2003 NISSAN TEANA check engine

GI-46
TERMINOLOGY

Exhaust gas recirculation control-BPT
valveEGRC-BPT valve BPT valve
Exhaust gas recirculation control-solenoid
valveEGRC-solenoid valve EGR control solenoid valve
Exhaust gas recirculation temperature sen-
sor
EGRT sensor Exhaust gas temperature sensor
EGR temperature sensor
Flash electrically erasable programmable
read only memoryFEEPROM ***
Flash erasable programmable read only
memoryFEPROM ***
Flexible fuel sensor FFS ***
Flexible fuel system FF system ***
Fuel pressure regulator *** Pressure regulator
Fuel pressure regulator control solenoid
valve*** PRVR control solenoid valve
Fuel trim FT ***
Heated Oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve-air regulator IACV-air regulator Air regulator
Idle air control valve-auxiliary air control
valveIACV-AAC valve Auxiliary air control (AAC) valve
Idle air control valve-FICD solenoid valve IACV-FICD solenoid valve FICD solenoid valve
Idle air control valve-idle up control sole-
noid valveIACV-idle up control solenoid valve Idle up control solenoid valve
Idle speed control-FI pot ISC-FI pot FI pot
Idle speed control system ISC system ***
Ignition control IC ***
Ignition control module ICM ***
Indirect fuel injection system IFI system ***
Intake air IA Air
Intake air temperature sensor IAT sensor Air temperature sensor
Knock *** Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP ***
Manifold absolute pressure sensor MAPS ***
Manifold differential pressure MDP ***
Manifold differential pressure sensor MDPS ***
Manifold surface temperature MST ***
Manifold surface temperature sensor MSTS ***
Manifold vacuum zone MVZ ***
Manifold vacuum zone sensor MVZS ***
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection System MFI system Fuel injection controlNEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

GW-6
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 GW-7, "
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)

IDX-3
A
C
D
E
F
G
H
I
J
K
L B
IDX
ALPHABETICAL INDEX
CAN (Controller Area Network) . BL-23, BL-48, BL-77,
GW-56
, SE-16
CAN communication EC-113, EC-458, AT-27, CVT-19,
CVT-53
, BL-23, BL-48, BL-77, GW-56, SE-16, WW-9
Canister-See EVAP canister ............... EC-29, EC-369
CHARGE - Wiring diagram ................................ SC-28
Charging system ................................................ SC-27
Chassis and body maintenance ........................ MA-35
CHIME - Wiring diagram ..................................... DI-60
CIGAR - Wiring diagram .................................. WW-60
Cigarette lighter ............................................... WW-60
Circuit breaker ................................................... PG-16
Closed loop control .............................. EC-22, EC-359
Collision diagnosis ........................................... SRS-55
Combination meter ............................................... DI-4
COMM - Wiring diagram ........................ AV-49, AV-73
Component Location (auto A/C) ...................... ATC-36
Compression pressure(QR20DE) ...................... EM-65
Compression pressure(VQ23DE and VQ35DE) ...........
EM-210
Compressor clutch removal and installation .. ATC-136
Compressor special service tool ...................... ATC-15
Condenser ..................................................... ATC-142
Connecting rod bearing clearance(QR20DE) .. EM-105
Connecting rod bearing clearance(VQ23DE and
VQ35DE) ......................................................... EM-251
Connecting rod bushing clearance(QR20DE) . EM-101
Connecting rod bushing clearance(VQ23DE and
VQ35DE) ......................................................... EM-247
Connecting rod(QR20DE) ............................... EM-101
Connecting rod(VQ23DE and VQ35DE) ......... EM-247
CONSULT-II for engine ....................... EC-80, EC-425
CONSULT-II Reference value (CVT) .............. CVT-43
Control units (terminal arrangement) ................. PG-74
Control valve (CVT) ......................................... CVT-23
Controller Area Network (CAN) . BL-23, BL-48, BL-77,
GW-56
, SE-16
Converter housing installation ............ AT-244, AT-355
COOL/F - Wiring diagram .................. EC-222, EC-579
Coolant mixture ratio ......................................... MA-15
Coolant replacement(QR20DE) ......................... MA-16
Coolant replacementVQ35DE ........................... MA-25
Cooling circuit (engine)(QR20DE) ....................... CO-8
Cooling circuit (engine)(VQ32DE and VQ35DE) CO-32
Cooling fan control ........................................... EC-575
Cooling fan motor ............................................ EC-575
Cooling fan relay .............................................. EC-575
Cooling fan(QR20DE) ........................................ CO-20
Cooling fan(VQ23DE and VQ35DE) .................. CO-44
Cowl top ............................................................... EI-21
Cowl top cover ..................................................... EI-21
Crankcase ventilation system - See Positive crankcase
ventilation ............................................ EC-30
, EC-370
Crankshaft position sensor (POS) ..... EC-169, EC-517
Crankshaft(QR20DE) ...................................... EM-104
Crankshaft(VQ23DE and VQ35DE) ................ EM-251
Crash zone sensor .......................................... SRS-44
CVT air breather hose ................................... CVT-186
CVT control system ......................................... CVT-16
CVT cross-sectional view ................................ CVT-15
CVT Electrical parts location ............................ CVT-30
CVT fluid checking ................ CVT-13, CVT-32, MA-36
CVT Fluid Cooler ........................................... CVT-189
CVT fluid replacement ........................ CVT-14, MA-38
CVT fluid temparature sensor .......................... CVT-69
CVT hydraulic control system .......................... CVT-17
CVT indicator ...................................................... DI-52
CVT self-diagnoses ......................................... CVT-47
CVT shift lock system .................................... CVT-180
CVT trouble diagnoses .................................... CVT-24
CVTIND - Wiring diagram ................................... DI-52
Cylinder block boring(QR20DE) ..................... EM-104
Cylinder block(QR20DE) .................................. EM-81
Cylinder block(VQ23DE and VQ35DE) .......... EM-228
Cylinder head bolt tightening(QR20DE) ........... EM-68
Cylinder head bolt tightening(VQ23DE and VQ35DE) .
EM-213
Cylinder head(QR20DE) ................................... EM-65
Cylinder head(VQ23DE and VQ35DE) ........... EM-210
D
D/LOCK - Wiring diagram .................................. BL-25
Diagnosis sensor unit ..................................... SRS-47
Diagnostic trouble code (DTC) for OBD system EC-10,
EC-34
, EC-347, EC-375
Diagnostic trouble code (DTC) inspection priority chart
EC-58
, EC-400, CVT-24
Differentil side oil seal .................................... CVT-187
Display and amp.assembly ............... ATC-44, ATC-56
Display Control Unit ........................................... AV-61
Display Unit ........................................................ AV-41
Door glass ........................................... GW-46, GW-50
Door glass Fitting Adjustment(Front) ................ GW-49
Door glass Fitting Adjustment(Rear) ................. GW-53
Door lock .......................................................... BL-123
Door mirror .......................................... GW-74, GW-77
Door trim ............................................................. EI-35
Door, front ........................................... BL-119, GW-46
Door, rear ............................................ BL-119, GW-50
Drive belt inspection(QR20DE) ......................... MA-16
Drive belt inspection(VQ23DE and VQ35DE) ... MA-24
Drive belt(QR20DE) .......................................... EM-14
Drive belt(VQ23DE and VQ35DE) .................. EM-128
Drive shaft ......................................................... MA-43
Driver air bag .................................................. SRS-35
Dropping resistor (A/T) .................................... AT-132
Duct and grilles .............................................. ATC-126
E
ECM input/output signal ....................... EC-72
, EC-415
ECM power supply EC-106, EC-193, EC-451, EC-541
ECM/PW - Wiring diagram ................. EC-194, EC-542
ECTS - Wiring diagram ...................... EC-133, EC-476
Electric sunroof .................................................. RF-10
Electric throttle control actuator ........ EC-197, EC-200,
EC-213
, EC-552, EC-555

IDX-4
ALPHABETICAL INDEX
Electric throttle control actuator (VQ23DE and VQ35DE)
EM-137
Electrical load signal circuit ................ EC-280, EC-670
Electrical unit ..................................................... PG-74
Electrical units location ...................................... PG-67
Electronic ignition (EI) system ............. EC-23, EC-360
EMNT - Wiring diagram ................................... EC-673
ENG SS - Wiring diagram ................................ AT-117
Engine control circuit diagram ............. EC-70, EC-413
Engine control component parts location .......... EC-64,
EC-406
Engine control module (ECM) ............ EC-190, EC-538
Engine control system diagram and chart ........ EC-20,
EC-357
Engine coolant temperature sensor (ECTS) ... EC-131,
EC-474
Engine coolant(QR20DE) ................................. CO-10
Engine coolant(VQ23DE and VQ35DE) ........... CO-34
Engine fail-safe system ........................ EC-59, EC-401
Engine mounting control (Front) ...................... EC-672
Engine oil filter replacement(QR20DE) ............. MA-21
Engine oil filter replacement(VQ23DE and VQ35DE) ...
MA-31
Engine oil precautions .......................................... GI-8
Engine oil replacement(QR20DE) .................... MA-20
Engine oil replacementVQ23DE and VQ35DE . MA-30
Engine oil(QR20DE) ............................................ LU-7
Engine oil(VQ23DE and VQ35DE) .................... LU-19
Engine removal(QR20DE) ................................ EM-77
Engine removal(VQ23DE and VQ35DE) ........ EM-223
Engine trouble diagnoses ................................ EC-394
ETC1 - Wiring diagram ...................... EC-201, EC-556
ETC2 - Wiring diagram ...................... EC-209, EC-564
ETC3 - Wiring diagram ...................... EC-214, EC-569
EVAP canister ...................................... EC-29, EC-369
EVAP canister purge volume control solenoid valve ....
EC-282
, EC-677
EVAP vapor lines inspection ............................. MA-23
EVAP vapor lines inspection(VQ23DE and VQ35DE) ..
MA-34
EVAP vapor lines inspectionVQ23DE and VQ35DE ....
MA-33
Evaporative emission (EVAP) system . EC-27, EC-366
Evaporator ..................................................... ATC-144
Exhaust manifold(QR20DE) ............................. EM-23
Exhaust manifold(VQ23DE and VQ35DE) ..... EM-140
Exhaust system ................................................... EX-2
Exhaust system inspection ..................... EX-2, MA-35
Expansion valve ............................................. ATC-145
F
F/FOG - Wiring diagram ................................... LT-129
F/LID - Wiring diagram ....................................... BL-45
F/PUMP - Wiring diagram .................. EC-296, EC-691
Floor trim ............................................................. EI-52
Flow charts ......................................................... GI-24
Fluid temparature sensor (CVT) ...................... CVT-69
Fluids ................................................................ MA-14
Fluorescent leak detector ............................. ATC-146
Fog lamp, front ................................................. LT-126
Freeze frame data .............................. EC-35, EC-376
FRO2 - Wiring diagram ..................... EC-302, EC-309
FRO2B1 - Wiring diagram ................ EC-697, EC-707
FRO2B2 - Wiring diagram ................ EC-699, EC-709
Front bumper ...................................................... EI-14
Front door ............................. BL-119, BL-123, GW-46
Front fog lamp .................................................. LT-126
Front passenger air bag .................................. SRS-39
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-46
Front side air bag ............................................ SRS-40
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTS - Wiring diagram ...................................... CVT-70
Fuel cut control (at no load high engine speed) EC-24,
EC-361
Fuel gauge ............................................................ DI-4
Fuel injector and fuel tube(QR20DE) ................ EM-34
Fuel injector and fuel tube(VQ23DE and VQ35DE) ......
EM-155
Fuel lid opener, electric ...................................... BL-44
Fuel line inspection .............................................. FL-3
Fuel line inspection(QR20DE) .......................... MA-20
Fuel line inspectionVQ23DE and VQ35DE ....... MA-30
Fuel pressure check ........................... EC-49, EC-392
Fuel pressure release ......................... EC-49, EC-392
Fuel pump ......................................... EC-295, EC-690
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank .............................................................. FL-8
Fuel tank vacuum relief valve ............. EC-29, EC-369
Fuse .................................................................. PG-16
Fuse and fusible link box .................................. PG-80
Fusible link ........................................................ PG-16
G
Gauges ................................................................. DI-4
Glass ...................................... GW-11, GW-46, GW-50
Grease .............................................................. MA-14
Grille - See Exterior ............................................ EI-20
Ground distribution ........................................... PG-29
H
H/AIM - Wiring diagram ................................... LT-122
H/LAMP - Wiring diagram .................................. LT-42
Harness connector ............................................ PG-71
Harness layout .................................................. PG-42
Hazard warning lamp ....................................... LT-152
Headlamp aiming control ...................... LT-99, LT-122
Headlamp leveler - See Headlamp aiming control ........
LT-122
Headlining - See Roof trim .................................. EI-54
Heated oxygen sensor 1 ..... EC-143, EC-150, EC-301
Heated oxygen sensor 1 (bank 1) .... EC-486, EC-496,
EC-696

SQUEAK AND RATTLE TROUBLE DIAGNOSES
IP-5
C
D
E
F
G
H
J
K
L
MA
B
IP

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 IP-6, "
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)

TROUBLE DIAGNOSES WORK FLOW
LAN-27
[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
L
MA
B
LAN

2. CAN DIAG SUPPORT MNTR: Check each item on “CAN DIAG SUPPORT MNTR”. Draw a line on the
diagnosis sheet to indicate the error circuit.
a. Reception item of “ENGINE”: On “TCM”, “UNKWN” is indicated. This means ECM cannot receive the sig-
nal from TCM. Draw a line to indicate an error between ECM and TCM (line 2-a in the figure).
NOTE:
If “UNKWN” is indicated on “TRANSMIT DIAG”, then the control unit cannot transmit CAN communication
signal to each unit. Draw a line between the control unit and the splice.
b. Reception item of “ADAPTIVE LIGHT”: On “TCM”, “UNKWN” is indicated. This means AFS cannot
receive the signal from TCM. Draw a line to indicate an error between AFS and TCM (line 2-b in the fig-
ure).
c. Reception item of “MULTI AV”: “UNKWN” is not indicated. This indicates normal communication between
AV and its receiving units. Do not draw any line.
SKIB8725E

LAN-34
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW

2. CAN DIAG SUPPORT MNTR (with PAST): Check the CAN DIAG SUPPORT MNTR (with PAST) of units
indicating “U1000” or “U1001” on SELF-DIAG RESULTS. Draw a line on the diagnosis sheet to indicate
the possible error circuit.
NOTE:
For the details of each indication on CAN DIAG SUPPORT MNTR, refer to LAN-44, "
CAN Diagnostic Sup-
port Monitor" .
a. Reception item of “ENGINE”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means ECM could not
receive the signal from ABS in the past. Draw a line between ECM and ABS (line 2-a in the figure).
b. Reception item of “METER”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means M&A could not
receive the signal from ABS in the past. Draw a line between M&A and ABS (line 2-b in the figure).
c. Reception item of “TRANSMISSION”: “VDC/TCS/ABS”, “3” is indicated in the “PAST”. This means TCM
could not receive the signal from ABS in the past. Draw a line between TCM and ABS (line 2-c in the fig-
ure).
SKIB8732E

TROUBLE DIAGNOSIS
LAN-49
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

CAN System Specification ChartBKS002DO
Determine CAN system type from the following specification chart. Then choose the correct diagnosis sheet.
NOTE:
Refer to LAN-19, "
CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION
CHART)" for how to use CAN system specification chart.
×: ApplicableBody typeSedan
Axle2WD
Engine QR20DE/VQ23DE VQ23DE VQ35DE
Transmission A/T CVT
Brake control ABS VDC
Automatic drive positioner×××
Adaptive front-lighting system××
Intelligent Key system××
Integrated display system××
Integrated color display system××
CAN system type 1 2 3 4
Diagnosis sheetLAN-64, "
DIAG-
NOSIS SHEET"
LAN-65, "DIAG-
NOSIS SHEET"
LAN-66, "DIAG-
NOSIS SHEET"
LAN-67, "DIAG-
NOSIS SHEET"
CAN communication signal chartLAN-51, "TYPE 1/TYPE 2"LAN-52, "TYPE 3"LAN-54, "TYPE 4"