can NISSAN TEANA 2003 Service Manual

DI-64
WARNING CHIME

*1: With Intelligent key
*2: Without Intelligent key
Terminals and Reference Value for Unified Meter and A/C Amp. BKS001T4
35 G/B Combination switch output 2
ONLights, turn signals, wipers OFF
(Wiper dial position 4)
36 G/W Combination switch output 1
37B/R
*1
BR*2Key switch signal OFFKey is removed Approx. 0V
Key is inserted Approx. 12V
38 R Ignition switch ON or START ON — Battery voltage
39 L CAN-H OFF — —
40 P CAN-L OFF — —
42 Y/R Battery power supply OFF — Battery voltage
52 B Ground ON — Approx. 0V
55 W/B Battery power supply OFF — Battery voltage
62 SB Front door switch (driver side) OFFWhen driver door is opened
(Door switch ON)Approx. 0V
When driver door is closed
(Door switch OFF)Approx. 12V Te r m i n a lWire
colorItemMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5292E
Te r m i n a lWire
colorItem Measuring condition
Reference value
Ignition
switchOperation or condition
1 L CAN-H OFF — —
9RTX communication line (To
combination meter)ON —
11 P C A N - L O F F — —
19 G/BRX communication line
(From combination meter)ON —
21 Y/R Battery power supply OFF — Battery voltage
22 G Ignition switch ON or START ON — Battery voltage
29 B Ground (power) ON — Approx. 0V
30 B Ground ON — Approx. 0V
SKIA3362E
SKIA3361E

WARNING CHIME
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Terminals and Reference Value for Combination MeterBKS001T5
CONSULT-II FunctionBKS001T6
CONSULT-II performs the following functions communicating with the BCM.
DIAGNOSTIC ITEMS DESCRIPTION
CONSULT-II BASIC OPERATION PROCEDURE
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 performs CAN communication.
DATA MONITOR
Operation procedure
1. Touch “BUZZER” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch “ALL SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.
4. If “SELECTION FROM MENU” is selected, touch the desired monitor item. If “ALL SIGNALS” is selected,
all items required to control are monitored.
5. Touch “START”.
6. During monitoring, touching “RECORD” can start recording the monitored item status.
TerminalWire
colorItem Measuring condition
Reference value
Ignition
switchOperation or condition
7 Y/R Battery power supply OFF — Battery voltage
8 P Ignition switch ON or START ON — Battery voltage
10
B Ground ON — Approx. 0V 11
12
18 G/BTX communication line (To
unified meter and A/C amp.)ON —
19 RRX communication line
(From unified meter and A/C
amp.)ON —
SKIA3361E
SKIA3362E
System Test Item Diagnosis mode Description
BCM BUZZERData monitor The input data to the BCM control unit is displayed in real time.
Active test Operation of electrical loads can be checked by sending driving signal to them.
ALL SIGNALS Monitors main items.
SELECTION FROM MENU Selects and monitors items.

DI-76
CAN COMMUNICATION

CAN COMMUNICATIONPFP:23710
System DescriptionBKS003SL
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 UnitBKS003SM
Refer to LAN-49, "CAN System Specification Chart" in “LAN SYSTEM”.

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC

ENGINE CONTROL SYSTEM
QR
INDEX FOR DTC ...................................................... 10
DTC No. Index ....................................................... 10
Alphabetical Index .................................................. 12
PRECAUTIONS ........................................................ 14
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 14
On Board Diagnostic (OBD) System of Engine ...... 14
Precaution .............................................................. 14
PREPARATION ......................................................... 18
Special Service Tools ............................................. 18
Commercial Service Tools ...................................... 19
ENGINE CONTROL SYSTEM .................................. 20
System Diagram ..................................................... 20
Multiport Fuel Injection (MFI) System .................... 21
Electronic Ignition (EI) System ............................... 23
Fuel Cut Control (At No Load and High Engine
Speed) .................................................................... 24
AIR CONDITIONING CUT CONTROL ..................... 25
Input/Output Signal Chart ....................................... 25
CAN COMMUNICATION .......................................... 26
System Description ................................................ 26
EVAPORATIVE EMISSION SYSTEM ....................... 27
Description ............................................................. 27
Component Inspection ........................................... 29
POSITIVE CRANKCASE VENTILATION ................. 30
Description ............................................................. 30
Component Inspection ........................................... 30
NATS (NISSAN ANTI-THEFT SYSTEM) .................. 32
Description ............................................................. 32
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 33
Introduction ............................................................ 33
Two Trip Detection Logic ........................................ 33
Emission-related Diagnostic Information ................ 33
Malfunction Indicator (MI) ....................................... 36
BASIC SERVICE PROCEDURE .............................. 40
Basic Inspection ..................................................... 40
Idle Speed and Ignition Timing Check .................... 45
Procedure After Replacing ECM ............................ 47Accelerator Pedal Released Position Learning ...... 47
Throttle Valve Closed Position Learning ................. 47
Idle Air Volume Learning ........................................ 47
Fuel Pressure Check .............................................. 49
TROUBLE DIAGNOSIS ............................................ 52
Trouble Diagnosis Introduction ............................... 52
DTC Inspection Priority Chart ................................. 58
Fail-Safe Chart ....................................................... 59
Symptom Matrix Chart ............................................ 60
Engine Control Component Parts Location ............ 64
Vacuum Hose Drawing ........................................... 69
Circuit Diagram ....................................................... 70
ECM Harness Connector Terminal Layout ............. 72
ECM Terminals and Reference Value ..................... 72
CONSULT-II Function (ENGINE) ............................ 80
CONSULT-II Reference Value in Data Monitor Mode
... 90
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................... 93
TROUBLE DIAGNOSIS - SPECIFICATION VALUE ... 95
Description .............................................................. 95
Testing Condition .................................................... 95
Inspection Procedure .............................................. 95
Diagnostic Procedure ............................................. 96
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................105
Description ............................................................105
Diagnostic Procedure ...........................................105
POWER SUPPLY AND GROUND CIRCUIT ...........106
Wiring Diagram .....................................................106
Diagnostic Procedure ...........................................107
Ground Inspection .................................................111
DTC U1000, U1001 CAN COMMUNICATION LINE .113
Description ............................................................113
On Board Diagnosis Logic ....................................113
DTC Confirmation Procedure ...............................113
Wiring Diagram .....................................................114
Diagnostic Procedure ...........................................115
DTC P0011 IVT CONTROL .....................................116
Description ............................................................116

EC-4 DTC P2138 APP SENSOR .....................................272
Component Description ........................................272
CONSULT-II Reference Value in Data Monitor Mode
.272
On Board Diagnosis Logic ....................................272
DTC Confirmation Procedure ...............................273
Wiring Diagram .....................................................274
Diagnostic Procedure ...........................................275
Component Inspection ..........................................279
Removal and Installation ......................................279
ELECTRICAL LOAD SIGNAL ................................280
Description ............................................................280
CONSULT-II Reference Value in Data Monitor Mode
.280
Diagnostic Procedure ...........................................280
EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE .................................................282
Description ............................................................282
CONSULT-II Reference Value in Data Monitor Mode
.282
Wiring Diagram .....................................................283
Diagnostic Procedure ...........................................285
Component Inspection ..........................................288
Removal and Installation ......................................288
FUEL INJECTOR ....................................................289
Component Description ........................................289
CONSULT-II Reference Value in Data Monitor Mode
.289
Wiring Diagram .....................................................290
Diagnostic Procedure ...........................................291
Component Inspection ..........................................293
Removal and Installation ......................................294
FUEL PUMP ............................................................295
Description ............................................................295
CONSULT-II Reference Value in Data Monitor Mode
.295
Wiring Diagram .....................................................296
Diagnostic Procedure ...........................................297
Component Inspection ..........................................300
Removal and Installation ......................................300
HO2S1 .....................................................................301
Component Description ........................................301
CONSULT-II Reference Value in Data Monitor Mode
.301
Wiring Diagram .....................................................302
Diagnostic Procedure ...........................................304
Component Inspection ..........................................305
Removal and Installation ......................................307
HO2S1 HEATER .....................................................308
Description ............................................................308
CONSULT-II Reference Value in Data Monitor Mode
.308
Wiring Diagram .....................................................309
Diagnostic Procedure ...........................................310
Component Inspection ..........................................312
Removal and Installation ......................................312
HO2S2 .....................................................................313
Component Description ........................................313CONSULT-II Reference Value in Data Monitor Mode
.313
Wiring Diagram .....................................................314
Diagnostic Procedure ............................................315
Component Inspection ..........................................317
Removal and Installation .......................................318
HO2S2 HEATER ......................................................319
Description ............................................................319
CONSULT-II Reference Value in Data Monitor Mode
.319
Wiring Diagram .....................................................320
Diagnostic Procedure ............................................321
Component Inspection ..........................................323
Removal and Installation .......................................323
IAT SENSOR ...........................................................324
Component Description ........................................324
Wiring Diagram .....................................................325
Diagnostic Procedure ............................................326
Component Inspection ..........................................328
Removal and Installation .......................................328
IGNITION SIGNAL ..................................................329
Component Description ........................................329
Wiring Diagram .....................................................330
Diagnostic Procedure ............................................333
Component Inspection ..........................................337
Removal and Installation .......................................338
REFRIGERANT PRESSURE SENSOR ..................339
Component Description ........................................339
Wiring Diagram .....................................................340
Diagnostic Procedure ............................................341
Removal and Installation .......................................343
MI & DATA LINK CONNECTORS ...........................344
Wiring Diagram .....................................................344
SERVICE DATA AND SPECIFICATIONS (SDS) ....346
Fuel Pressure ........................................................346
Idle Speed and Ignition Timing ..............................346
Mass Air Flow Sensor ...........................................346
Intake Air Temperature Sensor .............................346
Engine Coolant Temperature Sensor ....................346
Crankshaft Position Sensor (POS) .......................346
Camshaft Position Sensor (PHASE) .....................346
Heated Oxygen Sensor 1 Heater ..........................346
Heated Oxygen sensor 2 Heater ..........................346
Throttle Control Motor ...........................................346
Fuel Injector ..........................................................346
Fuel Pump .............................................................346
VQ
INDEX FOR DTC .....................................................347
DTC No. Index ......................................................347
Alphabetical Index .................................................349
PRECAUTIONS .......................................................351
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................351
On Board Diagnostic (OBD) System of Engine ....351
Precaution .............................................................351

EC-5
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ECA
PREPARATION ....................................................... 355
Special Service Tools ........................................... 355
Commercial Service Tools .................................... 356
ENGINE CONTROL SYSTEM ................................ 357
System Diagram ................................................... 357
Multiport Fuel Injection (MFI) System .................. 358
Electronic Ignition (EI) System ............................. 360
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................. 361
AIR CONDITIONING CUT CONTROL ................... 362
Input/Output Signal Chart ..................................... 362
System Description .............................................. 362
AUTOMATIC SPEED CONTROL DEVICE (ASCD) . 363
System Description .............................................. 363
Component Description ........................................ 364
CAN COMMUNICATION ........................................ 365
System Description .............................................. 365
EVAPORATIVE EMISSION SYSTEM ..................... 366
Description ........................................................... 366
Component Inspection ......................................... 369
POSITIVE CRANKCASE VENTILATION ............... 370
Description ........................................................... 370
Component Inspection ......................................... 370
NATS (NISSAN ANTI-THEFT SYSTEM) ................ 372
Description ........................................................... 372
ON BOARD DIAGNOSTIC (OBD) SYSTEM .......... 373
Introduction .......................................................... 373
Two Trip Detection Logic ...................................... 373
Emission-related Diagnostic Information .............. 373
Malfunction Indicator (MI) ..................................... 377
BASIC SERVICE PROCEDURE ............................ 381
Basic Inspection ................................................... 381
Idle Speed and Ignition Timing Check .................. 387
Procedure After Replacing ECM .......................... 389
Accelerator Pedal Released Position Learning .... 389
Throttle Valve Closed Position Learning .............. 389
Idle Air Volume Learning ...................................... 389
Fuel Pressure Check ............................................ 392
TROUBLE DIAGNOSIS .......................................... 394
Trouble Diagnosis Introduction ............................. 394
DTC Inspection Priority Chart .............................. 400
Fail-Safe Chart ..................................................... 401
Symptom Matrix Chart ......................................... 402
Engine Control Component Parts Location .......... 406
Vacuum Hose Drawing ......................................... 412
Circuit Diagram .................................................... 413
ECM Harness Connector Terminal Layout ........... 415
ECM Terminals and Reference Value .................. 415
CONSULT-II Function (ENGINE) ......................... 425
CONSULT-II Reference Value in Data Monitor Mode
. 434
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... 438
TROUBLE DIAGNOSIS - SPECIFICATION VALUE . 440
Description ........................................................... 440
Testing Condition .................................................. 440
Inspection Procedure ........................................... 440
Diagnostic Procedure ........................................... 441
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-DENT .......................................................................450
Description ............................................................450
Diagnostic Procedure ...........................................450
POWER SUPPLY AND GROUND CIRCUIT ...........451
Wiring Diagram .....................................................451
Diagnostic Procedure ...........................................452
Ground Inspection ................................................457
DTC U1000, U1001 CAN COMMUNICATION LINE .458
Description ............................................................458
On Board Diagnosis Logic ....................................458
DTC Confirmation Procedure ...............................458
Wiring Diagram .....................................................459
Diagnostic Procedure ...........................................460
DTC P0011, P0021 IVT CONTROL ........................461
Description ............................................................461
CONSULT-II Reference Value in Data Monitor Mode
.461
On Board Diagnosis Logic ....................................462
DTC Confirmation Procedure ...............................462
Overall Function Check ........................................463
Diagnostic Procedure ...........................................464
Component Inspection ..........................................465
Removal and Installation ......................................465
DTC P0102, P0103 MAF SENSOR ........................466
Component Description ........................................466
CONSULT-II Reference Value in Data Monitor Mode
.466
On Board Diagnosis Logic ....................................466
DTC Confirmation Procedure ...............................467
Wiring Diagram .....................................................468
Diagnostic Procedure ...........................................469
Component Inspection ..........................................472
Removal and Installation ......................................473
DTC P0117, P0118 ECT SENSOR .........................474
Component Description ........................................474
On Board Diagnosis Logic ....................................474
DTC Confirmation Procedure ...............................475
Wiring Diagram .....................................................476
Diagnostic Procedure ...........................................477
Component Inspection ..........................................478
Removal and Installation ......................................478
DTC P0122, P0123 TP SENSOR ............................479
Component Description ........................................479
CONSULT-II Reference Value in Data Monitor Mode
.479
On Board Diagnosis Logic ....................................479
DTC Confirmation Procedure ...............................480
Wiring Diagram .....................................................481
Diagnostic Procedure ...........................................482
Component Inspection ..........................................485
Removal and Installation ......................................485
DTC P0132, P0152 HO2S1 .....................................486
Component Description ........................................486
CONSULT-II Reference Value in Data Monitor Mode
.486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ...............................487
Wiring Diagram .....................................................488
Diagnostic Procedure ...........................................491

EC-8 Diagnostic Procedure ...........................................648
Component Inspection ..........................................651
Removal and Installation ......................................651
DTC P2138 APP SENSOR .....................................652
Component Description ........................................652
CONSULT-II Reference Value in Data Monitor Mode
.652
On Board Diagnosis Logic ....................................652
DTC Confirmation Procedure ...............................653
Wiring Diagram .....................................................654
Diagnostic Procedure ...........................................655
Component Inspection ..........................................659
Removal and Installation ......................................659
ASCD BRAKE SWITCH ..........................................660
Component Description ........................................660
CONSULT-II Reference Value in Data Monitor Mode
.660
Wiring Diagram .....................................................661
Diagnostic Procedure ...........................................662
Component Inspection ..........................................666
ASCD INDICATOR ..................................................667
Component Description ........................................667
CONSULT-II Reference Value in Data Monitor Mode
.667
Wiring Diagram .....................................................668
Diagnostic Procedure ...........................................669
ELECTRICAL LOAD SIGNAL ................................670
Description ............................................................670
CONSULT-II Reference Value in Data Monitor Mode
.670
Diagnostic Procedure ...........................................670
ELECTRONIC CONTROLLED ENGINE MOUNT ..672
System Description ...............................................672
CONSULT-II Reference Value in Data Monitor Mode
.672
Wiring Diagram .....................................................673
Diagnostic Procedure ...........................................674
EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE .................................................677
Description ............................................................677
CONSULT-II Reference Value in Data Monitor Mode
.677
Wiring Diagram .....................................................678
Diagnostic Procedure ...........................................680
Component Inspection ..........................................683
Removal and Installation ......................................683
FUEL INJECTOR ....................................................684
Component Description ........................................684
CONSULT-II Reference Value in Data Monitor Mode
.684
Wiring Diagram .....................................................685
Diagnostic Procedure ...........................................686
Component Inspection ..........................................689
Removal and Installation ......................................689
FUEL PUMP ............................................................690
Description ............................................................690
CONSULT-II Reference Value in Data Monitor Mode
.690
Wiring Diagram .....................................................691Diagnostic Procedure ............................................692
Component Inspection ..........................................695
Removal and Installation .......................................695
HO2S1 .....................................................................696
Component Description ........................................696
CONSULT-II Reference Value in Data Monitor Mode
.696
Wiring Diagram .....................................................697
Diagnostic Procedure ............................................700
Component Inspection ..........................................704
Removal and Installation .......................................705
HO2S1 HEATER ......................................................706
Description ............................................................706
CONSULT-II Reference Value in Data Monitor Mode
.706
Wiring Diagram .....................................................707
Diagnostic Procedure ............................................711
Component Inspection ..........................................713
Removal and Installation .......................................713
HO2S2 .....................................................................714
Component Description ........................................714
CONSULT-II Reference Value in Data Monitor Mode
.714
Wiring Diagram .....................................................715
Diagnostic Procedure ............................................718
Component Inspection ..........................................720
Removal and Installation .......................................722
HO2S2 HEATER ......................................................723
Description ............................................................723
CONSULT-II Reference Value in Data Monitor Mode
.723
Wiring Diagram .....................................................724
Diagnostic Procedure ............................................727
Component Inspection ..........................................729
Removal and Installation .......................................729
IAT SENSOR ...........................................................730
Component Description ........................................730
Wiring Diagram .....................................................731
Diagnostic Procedure ............................................732
Component Inspection ..........................................734
Removal and Installation .......................................734
IGNITION SIGNAL ..................................................735
Component Description ........................................735
Wiring Diagram .....................................................736
Diagnostic Procedure ............................................741
Component Inspection ..........................................746
Removal and Installation .......................................747
REFRIGERANT PRESSURE SENSOR ..................748
Component Description ........................................748
Wiring Diagram .....................................................749
Diagnostic Procedure ............................................750
Removal and Installation .......................................752
VIAS .........................................................................753
Description ............................................................753
CONSULT-II Reference Value in Data Monitor Mode
.754
Wiring Diagram .....................................................755
Diagnostic Procedure ............................................757

EC-10
[QR]
INDEX FOR DTC

[QR]INDEX FOR DTCPFP:00024
DTC No. IndexBBS005B7
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-113, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
DTC*1Items
(CONSULT-II screen terms)Reference page
CONSULT-II
ECM*
2
No DTC
Flashing*3NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.EC-37
U1000
1000*4CAN COMM CIRCUITEC-113
U1001
1001*4CAN COMM CIRCUITEC-113
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-116
P0102 0102 MAF SEN/CIRCUITEC-124
P0103 0103 MAF SEN/CIRCUITEC-124
P0117 0117 ECT SEN/CIRCEC-131
P0118 0118 ECT SEN/CIRCEC-131
P0122 0122 TP SEN 2/CIRCEC-136
P0123 0123 TP SEN 2/CIRCEC-136
P0132 0132 HO2S1 (B1)EC-143
P0134 0134 HO2S1 (B1)EC-150
P0222 0222 TP SEN 1/CIRCEC-157
P0223 0223 TP SEN 1/CIRCEC-157
P0327 0327 KNOCK SEN/CIRC-B1EC-164
P0328 0328 KNOCK SEN/CIRC-B1EC-164
P0335 0335 CKP SEN/CIRCUITEC-169
P0340 0340 CMP SEN/CIRC-B1EC-176
P0500 0500 VEH SPEED SEN/CIRCEC-183
P0550 0550 PW ST P SEN/CIRCEC-185
P0605 0605 ECMEC-190
P1065 1065 ECM BACK UP/CIRCUITEC-193
P1121 1121 ETC ACTREC-197
P1122 1122 ETC FUNCTION/CIRCEC-200
P1124 1124 ETC MOT PWREC-207
P1126 1126 ETC MOT PWREC-207
P1128 1128 ETC MOTEC-213
P1217 1217 ENG OVER TEMPEC-218
P1225 1225 CTP LEARNINGEC-229
P1226 1226 CTP LEARNINGEC-231
P1229 1229 SENSOR POWER/CIRCEC-233
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONEC-32
P1706 1706 P-N POS SW/CIRCUITEC-238
P1720 1720 V/SP SEN (A/T OUT)EC-243

EC-12
[QR]
INDEX FOR DTC

Alphabetical IndexBBS005B8
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-113, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*1
Reference page
CONSULT-II
ECM*2
APP SEN 1/CIRC P2122 2122EC-251
APP SEN 1/CIRC P2123 2123EC-251
APP SEN 2/CIRC P2127 2127EC-258
APP SEN 2/CIRC P2128 2128EC-258
APP SENSOR P2138 2138EC-272
BRAKE SW/CIRCUIT P1805 1805EC-245
CAN COMM CIRCUIT U1000
1000*4EC-113
CAN COMM CIRCUIT U1001
1001*4EC-113
CKP SEN/CIRCUIT P0335 0335EC-169
CMP SEN/CIRC-B1 P0340 0340EC-176
CTP LEARNING P1225 1225EC-229
CTP LEARNING P1226 1226EC-231
ECM P0605 0605EC-190
ECM BACK UP/CIRCUIT P1065 1065EC-193
ECT SEN/CIRC P0117 0117EC-131
ECT SEN/CIRC P0118 0118EC-131
ENG OVER TEMP P1217 1217EC-218
ETC ACTR P1121 1121EC-197
ETC FUNCTION/CIRC P1122 1122EC-200
ETC MOT P1128 1128EC-213
ETC MOT PWR P1124 1124EC-207
ETC MOT PWR P1126 1126EC-207
HO2S1 (B1) P0132 0132EC-143
HO2S1 (B1) P0134 0134EC-150
INT/V TIM CONT-B1 P0011 0011EC-116
KNOCK SEN/CIRC-B1 P0327 0327EC-164
KNOCK SEN/CIRC-B1 P0328 0328EC-164
MAF SEN/CIRCUIT P0102 0102EC-124
MAF SEN/CIRCUIT P0103 0103EC-124
NATS MALFUNCTION P1610 - P1615 1610 - 1615EC-32
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*3EC-37
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
P-N POS SW/CIRCUIT P1706 1706EC-238
PW ST P SEN/CIRC P0550 0550EC-185
SENSOR POWER/CIRC P1229 1229EC-233
TP SEN 1/CIRC P0222 0222EC-157

EC-14
[QR]
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BBS005B9
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.
On Board Diagnostic (OBD) System of EngineBBS005BA
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-71, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM
before returning the vehicle to the customer.
PrecautionBBS005BB

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
SEF289H