2002 NISSAN TERRANO check engine

Adjusting Accelerator Cable
q1Pedal bracket
q
2Accelerator switchq
3Accelerator position sensor
q
4Accelerator cableq
5Return spring
q
6Accelerator pedal
INSPECTION AFTER INSTALLATION
ICheck if accelerator pedal moves smoothly within its range.
ICheck if accelerator pedal returns securely to its original position.
IPerform ªAccelerator Pedal Released Position Learningº when removing the accelerator pedal position
sensor harness connector. Refer to ªBASIC SERVICE PROCEDUREº in EC section for instructions.
IIf MI illuminates after engine has started, refer to ªON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONº
in EC section for instructions.
NFE032
ACCELERATOR CONTROL SYSTEMTD27Ti
FE-5

WARNING:
When replacing fuel line parts, be sure to observe the following:
IDisplay a ªCAUTION:INFLAMMABLEº sign in workshop.
IBe sure to furnish workshop with a CO
2fire extinguisher service.
IDo not smoke while servicing fuel system. Keep open flames and sparks away from work area.
IBe sure to disconnect battery ground cable before conducting operations.
IPour drained fuel into an explosion-proof container, then ensure container lid is installed securely.
CAUTION:
IFor ECM models, release fuel pressure from fuel line. Refer to EC section (ªFuel Pressure Releaseº,
ªBASIC SERVICE PROCEDUREº).
IDo not disconnect any fuel line unless absolutely necessary.
IPlug hose and pipe openings to prevent entry of dust or dirt.
IAlways replace top lid seal and hose clamps with new ones.
IDo not kink or twist hoses and tubes during installation.
IDo not tighten hose clamps excessively because this could cause damage to the hose.
IEnsure fuel check valve is installed in the correct orientation.
IRefer to EC section (ªFUEL CHECK VALVEº, ªEVAPORATIVE EMISSION SYSTEMº).
IAfter installation, run engine and check for fuel leaks at connections.
Fuel Pump and Gauge
REMOVAL
Petrol engine
1. Release fuel pressure from fuel line.
Refer to EC section (ªFuel Pressure Releaseº, ªBASIC SER-
VICE PROCEDUREº).
2. Remove inspection hole cover located under the luggage com-
partment carpet.
3. Remove fuel filler lid.
4. Disconnect fuel outlet, return tube and connectors.
CAUTION:
Mark the fuel tubes to ensure correct position during installa-
tion.
5. Remove the fuel gauge assembly and disconnect tubes and
connector.
EFE016
EFE017
EFE018
FUEL SYSTEMTD27Ti
FE-7

CAUTION:
IBe careful not to drop or damage catalytic converter.
INever wet catalytic converter with water, oil, etc.
IAlways replace exhaust gaskets with new ones when reas-
sembling.
If gasket is left on flange surface, scrape off complete as
shown at left.
IWith engine running, check all tube connections for
exhaust gas leaks, and entire system for unusual noises.
IAfter installation, but before fully tightening exhaust joints,
check to ensure that mounting brackets and mounting
insulators are free from undue stress. If any of the above
parts are not installed properly, excessive noise or vibra-
tion may be transmitted to the vehicle body.
SFE180A
EXHAUST SYSTEMTD27Ti
FE-10

GENERAL INFORMATION
SECTION
GI
CONTENTS
PRECAUTIONS...............................................................2
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²
(Dual Air Bag System) .................................................3
Precautions for NATS ..................................................4
Precautions for Multiport Fuel Injection System
or Engine Control System ...........................................5
Precautions for Catalyst ..............................................5
Precautions for Turbocharger ......................................5
Precautions for Fuel ....................................................6
Precautions for Engine Oils .........................................6
HOW TO USE THIS MANUAL........................................8
HOW TO READ WIRING DIAGRAMS..........................10
Sample/Wiring Diagram - EXAMPL - ........................10
Description .................................................................12
HOW TO CHECK TERMINAL.......................................19
How to Probe Connectors .........................................19
How to Check Enlarged Contact Spring of
Terminal .....................................................................20
Waterproof Connector Inspection ..............................21
Terminal Lock Inspection ...........................................21
HOW TO PERFORM EFFICIENT DIAGNOSIS FOR
AN ELECTRICAL INCIDENT........................................22Work Flow ..................................................................22
Incident Simulation Tests ...........................................23
HOW TO FOLLOW FLOW CHART IN TROUBLE
DIAGNOSES..................................................................25
CONSULT-II CHECKING SYSTEM...............................26
General ......................................................................26
Function and System Application ..............................26
Nickel Metal Hydride Battery Replacement...............27
Checking Equipment..................................................27
IDENTIFICATION INFORMATION.................................28
Model Variation ..........................................................28
Identification Number .................................................29
Dimensions ................................................................31
Wheels and Tires .......................................................31
LIFTING POINTS AND TOW TRUCK TOWING...........32
Garage Jack and Safety Stand .................................32
Screw Jack ................................................................32
4-pole Lift ...................................................................33
Tow Truck Towing ......................................................33
ISO 15031-2 TERMINOLOGY LIST..............................35
ISO 15031-2 Terminology List ...................................35
TIGHTENING TORQUE OF STANDARD BOLTS........38

Precautions for Multiport Fuel Injection System
or Engine Control System
1. Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM (Engine Control
Module):
Turn ignition switch to ªOFFº position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
2. Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure to eliminate danger.
3. Be careful not to jar components such as control unit and air
flow meter.
Precautions for Catalyst
If a large amount of unburned fuel enters the converter, the con-
verter temperature will rise to excessively high values. To prevent
this, follow the procedure below:
1. Use unleaded gasoline only. Leaded gasoline will seriously
damage the catalytic converter.
2. When checking for ignition spark or measuring engine
compression, perform tests quickly and only when necessary.
3. Do not run engine when the fuel tank level is low, as a result
the engine may misfire causing damage to the converter.
4. Do not place the vehicle on inflammable material. Keep inflam-
mable material off the exhaust pipe.
Precautions for Turbocharger
The turbocharger turbine revolves at extremely high speeds and
becomes very hot. Therefore, it is essential to maintain a clean
supply of oil flowing through the turbocharger and to follow all
required maintenance instructions and operating procedures.
For proper operation of the system, follow the procedure below:
1. Always use the recommended oil. Follow the instructions for
proper time to change the oil and proper oil level.
2. Avoid accelerating engine to a high rpm immediately after start-
ing.
3. If engine had been operating at high rpm for an extended period
of time, let it idle for a few minutes prior to shutting it off.
SGI787
SGI290
SGI292
PRECAUTIONS
GI-5

Precautions for Fuel
DIESEL ENGINE*:
Diesel fuel of at least 50 cetane for ZD30DDTi engine.
* If two types of diesel fuel are available, use summer or winter
fuel properly according to the following temperature conditions.
IAbove þ7ÉC (20ÉF) ... Summer type diesel fuel.
IBelow þ7ÉC (20ÉF) ... Winter type diesel fuel.
CAUTION:
IDo not use home heating oil, gasoline, or other alternate
fuels in your diesel engine. The use of those can cause
engine damage.
IDo not use summer fuel at temperature below þ7ÉC (20ÉF).
The cold temperature will cause wax to form in the fuel. As
a result, it may prevent the engine from running smoothly.
IDo not add gasoline or other alternate fuels to diesel fuel.
Precautions for Engine Oils
Prolonged and repeated contact with mineral oil will result in the
removal of natural fats from the skin, leading to dryness, irritation
and dermatitis. In addition, used engine oil contains potentially
harmful contaminants which may cause skin cancer. Adequate
means of skin protection and washing facilities must be provided.
HEALTH PROTECTION PRECAUTIONS
1. Avoid prolonged and repeated contact with oils, particularly
used engine oils.
2. Wear protective clothing, including impervious gloves where
practicable.
3. Do not put oily rags in pockets.
4. Avoid contaminating clothes, particularly underwear, with oil.
5. Heavily soiled clothing and oil-impregnated footwear should not
be worn. Overalls must be cleaned regularly.
6. First Aid treatment should be obtained immediately for open
cuts and wounds.
7. Use barrier creams, applying them before each work period, to
help the removal of oil from the skin.
8. Wash with soap and water to ensure all oil is removed (skin
cleansers and nail brushes will help). Preparations containing
lanolin replace the natural skin oils which have been removed.
9. Do not use petrol, kerosine, diesel fuel, gas oil, thinners or sol-
vents for cleaning skin.
10. If skin disorders develop, obtain medical advice without delay.
11. Where practicable, degrease components prior to handling.
12. Where there is a risk of eye contact, eye protection should be
worn, for example, chemical goggles or face shields; in addition
an eye wash facility should be provided.
(For the United Kingdom, see also HSE Cautionary Notice SHW
397 ªEffects of Mineral Oil on the Skinº.)
ENVIRONMENTAL PROTECTION PRECAUTIONS
Burning used engine oil in small space heaters or boilers can be
recommended only for units of approved design. The heating sys-
tem must meet the requirements of HM Inspectorate of Pollution for
small burners of less than 0.4 MW. If in doubt check with the
appropriate local authority and/or manufacturer of the approved
appliance.
PRECAUTIONS
GI-6

7. The followingSYMBOLS AND ABBREVIATIONSare used:
,: Tightening torque
: Should be lubricated with grease.
Unless otherwise indicated, use rec-
ommended multi-purpose grease.
: Should be lubricated with oil.
: Sealing point
: Checking point
: Always replace after every disassem-
bly.
L.H., R.H.: Left-Hand, Right-Hand
FR, RR : Front, Rear
2WD : 2-Wheel Drive
4WD : 4-Wheel Drive
qP: Apply petroleum jelly.
: Apply A.T.F.
A.T.F. : Automatic Transmission Fluid
H: Select with proper thickness.
I: Adjustment is required.
M/T : Manual Transaxle/Transmission
A/C : Air Conditioner
P/S : Power Steering
S.S.T. : Special Service Tools
S.D.S. : Service Data and Specifications
SAE : Society of Automotive Engineers, Inc.
L.H.D. : Left-Hand Drive
R.H.D. : Right-Hand Drive
8. TheUNITSgiven in this manual are primarily expressed as the SI UNIT (International System of Unit),
and alternatively expressed in the metric system and in the yard/pound system.
ªExampleº
Tightening torque:
59-78N×m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)
9.TROUBLE DIAGNOSESare included in sections dealing with complicated components.
10.SERVICE DATA AND SPECIFICATIONSare contained at the end of each section for quick reference of
data.
11. The captionsWARNINGandCAUTIONwarn you of steps that must be followed to prevent personal injury
and/or damage to some part of the vehicle.
IWARNINGindicates the possibility of personal injury if instructions are not followed.
ICAUTIONindicates the possibility of component damage if instructions are not followed.
IBOLD TYPED STATEMENTSexceptWARNINGandCAUTIONgive you helpful information.
HOW TO USE THIS MANUAL
GI-9

Work Flow
STEP DESCRIPTION
STEP 1 Get detailed information about the conditions and the environment when the incident occurred.
The following are key pieces of information required to make a good analysis:
WHATVehicle Model, Engine, Transmission and the System (i.e. Radio).
WHENDate, Time of Day, Weather Conditions, Frequency.
WHERERoad Conditions, Altitude and Traffic Situation.
HOWSystem Symptoms, Operating Conditions (Other Components Interaction).
Service History and if any After Market Accessories have been installed.
STEP 2 Operate the system, road test if necessary.
Verify the parameter of the incident.
If the problem cannot be duplicated, refer to ªIncident Simulation Testsº next page.
STEP 3 Get the proper diagnosis materials together including:
POWER SUPPLY ROUTING
System Operation Descriptions
Applicable Service Manual Sections
Check for any Service Bulletin.
Identify where to begin diagnosis based upon your knowledge of the system operation and the customer comments.
STEP 4 Inspect the system for mechanical binding, loose connectors or wiring damage.
Determine which circuits and components are involved and diagnose using the Power Supply Routing and Harness
Layouts.
STEP 5 Repair or replace the incident circuit or component.
STEP 6 Operate the system in all modes. Verify the system works properly under all conditions. Make sure you have not inad-
vertently created a new incident during your diagnosis or repair steps.
SGI838
HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT
GI-22