insertedAny
door
switchON
(open)Approx. 0 V
OFF
(closed)Battery voltage
—Vehicle
key is
removedAfter the
inserted key is
removedApprox. 0 V
Ignition key is
ONBattery voltage
PKIC4868J
PKIB4960J
PKIB4960J

INTERIOR ROOM LAMP
LT-231
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NOTE:
*1:WIth Intelligent Key
*2:Without Intelligent Key
How to Perform With Trouble DiagnosesBKS001R9
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 2 1 9 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 2 3 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the interior room lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF
— Battery voltage
57 V/W Trunk switch signal OFFTrunk room lamp
switchON (open) Approx. 0 V
OFF (close) Battery voltage
62 SBFront door switch (driver
side) signalOFFFront door switch
(driver side)ON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0
63 R/WRear door switch LH sig-
nalOFF Rear door switch LHON (open) Approx. 0 V
OFF (closed)
Approx. 7.5 - 8.0
64 BR/W Trunk lamp output signal OFFTrunk room lamp
switchON (open) Approx. 12 V
OFF (close) Approx. 0 V Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4960J

LT-232
INTERIOR ROOM LAMP

Preliminary CheckBKS001RA
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-225, "Wiring Diagram — ROOM/L —" .
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 connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse or fusible link No.
BCMBatteryM
17
Ignition switch ON or START position 1
Terminals Ignition switch position
(+)
(-) OFF ON
BCM
connectorTerminal
M3 38
GroundApprox. 0 V Battery voltage
M442 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM
connectorTerminal
GroundContinuity
M4 52 Yes
PKIA6256E

INTERIOR ROOM LAMP
LT-239
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5. CHECK INTERIOR ROOM LAMPS POWER SUPPLY CIRCUIT
1. Connect map lamp connector, personal lamp (RH and LH) connector and ignition keyhole illumination
connector.
2. Check voltage between map lamp harness connector and
ground.
3. Check voltage between personal lamp (RH and LH) harness
connector and ground.
4. Check voltage between ignition keyhole illumination connector
and ground.
OK or NG
OK >> Replace bulb.
NG >> Repair harness or connector.
Terminals
Voltage
(Approx.) (+)
(-)
Map lamp connector Terminal
R8 3 Ground Battery voltage
PKID0114E
Terminals
Voltage
(Approx.) (+)
(-)
Personal lamp Connector Terminal
RH R6
2 Ground Battery voltage
LH R4
PKID0119E
Terminals
Voltage
(Approx.) (+)
(-)
Ignition keyhole
illumination connectorTerminal
M4 48 Ground Battery voltage
PKID0120E

LT-244
ILLUMINATION

ILLUMINATIONPFP:27545
System DescriptionBKS001RI

BCM (Body Control Module) controls illumination lamp operation.

IPDM E/R (Intelligent Power Distribution Module Engine Room) operates illumination lamps according to
CAN communication signals from BCM.
OUTLINE
Power is supplied at all times

to ignition relay (located in IPDM E/R), from battery direct,

through 50A fusible link (letter M, located in fuse and fusible link box)

to BCM terminal 55,

through 15A fuse [No. 17, located in fuse block (J/B)]

to BCM terminal 42 and

to combination meter terminal 7,

through 15A fuse (No. 71, located in IPDM E/R)

to tail lamp relay (located in IPDM E/R) and

to CPU (central processing unit) in IPDM E/R

through 15A fuse (No. 78, located in IPDM E/R)

to CPU in IPDM E/R,

through 10A fuse [No. 19, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 21.
With the ignition switch in the ON or START position, power is supplied

to ignition relay (located in IPDM E/R),

through 10A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 12, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22,

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 8.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 52

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 10, 11, and 12

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
ILLUMINATION OPERATION BY LIGHTING SWITCH
When the lighting switch is in 1ST position, BCM detects the LIGHTING SWITCH 1ST POSITION (ON) by
BCM combination switch reading function. And then, BCM sends position light request signal (ON) through
CAN communication and MR output signal.
When receiving position light request signal (ON), IPDM E/R turns ON tail lamp relay in IPDM E/R. And then
supplies power

through IPDM E/R terminal 22

to glove box lamp terminal 1

to A/T device illumination terminal 1 (with A/T)

to CVT device illumination terminal 1 (with CVT)

to rear sunshade front switch (illumination) terminal 5 (with rear sunshade)

LT-246
ILLUMINATION


to rear heated seat switch LH (illumination) terminal 26 (with rear heated seat) and

to rear heated seat switch RH (illumination) terminal 34 (with rear heated seat)

through grounds B16 and B17,

to rear door armrest illumination RH terminal 2

through grounds B214 and B217.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
Refer to LT- 1 9 7 , "EXTERIOR LAMP BATTERY SAVER CONTROL" .
CAN Communication System DescriptionBKS001RJ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitBKS001RK
Refer to LAN-49, "CAN System Specification Chart" .

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION MA
A
B
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MAINTENANCE
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
DESCRIPTION ............................................................ 4
Pre-Delivery Inspection Items .................................. 4
GENERAL MAINTENANCE ....................................... 6
General Maintenance ............................................... 6
OUTSIDE THE VEHICLE ...................................... 6
INSIDE THE VEHICLE .......................................... 6
UNDER THE HOOD AND VEHICLE .................... 7
PERIODIC MAINTENANCE ....................................... 8
Periodic Maintenance ............................................... 8
ENGINE AND EMISSION CONTROL MAINTE-
NANCE .................................................................. 8
CHASSIS AND BODY MAINTENANCE ............... 9
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 10
ENGINE AND EMISSION CONTROL MAINTE-
NANCE ................................................................. 11
CHASSIS AND BODY MAINTENANCE ............. 12
MAINTENANCE UNDER SEVERE DRIVING
CONDITIONS ...................................................... 13
RECOMMENDED FLUIDS AND LUBRICANTS ...... 14
Fluids and Lubricants ............................................. 14
SAE Viscosity Number ........................................... 15
GASOLINE ENGINE ........................................... 15
Anti-Freeze Coolant Mixture Ratio ......................... 15
ENGINE MAINTENANCE (QR20DE) ....................... 16
Checking Drive Belts .............................................. 16
Tension Adjustment ................................................ 16
Changing Engine Coolant ...................................... 16
DRAINING ENGINE COOLANT ......................... 16
REFILLING ENGINE COOLANT ........................ 17
FLUSHING COOLING SYSTEM ......................... 18
Checking Cooling System ...................................... 18
CHECKING COOLING SYSTEM HOSES .......... 19
CHECKING RADIATOR CAP .............................. 19
CHECKING RADIATOR SYSTEM FOR LEAKS ... 20
Checking Fuel Lines ............................................... 20
Changing Air Cleaner Filter .................................... 20VISCOUS PAPER TYPE ..................................... 20
Changing Engine Oil ............................................... 20
Changing Oil Filter .................................................. 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 22
INSPECTION AFTER INSTALLATION ................ 22
Checking and Changing Spark Plugs ..................... 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 23
Checking EVAP Vapor Lines .................................. 23
ENGINE MAINTENANCE (VQ23DE AND VQ35DE) ... 24
Checking Drive Belts .............................................. 24
Tension Adjustment ................................................ 24
ALTERNATOR AND A/C COMPRESSOR BELT ... 25
POWER STEERING OIL PUMP BELT ................ 25
Changing Engine Coolant ....................................... 25
DRAINING ENGINE COOLANT .......................... 26
REFILLING ENGINE COOLANT ......................... 26
FLUSHING COOLING SYSTEM ......................... 27
Checking Cooling System ...................................... 28
CHECKING COOLING SYSTEM HOSES ........... 28
CHECKING RADIATOR CAP .............................. 28
CHECKING RADIATOR ...................................... 29
CHECKING COOLING SYSTEM FOR LEAKS ... 29
Checking Fuel Lines ............................................... 30
Changing Air Cleaner Filter .................................... 30
VISCOUS PAPER TYPE ..................................... 30
Changing Engine Oil ............................................... 30
Changing Oil Filter .................................................. 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
INSPECTION AFTER INSTALLATION ................ 32
Changing Spark Plug (Platinum-Tipped Type) ....... 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ....................... 32
INSTALLATION ................................................... 33
Checking Positive Crankcase Ventilation System ... 33
PCV (POSITIVE CRANKCASE VENTILATION)
VALVE ................................................................. 33

MA-2 PCV VALVE VENTILATION HOSE ...................... 34
Checking EVAP Vapor Lines .................................. 34
CHASSIS AND BODY MAINTENANCE ................... 35
Checking Exhaust System ...................................... 35
Checking A/T Fluid ................................................. 35
Changing A/T Fluid ................................................. 36
Checking CVT Fluid ................................................ 36
Changing CVT Fluid ............................................... 38
Balancing Wheels (Bonding Weight Type) ............. 38
REMOVAL ........................................................... 38
WHEEL BALANCE ADJUSTMENT ..................... 38
Tire Rotation ........................................................... 40
Checking Brake Fluid Level and Leaks .................. 40
Checking Brake Lines and Cables ......................... 40
Changing Brake Fluid ............................................. 40
Checking Disc Brake .............................................. 41
ROTOR ................................................................ 41
CALIPER ............................................................. 41
PAD ..................................................................... 41
Checking Steering Gear and Linkage ..................... 41
STEERING GEAR ............................................... 41
STEERING LINKAGE .......................................... 41
Checking Power Steering Fluid and Lines .............. 42
Axle and Suspension Parts ..................................... 42
Drive Shaft .............................................................. 43
Lubricating Locks, Hinges and Hood Latch ............ 43Checking Seat Belt, Buckles, Retractors, Anchors
and Adjusters .......................................................... 44
Checking Body Corrosion ....................................... 45
HEMMED PANELS .............................................. 45
PANEL JOINT ...................................................... 45
PANEL EDGE ...................................................... 45
PARTS CONTACT ............................................... 45
PROTECTORS .................................................... 45
ANTI-CORROSION MATERIALS ........................ 45
DRAIN HOLES ..................................................... 45
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 46
Standard and Limit .................................................. 46
BELT DEFLECTION (QR20DE) ........................... 46
BELT DEFLECTION (VQ23DE AND VQ35DE) ... 46
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (QR20DE) ................................................ 46
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (VQ23DE AND VQ35DE) ......................... 46
RADIATOR ........................................................... 46
ENGINE OIL CAPACITY (APPROXIMATE)
(QR20DE) ............................................................ 46
ENGINE OIL CAPACITY (APPROXIMATE)
(VQ23DE AND VQ35DE) ..................................... 47
SPARK PLUG (PLATINUM-TIPPED TYPE)
(QR20DE, VQ23DE AND VQ35DE) .................... 47
WHEEL BALANCE .............................................. 47