Control NISSAN PRIMERA 1999 Electronic Repair Manual

Together with the DTC, the SRT code is cleared from the ECM memory using the method described later
(Refer to EC-SR-56). In addition, after engine control components/system are repaired or if the battery termi-
nals remain disconnected for more than 24 hours, all SRT codes may be cleared from the ECM memory.
How to Display SRT CodeNCEC0031S03011.With CONSULT-II
Selecting ªSRT STATUSº in ªDTC CONFIRMATIONº mode with CONSULT-II.
For items whose SRT codes are set, a ªCMPLTº is displayed on the CONSULT-II screen; for items whose
SRT codes are not set, ªINCMPº is displayed as shown below.
2.
With GST
Selecting Mode 1 with GST (Generic Scan Tool)
How to Set SRT CodeNCEC0031S0302To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long period of actual driving under various conditions. The most efficient driving pat-
tern in which SRT codes can be properly set is explained on the next page. The driving pattern should be
performed one or more times to set all SRT codes.
NEF249A
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
Emission-related Diagnostic Information (Cont'd)
EC-51

Items
(CONSULT-II screen terms)DTC*4
SRT codeTest value/Test
limit
(GST only)1st trip DTC*4Reference
page CONSULT-II
GST*2ECM*1
CYL 1 MISFIRE *5 P0301 0301 Ð Ð X EC-SR-224
CYL 2 MISFIRE *5 P0302 0302 Ð Ð X EC-SR-224
CYL 3 MISFIRE *5 P0303 0303 Ð Ð X EC-SR-224
CYL 4 MISFIRE *5 P0304 0304 Ð Ð X EC-SR-224
KNOCK SEN/CIRC-B1 P0325 0325 Ð Ð Ð EC-SR-230
CPS/CIRCUIT (OBD) *5 P0335 0335 Ð Ð X EC-SR-234
CAM POS SEN/CIRC P0340 0340 Ð Ð X EC-SR-239
TW CATALYST SYS-B1 *5 P0420 0420 X X X*3 EC-SR-246
PURG VOLUME CONT/V *5 P0443 0443 Ð Ð X EC-SR-250
VEH SPEED SEN/CIRC P0500 0500 Ð Ð X EC-SR-255
IACV/AAC VLV/CIRC *5 P0505 0505 Ð Ð X EC-SR-263
CLOSED TP SW/CIRC *5 *6 P0510 0510 Ð Ð X EC-SR-271
ECM *5 P0605 0605 Ð Ð X EC-SR-277
PNP SW/CIRC *5 P0705 0705 Ð Ð X AT section
ATF TEMP SEN/CIRC *5 P0710 0710 Ð Ð X AT section
IN PY SPD SEN/CIRC *5 P0715 0715 Ð Ð X AT section
VEH SPD SEN/CIR AT *5 P0720 0720 Ð Ð X AT section
ENGINE SPEED SIG *5 P0725 0725 Ð Ð X AT section
TCC SOLENOID/CIRC *5 P0740 0740 Ð Ð X AT section
L/PRESS SOL/CIRC *5 P0745 0745 Ð Ð X AT section
ENG OVER TEMP P1217 1217 Ð Ð X EC-SR-279
CPS/CIRC (OBD) COG *5 P1336 1336 Ð Ð X EC-SR-290
A/T DIAG COMM LINE *5 P1605 1605 Ð Ð X EC-SR-295
TP SEN/CIRC A/T *5 P1705 1705 Ð Ð X AT section
P-N POS SW/CIRCUIT *5 P1706 1706 Ð Ð X EC-SR-298
STEP MOTOR CIRC *5 P1777 1777 Ð Ð X AT section
STEP MOTOR FNC *5 P1778 1778 Ð Ð X AT section
LINE PRESSURE SEN *5 P1791 1791 Ð Ð X 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: These are not displayed with GST.
*4: 1st trip DTC No. is the same as DTC No.
*5: Not available for ªEastern Europe modelsº.
*6: CVT models only
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
Emission-related Diagnostic Information (Cont'd)
EC-55

HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATIONNCEC0031S06How to Erase DTC (With CONSULT-II)NCEC0031S0601NOTE:
If the diagnostic trouble code is not for CVT related items (see EC-SR-6), skip steps 2 through 4.
1. If the ignition switch stays ªONº after repair work, be sure to turn ignition switch ªOFFº once. Wait at least
9 seconds and then turn it ªONº (engine stopped) again.
2. Turn CONSULT-II ªONº and touch ªA/Tº.
3. Touch ªSELF-DIAG RESULTSº.
4. Touch ªERASEº. [The DTC in the TCM (Transmission control module) will be erased.] Then touch ªBACKº
twice.
5. Touch ªENGINEº.
6. Touch ªSELF-DIAG RESULTSº.
7. Touch ªERASEº. (The DTC in the ECM will be erased.)
IIf DTCs are displayed for both ECM and TCM (Transmission control module), they need to be erased
individually from the ECM and TCM (Transmission control module).
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
Emission-related Diagnostic Information (Cont'd)
EC-56

DESCRIPTIONNCEC0032
The MI is located on the instrument panel.
1. The MI will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
IIf the MI does not light up, refer to EL section (ªWARNING LAMPSº) or see EC-SR-329.
2. When the engine is started, the MI should go off.
If the MI remains on, the on board diagnostic system has detected an engine system malfunction.
On Board Diagnostic System FunctionNCEC0032S01The on board diagnostic system has the following four functions.
Diagnostic Test Mode I
1. BULB CHECK:
This function checks the MI bulb for damage (blown, open circuit, etc.).
If the MI does not come on, check MI circuit and ECM test mode selector. (See the following page.)
2. MALFUNCTION WARNING:
This is a usual driving condition. When a malfunction is detected twice in two consecutive driving cycles
(two trip detection logic), the MI will light up to inform the driver that a malfunction has been detected.
The following malfunctions will light up or blink the MI in the 1st trip.
IªMisfire (Possible three way catalyst damage)º
IªClosed loop controlº
IFail-safe mode
Diagnostic Test Mode II
3. SELF-DIAGNOSTIC RESULTS:
This function allows DTCs and 1st trip DTCs to be read.
4. HEATED OXYGEN SENSOR 1 (FRONT) MONITOR:
This function allows the fuel mixture condition (lean or rich), monitored by heated oxygen sensor 1 (front),
to be read.
MI Flashing without DTC
NCEC0032S0101If the ECM is in Diagnostic Test Mode II, MI may flash when engine is running. In this case, check ECM test
mode following ªHOW TO SWITCH DIAGNOSTIC TEST MODESº.
How to switch the diagnostic test (function) modes, and details of the above functions are described later.
(Refer to EC-SR-61.)
Condition Diagnostic Test Mode I Diagnostic Test Mode II
Ignition switch in ªONº position
Engine stopped
BULB CHECK SELF-DIAGNOSTIC RESULTS
Engine running
MALFUNCTION WARNINGHEATED OXYGEN SENSOR 1
(FRONT) MONITOR
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
SAT652J
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
Malfunction Indicator (MI) (Cont'd)
EC-59

Diagnostic Test Mode II Ð Front Heated Oxygen Sensor MonitorNCEC0032S06In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1 (front).
MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean
Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 (front) function, start engine in the Diagnostic Test Mode II and warm
it up until engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the
MI comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.
OBD System Operation ChartNCEC0033RELATIONSHIP BETWEEN MI, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMSNCEC0033S01IWhen a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
IWhen the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MI will come on. For details, refer to ªTwo Trip Detection Logicº on
EC-SR-48.
IThe MI will go off after the vehicle is driven 3 times with no malfunction. The drive is counted only when
the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs while counting,
the counter will reset.
IThe DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A)
without the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and Fuel
Injection System, the DTC and freeze frame data will be stored until the vehicle is driven 80 times (driv-
ing pattern C) without the same malfunction recurring. The ªTIMEº in ªSELF-DIAGNOSTIC RESULTSº
mode of CONSULT-II will count the number of times the vehicle is driven.
IThe 1st trip DTC is not displayed when the self-diagnosis results in ªOKº for the 2nd trip.
SUMMARY CHARTNCEC0033S02
Items Fuel Injection System Misfire Other
MI (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no display) 80 (pattern C) 80 (pattern C) 40 (pattern A)
1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B)
1st Trip Freeze Frame Data (clear) *1, *2 *1, *2 1 (pattern B)
For details about patterns ªBº and ªCº under ªFuel Injection Systemº and ªMisfireº, see EC-SR-65.
For details about patterns ªAº and ªBº under ªOtherº, see EC-SR-67.
*1: Clear timing is at the moment OK is detected.
*2: Clear timing is when the same malfunction is detected in the 2nd trip.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
Malfunction Indicator (MI) (Cont'd)
EC-63

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
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUTCamshaft position sensorXXXX
Mass air flow sensor X X X
Engine coolant temperature sen-
sorXXXXX
Heated oxygen sensor 1 (front) X X X X X
Heated oxygen sensor 2 (rear) X X X X X
Vehicle speed sensor or ABS
actuator and electric unit (control
unit)XXXX
Throttle position sensor X X X
Intake air temperature sensor X X X
Crankshaft position sensor (OBD)XXXX
Knock sensor X
Ignition switch (start signal) X X
Closed throttle position switch X X X
Closed throttle position switch
(throttle position sensor signal)XX
Air conditioner switch X X
Refrigerant pressure sensor X X
Park/Neutral position (PNP) switch X X X
Power steering oil pressure switch X X
Battery voltage X X
Electrical load X X
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-69

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

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

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

Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
AIR COND SIG
[ON/OFF]qqIIndicates [ON/OFF] condition of the air
conditioner switch as determined by the
air conditioning signal.
P/N POSI SW
[ON/OFF]qqIIndicates [ON/OFF] condition from the
PNP switch signal.
PW/ST SIGNAL
[ON/OFF]qqIIndicates [ON/OFF] condition of the
power steering oil pressure switch deter-
mined by the power steering oil pressure
switch signal.
LOAD SIGNAL
[ON/OFF]qqIIndicates [ON/OFF] condition from the
electrical load signal and/or lighting
switch.
ON ... rear defogger is operating and/or
lighting switch is on.
OFF ... rear defogger is not operating
and lighting switch is not on.
IGNITION SW
[ON/OFF]qIIndicates [ON/OFF] condition from igni-
tion switch.
HEATER FAN SW
[ON/OFF]qIIndicates [ON/OFF] condition from the
heater fan switch.
INJ PULSE -B1
[msec]qIIndicates the actual fuel injection pulse
width compensated by ECM according to
the input signals.IWhen the engine is stopped, a cer-
tain computed value is indicated.
B/FUEL SCHDL
[msec]IªBase fuel scheduleº indicates the fuel
injection pulse width programmed into
ECM, prior to any learned on board cor-
rection.
IGN TIMING [BTDC]qIIndicates the ignition timing computed by
ECM according to the input signals.
IACV-AAC/V [step]qIIndicates the IACV-AAC valve control
value computed by ECM according to
the input signals.
A/F ALPHA -B1 [%]qIIndicates the mean value of the air-fuel
ratio feedback correction factor per
cycle.IWhen the engine is stopped, a cer-
tain value is indicated.
IThis data also includes the data for
the air-fuel ratio learning control.
AIR COND RLY
[ON/OFF]qIIndicates the air conditioner relay control
condition determined by ECM according
to the input signals.
FUEL PUMP RLY
[ON/OFF]qIIndicates the fuel pump relay control
condition determined by ECM according
to the input signals.
COOLING FAN
[HI/LOW/OFF]qIIndicates the control condition of the
cooling fan determined by ECM accord-
ing to the input signals.
HI ... High speed operation
LOW ... Low speed operation
OFF ... Stop
HO2S1 HTR (B1)
[ON/OFF]IIndicates [ON/OFF] condition of heated
oxygen sensor 1 (front) heater deter-
mined by ECM according to the input
signals.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-73