2004 NISSAN TERRANO engine

ENGINE CONTROL SYSTEMSECTION
EC
CONTENTS
ZD30DDTi
TROUBLE DIAGNOSIS - INDEX ....................................7
Alphabetical & Numerical Index for DTC ....................7
PRECAUTIONS ...............................................................9
Precautions ..................................................................9
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM ........................................................................\
.12
Engine Control Component Parts Location ...............12
Circuit Diagram ..........................................................16
System Diagram ........................................................17
Vacuum Hose Drawing ..............................................18
System Chart .............................................................19
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION ...............................................20
Fuel Injection Control System ...................................20
Fuel Injection Timing Control System........................22
Air Conditioning Cut Control ......................................22
Fuel Cut Control (at no load & high engine
speed) ........................................................................\
22
Crankcase Ventilation System ...................................23
BASIC SERVICE PROCEDURE ...................................24
Injection Tube and Injection Nozzle ..........................24
Electronic Control Fuel Injection Pump .....................27
Air Bleeding ...............................................................32
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION ...............................................................33
DTC and MI Detection Logic .....................................33
Diagnostic Trouble Code (DTC) ................................33
Malfunction Indicator (MI) ..........................................34
CONSULT-II ...............................................................39
TROUBLE DIAGNOSIS - INTRODUCTION ..................46
Introduction ................................................................46
Work Flow ..................................................................48
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........50
Basic Inspection.........................................................50
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION ...............................................................56
Symptom Matrix Chart ...............................................56 CONSULT-II Reference Value in Data Monitor
Mode ........................................................................\
..66
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................\
..68
ECM Terminals and Reference Value .......................69
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT .......................................................................78
Description .................................................................78
Diagnostic Procedure ................................................78
TROUBLE DIAGNOSIS FOR POWER SUPPLY ..........79
Main Power Supply and Ground Circuit ....................79
DTC 0102 MASS AIR FLOW SEN ................................88
Component Description .............................................88
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................\
..88
ECM Terminals and Reference Value .......................88
On Board Diagnosis Logic.........................................88
DTC Confirmation Procedure ....................................89
Wiring Diagram ..........................................................90
Diagnostic Procedure ................................................92
DTC 0103 COOLANT TEMP SEN ................................95
Description .................................................................95
On Board Diagnosis Logic.........................................95
DTC Confirmation Procedure ....................................95
Wiring Diagram ..........................................................96
Diagnostic Procedure ................................................97
DTC 0104 VEHICLE SPEED SEN ................................99
Description .................................................................99
ECM Terminals and Reference Value .......................99
On Board Diagnosis Logic.........................................99
Overall Function Check ...........................................100
Wiring Diagram ........................................................101
Diagnostic Procedure ..............................................103
DTC 0203 ACCEL POS SW (F/C) ..............................104
Description ...............................................................104
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................\
104
ECM Terminals and Reference Value .....................104
On Board Diagnosis Logic.......................................104
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Diagnostic Procedure ..............................................292
ENGINE OIL PRESSURE SWITCH ............................297
Component Description ...........................................297
System Description ..................................................297
ECM Terminals and Reference Value .....................298
Wiring Diagram ........................................................299
Diagnostic Procedure ..............................................301
AIR CONDITIONER CONTROL ..................................308
Wiring Diagram ........................................................308
MI (MIL) & DATA LINK CONNECTORS .....................310
Wiring Diagram ........................................................310
SERVICE DATA AND SPECIFICATIONS (SDS) ........312
General Specifications .............................................312
Injection Pump Numbers .........................................312
Injection Nozzle .......................................................312
Engine Coolant Temperature Sensor ......................312
Crankshaft Position Sensor (TDC) ..........................312
Glow Plug ................................................................312
Accelerator Position Sensor ....................................312
EGR Volume Control Valve .....................................312
TD27Ti
TROUBLE DIAGNOSIS - INDEX ................................313
Alphabetical & Numerical Index for DTC ................313
PRECAUTIONS AND PREPARATION ........................315
Precautions ..............................................................315
Special Service Tools ..............................................318
Engine Fuel & Emission Control System ................320
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM .......................................................................323
Engine Control Component Parts Location .............323
Circuit Diagram ........................................................325
System Diagram ......................................................326
Vacuum Hose Drawing ............................................327
System Chart ...........................................................328
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION .............................................329
Fuel Injection System ..............................................329
Fuel Injection Timing System ..................................332
Air Conditioning Cut Control ....................................334
Fuel Cut Control (at high engine speed) .................334
Glow Control ............................................................334
CRANKCASE VENTILATION SYSTEM ......................335
Description ...............................................................335
Blow-by Control Valve .............................................335
Ventilation Hose .......................................................335
INJECTION NOZZLE ...................................................336
Removal and Installation .........................................336
Disassembly (No.2-4 nozzle) ...............................336
Inspection (No.2-4 nozzle) ...................................337
Cleaning (No.2-4 nozzle) .....................................337
Assembly (No.2-4 nozzle) ....................................338 Test and Adjustment ................................................339
ELECTRONIC FUEL INJECTION PUMP ....................341
Removal ...................................................................341
Installation ................................................................342
Disassembly and Assembly .....................................343
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION .............................................................344
DTC and MI Detection Logic ...................................344
Diagnostic Trouble Code (DTC) ..............................344
Malfunction Indicator (MI) ........................................345
CONSULT-II .............................................................350
TROUBLE DIAGNOSES .............................................357
Introduction ..............................................................357
Diagnostic Worksheet ..............................................358
Work Flow ................................................................359
Description for Work Flow .......................................360
Basic Inspection.......................................................361
Symptom Matrix Chart .............................................363
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................\
366
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................\
368
ECM Terminals and Reference Value .....................369
TROUBLE DIAGNOSIS FOR POWER SUPPLY ........375
Wiring Diagram ........................................................375
Diagnostic Procedure ..............................................376
DTC P0100 MASS AIR FLOW SEN ...........................379
Component Description ...........................................379
On Board Diagnosis Logic.......................................379
DTC Confirmation Procedure ..................................379
Wiring Diagram ........................................................380
Diagnostic Procedure ..............................................382
Component Inspection .............................................383
DTC P0115 COOLANT TEMP SEN ............................384
Component Description ...........................................384
On Board Diagnosis Logic.......................................384
DTC Confirmation Procedure ..................................384
Wiring Diagram ........................................................385
Diagnostic Procedure ..............................................386
Component Inspection .............................................387
DTC P0120 ACCEL POS SENSOR ............................388
Component Description ...........................................388
On Board Diagnosis Logic.......................................388
DTC Confirmation Procedure A (For General
Plausibility) ...............................................................388
DTC Confirmation Procedure B (For Accelerator
Sticking) ...................................................................389
Wiring Diagram ........................................................390
Diagnostic Procedure ..............................................391
Component Inspection .............................................394
DTC P0180 FUEL TEMP SENSOR ............................395
Component Description ...........................................395
CONTENTS(Cont'd)
EC-4
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Precautions
IAlways use a 12 volt battery as power source.
I Do not attempt to disconnect battery cable while engine is
running.
I Before connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned off.
I Before removing parts, turn off ignition switch and then
disconnect battery ground cable.
I Do not disassemble ECM.
I If a battery terminal is disconnected, the memory will
return to the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is
disconnected. However, this is not an indication of a prob-
lem. Do not replace parts because of a slight variation.
I When ECM is removed for inspection, make sure to ground
the ECM mainframe.
I When connecting ECM harness connector, tighten secur-
ing bolt until the gap between the orange indicators disap-
pears.
: 3.0 - 5.0 N ×m (0.3 - 0.5 kg-m, 26 - 43 in-lb)
I When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
I Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in the circuit, thus resulting in damage
to ICs.
I Keep ECM harness at least 10 cm (3.9 in) away from adja-
cent harnesses, to prevent an ECM system malfunction
SEF706Y
SEC220B
SEF665S
SEF308Q
SEF291H
PRECAUTIONSZD30DDTi
EC-9
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due to receiving external noise, degraded operation of ICs,
etc.
I Keep ECM parts and harnesses dry.
I Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-69.
I If MI illuminates or blinks irregularly when engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. If this does not correct the problem,
perform specified trouble diagnostic procedures.
I After performing each TROUBLE DIAGNOSIS, perform
ªDTC Confirmation Procedureº or ªOverall Function
Checkº.
The DTC should not be displayed in the ªDTC Confirmation
Procedureº if the repair is completed. The ªOverall Func-
tion Checkº should be a good result if the repair is com-
pleted.
I When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
I Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the
ECM's transistor. Use a ground other than ECM terminals,
such as the ground.
MEF040D
SAT652J
SEF348N
PRECAUTIONSZD30DDTi
Precautions (Cont'd)
EC-10
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IDo not disconnect pump harness connector with engine
running.
I Do not disassemble electronic fuel injection pump.
If NG, take proper action.
I Do not disassemble injection nozzle.
If NG, replace injection nozzle.
I Even a slight leak in the air intake system can cause seri-
ous problems.
I Do not shock or jar the crankshaft position sensor (TDC).
I Do not depress accelerator pedal when starting.
I Immediately after starting, do not rev up engine unneces-
sarily.
I Do not rev up engine just prior to shutdown.
I When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on its installation loca-
tion.
1) Keep the antenna as far as possible away from the ECM.
2) Keep the antenna feeder line more than 20 cm (7.9 in) away from the harness of electronic controls.
Do not let them run parallel for a long distance.
3) Adjust the antenna and feeder line so that the standing- wave ratio can be kept smaller.
4) Be sure to ground the radio to vehicle body.
SEF437Y
SEF709Y
SEF708Y
PRECAUTIONSZD30DDTi
Precautions (Cont'd)
EC-11
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Engine Control Component Parts Location
MEC988D
ENGINE AND EMISSION CONTROL OVERALL SYSTEMZD30DDTi
EC-12
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MEC989D
ENGINE AND EMISSION CONTROL OVERALL SYSTEMZD30DDTi
Engine Control Component Parts Location
(Cont'd)EC-13
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MEC990D
ENGINE AND EMISSION CONTROL OVERALL SYSTEMZD30DDTi
Engine Control Component Parts Location
(Cont'd)EC-14
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