Control NISSAN PRIMERA 1999 Electronic Repair Manual

Component DescriptionNCEC0435The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the injector circuit, the coil in the injector is
energized. The energized coil pulls the needle valve back and
allows fuel to flow through the injector into the intake manifold. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the injector remains open. The
ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0436
MONITOR ITEM CONDITION SPECIFICATION
INJ PULSE - B1IEngine: After warming up
IAir conditioner switch: OFF
IShift lever: ªNº
INo-loadIdle 2.4 - 3.2 msec
2,000 rpm 1.9 - 3.2 msec
B/FUEL SCHDLIEngine: After warming up
IAir conditioner switch: OFF
IShift lever: ªNº
INo-loadIdle 1.5 - 2.5 msec
2,000 rpm 1.5 - 2.5 msec
ECM Terminals and Reference ValueNCEC0437Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
101
103
105
107R/B
Y/B
G/B
L/BInjector No. 1
Injector No. 2
Injector No. 3
Injector No. 4[Engine is running]
IWarm-up condition
IIdle speedBATTERY VOLTAGE
(11 - 14V)
SEF011W
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
SEF012W
SEF138X
INJECTORQG16I18DE
Component Description
EC-318

Wiring DiagramNCEC0545
YEC793
ENGINE
CONTROL
MODULE
RELAY
CONDENSER Refer to EL-POWER. BATTERY
: Detectable line for DTC
: Non-detectable line for DTC
Next pageNext page
IGNITION SIGNALQG16I18DE
Wiring Diagram
EC-324

System DescriptionNCEC0444
Sensor Input Signal to ECMECM func-
tionActuator
Camshaft position sensor (PHASE) Engine speed
Fuel pump
controlFuel pump relay
Ignition switch Start signal
The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a 180É signal from the camshaft position sensor, it knows that the engine is
rotating, and causes the pump to perform. If the 180É signal is not received when the ignition switch is on, the
engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The
ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the
fuel pump.
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second
Engine running and cranking Operates
When engine is stopped (Signal is not sent from camshaft position sensor.) Stops in 1.5 seconds
Except as shown aboveStops
Component DescriptionNCEC0501A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0445
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLYIIgnition switch is turned to ON (Operates for 1 second)
IEngine running and cranking
IWhen engine is stopped (stops in 1.5 seconds)ON
IExcept as shown above OFF
AEC801
FUEL PUMPQG16I18DE
System Description
EC-336

JEF147Y
DescriptionNLEC0580The refrigerant pressure sensor is installed at the liquid tank of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan sys-
tem.
SEF099X
ECM Terminals and Reference ValueNLEC0581Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
58 B Sensor's ground[Engine is running]
IWarm-up condition
IIdle speedApproximately 0V
74 R/LRefrigerant pressure
sensor[Engine is running]
IWarm-up condition
IBoth A/C switch and blower switch are ªONº
(Compressor operates.)1.0 - 4.0V
111 G Sensor's power supply[Ignition switch ªONº]Approximately 5V
REFRIGERANT PRESSURE SENSORQG16I18DE
Description
EC-347

Crankshaft Position Sensor (POS)NCEC0558
Terminal No. (Polarity) ResistanceW[at 25ÉC (77ÉF)]
3 (+) - 1 (þ)
Except 0 or¥ 2 (+) - 1 (þ)
3 (+) - 2 (þ)
Camshaft Position Sensor (PHASE)NCEC0559
Terminal No. (Polarity) ResistanceW[at 25ÉC (77ÉF)]
3 (+) - 1 (þ)
Except 0 or¥ 2 (+) - 1 (þ)
3 (+) - 2 (þ)
EGR Volume Control Valve (If so equipped)NCEC0560
Terminal No. ResistanceW[at 20ÉC (68ÉF)]
1-2
20-24 2-3
4-5
5-6
EGR Temperature Sensor (If so equipped)NCEC0472
EGR temperature
ÉC (ÉF)Voltage
VResistance
MW
0 (32) 4.56 0.62 - 1.05
50 (122) 2.25 0.065 - 0.094
100 (212) 0.59 0.011 - 0.015
EVAP Canister Purge Volume Control ValveNCEC0481
Resistance [at 20ÉC (68ÉF)]W31-35
IACV-AAC ValveNCEC0474
Terminal No. ResistanceW[at 20ÉC (68ÉF)]
1-2
20-24 2-3
4-5
5-6
InjectorNCEC0475
Resistance [at 25ÉC (77ÉF)]W13.5 - 17.5
SERVICE DATA AND SPECIFICATIONS (SDS)
Crankshaft Position Sensor (POS)
EC-356

ENGINE CONTROL SYSTEM
SECTION
EC
CONTENTS
SR20DE
TROUBLE DIAGNOSIS - INDEX....................................6
Alphabetical & P No. Index for DTC ...........................6
PRECAUTIONS.............................................................10
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER².............10
Precautions for On Board Diagnostic (OBD)
System of Engine and CVT .......................................10
Engine Fuel & Emission Control System .................. 11
Precautions ................................................................12
Wiring Diagrams and Trouble Diagnosis ...................13
PREPARATION.............................................................14
Special Service Tools ................................................14
Commercial Service Tool ...........................................14
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.........................................................................15
Engine Control Component Parts Location ...............15
Circuit Diagram ..........................................................19
System Diagram ........................................................20
Vacuum Hose Drawing ..............................................21
System Chart .............................................................22
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION...............................................23
Multiport Fuel Injection (MFI) System .......................23
Distributor Ignition (DI) System .................................25
Air Conditioning Cut Control ......................................26
Fuel Cut Control (at no load & high engine
speed) ........................................................................27
Evaporative Emission System ...................................27
Positive Crankcase Ventilation ..................................30
BASIC SERVICE PROCEDURE...................................31
Fuel Pressure Release ..............................................31
Fuel Pressure Check .................................................31
Fuel Pressure Regulator Check ................................32
Injector .......................................................................32
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment .................................................................34Idle Air Volume Learning ...........................................46
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................48
Introduction ................................................................48
Two Trip Detection Logic ...........................................48
Emission-related Diagnostic Information ...................49
Malfunction Indicator (MI) ..........................................58
OBD System Operation Chart ...................................63
CONSULT-II ...............................................................68
Generic Scan Tool (GST) ..........................................78
TROUBLE DIAGNOSIS - INTRODUCTION..................80
Introduction ................................................................80
Work Flow ..................................................................82
TROUBLE DIAGNOSIS - BASIC INSPECTION...........84
Basic Inspection.........................................................84
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION...............................................................92
DTC Inspection Priority Chart....................................92
Fail-safe Chart ...........................................................93
Symptom Matrix Chart ...............................................94
CONSULT-II Reference Value in Data Monitor
Mode ..........................................................................98
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................100
ECM Terminals and Reference Value .....................103
TROUBLE DIAGNOSIS - SPECIFICATION VALUE.. 110
Description ............................................................... 110
Testing Condition ..................................................... 110
Inspection Procedure ............................................... 110
Diagnostic Procedure .............................................. 111
TROUBLE DIAGNOSIS FOR INTERMITTENT
INCIDENT..................................................................... 114
Description ............................................................... 114
Diagnostic Procedure .............................................. 114
TROUBLE DIAGNOSIS FOR POWER SUPPLY........ 115
Main Power Supply and Ground Circuit .................. 115
EC

Wiring Diagram ........................................................242
Diagnostic Procedure ..............................................243
Component Inspection .............................................245
DTC P0420 THREE WAY CATALYST FUNCTION...246
On Board Diagnosis Logic.......................................246
DTC Confirmation Procedure ..................................246
Overall Function Check ...........................................247
Diagnostic Procedure ..............................................247
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE (CIRCUIT).................250
Description ...............................................................250
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................250
ECM Terminals and Reference Value .....................251
On Board Diagnosis Logic.......................................251
DTC Confirmation Procedure ..................................251
Wiring Diagram ........................................................252
Diagnostic Procedure ..............................................253
Component Inspection .............................................254
DTC P0500 VEHICLE SPEED SENSOR (VSS).........255
Component Description ...........................................255
ECM Terminals and Reference Value .....................255
On Board Diagnosis Logic.......................................255
DTC Confirmation Procedure ..................................255
Wiring Diagram ........................................................257
Diagnostic Procedure ..............................................260
DTC P0505 IDLE AIR CONTROL VALVE (IACV) -
AUXILIARY AIR CONTROL (AAC) VALVE...............263
Description ...............................................................263
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................264
ECM Terminals and Reference Value .....................264
On Board Diagnosis Logic.......................................264
DTC Confirmation Procedure ..................................264
Wiring Diagram ........................................................265
Diagnostic Procedure ..............................................266
Component Inspection .............................................270
DTC P0510 CLOSED THROTTLE POSITION
SWITCH (IF SO EQUIPPED)......................................271
Component Description ...........................................271
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................271
ECM Terminals and Reference Value .....................271
On Board Diagnosis Logic.......................................271
DTC Confirmation Procedure ..................................272
Overall Function Check ...........................................272
Wiring Diagram ........................................................273
Diagnostic Procedure ..............................................274
Component Inspection .............................................276
DTC P0605 ECM.........................................................277
Component Description ...........................................277
On Board Diagnosis Logic.......................................277DTC Confirmation Procedure ..................................277
Diagnostic Procedure ..............................................278
DTC P1217 OVERHEAT (COOLING SYSTEM).........279
System Description ..................................................279
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................280
ECM Terminals and Reference Value .....................280
On Board Diagnosis Logic.......................................280
Overall Function Check ...........................................281
Wiring Diagram ........................................................282
Diagnostic Procedure ..............................................284
Main 12 Causes of Overheating..............................288
Component Inspection .............................................289
DTC P1336 CRANKSHAFT POSITION SENSOR
(CKPS) (OBD) (COG)..................................................290
Component Description ...........................................290
ECM Terminals and Reference Value .....................290
On Board Diagnosis Logic.......................................290
DTC Confirmation Procedure ..................................291
Wiring Diagram ........................................................292
Diagnostic Procedure ..............................................293
Component Inspection .............................................294
DTC P1605 A/T DIAGNOSIS COMMUNICATION
LINE.............................................................................295
System Description ..................................................295
ECM Terminals and Reference Value .....................295
On Board Diagnosis Logic.......................................295
DTC Confirmation Procedure ..................................295
Wiring Diagram ........................................................296
Diagnostic Procedure ..............................................297
DTC P1706 PARK/NEUTRAL POSITION (PNP)
SWITCH.......................................................................298
Component Description ...........................................298
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................298
ECM Terminals and Reference Value .....................298
On Board Diagnosis Logic.......................................298
DTC Confirmation Procedure ..................................298
Overall Function Check ...........................................299
Wiring Diagram ........................................................300
Diagnostic Procedure ..............................................301
INJECTOR...................................................................302
Component Description ...........................................302
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................302
ECM Terminals and Reference Value .....................302
Wiring Diagram ........................................................303
Diagnostic Procedure ..............................................304
Component Inspection .............................................305
IGNITION SIGNAL.......................................................306
Component Description ...........................................306
CONTENTS(Cont'd)
EC-4

CONSULT-II Reference Value in Data Monitor
Mode ........................................................................306
ECM Terminals and Reference Value .....................306
Wiring Diagram ........................................................308
Diagnostic Procedure ..............................................309
Component Inspection .............................................310
START SIGNAL...........................................................312
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................312
ECM Terminals and Reference Value .....................312
Wiring Diagram ........................................................313
Diagnostic Procedure ..............................................314
FUEL PUMP.................................................................316
System Description ..................................................316
Component Description ...........................................316
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................316
ECM Terminals and Reference Value .....................316
Wiring Diagram ........................................................317
Diagnostic Procedure ..............................................318
Component Inspection .............................................320
POWER STEERING OIL PRESSURE SWITCH.........321
Component Description ...........................................321
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................321
ECM Terminals and Reference Value .....................321
Wiring Diagram ........................................................322Diagnostic Procedure ..............................................323
Component Inspection .............................................324
ELECTRICAL LOAD SIGNAL.....................................325
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................325
ECM Terminals and Reference Value .....................325
Wiring Diagram ........................................................326
MI & DATA LINK CONNECTORS..............................329
Wiring Diagram ........................................................329
SERVICE DATA AND SPECIFICATIONS (SDS).......330
Fuel Pressure Regulator..........................................330
Idle Speed and Ignition Timing ................................330
Ignition Coil ..............................................................330
Mass Air Flow Sensor..............................................330
Engine Coolant Temperature Sensor ......................330
Fuel Pump ...............................................................330
IACV-AAC Valve ......................................................330
Injector .....................................................................330
Throttle Position Sensor ..........................................331
Heated Oxygen Sensor 1 (Front) Heater ................331
Intake Air Temperature Sensor ................................331
EVAP Canister Purge Volume Control Valve ..........331
Heated Oxygen Sensor 1 (Rear) Heater.................331
Crankshaft Position Sensor (OBD)..........................331
CONTENTS(Cont'd)
EC-5

Items
(CONSULT-II screen terms)DTC*6
Reference page
CONSULT-II
GST*2ECM*1
PNP SW/CIRC *7 P0705 0705 Refer to AT section.
PURG VOLUME CONT/V *7 P0443 0443 EC-SR-250
HO2S2 (B1) *7 P0137 0137 EC-SR-180
HO2S2 (B1) *7 P0138 0138 EC-SR-187
HO2S2 (B1) *7 P0139 0139 EC-SR-194
HO2S2 (B1) *7 P0140 0140 EC-SR-201
HO2S2 HTR (B1) *7 P0141 0141 EC-SR-207
STEP MOTOR CIRC -B1 *7 P1777 1777 Refer to AT section.
STEP MOTOR FNC *7 P1778 1778 Refer to AT section.
TCC SOLENOID/CIRC *7 P0740 0740 Refer to AT section.
THRTL POS SEN/CIRC *3 P0120 0120 EC-SR-137
TP SEN/CIRC A/T *7 P1705 1705 Refer to AT section.
TW CATALYST SYSTEM *7 P0420 0420 EC-SR-246
VEH SPD SEN/CIR AT *4 *7 P0720 0720 Refer to AT section.
VEH SPEED SEN/CIRC *4 P0500 0500 EC-SR-255
*1: In Diagnostic Test Mode II (Self-diagnostic results). These numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO 15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
*4: The MI illuminates when the ªSecondary speed sensor signalº and the ªVehicle speed sensor signalº meet the fail-safe condition at
the same time.
*5: While engine is running.
*6: 1st trip DTC No. is the same as DTC No.
*7: Not available for ªEastern Europe modelsº.
P NO. INDEX FOR DTCNCEC0001S02
DTC*6
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*2ECM*1
Ð Ð Unable to access ECM EC-SR-93
No DTC Flashing*5 NO SELF DIAGNOSTIC FAILURE INDICATED EC-SR-59
P0000 0000 NO SELF DIAGNOSTIC FAILURE INDICATED Ð
P0100 0100 MAF SEN/CIRCUIT*3 EC-SR-120
P0110 0110 AIR TEMP SEN/CIRC *7 EC-SR-127
P0115 0115 COOLANT T SEN/CIRC *3 EC-SR-132
P0120 0120 THRTL POS SEN/CIRC *3 EC-SR-137
P0130 0130 HO2S1 (B1) EC-SR-144
P0131 0131 HO2S1 (B1) *7 EC-SR-150
P0132 0132 HO2S1 (B1) *7 EC-SR-156
P0133 0133 HO2S1 (B1) *7 EC-SR-162
P0134 0134 HO2S1 (B1) *7 EC-SR-170
P0135 0135 HO2S1 HTR (B1) *7 EC-SR-175
TROUBLE DIAGNOSIS Ð INDEXSR20DE
Alphabetical & P No. Index for DTC (Cont'd)
EC-7

P1605 1605 A/T DIAG COMM LINE *7 EC-SR-295
P1610 - 1615 1610 - 1615 NATS MALFUNCTION Refer to EL section.
P1705 1705 TP SEN/CIRC A/T *7 Refer to AT section.
P1706 1706 P-N POS SW/CIRCUIT *7 EC-SR-298
P1777 1777 STEP MOTOR CIRC *7 Refer to AT section.
P1778 1778 STEP MOTOR FNC *7 Refer to AT section.
P1791 1791 LINE PRESS SE *7 Refer to AT section.
*1: In Diagnostic Test Mode II (Self-diagnostic results). These numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO 15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
*4: The MI illuminates when the ªSecondary speed sensor signalº and the ªVehicle speed sensor signal or ABS actuator and electric
unit (control unit) signalº meet the fail-safe condition at the same time.
*5: While engine is running.
*6: 1st trip DTC No. is the same as DTC No.
*7: Not available for ªEastern Europe modelsº.
TROUBLE DIAGNOSIS Ð INDEXSR20DE
Alphabetical & P No. Index for DTC (Cont'd)
EC-9