1999 NISSAN PRIMERA Electronic Repair Manual

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Page 865 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual EXPLANATION FOR DRIVING PATTERNS FOR ªMISFIRE <EXHAUST QUALITY
DETERIORATION>º, ªFUEL INJECTION SYSTEMº
NCEC0033S04Driving Pattern BNCEC0033S0401Driving pattern B means the vehicle operation as fo

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NISSAN PRIMERA 1999 Electronic Repair Manual RELATIONSHIP BETWEEN MI, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPTFOR
ªMISFIRE <EXHAUST QUALITY DETERIORATION>º, ªFUEL INJECTION SYSTEMº
NCEC0033S05
*1: When the same malfunction is
detected i

Page 867 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual EXPLANATION FOR DRIVING PATTERNS EXCEPTFOR ªMISFIRE <EXHAUST QUALITY
DETERIORATION>º, ªFUEL INJECTION SYSTEMº
NCEC0033S06Driving Pattern ANCEC0033S0601
IThe A counter will be cleared when the malf

Page 868 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual CONSULT-II=NCEC0034CONSULT-II INSPECTION PROCEDURENCEC0034S011. Turn ignition switch OFF.
2. Connect ªCONSULT-IIº to data link connector.
(Data link connector is located behind the fuse box cover.)

Page 869 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual ENGINE CONTROL COMPONENT PARTS/CONTROL
SYSTEMS APPLICATION
NCEC0034S02
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
D ATA
MONI-
TORD ATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC
CONFIRMATION

Page 870 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
D ATA
MONI-
TORD ATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL CO

ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
D ATA
MONI-
TORD ATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
OUT-
PUTInjectors X X X
Power transistor (Ignition timing) XX
(Ignition
signal)XXX
IACV-AAC valve X X X X X
EVAP canister purge volume con-
trol solenoid valveX XXX
Air conditioner relay X X
Fuel pump relay X X X X
Heated oxygen sensor 1 (front)
heaterXXXX
Heated oxygen sensor 2 (rear)
heaterXXXX
Cooling fan X X X X
Calculated load value X X X
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-SR-50.
FUNCTIONNCEC0034S03
Diagnostic test mode Function
Work supportThis mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
Self-diagnostic resultsSelf-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame
data can be read and erased quickly.*1
Data monitor Input/Output data in the ECM can be read.
Data monitor (spec)Input/Output specifications of the basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
DTC confirmation The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
ECM part number ECM part numbers can be read.
*1 The following emission-related diagnostic information is cleared when the ECM memory is erased.
1) Diagnostic trouble codes
2) 1st trip diagnostic trouble codes
3) Freeze frame data
4) 1st trip freeze frame data
5) System readiness test (SRT) codes
6) Test values
7) Distance traveled while MI is activated
8) Others
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-70

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NISSAN PRIMERA 1999 Electronic Repair Manual WORK SUPPORT MODENCEC0034S04
WORK ITEM CONDITION USAGE
IGNITION TIMING ADJIIGNITION TIMING FEEDBACK CONTROL WILL BE
HELD BY TOUCHING ªSTARTº. AFTER DOING SO,
ADJUST IGNITION TIMING WITH A TIMING LIG

WORK SUPPORT MODENCEC0034S04
WORK ITEM CONDITION USAGE
IGNITION TIMING ADJIIGNITION TIMING FEEDBACK CONTROL WILL BE
HELD BY TOUCHING ªSTARTº. AFTER DOING SO,
ADJUST IGNITION TIMING WITH A TIMING LIGHT BY
TURNING THE CAMSHAFT POSITION SENSOR.When adjusting initial ignition tim-
ing
FUEL PRESSURE RELEASEIFUEL PUMP WILL STOP BY TOUCHING ªSTARTº
DURING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.When releasing fuel pressure
from fuel line
TARGET IDLE RPM ADJIIDLE CONDITION When setting target idle speed
TARGET IGNITION TIMING ADJIIDLE CONDITION When adjusting target ignition
timing
After adjustment, confirm target
ignition timing with a timing light.
SELF DIAGNOSTIC MODENCEC0034S05DTC and 1st Trip DTCNCEC0034S0501Regarding items of ªDTC and 1st trip DTCº, refer to
ªTROUBLE DIAGNOSIS Ð INDEXº, EC-SR-6.
Freeze Frame Data and 1st Trip Freeze Frame DataNCEC0034S0502
Freeze frame data
item*Description
DIAG TROUBLE
CODE
[PXXXX]IEngine Control component part/control system has a trouble code, it is displayed as ªPXXXXº. [Refer
to ªAlphabetical & P No. Index for DTCº (EC-SR-6).]
FUEL SYS DATAIªFuel injection system statusº at the moment a malfunction is detected is displayed.
IOne mode in the following is displayed.
ªMODE 2º: Open loop due to detected system malfunction
ªMODE 3º: Open loop due to driving conditions (power enrichment, deceleration enrichment)
ªMODE 4º: Closed loop - using oxygen sensor(s) as feedback for fuel control
ªMODE 5º: Open loop - has not yet satisfied condition to go to closed loop
CAL/LD VALUE [%]IThe calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [ÉC]
or [ÉF]IThe engine coolant temperature at the moment a malfunction is detected is displayed.
S-FUEL TRIM [%]IªShort-term fuel trimº at the moment a malfunction is detected is displayed.
IThe short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule.
L-FUEL TRIM [%]IªLong-term fuel trimº at the moment a malfunction is detected is displayed.
IThe long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule
than short-term fuel trim.
ENGINE SPEED [rpm]IThe engine speed at the moment a malfunction is detected is displayed.
VHCL SPEED [km/h]
or [mph]IThe vehicle speed at the moment a malfunction is detected is displayed.
*: The items are the same as those of 1st trip freeze frame data.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-71

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NISSAN PRIMERA 1999 Electronic Repair Manual DATA MONITOR MODENCEC0034S06
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]qqIIndicates the engine speed computed
from the REF signal (180É signal) of the
camsh

DATA MONITOR MODENCEC0034S06
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]qqIIndicates the engine speed computed
from the REF signal (180É signal) of the
camshaft position sensor.IAccuracy becomes poor if engine
speed drops below the idle rpm.
IIf the signal is interrupted while the
engine is running, an abnormal value
may be indicated.
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow
sensor is displayed.IWhen the engine is stopped, a cer-
tain value is indicated.
COOLAN TEMP/S
[ÉC] or [ÉF]qqIThe engine coolant temperature (deter-
mined by the signal voltage of the
engine coolant temperature sensor) is
displayed.IWhen the engine coolant tempera-
ture sensor is open or short-circuited,
ECM enters fail-safe mode. The
engine coolant temperature deter-
mined by the ECM is displayed.
HO2S1 (B1) [V]qqIThe signal voltage of the heated oxygen
sensor 1 (front) is displayed.
HO2S2 (B1) [V]qIThe signal voltage of the heated oxygen
sensor 2 (rear) is displayed.
HO2S1 MNTR (B1)
[RICH/LEAN]qIDisplay of heated oxygen sensor 1
(front) signal during air-fuel ratio feed-
back control:
RICH ... means the mixture became
ªrichº, and control is being affected
toward a leaner mixture.
LEAN ... means the mixture became
ªleanº, and control is being affected
toward a rich mixture.IAfter turning ON the ignition switch,
ªRICHº is displayed until air-fuel mix-
ture ratio feedback control begins.
IWhen the air-fuel ratio feedback is
clamped, the value just before the
clamping is displayed continuously.
HO2S2 MNTR (B1)
[RICH/LEAN]qIDisplay of heated oxygen sensor 2 (rear)
signal:
RICH ... means the amount of oxygen
after three way catalyst is relatively
small.
LEAN ... means the amount of oxygen
after three way catalyst is relatively
large.IWhen the engine is stopped, a cer-
tain value is indicated.
VHCL SPEED SE
[km/h] or [mph]qqIThe vehicle speed computed from the
vehicle speed sensor signal or ABS
actuator and electric unit (control unit)
signal is displayed.
BATTERY VOLT [V]qIThe power supply voltage of ECM is dis-
played.
THRTL POS SEN [V]qqIThe throttle position sensor signal volt-
age is displayed.
INT/A TEMP SE
[ÉC] or [ÉF]qIThe intake air temperature determined
by the signal voltage of the intake air
temperature sensor is indicated.
START SIGNAL
[ON/OFF]qqIIndicates [ON/OFF] condition from the
starter signal.IAfter starting the engine, [OFF] is
displayed regardless of the starter
signal.
CLSD THL/P SW
[ON/OFF]IIndicates mechanical contact [ON/OFF]
condition of the closed throttle position
switch.
CLSD THL POS
[ON/OFF]qqIIndicates idle position [ON/OFF] com-
puted by ECM according to the throttle
position sensor signal.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-72

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