1999 NISSAN PRIMERA Electronic Repair Manual

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Page 721 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual 6 CHECK VACUUM PORT
1. Stop engine.
2. Disconnect the vacuum hose connected to the air control valve (Power steering) at the vacuum port.
3. Blow air into vacuum port.
4. Check that air flows freely.

Page 722 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual 9 REPLACE IACV-AAC VALVE
1. Replace IACV-AAC valve assembly.
2. Perform ªIdle Air Volume Learningº, EC-QG-33.
Is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT©INSPECTION END
INCMP©Follow the ins

Page 723 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Component InspectionNCEC0286IACV-AAC VALVENCEC0286S011) Disconnect IACV-AAC valve harness connector.
2) Check IACV-AAC valve resistance.
Condition Resistance
Terminal 2 and terminals 1, 3
20-24W[at 20

Page 724 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Component DescriptionNCEC0295The ECM consists of a microcomputer, diagnostic test mode
selector, and connectors for signal input and output and for power
supply. The ECM controls the engine.
On Board

Page 725 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual 2 REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS (NISSAN ANTI-THEFT SYSTEM) system and registration of all NATS ignition key IDs.
Refer to ªNATS (NISSAN ANTI-THEFT SYSTEM)º, EC-QG-45.

Page 726 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Component DescriptionNCEC0513The valve timing control system is utilized to control intake valve
opening and closing timing. Engine coolant temperature signals,
engine speed and throttle position are

Component DescriptionNCEC0513The valve timing control system is utilized to control intake valve
opening and closing timing. Engine coolant temperature signals,
engine speed and throttle position are used to determine intake
valve timing.
The intake camshaft sprocket position is regulated by oil pressure
controlled by the intake valve timing control.
When ECM sends ON signal to intake valve timing control solenoid
valve, oil pressure is transmitted to camshaft sprocket. Then, intake
side camshaft is advanced.
OperationNCEC0514
Engine operating condition
Intake valve tim-
ing control sole-
noid valveIntake valve
opening and
closing timeValve overlap
Engine coolant
temperatureEngine speed B/FUEL SCHDL Neutral switch
20ÉC (68ÉF) -
70ÉC (158ÉF)
1,150 - 4,600
rpmAbove 3 msec
OFF ON Advance Increased
Above 70ÉC
(158ÉF)Above 7 msec
Conditions other than those above OFF Normal Normal
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0515
MONITOR ITEM CONDITION SPECIFICATION
INT/V SOL-B1IEngine: After warming upIdle OFF
Revving engine with full throttle
opening (Under 4,600 rpm)ON
ECM Terminals and Reference ValueNCEC0516Specification data are reference values and are measured between each terminal and engine 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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 Y/RIntake valve timing control
solenoid valveIgnition ªONºBATTERY VOLTAGE
(11 - 14V)
On Board Diagnosis LogicNCEC0517
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P 1111
1111IAn improper voltage signal is entered to ECM through
intake valve timing control solenoid valve.IHarness or connectors
(The intake valve timing control solenoid valve
circuit is open or shorted.)
IIntake valve timing control solenoid valve
SEF095X
D T C P 1111 I N TA K E VA LV ETIMING CONTROL
SOLENOID VALVEQG16I18DE
Component Description
EC-284

Page 727 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual DTC Confirmation ProcedureNCEC0518NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test

Page 728 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Wiring DiagramNCEC0519
YEC787
: Detectable line for DTC
: Non-detectable line for DTC
ECM INTAKE VALVE
TIMING CONTROL
SOLENOID
VA LV EFUSE
BLOCK
(J/B)Refer to
EL-POWER. IGNITION SWITCH
ON or START
Ref

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