1999 NISSAN PRIMERA wiring

Diagnostic Procedure ..............................................241
Component Inspection .............................................243
DTC P0400 EGR FUNCTION (CLOSE) (IF SO
EQUIPPED)..................................................................244
Description ...............................................................244
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................245
ECM Terminals and Reference Value .....................245
On Board Diagnosis Logic.......................................245
DTC Confirmation Procedure ..................................246
Wiring Diagram ........................................................248
Diagnostic Procedure ..............................................249
Component Inspection .............................................251
DTC P0403 EGR VOLUME CONTROL VALVE
(CIRCUIT) (IF SO EQUIPPED)....................................252
Description ...............................................................252
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................253
ECM Terminals and Reference Value .....................253
On Board Diagnosis Logic.......................................253
DTC Confirmation Procedure ..................................253
Wiring Diagram ........................................................255
Diagnostic Procedure ..............................................256
Component Inspection .............................................257
DTC P0420 THREE WAY CATALYST FUNCTION...258
On Board Diagnosis Logic.......................................258
DTC Confirmation Procedure ..................................258
Overall Function Check ...........................................259
Diagnostic Procedure ..............................................259
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE (CIRCUIT).................262
Description ...............................................................262
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................262
ECM Terminals and Reference Value .....................263
On Board Diagnosis Logic.......................................263
DTC Confirmation Procedure ..................................263
Wiring Diagram ........................................................264
Diagnostic Procedure ..............................................265
Component Inspection .............................................266
DTC P0500 VEHICLE SPEED SENSOR (VSS).........267
Component Description ...........................................267
ECM Terminals and Reference Value .....................267
On Board Diagnosis Logic.......................................267
DTC Confirmation Procedure ..................................267
Wiring Diagram ........................................................269
Diagnostic Procedure ..............................................271
DTC P0505 IDLE AIR CONTROL VALVE (IACV) -
AUXILIARY AIR CONTROL (AAC) VALVE................274
Description ...............................................................274
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................275ECM Terminals and Reference Value .....................275
On Board Diagnosis Logic.......................................275
DTC Confirmation Procedure ..................................275
Wiring Diagram ........................................................276
Diagnostic Procedure ..............................................277
Component Inspection .............................................281
DTC P0605 ECM.........................................................282
Component Description ...........................................282
On Board Diagnosis Logic.......................................282
DTC Confirmation Procedure ..................................282
Diagnostic Procedure ..............................................282
D T C P 1111 I N TA K E VA LV ETIMING CONTROL
SOLENOID VALVE......................................................284
Component Description ...........................................284
Operation .................................................................284
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................284
ECM Terminals and Reference Value .....................284
On Board Diagnosis Logic.......................................284
DTC Confirmation Procedure ..................................285
Wiring Diagram ........................................................286
Diagnostic Procedure ..............................................287
Component Inspection .............................................288
DTC P1217 OVERHEAT (COOLING SYSTEM).........289
System Description ..................................................289
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................289
ECM Terminals and Reference Value .....................290
On Board Diagnosis Logic.......................................290
Overall Function Check ...........................................291
Wiring Diagram ........................................................292
Diagnostic Procedure ..............................................294
Main 12 Causes of Overheating..............................298
Component Inspection .............................................299
DTC P1401 EGR TEMPERATURE SENSOR (IF
SO EQUIPPED)...........................................................300
Component Description ...........................................300
On Board Diagnosis Logic.......................................300
DTC Confirmation Procedure ..................................300
Wiring Diagram ........................................................302
Diagnostic Procedure ..............................................303
Component Inspection .............................................304
DTC P1402 EGR FUNCTION (OPEN) (IF SO
EQUIPPED)..................................................................305
Description ...............................................................305
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................306
ECM Terminals and Reference Value .....................306
On Board Diagnosis Logic.......................................306
DTC Confirmation Procedure ..................................307
Wiring Diagram ........................................................309
Diagnostic Procedure ..............................................310
CONTENTS(Cont'd)
EC-4

Component Inspection ............................................. 311
DTC P1706 PARK/NEUTRAL POSITION (PNP)
SWITCH.......................................................................313
Component Description ...........................................313
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................313
ECM Terminals and Reference Value .....................313
On Board Diagnosis Logic.......................................313
DTC Confirmation Procedure ..................................313
Overall Function Check ...........................................314
Wiring Diagram ........................................................315
Diagnostic Procedure For M/T Models....................316
INJECTOR...................................................................318
Component Description ...........................................318
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................318
ECM Terminals and Reference Value .....................318
Wiring Diagram ........................................................319
Diagnostic Procedure ..............................................320
Component Inspection .............................................322
IGNITION SIGNAL.......................................................323
Component Description ...........................................323
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................323
ECM Terminals and Reference Value .....................323
Wiring Diagram ........................................................324
Diagnostic Procedure ..............................................326
Component Inspection .............................................331
START SIGNAL...........................................................332
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................332
ECM Terminals and Reference Value .....................332
Wiring Diagram ........................................................333
Diagnostic Procedure ..............................................334
FUEL PUMP.................................................................336
System Description ..................................................336
Component Description ...........................................336
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................336
ECM Terminals and Reference Value .....................337
Wiring Diagram ........................................................338
Diagnostic Procedure ..............................................339Component Inspection .............................................341
POWER STEERING OIL PRESSURE SWITCH.........342
Component Description ...........................................342
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................342
ECM Terminals and Reference Value .....................342
Wiring Diagram ........................................................343
Diagnostic Procedure ..............................................344
Component Inspection .............................................346
REFRIGERANT PRESSURE SENSOR......................347
Description ...............................................................347
ECM Terminals and Reference Value .....................347
Wiring Diagram ........................................................348
Diagnostic Procedure ..............................................349
ELECTRICAL LOAD SIGNAL.....................................351
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................351
ECM Terminals and Reference Value .....................351
Wiring Diagram ........................................................352
MI & DATA LINK CONNECTORS...............................354
Wiring Diagram ........................................................354
SERVICE DATA AND SPECIFICATIONS (SDS)........355
Fuel Pressure Regulator..........................................355
Idle Speed and Ignition Timing ................................355
Mass Air Flow Sensor..............................................355
Intake Air Temperature Sensor ................................355
Engine Coolant Temperature Sensor ......................355
Throttle Position Sensor ..........................................355
Heated Oxygen Sensor 1 Heater (Front) ................355
Heated Oxygen Sensor 2 Heater (Rear).................355
Crankshaft Position Sensor (POS) ..........................356
Camshaft Position Sensor (PHASE) .......................356
EGR Volume Control Valve (If so equipped)...........356
EGR Temperature Sensor (If so equipped).............356
EVAP Canister Purge Volume Control Valve ..........356
IACV-AAC Valve ......................................................356
Injector .....................................................................356
Ignition Coil with Power Transistor ..........................357
Fuel Pump ...............................................................357
CONTENTS(Cont'd)
EC-5

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
NCEC0002The Supplemental Restraint System ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº, 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 air bag modules (located in the center of the steering wheel and
on the instrument panel on the passenger side), 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 helps to reduce the risk or severity of injury to the driver and front passenger in a side col-
lision. 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 theRS sectionof this Service Manual.
WARNING:
ITo 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 performed
by an authorized NISSAN dealer.
IImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
IDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses (except ªSEAT BELT PRE-TENSIONERº connector) can be
identified with yellow harness connector (and with yellow harness protector or yellow insulation
tape before the harness connectors).
Precautions for On Board Diagnostic (OBD)
System of Engine
NCEC0003The 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:
IBe 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.
IBe 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.)
ICertain 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.
IBe 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.
IBe 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 the EGR system or fuel injection system,
etc.
IBe sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
PRECAUTIONSQG16I18DE
Supplemental Restraint System (SRS) ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº
EC-9

IWhen measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
IDo not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the
ECM's transistor. Use a ground other than ECM terminals,
such as the ground.
Wiring Diagrams and Trouble DiagnosisNCEC0006When you read Wiring diagrams, refer to the followings:
IªHOW TO READ WIRING DIAGRAMSº in GI section
IªPOWER SUPPLY ROUTINGº for power distribution circuit in
EL section
When you perform trouble diagnosis, refer to the followings:
IªHOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNO-
SISº in GI section
IªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN
ELECTRICAL INCIDENTº in GI section
SEF348N
PRECAUTIONSQG16I18DE
Precautions (Cont'd)
EC-12

IntroductionNCEC0036The engine has an ECM to control major systems such as fuel
control, ignition control, idle air control system, etc. The ECM
accepts input signals from sensors and instantly drives actuators.
It is essential that both input and output signals are proper and
stable. At the same time, it is important that there are no problems
such as vacuum leaks, fouled spark plugs, or other problems with
the engine.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this
case, careful checking of suspected circuits may help prevent the
replacement of good parts.
A visual check only may not find the cause of the problems. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the ªWork Flowº on EC-QG-70.
Before undertaking actual checks, take a few minutes to talk with
a customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such problems, espe-
cially intermittent ones. Find out what symptoms are present and
under what conditions they occur. A ªDiagnostic Worksheetº like the
example on next page should be used.
Start your diagnosis by looking for ªconventionalº problems first.
This will help troubleshoot driveability problems on an electronically
controlled engine vehicle.
DIAGNOSTIC WORKSHEETNCEC0036S01There are many operating conditions that lead to the malfunction
of engine components. A good grasp of such conditions can make
trouble-shooting faster and more accurate.
In general, each customer feels differently about a problem. It is
important to fully understand the symptoms or conditions for a
customer complaint.
Utilize a diagnostic worksheet like the one on the next page in order
to organize all the information for troubleshooting.
Some conditions may cause the malfunction indicator to come on
steady or blink and DTC to be detected.
Example:
Vehicle ran out of fuel, which caused the engine to misfire.
MEF036D
SEF233G
SEF234G
SEF907L
KEY POINTS
WHAT îî..... Vehicle & engine
model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions,
Weather conditions,
Symptoms
TROUBLE DIAGNOSIS Ð INTRODUCTIONQG16I18DE
Introduction
EC-68

DESCRIPTION FOR WORK FLOWNCEC0037S01
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using the
ªDIAGNOSTIC WORK SHEETº, EC-QG-69.
STEP IIBefore confirming the concern, check and write down (print out using CONSULT-II or Generic Scan Tool) the (1st
trip) Diagnostic Trouble Code (DTC) and the (1st trip) freeze frame data, then erase the code and the data.
(Refer to EC-QG-44.) The (1st trip) DTC and the (1st trip) freeze frame data can be used when duplicating the
incident at STEP III & IV.
Study the relationship between the cause, specified by (1st trip) DTC, and the symptom described by the cus-
tomer. (The ªSymptom Matrix Chartº will be useful. See EC-QG-82.)
Also check related service bulletins for information.
STEP IIITry to confirm the symptom and under what conditions the incident occurs.
The ªDIAGNOSTIC WORK SHEETº and the freeze frame data are useful to verify the incident. Connect CON-
SULT-II to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform INCIDENT SIMULATION TESTS. (Refer to GI section.)
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IVTry to detect the (1st trip) Diagnostic Trouble Code by driving in (or performing) the ªDIAGNOSTIC TROUBLE
CODE CONFIRMATION PROCEDUREº. Check and read the (1st trip) DTC and (1st trip) freeze frame data by
using CONSULT-II or Generic Scan Tool.
During the (1st trip) DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO
TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform INCIDENT SIMULATION TESTS. (Refer to GI section.)
In case the ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDUREº is not available, perform the
ªOVERALL FUNCTION CHECKº instead. The (1st trip) DTC cannot be displayed by this check, however, this
simplified ªcheckº is an effective alternative.
The ªNGº result of the ªOVERALL FUNCTION CHECKº is the same as the (1st trip) DTC detection.
STEP VTake the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC PXXXX.
If the normal code is indicated, proceed to the BASIC INSPECTION. (Refer to EC-QG-72.) If CONSULT-II is
available, perform ªDATA MONITOR (SPEC)º mode with CONSULT-II and proceed to the ªTROUBLE DIAGNO-
SIS-SPECIFICATION VALUEº, EC-QG-98. (If malfunction is detected, proceed to ªREPAIR/REPLACEº. Then per-
form inspections according to the Symptom Matrix Chart. (Refer to EC-QG-82.)
STEP VIIdentify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect
the system for mechanical binding, loose connectors or wiring damage using (tracing) ªHarness Layoutsº.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in ªDATA MONITOR
(AUTO TRIG)º mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CON-
SULT-II. Refer to EC-QG-91.
The ªDIAGNOSTIC PROCEDUREº in EC section contains a description based on open circuit inspection. A short
circuit inspection is also required for the circuit check in the DIAGNOSTIC PROCEDURE. For details, refer to GI
section (ªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENTº, ªCircuit Inspectionº).
Repair or replace the malfunction parts.
STEP VIIOnce you have repaired the circuit or replaced a component, you need to run the engine in the same conditions
and circumstances which resulted in the customer's initial complaint.
Perform the ªDIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDUREº and confirm the normal code
[Diagnostic trouble code No. P0000 or 0000] is detected. If the incident is still detected in the final check, perform
STEP VI by using a different method from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) (1st trip) DTC in
ECM. (Refer to EC-QG-44.)
TROUBLE DIAGNOSIS Ð INTRODUCTIONQG16I18DE
Work Flow (Cont'd)
EC-71

Basic InspectionNCEC0038Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
IHeadlamp switch is OFF,
On vehicle equipped with daytime light system, set lighting
switch to the 1st position to light only small lamps.
IAir conditioner switch is OFF,
IRear window defogger switch is OFF,
ISteering wheel is in the straight-ahead position, etc.
1 INSPECTION START
1. Check service records for any recent repairs that may indicate a related problem, or a current need for scheduled
maintenance.
2. Open engine hood and check the following:
IHarness connectors for improper connections
IVacuum hoses for splits, kinks and improper connections
IWiring for improper connections, pinches and cuts
IAir cleaner clogging
IHoses and ducts for leaks
SEF983U
©GO TO 2.
2 CHECK THROTTLE DRUM OPERATION-I
Confirm that throttle drum is in contact with the stopper.
OK or NG
OK (with CONSULT-II)©GO TO 5.
OK (without CONSULT-
II)©GO TO 8.
NG©GO TO 3.
3 CHECK ACCELERATOR WIRE INSTALLATION
Check accelerator wire for slack
OK or NG
OK©GO TO 4.
NG©Adjust accelerator wire. Refer to FE section, ªAdjusting Accelerator Wireº.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONQG16I18DE
Basic Inspection
EC-72

Main Power Supply and Ground Circuit
WIRING DIAGRAMNCEC0047
YEC770
BATTERY
Refer to EL-POWER.
OFF
ACCST
ONIGNITION
SWITCH
FUSE
BLOCK
(J/B)
To EC-IGN/SG,
EC-TP/SW,
EC-AAC/V,
EC-EGR,
EC-EGVC/V ECM RELAY
: Detectable line for DTC
: Non-detectable line for DTC
Refer to last page (Foldout page) ECM
TROUBLE DIAGNOSIS FOR POWER SUPPLYQG16I18DE
Main Power Supply and Ground Circuit
EC-103