6. Before servicing the vehicle, protect fenders, upholstery andcarpeting with appropriate covers.
Take caution that keys, buckles or buttons on your person do
not scratch the paint.
7. Clean all disassembled parts in the designated liquid or solvent prior to inspection or assembly.
8. Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new ones.
9. Replace inner and outer races of tapered roller bearings and needle bearings as a set.
10. Arrange the disassembled parts in accordance with their assembled locations and sequence.
11. Do not touch the terminals of electrical components which use microcomputers (such as electronic control units).
Static electricity may damage internal electronic components.
12. After disconnecting vacuum or air hoses, attach a tag to indi- cate the proper connection.
13. Use only the lubricants specified in MA section.
14. Use approved bonding agent, sealants or their equivalents when required.
15. Use tools and recommended special tools where specified for safe and efficient service repairs.
16. When repairing the fuel, oil, water, vacuum or exhaust systems, check all affected lines for leaks.
17. Dispose of drained oil or the solvent used for cleaning parts in an appropriate manner.
Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
(Dual Air Bag System)
The Supplemental Restraint System ªAir Bagº and ªSeat Belt Pre-
tensionerº, used along with a seat belt, help to reduce the risk or
severity of injury to the driver and front passenger in a frontal col-
lision. The Supplemental Restraint System consists of air bag mod-
ules (located in the center of the steering wheel and on the instru-
ment panel on the passenger side), seat belt pre-tensioners, a
diagnosis sensor unit, warning lamp, wiring harness and spiral
cable.
WARNING:
ITo 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 performed by an authorized NISSAN
dealer.
I Improper maintenance, including incorrect removal and
installation of the SRS, can lead to personal injury caused
by unintentional activation of the system.
I Do not use electrical test equipment on any circuit related
to the SRS unless instructed to do so in this Service
Manual. SRS wiring harnesses are covered with yellow
SGI234
SGI646
PRECAUTIONS
GI-3
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Description
NumberItem Description
q1Power conditionI
This shows the condition when the system receives battery positive voltage (can
be operated).
q2Fusible link I
The double line shows that this is a fusible link.
I The open circle shows current flow in, and the shaded circle shows current flow
out.
q3Fusible link/fuse location I
This shows the location of the fusible link or fuse in the fusible link or fuse box.
For arrangement, refer to EL section (ªPOWER SUPPLY ROUTINGº).
q4Fuse I
The single line shows that this is a fuse.
I The open circle shows current flow in, and the shaded circle shows current flow
out.
q5Current rating IThis shows the current rating of the fusible link or fuse.
q6Connectors I
This shows that connector
E3is female and connectorM1is male.
I The G/R wire is located in the 1A terminal of both connectors.
I Terminal number with an alphabet (1A, 5B, etc.) indicates that the connector is
SMJ connector. Refer to GI-18.
q7Optional splice IThe open circle shows that the splice is optional depending on vehicle application.
q8Splice IThe shaded circle shows that the splice is always on the vehicle.
q9Page crossing I
This arrow shows that the circuit continues to an adjacent page.
I The A will match with the A on the preceding or next page.
q10Common connector I
The dotted lines between terminals show that these terminals are part of the same
connector.
q11Option abbreviation IThis shows that the circuit is optional depending on vehicle application.
q12Relay I
This shows an internal representation of the relay. For details, refer to EL section
(ªSTANDARDIZED RELAYº).
q13Connectors I
This shows that the connector is connected to the body or a terminal with bolt or
nut.
q14Wire color I
This shows a code for the color of the wire.
B = Black BR = Brown
W = White OR = Orange
R = Red P = Pink
G = Green PU = Purple
L = Blue GY = Gray
Y = Yellow SB = Sky Blue
LG = Light Green CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe
color as shown below:
Example: L/W = Blue with White Stripe
q15Option description IThis shows a description of the option abbreviation used on the page.
q16Switch I
This shows that continuity exists between terminals 1 and 2 when the switch is in
the A position. Continuity exists between terminals 1 and 3 when the switch is in
the B position.
q17Assembly parts I
Connector terminal in component shows that it is a harness incorporated assem-
bly.
q18Cell code I
This identifies each page of the wiring diagram by section, system and wiring dia-
gram page number.
HOW TO READ WIRING DIAGRAMS
GI-12
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Checking Body Corrosion
Visually check the body sheet metal panel for corrosion, paint damage (scratches, chipping, rubbing, etc.) or
damage to the anti-corrosion materials. In particular, check the following locations.
Hemmed portion
Hood front end, door lower end, trunk lid rear end, etc.
Panel joint
Side sill of rear fender and center pillar, rear wheel housing of rear fender, around strut lower in engine
compartment, etc.
Panel edge
Back door lid opening, sun roof opening, fender wheel-arch flange, fuel filler lid flange, around holes in panel,
etc.
Parts contact
Waist moulding, windshield moulding, bumper, etc.
Protectors
Damage or condition of mudguard, fender protector, chipping protector, etc.
Anti-corrosion materials
Damage or separation of anti-corrosion materials under the body.
Drain holes
Condition of drain holes at door and side sill.
When repairing corroded areas, refer to the Corrosion Repair Manual.
CHASSIS AND BODY MAINTENANCE
MA-47
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NVH Troubleshooting Chart Ð Engine Noise
Use the chart below to help you find the cause of the symptom.
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
Location ofnoise Type of
noise Operating condition of engine
Source of
noise Check item Reference
page
Before
warm-up After
warm-up When
starting When
idling When
racing While
driving
To p o f
engine
Rocker
cover
Cylinder
head Ticking or
clicking
C AÐA BÐ Tappet
noiseValve clearance MA section
(ªAdjusting
Intake &
Exhaust
Valve
Clearanceº,
ªENGINE
MAINTE-
NANCEº)
Rattle C A Ð A B C Camshaft
bearing
noiseCamshaft bushing clearance
Camshaft runout
EM-31, 31
Crankshaft
pulley
Cylinder
block (Side
of engine)
Oil pan Slap or
knock
ÐAÐB BÐ Piston pin
noisePiston and piston pin clear-
ance
Connecting rod bushing
clearance
EM-71, 73
Slap or rap A Ð Ð B B A Piston slap
noisePiston-to-bore clearance
Piston ring side clearance
Piston ring end gap
Connecting rod bend and
torsion EM-75, 72,
72, 73
Knock A B C B B B Connecting
rod bearing
noiseConnecting rod bushing
clearance (Small end)
Connecting rod bearing
clearance (Big end)
EM-73, 77
Knock A B Ð A B C Main bear-
ing noiseMain bearing oil clearance
Crankshaft runout
EM-78, 76
Front of
engine
Timing gear
cover Tapping or
ticking
AAÐBBB Timing gear
noiseTiming gear backlash EM-41
Front of
engine Squeaking
or fizzing
A BÐBÐC Other drive
belts (Stick-
ing or slip-
ping)Drive belts deflection
MA section
(ªChecking
Drive Beltsº,
ªENGINE
MAINTE-
NANCEº)
Creaking
ABABAB Other drive
belts (Slip-
ping)Idler pulley bearing operation
Squall
Creak ABÐBAB Water pump
bearing
noiseWater pump bearing opera-
tion LC section
(ªWater
Pump
Inspectionº,
ªENGINE
COOLING
SYSTEMº)
A: Closely related B: Related C: Sometimes related Ð: Not related
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGZD
EM-9
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Selection Procedure for Selective Part
Combination
LocationSelective part combination ItemMethod
Cylinder block - piston Piston and piston assembly
(Part No. is given to a piston and piston pin as a set.) Piston grade (Piston outer
diameter) Refer to ªSelective combination
chartº.
IIdentification grade stamped on each part represents initial
dimension of new part. This grade will not be applied to a
reused part.
I Measure correct dimensions of a reused or modified part, then
refer to ªSelective combination chartº in this manual to identify
the grade.
I Refer to the applicable pages for measurement method for
each part, standards for reuse, and selecting method for selec-
tive part combination.
Disassembly
1. Remove engine assembly from vehicle.
Refer to EM-63, ªENGINE REMOVALº.
2. Remove pilot bushing from flywheel using pilot bearing puller (SST), if necessary (M/T model).
3. Install engine to engine stand (SST).
1) Remove flywheel (M/T model) or drive plate (A/T model).
I Using ring gear stopper (SST), secure ring gear, and remove
mounting bolts.
CAUTION:
Do not disassemble flywheel.
I Flywheel has a two-piece structure. When being pressed
forward/backward, or twisted in rotating direction, transmission-
side mass will be moved with audible sound. This is not a
problem.
2) Remove pilot converter (A/T model) and rear plate.
SEM364G
YEM043
CYLINDER BLOCKZD
EM-67
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3) Using rod with outer diameter of 30 mm (1.18 in), press pistonpins out.
11. Remove lower cylinder block.
I The lower cylinder block is the lower part of the cylinder block,
which works as the main bearing cap (beam) and oil pan
mounting face.
1) Remove mounting bolts for engine sub-attachment shown by arrows in the figure.
2) Loosen and remove mounting bolts in the reverse order shown in the figure.
3) Insert flat-bladed screwdriver into 5 locations shown by arrows in the figure. Lift lower cylinder block evenly, and remove liquid
gasket.
CAUTION:
Prevent mating faces from being damaged.
4) When removing lower cylinder block, use slot to prevent dowel pin from interfering with engine sub-attachment.
I No part No. is given to lower cylinder block, because it is
machined with the cylinder block.
12. Remove crankshaft.
13. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
CAUTION:
Check mounting positions. Keep them to avoid confusion.
FEM090
FEM091
FEM092
FEM093
CYLINDER BLOCKZD
Disassembly (Cont'd)
EM-70
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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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