Page 145 of 1226
INSPECTION
+Check release bearing to see that it rolls freely and is free from
noise, cracks, pitting or wear. Replace if necessary.
+Check release sleeve and withdrawal lever rubbing surface for
wear, rust or damage. Replace if necessary.
LUBRICATION
+Apply recommended grease to contact surface and rubbing
surface.
+Too much lubricant might damage clutch disc facing.
WATERPROOF
+Apply recommended sealant to contact surface of transmission
case dust cover and withdrawal lever, then install dust cover
clip.
Recommended sealant:
Nissan genuine part (KP115-00100) or equivalent.
SCL706
SCL697-A
CLUTCH RELEASE MECHANISM
CL-12
Page 146 of 1226
Clutch Disc
INSPECTION
Check clutch disc for wear of facing.
Wear limit of facing surface to rivet head:
0.3 mm (0.012 in)
+Check clutch disc for backlash of spline and runout of facing.
Maximum backlash of spline (at outer edge of disc):
Model 240
1.0 mm (0.039 in)
Runout limit:
Model 240
0.7 mm (0.028 in)
Distance of runout check point (from hub center):
Model 240
115.0 mm (4.53 in)
+Check clutch disc for burns, discoloration or oil or grease leak-
age. Replace if necessary.
INSTALLATION
+Apply recommended grease to contact surface of spline por-
tion.
Too much lubricant might cause clutch disc facing damage.
SCL778
SCL780
SCL779
CLUTCH DISC AND CLUTCH COVER
CL-13
Page 147 of 1226

Clutch Cover and Flywheel
INSPECTION
+Set Tool and check height and unevenness of diaphragm
spring.
Diaphragm spring height ``A'':
Model 240
37.5 - 39.5 mm (1.476 - 1.555 in)
+Check thrust rings for wear or damage by shaking cover
assembly up and down to listen for chattering noise, or lightly
hammering on rivets for a slightly cracked noise. Replace
clutch cover assembly if necessary.
+Check pressure plate and clutch disc contact surface for slight
burns or discoloration. Repair pressure plate with emery paper.
+Check pressure plate and clutch disc contact surface for defor-
mation or damage. Replace if necessary.
+Adjust unevenness of diaphragm spring with Tool.
Uneven limit:
0.7 mm (0.028 in)
+Check ¯ywheel and clutch disc contact surface for slight burns
or discoloration. Repair ¯ywheel with emery paper.
+Check ¯ywheel runout.
Maximum allowable runout:
Refer to EM section (``Inspection'', ``CYLINDER
BLOCK'').
SCL219-C
SCL466-A
SEM929A
CLUTCH DISC AND CLUTCH COVER
CL-14
Page 148 of 1226
INSTALLATION
Model 240
+Insert Tool into clutch disc hub while installing clutch cover and
disc.
+Be careful not to allow grease to contaminate clutch facing.
+Tighten bolts in numerical order, in two steps.
First step:
:10-20Nzm (1.0 - 2.0 kg-m,7-14ft-lb)
Final step:
:22-29Nzm (2.2 - 3.0 kg-m, 16 - 22 ft-lb)
SCL787
CLUTCH DISC AND CLUTCH COVER
Clutch Cover and Flywheel (Cont'd)
CL-15
Page 149 of 1226

General Speci®cations
CLUTCH CONTROL SYSTEM
Type of clutch control Hydraulic
CLUTCH MASTER CYLINDER (with clutch
damper)
Unit: mm (in)
Inner diameter 17.46 (11/16)
CLUTCH OPERATING CYLINDER
Unit: mm (in)
Inner diameter 20.64 (13/16)
CLUTCH BOOSTER
Unit: mm (in)
Type M45
Diaphragm diameter 114.3 (4.50)
Check valve type Built-in hose type
CLUTCH DISC
Model 240
Engine RD28ETi
Facing size
(Outer dia. x inner dia. x thick-
ness)
mm (in)240 x 160 x 3.5
(9.45 x 6.30 x 0.138)
Thickness of disc assembly with
load
mm (in)/N (kg, lb)7.7 - 8.1 (0.303 - 0.319)/
8,336 (850, 1,874)
CLUTCH COVER
Model 240
Engine RD28ETi
Destination Ð
Full load
N (kg, lb)5,835 - 6,620
(595 - 675, 1,312 - 1,488)
Inspection and Adjustment
CLUTCH PEDAL
Unit: mm (in)
Pedal height ``H*''195 - 205
(7.68 - 8.07)
Pedal free play ``A''
(at pedal pad)1.0 - 3.0 (0.039 - 0.118)
*: Measured from surface of melt sheet to pedal pad
CLUTCH BOOSTER
Unit: mm (in)
Output rod length ``A'' 1.30 - 1.55 (0.0512 - 0.0610)
Input rod length ``B'' 130 (5.12)
CLUTCH DISC
Unit: mm (in)
Model 240
Wear limit of facing sur-
face to rivet head0.3 (0.012)
Runout limit of facing 0.7 (0.028)
Distance of runout
check point (from
the hub center)115.0 (4.53)
Maximum backlash of
spline (at outer edge of
disc)1.0 (0.039)
CLUTCH COVER
Unit: mm (in)
Model 240
Diaphragm spring height ``A''37.5 - 39.5
(1.476 - 1.555)
Uneven limit of diaphragm
spring toe height0.7 (0.028)
SERVICE DATA AND SPECIFICATIONS (SDS)
CL-16
Page 150 of 1226

ENGINE CONTROL SYSTEMSECTION
EC
CONTENTS
DIAGNOSTIC TROUBLE CODE INDEX .........................1
Alphabetical & Numerical Index for DTC ....................1
PRECAUTIONS AND PREPARATION ............................2
Special Service Tools ..................................................2
Commercial Service Tool .............................................3
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''...............4
PRECAUTIONS AND PREPARATION ............................5
Engine Fuel & Emission Control System ....................5
Precautions ..................................................................6
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM ........................................................................\
...8
ECCS-D Component Parts Location ...........................8
Circuit Diagram .......................................................... 11
System Diagram ........................................................12
Vacuum Hose Drawing ..............................................13
System Chart .............................................................14
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION ...............................................15
Fuel Injection System ................................................15
Fuel Injection Timing System ....................................18
Air Conditioning Cut Control ......................................19
Fuel Cut Control (at no load & high engine
speed) ........................................................................\
20
CRANKCASE VENTILATION SYSTEM ........................21
Description .................................................................21
Inspection...................................................................21
INJECTION NOZZLE .....................................................22
Removal and Installation ...........................................22
Disassembly (No. 2 - 4 nozzles) ...............................22
Inspection (No. 2 - 4 nozzles) ...................................23
Cleaning (No. 2 - 4 nozzles) .....................................23
Assembly (No. 2 - 4 nozzles) ....................................24
Test and Adjustment ..................................................25
ELECTRONIC FUEL INJECTION PUMP ......................27
Removal .....................................................................27
Installation ..................................................................28
Disassembly and Assembly .......................................29
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION ...............................................................30
DTC and MIL Detection Logic ...................................30
Diagnostic Trouble Code (DTC) ................................30 Malfunction Indicator Lamp (MIL) ..............................31
CONSULT ..................................................................36
TROUBLE DIAGNOSIS Ð Introduction ......................42
Introduction ................................................................42
Diagnostic Worksheet ................................................43
TROUBLE DIAGNOSIS Ð Work Flow ........................44
Work Flow ..................................................................44
Description for Work Flow .........................................45
TROUBLE DIAGNOSIS Ð Basic Inspection ..............46
Basic Inspection.........................................................46
TROUBLE DIAGNOSIS Ð General Description ........48
Symptom Matrix Chart ...............................................48
CONSULT Reference Value in Data Monitor
Mode ........................................................................\
..51
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................\
..53
ECM Terminals and Reference Value .......................54
TROUBLEDIAGNOSISFORPOWERSUPPLY ..........63
MainPowerSupplyandGroundCircuit....................63
TROUBLE DIAGNOSIS FOR ``CAM POS SEN
(PUMP)''(DTC11) .........................................................69
CamshaftPositionSensor(CMPS)(PUMP).............69
TROUBLEDIAGNOSISFOR``MASSAIRFLOW
SEN''(DTC12) ..............................................................74
MassAirFlowSensor(MAFS)..................................74
TROUBLEDIAGNOSISFOR``COOLANTTEMP
SEN''(DTC13) ..............................................................79
EngineCoolantTemperature(ECT)Sensor.............79
TROUBLEDIAGNOSISFOR``VEHICLESPEED
SEN''(DTC14) ..............................................................83
VehicleSpeedSensor(VSS)....................................83
TROUBLEDIAGNOSISFOR``CONTSLEEVPOS
SEN''(DTC15) ..............................................................87
ControlSleevePositionSensor(CSPS)...................87
TROUBLEDIAGNOSISFOR``ADJUST
RESISTOR''(DTC17) ...................................................92
AdjustmentResistor...................................................92
TROUBLEDIAGNOSISFOR``F/INJF/B2''
(DTC18),``F/INJF/B''(DTC22),``ELECTRIC
GOV''(DTC25) ..............................................................96
ElectricGovernor.......................................................96
EC
Page 151 of 1226

TROUBLEDIAGNOSISFOR``F/INJTIMGF/B''
(DTC21).......................................................................101
InjectionTimingControlValve.................................101
TROUBLEDIAGNOSISFOR``ACCELPOSSW
(F/C)''(DTC23) ...........................................................106
AcceleratorSwitch(F/C)..........................................106
TROUBLEDIAGNOSISFOR``ECM1''(DTC27),
``ECM2''(DTC31) .......................................................111
EngineControlModule(ECM)-ECCS-DControl
Module.....................................................................111
TROUBLEDIAGNOSISFOR``OVERHEAT''
(DTC28) .......................................................................113
CoolingFan(Overheat)...........................................113
TROUBLEDIAGNOSISFOR``I/CINT/ATEMP
SEN''(DTC33) ............................................................122
ChargeAirTemperatureSensor..............................122
TROUBLEDIAGNOSISFOR``NEEDLELIFT
SEN''(DTC34) ............................................................126
NeedleLiftSensor(NLS)........................................126
TROUBLE DIAGNOSIS FOR ``FUEL CUT S/V 1''
(DTC 36), ``FCV SHORT'' (DTC 37), ``FUEL CUT
S/V2''(DTC38) ...........................................................130
FuelCutSolenoidValve..........................................130
TROUBLE DIAGNOSIS FOR ``FUEL TEMP
SENSOR''(DTC42) ....................................................135
FuelTemperatureSensor(FTS)..............................135 TROUBLE DIAGNOSIS FOR ``ACCEL POS
SENSOR''(DTC43)
....................................................139
AcceleratorPositionSensor....................................139
TROUBLE DIAGNOSIS FOR ``CRANK POS SEN
(TDC)''(DTC47) ..........................................................144
CrankshaftPositionSensor(TDC)..........................144
TROUBLEDIAGNOSISFOR``GOVCUT
CIRCUIT''(DTC48) .....................................................149
GovernorCutCircuit................................................149
TROUBLEDIAGNOSESFORNON-DETECTABLE
ITEMS ........................................................................\
...151
GlowControlSystem...............................................151
EGRC-SolenoidValveA,BandThrottleControl
SolenoidValve.........................................................156
StartSignal..............................................................163
AcceleratorPositionSwitch.....................................165
Park/NeutralPositionSwitch...................................170
A/TControl...............................................................175
ChargeAirCoolerFanControl................................178
HeatUpSwitch........................................................183
AirConditionerControl............................................187
MIL&DataLinkConnectors...................................188
SERVICEDATAANDSPECIFICATIONS(SDS) ........189
GeneralSpeci®cations.............................................189
InjectionNozzle.......................................................189
InspectionandAdjustment......................................189
When you read wiring diagrams:
+ Read GI section, ``HOW TO READ WIRING DIAGRAMS''.
+ See EL section, ``POWER SUPPLY ROUTING'' for power distribution circuit.
When you perform trouble diagnoses, read GI section, ``HOW TO FOLLOW FLOW CHART IN
TROUBLE DIAGNOSES'' and ``HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL
INCIDENT''.
Page 152 of 1226

Alphabetical & Numerical Index for DTC
ALPHABETICAL INDEX FOR DTC
X: Applicable
Ð: Not applicable
Items
(CONSULT screen terms) DTCMIL
illumination Reference
page
ACCEL POS SENSOR 43 X EC-139
ACCEL POS SW (F/C) 23 X EC-106
ADJUST RESISTOR 17 Ð EC-92
CAM POS SEN (PUMP) 11 X EC-69
CONT SLEEV POS SEN 15 X EC-87
COOLANT TEMP SEN 13 X EC-79
CRANK POS SEN (TDC) 47 X EC-144
ECM 1 27 X EC-111
ECM 2 31 X EC-111
ELECTRIC GOV 25 X EC-96
FCV SHORT 37 X EC-130
FUEL CUT S/V 1 36 X EC-130
FUEL CUT S/V 2 38 X EC-130
FUEL TEMP SENSOR 42 Ð EC-135
F/INJ F/B 22 X EC-96
F/INJ F/B 2 18 X EC-96
F/INJ TIMG F/B 21 Ð EC-101
GOV CUT CIRCUIT 48 X EC-149
I/C INT/A TEMP SEN 33 *1 Ð EC-122
MAS AIR FLOW SEN 12 Ð EC-74
NATS MALFUNCTION 141 - 148 X EL section*
NEEDLE LIFT SEN 34 Ð EC-126
NO SELF DIAGNOSTIC
FAILURE INDICATED 55 Ð Ð
OVER HEAT 28 X EC-113
VEHICLE SPEED SEN 14 Ð EC-83
NUMERICAL INDEX FOR DTC
X: Applicable
Ð: Not applicable
DTC MIL
illumination Items
(CONSULT screen terms) Reference
page
11 X CAM POS SEN (PUMP) EC-69
12 Ð MAS AIR FLOW SEN EC-74
13 X COOLANT TEMP SEN EC-79
14 Ð VEHICLE SPEED SEN EC-83
15 X CONT SLEEV POS SEN EC-87
17 Ð ADJUST RESISTOR EC-92
18 X F/INJ F/B 2 EC-96
21 Ð F/INJ TIMG F/B EC-101
22 X F/INJ F/B EC-96
23 X ACCEL POS SW (F/C) EC-106
25 X ELECTRIC GOV EC-96
27 X ECM 1 EC-111
28 X OVER HEAT EC-113
31 X ECM 2 EC-111
33 *1 Ð I/C INT/A TEMP SEN EC-122 34 Ð NEEDLE LIFT SEN EC-126
36 X FUEL CUT S/V 1 EC-130
37 X FCV SHORT EC-130
38 X FUEL CUT S/V 2 EC-130
42 Ð FUEL TEMP SENSOR EC-135
43 X ACCEL POS SENSOR EC-139
47 X CRANK POS SEN (TDC) EC-144
48 X GOV CUT CIRCUIT EC-149
55 Ð NO SELF DIAGNOSTIC
FAILURE INDICATED Ð
141 - 148 X NATS MALFUNCTION EL section*2
*1: When nothing is displayed or the meaningless symbol is displayed in the ``Self-diag result'' mode with CONSULT, perform ``Diagnostic Test Mode II (Self-diagnostic results)'' with ECM. Refer to EC-32.
*2: Refer to ``NATS (Nissan Anti-Theft System)'' in EL section.
DIAGNOSTIC TROUBLE CODE INDEX
EC-1