Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Primera 2000.2005 Approved Nissan Primera 2000 ec_cd20
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ENGINE CONTROL SYSTEM
SECTION EC
EC
CONTENTS
CD20T ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION ......................................................... 25
PRECAUTIONS AND PREPARATION ..................... 3
DTC and MI Detection Logic ............................... 25
Special Service Tools ............................................ 3
Diagnostic Trouble Code (DTC) .......................... 25
Engine Fuel & Emission Control System .............. 4
Malfunction Indicator (MI) .................................... 26
Precautions ............................................................ 5
CONSULT-II......................................................... 30
ENGINE AND EMISSION CONTROL OVERALL
TROUBLE DIAGNOSIS -- Introduction................ 36
SYSTEM..................................................................... 7
Introduction .......................................................... 36
Engine Control Module Component Parts
Diagnostic Worksheet .......................................... 37
Location.................................................................. 7
TROUBLE DIAGNOSIS -- Work Flow .................. 38
Circuit Diagram ...................................................... 9
Work Flow ............................................................ 38
System Diagram .................................................. 10
Description for Work Flow ................................... 39
Vacuum Hose Drawing ........................................ 11
TROUBLE DIAGNOSIS -- Basic Inspection ........ 40
System Chart ....................................................... 12
Basic Inspection................................................... 40
ENGINE AND EMISSION BASIC CONTROL
TROUBLE DIAGNOSIS -- General Description .. 42
SYSTEM DESCRIPTION ......................................... 13
Diagnostic Trouble Code (DTC) Chart ................ 42
Glow Control System ........................................... 13
Symptom Matrix Chart ......................................... 50
Fuel Injection System .......................................... 13
CONSULT-II Reference Value in Data Monitor
Fuel Injection Timing System .............................. 16
Mode .................................................................... 53
Air Conditioning Cut Control ................................ 18
Major Sensor Reference Graph in Data
Cooling Fan Control............................................. 18
Monitor Mode ....................................................... 54
CRANKCASE VENTILATION SYSTEM ................. 19
ECM Terminals and Reference Value................. 55
Description ........................................................... 19
TROUBLE DIAGNOSIS FOR POWER SUPPLY.... 62
Blow-by Control Valve ......................................... 19
Main Power Supply and Ground Circuit .............. 62
Ventilation Hose................................................... 19
TROUBLE DIAGNOSIS FOR DTC 12 .................... 65
INJECTION NOZZLE............................................... 20
Mass Air Flow Sensor (MAFS) ............................ 65
Removal and Installation ..................................... 20
TROUBLE DIAGNOSIS FOR DTC 13 .................... 69
Test and Adjustment............................................ 20
Engine Coolant Temperature (ECT) Sensor ....... 69
ELECTRONIC FUEL INJECTION PUMP................ 22
TROUBLE DIAGNOSIS FOR DTC 14 .................... 73
Removal ............................................................... 22
Vehicle Speed Sensor (VSS) .............................. 73
Installation ............................................................ 23
TROUBLE DIAGNOSIS FOR DTC 15 .................... 76
Disassembly and Assembly................................. 24
Control Sleeve Position Sensor (CSPS) ............. 76
TROUBLE DIAGNOSIS FOR DTC 18 .................... 80 TROUBLE DIAGNOSES FOR DTC 83, 98........... 123
Electric Governor ................................................. 80 Glow Control System ......................................... 123
TROUBLE DIAGNOSIS FOR DTC 21 .................... 85 TROUBLE DIAGNOSES FOR DTC 85................. 131
Injection Timing Control Valve............................. 85 Air Conditioner Cut Control................................ 131
TROUBLE DIAGNOSIS FOR DTC 31, 82, 84, TROUBLE DIAGNOSES FOR DTC 86................. 134
91, 93 ....................................................................... 90 EGRC-Solenoid Valve ....................................... 134
Engine Control Module (ECM)............................. 90 TROUBLE DIAGNOSES FOR DTC 87................. 141
TROUBLE DIAGNOSIS FOR DTC 28 .................... 91 Brake Switch ...................................................... 141
Cooling Fan (Overheat) ....................................... 91 TROUBLE DIAGNOSES FOR DTC 92................. 145
TROUBLE DIAGNOSIS FOR DTC 34 .................. 101 ECCS-D Relay ................................................... 145
Needle Lift Sensor (NLS)................................... 101 TROUBLE DIAGNOSES FOR DTC 97................. 146
TROUBLE DIAGNOSIS FOR DTC 36 .................. 104 MI & Data Link Connectors ............................... 146
Fuel Cut Solenoid Valve .................................... 104 TROUBLE DIAGNOSES FOR
TROUBLE DIAGNOSIS FOR DTC 42 .................. 108 NON-DETECTABLE ITEMS .................................. 149
Fuel Temperature Sensor (FTS) ....................... 108 Start Signal ........................................................ 149
TROUBLE DIAGNOSIS FOR DTC 43 .................. 112 SERVICE DATA AND SPECIFICATIONS (SDS) . 151
Accelerator Position Sensor & Switch ............... 112 General Specifications ....................................... 151
TROUBLE DIAGNOSIS FOR DTC 47 .................. 119 Injection Nozzle.................................................. 151
Crankshaft Position Sensor (TDC) .................... 119 Inspection and Adjustment ................................ 151
When you read wiring diagrams:
q Read GI section, ``HOW TO READ WIRING DIAGRAMS''.
q See EL section, ``POWER SUPPLY ROUTING'' for power distribution circuit.
q See EL section for NATS information and wiring diagram.
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''.
For clarification of system component abbreviations and terminology read GI section
``SAE J1930 TERMINOLOGY LIST''.
EC-CD-2
PRECAUTIONS AND PREPARATION CD20T
Special Service Tools
X: Applicable
--: Not applicable
Tool number
Description
Tool name
KV11289004
Nozzle cleaning kit
V KV11290012
1
Box
V KV11290110
2
Brush
V KV11290122
3
Nozzle oil sump
scraper
V KV11290140
4
X
Nozzle needle tip
cleaner
V KV11290150
5
Nozzle seat scraper
V KV11290210
6
Nozzle holder
V KV11290220
7
Nozzle hole cleaning
needle
NT296
KV11292010
Nozzle centering device
X
NT293
KV11100300
No. 2-4 injection nozzle
holder socket
X
NT563
KV119E0030
No. 1 injection nozzle
holder socket
X
NT648
EC-CD-3
PRECAUTIONS AND PREPARATION CD20T
Engine Fuel & Emission Control System
ECM (ECCS-D control module) WIRELESS EQUIPMENT
q Do not disassemble ECM. q When installing C.B. ham radio or a mobile
q If a battery terminal is disconnected, the memory phone, be sure to observe the following as it
will return to the ECM value. may adversely affect electronic control
The ECM will now start to self-control at its initial systems depending on its installation location.
value. Engine operation can vary slightly when 1) Keep the antenna as far as possible away
the terminal is disconnected. However, this is not from the ECM.
an indication of a problem. Do not replace parts 2) Keep the antenna feeder line more than
because of a slight variation. 20 cm (7.9 in) away from the harness of
q When ECM is removed for inspection, make sure electronic controls.
to ground the ECM mainframe. Do not let them run parallel for a long
distance.
3) Adjust the antenna and feeder line so that the
BATTERY standing-wave ratio can be kept small.
q Always use a 12 volt battery as power 4) Be sure to ground the radio to vehicle body.
source.
q Do not attempt to disconnect battery cables
while engine is running.
ECM mainframe
ELECTRONIC FUEL INJECTOR PUMP
q Do not disconnect pump harness connectors
with engine running.
q Do not disassemble or adjust electronic fuel
injection pump, except for the following
parts.
Camshaft position sensor (pump)
Injection timing control valve
Fuel cut solenoid valve
ECM PARTS HANDLING
q Handle mass air flow sensor carefully to avoid
damage.
q Do not disassemble mass air flow sensor.
q Do not clean mass air flow sensor with any type
of detergent.
q Do not disassemble No. 1 injection nozzle (built- WHEN STARTING ECM HARNESS HANDLING
in needle lift sensor). q Do not depress accelerator pedal when q Connect ECM harness connectors securely.
q Even a slight leak in the air intake system can starting. A poor connection can cause an extremely
cause serious problems. q Immediately after starting, do not rev up high (surge) voltage to develop in coil and
q Do not shock or jar the camshaft position sensor engine unnecessarily. condenser, thus resulting in damage to ICs.
(TDC). q Do not rev up engine just prior to q Keep ECM harness at least 10 cm (3.9 in)
shutdown. away from adjacent harnesses, to prevent an
ECM system malfunction due to receiving
external noise, degraded operation of ICs,
etc.
q Keep ECM parts and harnesses dry.
q Before removing parts, turn off ignition
switch and then disconnect battery ground
cable.
NEF390
EC-CD-4
PRECAUTIONS AND PREPARATION CD20T
Precautions
q Before connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect
negative battery terminal. Failure to do so may damage
the ECM because battery voltage is applied to ECM even
if ignition switch is turned off.
SEF289H
q When connecting ECM harness connector, open the
ECM
ports on harness connector, then meet the ports with the
pins on the ECM as shown. Push slider on harness until
it stops.
Loosen
Tighten
slider ECM harness
connector
NEF754
q When connecting or disconnecting pin connectors into
ECM
or from ECM, take care not to damage pin terminals
(bend or break).
Pins
Make sure that there are not any bends or breaks on
ECM pin terminal, when connecting pin connectors.
Ports
PULL
to open
ports
Slider
Harness connector NEF755
q Before replacing ECM, perform Terminals and Reference
Perform ECM Value inspection and make sure ECM functions properly.
input/output signal
inspection before Refer to EC-CD-55.
replacement.
MEF040D
q If MI illuminates or blinks irregularly during engine
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.
q After performing each TROUBLE DIAGNOSIS, perform
``OVERALL FUNCTION CHECK'' or ``DTC (Diagnostic
Trouble Code) CONFIRMATION PROCEDURE''.
The DTC should not be displayed in the ``DTC CONFIR-
MATION PROCEDURE'' if the repair is completed. The
``OVERALL FUNCTION CHECK'' should be a good result
SAT652J if the repair is completed.
EC-CD-5
PRECAUTIONS AND PREPARATION CD20T
Precautions (Cont'd)
q When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Battery Accidental contact of probes will cause a short circuit
voltage and damage the ECM power transistor.
Harness connector
Short
for solenoid valve ECM
NG
Solenoid valve
OK
Circuit tester
SEF348N
EC-CD-6
ENGINE AND EMISSION CONTROL OVERALL SYSTEM CD20T
Engine Control Module Component Parts
Location
EGRC - solenoid valve
Fuel cut solenoid valve
Needle lift sensor (built - in No. 1 nozzle) Vacuum pump
Electric fuel injection pump
Fuel filter
Engine coolant temperature sensor
Mass air flow sensor
Glow relay
Cooling fan relay
EGR valve
Cooling fan motors
Crankshaft position sensor (TDC)
Glow plugs
NEF767
EC-CD-7
ENGINE AND EMISSION CONTROL OVERALL SYSTEM CD20T
Engine Control Module Component Parts
Location (Cont'd)
Fuel cut solenoid valve
Electric governor.
Control sleeve position sensor
and fuel temperature sensor
(built-in)
Ejection timing control valve
Accelerator position sensor
Accelerator pedal
Crank pulley
.
Crankshaft position
sensor (TDC)
ECM
.
Accelerator pedal (LHD)
NEF768
EC-CD-8
DATA LINK
CONNECTOR
FUSIBLE LINK
FUSE
30 64 38 61
MALFUNCTION
IGNITION SWITCH
INDICATOR LAMP
26 ON or START
ENGINE CONTROL
MODULE RELAY 68 GLOW INDICATOR
FUSE LAMP
23 27
45
42
43
GLOW RELAY SPEED-
9 IGNITION SWITCH
OMETER
50 ON
11 NEEDLE
BATTERY
LIFT
12 SENSOR
IGNITION SWTICH BATTERY
OFF ON ON ST ACCELERATOR WORK UNIT VEHICLE
SPEED
ACCELERATOR
SENSOR
POSITION SWITCH
FUSE GLOW PLUG 65
16
55 ACCELERATOR
15 POSITION
SENSOR AIR
57 CONDITIONER
THERMO
INJECTION PUMP CONTROL CONTROL
MASS AIR AMP. PANEL
13 INJECTION TIMING
FLOW
RELAY-3
RELAY-2
RELAY-1
19 CONTROL VALVE
SENSOR
51
COOLING FAN
COOLING FAN
COOLING FAN
EC-CD-9
THERMISTOR
FUEL CUT SOLENOID
47 VALVE
54 53
Circuit Diagram
ECM (ECCS-D CONTROL MODULE)
ENGINE COOLANT 5
TEMPERATURE 14
4 ELECTRIC
SENSOR
GOVERNOR
FUEL 49
MOTOR-1
MOTOR-2
63
TEMPERATURE
29 CONTROL
SENSOR
COOLING FAN
COOLING FAN
SLEEVE
(INJECTION PUMP) 52
POSITION
7 SENSOR
NATS IMMU 59
RDNT
BRAKE TACHOMETER 2 33
SWITCH
20 62
39
STOP LAMP SWITCH CRANKSHAFT TRIPLE- AIR
44 21
POSITION PRESSURE CONDITIONER
46 8 RELAY
SENSOR SWITCH
24
ENGINE AND EMISSION CONTROL OVERALL SYSTEM
(TDC)
EGRC-SOLENOID 1
VALVE 28 To compressor
25
CD20T
YEC080
Battery
ECM (Engine control
module)
Ignition switch
Fuel
Fuel tank pressure
regulator
PCV
Fuel pump valve
Malfunction
indicator
Spark
plug
Ignition coil, power
transistor, camshaft
position sensor built
into distributor
EVAP canister
Injector Vehicle speed sensor
EVAP canister purge volume Heated oxygen sensor
control solenoid valve
EC-CD-10
Throttle
position
sensor
Three way Neutral position/
System Diagram
catalyst inhibitor switch
Air cleaner Engine coolant
temperature
Fast idle sensor
cam Knock sensor Air conditioner switch
SR20De
Mass air flow IACV-AAC manifold
IACV-FICD solenoid valve
sensor (Hot wire type) valve
Power steering oil
Muffler pressure switch
SR20DE
under oilpan
Three way catalyst
ENGINE AND EMISSION CONTROL OVERALL SYSTEM
Electrical load signal
CD20T
SEF830S
ENGINE AND EMISSION CONTROL OVERALL SYSTEM CD20T
Vacuum Hose Drawing
V
2
EGRC - solenoid valve
V
3
Vacuum pump
Air duct
V
1
EGR valve
NEF770
V
1 EGRC-solenoid valve to EGR valve
V
2 EGRC-solenoid valve to air duct
V
3 EGRC-solenoid valve to vacuum pump
Refer to ``System Diagram'' on previous page for vacuum control system.
EC-CD-11
ENGINE AND EMISSION CONTROL OVERALL SYSTEM CD20T
System Chart
Crankshaft position sensor c c Fuel injection control c Electric governor
(TDC)
Control sleeve position sensor c
c Fuel injection timing control c Injection timing control
valve
Fuel temperature sensor c
Mass air flow sensor c
c Fuel cut control c Fuel cut solenoid valve
Engine coolant temperature c
sensor
c Glow control system c Glow relay & glow lamp
Needle lift sensor c
Accelerator position sensor c
c On board diagnostic system c Malfunction indicator
ECM (On the instrument panel)
Accelerator position switch c
Air conditioner switch c c EGR valve control c EGRC-solenoid valve
Ignition switch (ON & ST POS.) c
c Cooling fan control c Cooling fan relays
Battery voltage c
Vehicle speed sensor c Air conditioning cut control Air conditioner relay
c c
Brake switch c
c Cooling fan motor control c Cooling fan relay
Atmospheric pressure sensor c
EC-CD-12
ENGINE AND EMISSION BASIC CONTROL SYSTEM DESCRIPTION CD20T
Glow Control System
SYSTEM DESCRIPTION
Engine speed
Crankshaft position sensor (TDC) Glow relay Glow plugs
c c c
ECM
Engine coolant temperature
Engine coolant temperature sensor Glow lamp
c c
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