Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Primera 2000.2005 Approved Nissan Primera 2000 ec_ga16
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ENGINE CONTROL SYSTEM
SECTION EC
EC
CONTENTS
GA16DE Fuel Pressure Regulator Check .......................... 23
Injector Removal and Installation ........................ 23
PRECAUTIONS AND PREPARATION ..................... 3
Idle Speed/Ignition Timing/Idle Mixture Ratio
Special Service Tools ............................................ 3
Adjustment ........................................................... 24
Precautions ............................................................ 3
ON-BOARD DIAGNOSTIC SYSTEM
Engine Fuel & Emission Control System .............. 4
DESCRIPTION ......................................................... 32
Precautions for Engine Control Module
Malfunction Indicator (MI) .................................... 32
Trouble Diagnosis of Engine ................................. 5
CONSULT-II......................................................... 36
Precautions ............................................................ 5
Generic Scan Tool (GST) .................................... 43
ENGINE AND EMISSION CONTROL OVERALL
TROUBLE DIAGNOSIS -- General Description .. 46
SYSTEM..................................................................... 7
Introduction .......................................................... 46
Circuit Diagram ...................................................... 7
Work Flow ............................................................ 47
System Diagram .................................................... 8
Description for Work Flow ................................... 48
Engine Control Module Component Parts
Diagnostic Worksheet .......................................... 49
Location.................................................................. 9
Diagnostic Trouble Code (DTC) Chart ................ 50
Vacuum Hose Drawing ........................................ 11
Fail-Safe Chart..................................................... 52
ENGINE AND EMISSION BASIC
Basic Inspection................................................... 53
CONTROLSYSTEM DESCRIPTION ....................... 12
Fast Idle Cam (FIC) Inspection and
System Chart ....................................................... 12
Adjustment ........................................................... 55
Multiport Fuel Injection (MFI) System.................. 13
Symptom Matrix Chart ......................................... 56
Distributor Ignition (DI) System............................ 16
CONSULT-II Reference Value in Data Monitor
Air Conditioning Cut Control ................................ 17
Mode .................................................................... 58
Fuel Cut Control (at no load & high engine
Major Sensor Reference Graph in Data
speed) .................................................................. 17
Monitor Mode ....................................................... 60
EVAPORATIVE EMISSION SYSTEM ..................... 18
ECM Terminals and Reference Value................. 62
Description ........................................................... 18
TROUBLE DIAGNOSIS FOR POWER SUPPLY.... 69
Inspection............................................................. 18
Main Power Supply and Ground Circuit .............. 69
POSITIVE CRANKCASE VENTILATION................ 20
TROUBLE DIAGNOSIS FOR DTC 11 .................... 73
Description ........................................................... 20
Camshaft Position Sensor (CMPS) ..................... 73
Inspection............................................................. 21
TROUBLE DIAGNOSIS FOR DTC 12 .................... 77
BASIC SERVICE PROCEDURE ............................. 22
Mass Air Flow Sensor (MAFS) ............................ 77
Fuel Pressure Release ........................................ 22
TROUBLE DIAGNOSIS FOR DTC 13 .................... 81
Fuel Pressure Check ........................................... 22
Engine Coolant Temperature Sensor (ECTS)..... 81
TROUBLE DIAGNOSIS FOR DTC 21 .................... 85 Fuel Pump.......................................................... 113
Ignition Signal ...................................................... 85 Idle Air Control Valve (IACV) -- Auxiliary Air
TROUBLE DIAGNOSIS FOR DTC 43 .................... 90 Control (AAC) Valve .......................................... 117
Throttle Position Sensor ...................................... 90 IACV-FICD Solenoid Valve................................ 121
TROUBLE DIAGNOSIS FOR Cooling Fan Control........................................... 124
NON-DETECTABLE ITEMS .................................... 95 Power Steering Oil Pressure Switch ................. 129
Vehicle Speed Sensor (VSS) .............................. 95 Neutral Position Switch...................................... 132
Start Signal .......................................................... 98 Electrical Load Signal ........................................ 135
EGR Valve and EVAP Canister Purge Control MI & Data Link Connectors ............................... 141
Solenoid Valve ................................................... 100 SERVICE DATA AND SPECIFICATIONS (SDS) . 142
Heated Oxygen Sensor (HO2S) ........................ 105 General Specifications ....................................... 142
Injector ............................................................... 110 Inspection and Adjustment ................................ 142
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-GA-2
PRECAUTIONS AND PREPARATION GA16DE
Special Service Tools
X: Applicable
--: Not applicable
Tool number
Description
Tool name
EG11140000 Measuring engine speed
Ignition coil adapter
harness
X
NT338
KV10117100 Loosening or tightening heated oxy-
Heated oxygen sensor gen sensor
wrench X
NT630
Precautions
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''
The Supplemental Restraint System ``Air Bag'' and ``Seat Belt Pre-tensioner'', used along with a seat belt,
help to reduce the risk or severity of injury to the driver and front passenger in a frontal collision. The
Supplemental Restraint System consists of an air bag module (located in the center of the steering wheel
and on the instrument panel on the passenger's side, where fitted), seat belt pre-tensioners, a diagnosis
sensor unit, warning lamp, wiring harness and spiral cable.
In addition to the supplemental air bag modules for a frontal collision, the supplemental side air bag used
along with the seat belt help to reduce the risk or severity of injury to the driver and front passenger in a
side collision. The supplemental side air bag consists of air bag modules (located in the outer side of front
seats), satellite sensor, diagnosis sensor unit (one of components of supplemental air bags for a frontal
collision), wiring harness, warning lamp (one of components of supplemental air bags for a frontal collision).
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
q 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 must be per-
formed by an authorized NISSAN dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed in this
Service Manual. SRS wiring harnesses (except ``SEAT BELT PRE-TENSIONER'' connector) can
be identified with yellow harness connector (and with yellow harness protector or yellow insula-
tion tape before the harness connectors). Do not use electrical test equipment on any circuit
related to the SRS.
EC-GA-3
PRECAUTIONS AND PREPARATION GA16DE
Engine Fuel & Emission Control System
ECM WIRELESS EQUIPMENT
q Do not disassemble ECM (Engine control q When installing C.B. ham radio or a
module). mobile phone, be sure to observe the
q Do not turn diagnosis mode selector following as it may adversely affect
forcibly. electronic control systems depending on
q If a battery terminal is disconnected, the its installation location.
memory will return to the ECM value. 1) Keep the antenna as far away as
The ECM will now start to self-control at possible from the ECM.
its initial value. Engine operation can 2) Keep the antenna feeder line more than
vary slightly when the terminal is 20 cm (7.9 in) away from the harness of
disconnected. However, this is not an electronic controls.
BATTERY
indication of a problem. Do not replace Do not let them run parallel for a long
q Always use a 12 volt battery as
parts because of a slight variation. distance.
power source.
q Do not attempt to disconnect battery
3) Adjust the antenna and feeder line so
cables while engine is running. that the standing-wave ratio can be kept
small.
4) Be sure to ground the radio to vehicle
body.
ENGINE CONTROL MODULE PARTS
HANDLING
q Handle mass air flow sensor carefully to
avoid damage.
q Do not disassemble mass air flow sensor. WHEN STARTING
q Do not clean mass air flow sensor with any q Do not depress accelerator pedal when starting.
type of detergent. q Immediately after starting, do not rev up engine
q Do not disassemble IACV-AAC valve. unnecessarily. FUEL PUMP
q Even a slight leak in the air intake system q Do not rev up engine just prior to shutdown. q Do not operate fuel pump when
can cause serious problems. there is no fuel in lines.
q Do not shock or jar the camshaft position
q Tighten fuel hose clamps to the
sensor. specified torque (Refer to EM
section.).
ENGINE CONTROL MODULE
HARNESS HANDLING
q Correct engine control module
harness connectors securely.
A poor connection can cause an
extremely high (surge) voltage to
develop in coil and condenser,
resulting in damage to ICs.
q Keep engine control module
harness at least 10 cm (3.9 in)
away from adjacent harnesses, to
prevent an engine control module
system malfunction due to receiving
external noise, degraded operation
of ICs, etc.
q Keep engine control module parts
and harnesses dry.
q Before removing parts, turn off
ignition switch and then disconnect
battery ground cable.
NEF561
EC-GA-4
PRECAUTIONS AND PREPARATION GA16DE
Precautions for Engine Control Module
Trouble Diagnosis of Engine
CAUTION:
q Be sure to turn the ignition switch ``OFF'' 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 malfunction.
q Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector
will cause malfunction due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
q Be sure to route and clamp the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause malfunction due to the short circuit.
q Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber
tube may cause malfunction.
q Be sure to erase the unnecessary malfunction information (repairs completed) in the ECM before
returning the vehicle to the customer.
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, tighten
securing bolt until red projection is in line with connec-
Red tor face.
projection
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