2001 NISSAN ALMERA N16 service indicator

ENGINE CONTROL SYSTEM
SECTION
EC
CONTENTS
QG
TROUBLE DIAGNOSIS - INDEX..................................10
Alphabetical & P No. Index for DTC .........................10
PRECAUTIONS.............................................................16
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER².............16
Precautions for On Board Diagnostic (OBD)
System of Engine and A/T.........................................16
Engine Fuel & Emission Control System ..................17
Wiring Diagrams and Trouble Diagnosis ...................19
PREPARATION.............................................................20
Special Service Tools ................................................20
Commercial Service Tools .........................................20
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.........................................................................21
Engine Control Component Parts Location ...............21
Circuit Diagram ..........................................................25
System Diagram ........................................................26
Vacuum Hose Drawing ..............................................27
System Chart .............................................................28
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION...............................................29
Multiport Fuel Injection (MFI) System .......................29
Electronic Ignition (EI) System ..................................31
Air Conditioning Cut Control ......................................32
Fuel Cut Control (at no load & high engine
speed) ........................................................................33
Evaporative Emission System ...................................33
Positive Crankcase Ventilation ..................................37
BASIC SERVICE PROCEDURE...................................38
Fuel Pressure Release ..............................................38
Fuel Pressure Check .................................................38
Fuel Pressure Regulator Check ................................39
Injector .......................................................................39
How to Check Idle Speed and Ignition Timing ..........41
Preparation ................................................................42
Inspection Procedure .................................................45
Idle Air Volume Learning ...........................................55ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................57
Introduction ................................................................57
Two Trip Detection Logic ...........................................57
Emission-related Diagnostic Information ...................58
NATS (Nissan Anti-theft System) ..............................72
Malfunction Indicator (MI) ..........................................72
OBD System Operation Chart (With Euro-OBD
Models Only)..............................................................76
CONSULT-II ...............................................................81
Generic Scan Tool (GST) ..........................................92
TROUBLE DIAGNOSIS - INTRODUCTION..................94
Introduction ................................................................94
Work Flow ..................................................................96
TROUBLE DIAGNOSIS - BASIC INSPECTION...........98
Basic Inspection.........................................................98
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION.............................................................122
DTC Inspection Priority Chart..................................122
Fail-safe Chart .........................................................123
Symptom Matrix Chart .............................................124
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................128
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................130
ECM Terminals and Reference Value .....................132
TROUBLE DIAGNOSIS - SPECIFICATION VALUE..140
Description ...............................................................140
Testing Condition .....................................................140
Inspection Procedure ...............................................140
Diagnostic Procedure ..............................................141
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT.....................................................................144
Description ...............................................................144
Diagnostic Procedure ..............................................144
TROUBLE DIAGNOSIS FOR POWER SUPPLY........145
Main Power Supply and Ground Circuit ..................145
DTC P0100 MASS AIR FLOW SENSOR (MAFS)......152
Component Description ...........................................152

YD
TROUBLE DIAGNOSIS - INDEX................................492
Alphabetical & P No. Index for DTC .......................492
PRECAUTIONS...........................................................494
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...........494
Engine Fuel & Emission Control System ................495
Precautions ..............................................................496
Wiring Diagrams and Trouble Diagnosis .................497
PREPARATION...........................................................498
Special Service Tools ..............................................498
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.......................................................................499
Engine Control Component Parts Location .............499
Circuit Diagram ........................................................502
System Diagram ......................................................503
System Chart ...........................................................504
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION.............................................505
Fuel Injection Control System .................................505
Fuel Injection Timing Control System......................506
Air Conditioning Cut Control ....................................507
Fuel Cut Control (at no load & high engine
speed) ......................................................................507
Crankcase Ventilation System .................................508
BASIC SERVICE PROCEDURE.................................509
Injection Tube and Injection Nozzle ........................509
Electronic Control Fuel Injection Pump ...................513
Fuel Filter .................................................................520
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION.............................................................522
DTC and MI Detection Logic ...................................522
Diagnostic Trouble Code (DTC) ..............................522
Malfunction Indicator (MI) ........................................523
CONSULT-II .............................................................527
TROUBLE DIAGNOSIS - INTRODUCTION................532
Introduction ..............................................................532
Work Flow ................................................................534
TROUBLE DIAGNOSIS - BASIC INSPECTION.........536
Basic Inspection.......................................................536
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION.............................................................541
Symptom Matrix Chart .............................................541
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................551
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................553
ECM Terminals and Reference Value .....................554
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT.....................................................................559
Description ...............................................................559
Diagnostic Procedure ..............................................559TROUBLE DIAGNOSIS FOR POWER SUPPLY........560
Main Power Supply and Ground Circuit ..................560
DTC P0100 MASS AIR FLOW SEN...........................566
Component Description ...........................................566
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................566
ECM Terminals and Reference Value .....................566
On Board Diagnosis Logic.......................................566
DTC Confirmation Procedure ..................................566
Wiring Diagram ........................................................568
Diagnostic Procedure ..............................................569
DTC P0115 COOLANT TEMP SEN............................572
Description ...............................................................572
On Board Diagnosis Logic.......................................572
DTC Confirmation Procedure ..................................572
Wiring Diagram ........................................................574
Diagnostic Procedure ..............................................575
DTC P0120 ACCEL POS SENSOR............................577
Description ...............................................................577
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................577
ECM Terminals and Reference Value .....................577
On Board Diagnosis Logic.......................................578
DTC Confirmation Procedure ..................................578
Wiring Diagram ........................................................579
Diagnostic Procedure ..............................................580
DTC P0335 CRANK POS SEN (TDC)........................587
Description ...............................................................587
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................587
ECM Terminals and Reference Value .....................587
On Board Diagnosis Logic.......................................587
DTC Confirmation Procedure ..................................588
Wiring Diagram ........................................................589
Diagnostic Procedure ..............................................590
DTC P0500 VEHICLE SPEED SEN............................593
Description ...............................................................593
ECM Terminals and Reference Value .....................593
On Board Diagnosis Logic.......................................593
Overall Function Check ...........................................593
Wiring Diagram ........................................................595
Diagnostic Procedure ..............................................596
DTC P0571 BRAKE SW..............................................597
Description ...............................................................597
ECM Terminals and Reference Value .....................597
On Board Diagnosis Logic.......................................597
DTC Confirmation Procedure ..................................597
Wiring Diagram ........................................................599
Diagnostic Procedure ..............................................600
DTC P1107 ECM 10....................................................604
Description ...............................................................604
On Board Diagnosis Logic.......................................604
CONTENTS(Cont'd)
EC-7

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NJEC0002The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to NISSAN MODEL N16 is as follows (The compo-
sition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnoses sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnoses sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof 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 should be per-
formed by an authorized NISSAN 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 RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harness can be identified by yellow harness connector.
Precautions for On Board Diagnostic (OBD)
System of Engine and A/T
NJEC0003The 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 ªOFFº and disconnect the negative battery terminal 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 EL section, ªDescriptionº, ªHARNESS CONNEC-
TORº.
+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 connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of fuel injection system, etc.
+Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission Control Module) before returning the vehicle to the customer.
PRECAUTIONSQG
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
EC-16

Inspection ProcedureNJEC0593
1 INSPECTION START
1. Visually check the following:
+Air cleaner clogging
+Hoses and ducts for leaks
+EGR valve operation
+Electrical connectors
+Gasket
+Throttle valve and throttle position sensor operation
2. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Ensure engine stays below 1,000 rpm.
SEF090Y
3. Open engine hood and run engine at about 2,000 rpm for about 2 minutes under no-load.
SEF977U
4. Make sure that no DTC is displayed with CONSULT-II or GST.
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding ªDiagnostic Procedureº.
©GO TO 3.
BASIC SERVICE PROCEDUREQG
Inspection Procedure
EC-45

26 CHECK ªCOº %
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
SEF090Y
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
SEF978U
3. Check ªCOº %.
Idle CO:3-11%
4.
Without CONSULT-II
After checking CO%,
a. Disconnect the resistor from terminals of engine coolant temperature sensor.
b. Connect engine coolant temperature sensor harness connector to engine coolant temperature sensor.
OK or NG
OK©GO TO 27.
NG©GO TO 28.
BASIC SERVICE PROCEDUREQG
Inspection Procedure (Cont'd)
EC-53

JEF351Y
2. Disconnect the fuel hoses from the fuel injection pump.
3. Disconnect the harness connector from the fuel injection
pump.
+Disconnect the connector by pulling the connector stopper
fully.
+When the stopper is fully pulled, the connector will be discon-
nected together. For installation, push the connector half way
first, then press the stopper until it locks, so that the connec-
tor is connected together.
4. Remove the fuel injection pump rear bracket.
JEF352Y
5. Remove the front chain case.
+Move the power steering fluid reservoir tank from the bracket.
+Loosen and remove the mounting bolts in the reverse order of
the numbers shown in the figure.
+As for bolts 6, 10, and 11, remove with rubber washer because
there is not enough space for removing only the bolts.
CAUTION:
To prevent foreign objects from getting in the engine, cover
the opening during the removal of the front chain case.
JEF353Y
6. Adjust the No. 1 cylinder to the top dead center position.
+Turn the crankshaft pulley clockwise, then align the alignment
mark (punched mark) of the camshaft sprocket to the position
shown in the figure.
+There is no indicator on the crankshaft pulley.
+It is not necessary to mark the secondary timing chain for
removal because it can be matched by the link color for instal-
lation. However, the alignment mark on the fuel injection pump
sprocket is difficult to see; mark it if necessary.
JEF354Y
7. Remove the chain tensioner.
a. Push the plunger of the chain tensioner, then fix it with a tool
such as a push pin.
JEF355Y
b. Using the hexagon wrench (face to face: 5 mm) (SST), remove
the mounting bolts, then remove the chain tensioner.
+A multi-purpose tool may also be used.
BASIC SERVICE PROCEDUREYD
Electronic Control Fuel Injection Pump (Cont'd)
EC-514

INPUT SHAFT BEARING ADJUSTING SHIMNJMT0029S05
Thickness mm (in) Part number*
0.40 (0.0157)
0.44 (0.0173)
0.48 (0.0189)
0.52 (0.0205)
0.56 (0.0220)
0.60 (0.0236)
0.64 (0.0252)
0.68 (0.0268)
0.72 (0.0283)
0.76 (0.0299)
0.80 (0.0315)
1.20 (0.0472)32225-08E00
32225-08E01
32225-08E02
32225-08E03
32225-08E04
32225-08E05
32225-08E06
32225-08E07
32225-08E08
32225-08E09
32225-08E10
32225-08E11
*: Always check with the Parts Department for the latest parts information.
TABLE FOR SELECTING INPUT SHAFT BEARING ADJUSTING SHIM(S)NJMT0029S06Unit: mm (in)
Dial indicator indication Suitable shim(s)
0.65 - 0.69 (0.0256 - 0.0272)
0.69 - 0.73 (0.0272 - 0.0287)
0.73 - 0.77 (0.0287 - 0.0303)
0.77 - 0.81 (0.0303 - 0.0319)
0.81 - 0.85 (0.0319 - 0.0335)
0.85 - 0.89 (0.0335 - 0.0350)
0.89 - 0.93 (0.0350 - 0.0366)
0.93 - 0.97 (0.0366 - 0.0382)
0.97 - 1.01 (0.0382 - 0.0398)
1.01 - 1.05 (0.0398 - 0.0413)
1.05 - 1.09 (0.0413 - 0.0429)
1.09 - 1.13 (0.0429 - 0.0445)
1.13 - 1.17 (0.0445 - 0.0461)
1.17 - 1.21 (0.0461 - 0.0476)
1.21 - 1.25 (0.0476 - 0.0492)
1.25 - 1.29 (0.0492 - 0.0508)
1.29 - 1.33 (0.0508 - 0.0524)
1.33 - 1.37 (0.0524 - 0.0539)
1.37 - 1.41 (0.0539 - 0.0555)
1.41 - 1.45 (0.0555 - 0.0571)
1.45 - 1.49 (0.0571 - 0.0587)
1.49 - 1.53 (0.0587 - 0.0602)
1.53 - 1.57 (0.0602 - 0.0618)
1.57 - 1.61 (0.0618 - 0.0634)
1.61 - 1.65 (0.0634 - 0.0650)
1.65 - 1.69 (0.0650 - 0.0665)0.64 (0.0252)
0.68 (0.0268)
0.72 (0.0283)
0.76 (0.0299)
0.80 (0.0315)
0.40 + 0.44 (0.0157 + 0.0173)
0.44 + 0.44 (0.0173 + 0.0173)
0.44 + 0.48 (0.0173 + 0.0189)
0.48 + 0.48 (0.0189 + 0.0189)
0.48 + 0.52 (0.0189 + 0.0205)
0.52 + 0.52 (0.0205 + 0.0205)
0.52 + 0.56 (0.0205 + 0.0220)
0.56 + 0.56 (0.0220 + 0.0220)
0.56 + 0.60 (0.0220 + 0.0236)
0.60 + 0.60 (0.0236 + 0.0236)
0.60 + 0.64 (0.0236 + 0.0252)
0.64 + 0.64 (0.0252 + 0.0252)
0.64 + 0.68 (0.0252 + 0.0268)
0.68 + 0.68 (0.0268 + 0.0268)
0.68 + 0.72 (0.0268 + 0.0283)
0.72 + 0.72 (0.0283 + 0.0283)
0.72 + 0.76 (0.0283 + 0.0299)
0.76 + 0.76 (0.0299 + 0.0299)
0.76 + 0.80 (0.0299 + 0.0315)
0.80 + 0.80 (0.0315 + 0.0315)
0.44 + 1.20 (0.0173 + 0.0472)
DIFFERENTIAL SIDE BEARING ADJUSTING SHIMNJMT0029S07
Thickness mm (in) Part number*
0.40 (0.0157)
0.44 (0.0173)
0.48 (0.0189)
0.52 (0.0205)
0.56 (0.0220)
0.60 (0.0236)
0.64 (0.0252)
0.68 (0.0268)
0.72 (0.0283)
0.76 (0.0299)
0.80 (0.0315)
0.84 (0.0331)
0.88 (0.0346)
1.20 (0.0472)38453-96E00
38453-96E01
38453-96E02
38453-96E03
38453-96E04
38453-96E05
38453-96E06
38453-96E07
38453-96E08
38453-96E09
38453-96E10
38453-96E11
38453-96E12
38453-96E13
*: Always check with the Parts Department for the latest parts information.
SERVICE DATA AND SPECIFICATIONS (SDS)RS5F50A
Available Shims (Cont'd)
MT-135

TABLE FOR SELECTING DIFFERENTIAL SIDE BEARING ADJUSTING SHIM(S)=NJMT0029S08Unit: mm (in)
Dial indicator deflection Suitable shim(s)
0.47 - 0.51 (0.0185 - 0.0201)
0.51 - 0.55 (0.0201 - 0.0217)
0.55 - 0.59 (0.0217 - 0.0232)
0.59 - 0.63 (0.0232 - 0.0248)
0.63 - 0.67 (0.0248 - 0.0264)
0.67 - 0.71 (0.0264 - 0.0280)
0.71 - 0.75 (0.0280 - 0.0295)
0.75 - 0.79 (0.0295 - 0.0311)
0.79 - 0.83 (0.0311 - 0.0327)
0.83 - 0.87 (0.0327 - 0.0343)
0.87 - 0.91 (0.0343 - 0.0358)
0.91 - 0.95 (0.0358 - 0.0374)
0.95 - 0.99 (0.0374 - 0.0390)
0.99 - 1.03 (0.0390 - 0.0406)
1.03 - 1.07 (0.0406 - 0.0421)
1.07 - 1.11 (0.0421 - 0.0437)
1.11 - 1.15 (0.0437 - 0.0453)
1.15 - 1.19 (0.0453 - 0.0469)
1.19 - 1.23 (0.0469 - 0.0484)
1.23 - 1.27 (0.0484 - 0.0500)
1.27 - 1.31 (0.0500 - 0.0516)0.44 + 0.48 (0.0173 + 0.0189)
0.48 + 0.48 (0.0189 + 0.0189)
0.48 + 0.52 (0.0189 + 0.0205)
0.52 + 0.52 (0.0205 + 0.0205)
0.52 + 0.56 (0.0205 + 0.0220)
0.56 + 0.56 (0.0220 + 0.0220)
0.56 + 0.60 (0.0220 + 0.0236)
0.60 + 0.60 (0.0236 + 0.0236)
0.60 + 0.64 (0.0236 + 0.0252)
0.64 + 0.64 (0.0252 + 0.0252)
0.64 + 0.68 (0.0252 + 0.0268)
0.68 + 0.68 (0.0268 + 0.0268)
0.68 + 0.72 (0.0268 + 0.0283)
0.72 + 0.72 (0.0283 + 0.0283)
0.72 + 0.76 (0.0283 + 0.0299)
0.76 + 0.76 (0.0299 + 0.0299)
0.76 + 0.80 (0.0299 + 0.0315)
0.80 + 0.80 (0.0315 + 0.0315)
0.44 + 1.20 (0.0173 + 0.0472)
0.48 + 1.20 (0.0189 + 0.0472)
0.52 + 1.20 (0.0205 + 0.0472)
SERVICE DATA AND SPECIFICATIONS (SDS)RS5F50A
Available Shims (Cont'd)
MT-136