sensor NISSAN PRIMERA 1999 Electronic Repair Manual

7 RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY
With CONSULT-II
NOTE:
Always warm up engine to normal operating temperature. If engine is cool, the throttle position sensor idle posi-
tion memory will not be reset correctly.
1. Start engine and warm it up to normal operating temperature.
2. Select ªCLSD THL POSº in ªDATA MONITORº mode with CONSULT-II.
3. Stop engine. (Turn ignition switch ªOFFº.)
4. Turn ignition switch ªONº and wait at least 5 seconds.
SEF864V
5. Turn ignition switch ªOFFº and wait at least 9 seconds.
6. Repeat steps 4 and 6 until ªCLSD THL POSº indication changes to ªONº.
SEF061Y
©GO TO 11.
8 CHECK CLOSED THROTTLE POSITION SWITCH IDLE POSITION
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Turn ignition switch ªONº.
4. Check voltage between ECM terminal 92 and ground with accelerator pedal fully released.
NEF239A
Voltage: 0.35 to 0.65V
OK©GO TO 6.
NG©GO TO 9.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONQG16I18DE
Basic Inspection (Cont'd)
EC-74

9 ADJUST THROTTLE POSITION SENSOR IDLE POSITION
Without CONSULT-II
1. Loosen throttle position sensor fixing bolts.
2. Turn throttle position sensor body clockwise or counterclockwise until the voltage between ECM terminal 92 and ground
becomes 0.35 to 0.65V.
SEF964W
3. Tighten the throttle position sensor fixing bolts.
©GO TO 10.
10 RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY
Without CONSULT-II
NOTE:
Always warm up engine to normal operating temperature. If engine is cool, the throttle position sensor idle posi-
tion memory will not be reset correctly.
1. Start engine and warm it up to normal operating temperature.
2. Stop engine. (Turn ignition switch ªOFFº.)
3. Turn ignition switch ªONº and wait at least 5 seconds.
SEF864V
4. Turn ignition switch ªOFFº and wait at least 9 seconds.
5. Repeat steps 4 and 6, 20 times.
©GO TO 11.
11 CHECK (1ST TRIP) DTC
1. Start engine and warm it up to normal operating temperature.
2. Rev (2,000 to 3,000 rpm) two or three times.
3. Make sure no (1st trip) DTC is displayed with CONSULT-II GST or Diagnostic Test Mode II (Self-diagnostic Results).
OK or NG
OK©GO TO 13.
NG©GO TO 12.
12 REPAIR MALFUNCTION
Repair or replace components as necessary according to corresponding ªDiagnostic Procedureº.
©GO TO 11.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONQG16I18DE
Basic Inspection (Cont'd)
EC-75

DTC Inspection Priority ChartNCEC0039If some DTCs are displayed at the same time, perform inspections one by one based on the following prior-
ity chart.
Priority Detected items (DTC)
1IP0100 Mass air flow sensor
IP0110 Intake air temperature sensor
IP0115 Engine coolant temperature sensor
IP0120 Throttle position sensor
IP0325 Knock sensor
IP0340 Camshaft position sensor (PHASE) circuit
IP0403 EGR volume control valve*
IP0500 Vehicle speed sensor
IP0605 ECM
IP0335, P1336 Crankshaft position sensor (POS)
IP1706 Park/Neutral position switch
2IP0130 - P0134 Heated oxygen sensor 1 (front)
IP0135 Heated oxygen sensor 1 heater (front)
IP0137 - P0140 Heated oxygen sensor 2 (rear)
IP0141 Heated oxygen sensor 2 heater (rear)
IP0443 EVAP canister purge volume control solenoid valve
IP1217 Overheat (cooling system)
IP1401 EGR temperature sensor*
3IP0171, P0172 Fuel injection system function
IP0300 - P0304 Misfire
IP0400, P1402 EGR function*
IP0420 Three way catalyst function
IP0505 IACV-AAC valve
IP 1111Intake valve timing control
*: If so equipped
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
DTC Inspection Priority Chart
EC-80

Fail-safe Chart=NCEC0040The ECM enters fail-safe mode if any of the following malfunctions is detected due to the open or short cir-
cuit. When the ECM enters the fail-safe mode, the MI illuminates.
DTC No.
Detected items Engine operating condition in fail-safe mode CON-
SULT-II
GSTECM*1
P0100 0100 Mass air flow sensor
circuitEngine speed will not rise more than 2,400 rpm due to the fuel cut.
P0115 0115 Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time
after turning ignition switch ªONº or ªSTARTº.
CONSULT-II displays the engine coolant temperature decided by ECM.
The radiator fan operates.
ConditionEngine coolant temperature decided
(CONSULT-II display)
Just as ignition switch is
turned ON or Start40ÉC (104ÉF)
More than approx. 4 minutes
after ignition ON or Start80ÉC (176ÉF)
Except as shown above40 - 80ÉC (104 - 176ÉF)
(Depends on the time)
P0120 0120 Throttle position sensor
circuitThrottle position will be determined based on the injected fuel amount and
the engine speed. Therefore, acceleration will be poor.
Condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
Unable to
access
ECMUnable to
access
Diagnostic
Test Mode
IIECMECM fail-safe activating condition
The computing function of the ECM was judged to be malfunctioning.
When the fail-safe system activates (i.e., if the ECM detects a malfunction
condition in the CPU of ECM), the MI on the instrument panel lights to warn
the driver.
However it is not possible to access ECM and DTC cannot be confirmed.
Engine control with fail-safe
When ECM fail-safe is operating, fuel injection, ignition timing, fuel pump
operation and IACV-AAC valve operation are controlled under certain limita-
tions.
ECM fail-safe operation
Engine speedEngine speed will not rise more than
3,000 rpm
Fuel injection Simultaneous multiport fuel injection system
Ignition timing Ignition timing is fixed at the preset valve
Fuel pumpFuel pump relay is ªONº when engine is
running and ªOFFº when engine stalls
IACV-AAC valve Full open
Replace ECM, if ECM fail-safe condition is confirmed.
*: In Diagnostic Test Mode II (Self-diagnostic results)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
Fail-safe Chart
EC-81

SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Crankshaft position sensor (POS) circuit 2 2 EC-QG-232
Camshaft position sensor (PHASE) circuit 3 2 3 EC-QG-238
Mass air flow sensor circuit11222 22 2EC-QG-110
Heated oxygen sensor 1 (front) circuit1232 22 2EC-QG-132
Engine coolant temperature sensor circuit112323223 2EC-QG-120
Throttle position sensor circuit 1 222222 2EC-QG-125
Incorrect throttle position sensor adjust-
ment31 11111 1EC-QG-72
Vehicle speed sensor circuit or ABS
actuator and electric unit (control unit) cir-
cuit2 3 3 3 EC-QG-267
Knock sensor circuit 2 3 EC-QG-228
ECM 22333333333EC-QG-282,
81
Start signal circuit 2 EC-QG-332
PNP switch circuit 3 3 3 3 3 EC-QG-313
Power steering oil pressure switch circuit 2 3 3 EC-QG-342
Electrical load signal circuit 3 3 EC-QG-351
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
Symptom Matrix Chart (Cont'd)
EC-83

SYSTEM Ð ENGINE MECHANICAL & OTHERNCEC0041S03
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FE section
Fuel piping 5 5 5 5 5 5
Ð Vapor lock
Valve deposit
5 555 55 5
Poor fuel (Heavy weight
gasoline, Low octane)
Air Air duct
55555 5 Air cleaner
Air leakage from air duct
(Mass air flow sensor Ð throttle
body)
5555
Throttle body, Throttle wireFE section
Air leakage from intake manifold/
Collector/GasketÐ
Cranking Battery
111111
11
EL section Alternator circuit
Starter circuit 3
Flywheel 6 EM section
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
Symptom Matrix Chart (Cont'd)
EC-84

CONSULT-II Reference Value in Data Monitor
Mode
NCEC0042Remarks:
ISpecification data are reference values.
ISpecification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
(i.e., Adjust ignition timing with a timing light before monitoring IGN TIMING. Specification data might be displayed even when igni-
tion timing is not adjusted to specification. This IGN TIMING monitors the data calculated by the ECM according to the input signals
from the camshaft position sensor and other ignition timing related sensors.)
IIf the real-time diagnosis results are NG, and the on board diagnostic system results are OK, when diagnosing the mass air flow sensor,
first check to see if the fuel pump control circuit is normal.
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEEDITachometer: Connect
IRun engine and compare tachometer indication with the CONSULT-II
value.Almost the same speed as the
CONSULT-II value.
MAS A/F SE-B1IEngine: After warming up
IAir conditioner switch: OFF
IShift lever: ªNº
INo-loadIdle 1.0 - 1.7V
2,500 rpm 1.5 - 2.1V
COOLAN TEMP/SIEngine: After warming up More than 70ÉC (158ÉF)
HO2S1 (B1)
IEngine: After warming upMaintaining engine speed at 2,000
rpm0 - 0.3V+,0.6 - 1.0V
HO2S1 MNTR (B1)LEAN+,RICH
Changes more than 5 times
during 10 seconds.
HO2S2 (B1)
IEngine: After warming upRevving engine from idle to 3,000
rpm quickly0 - 0.3V+,0.6 - 1.0V
HO2S2 MNTR (B1)LEAN+,RICH
VHCL SPEED SEITurn drive wheels and compare speedometer indication with the CON-
SULT-II valueAlmost the same speed as the
CONSULT-II value
BATTERY VOLTIIgnition switch: ON (Engine stopped) 11 - 14V
THRTL POS SENIEngine: Idle Throttle valve fully closed 0.35 - 0.65V
IIgnition switch: ON
(Engine stopped)Throttle valve fully opened 3.7 - 4.5V
EGR TEMP SEN*IEngine: After warming up Less than 4.5V
START SIGNALIIgnition switch: ON,START,ON OFF,ON,OFF
CLSD THL/P SW
CLSD THL POSIEngine: Idle Throttle valve: Idle position ON
IIgnition switch: ON
(Engine stopped)Throttle valve: Slightly open OFF
AIR COND SIGIEngine: After warming up, idle
the engineA/C switch ªOFFº OFF
A/C switch ªONº
(Compressor operates)ON
P/N POSI SWIIgnition switch: ONShift lever ªNº ON
Except above OFF
PW/ST SIGNALIEngine: After warming up, idle
the engineSteering wheel in neutral position
(forward direction)OFF
The steering wheel is turned ON
IGNITION SWIIgnition switch: ON,OFF ON,OFF
*: If so equipped
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
CONSULT-II Reference Value in Data Monitor Mode
EC-86

MONITOR ITEM CONDITION SPECIFICATION
HEATER FAN SWIHeater fan switch is ªONº ON
IHeater fan switch is ªOFF' OFF
CAL/LD VALUEIEngine: After warming up
IAir conditioner switch: OFF
IShift lever: ªNº
INo-loadIdle Not used
2,500 rpm Not used
ABSOL TH×P/SIEngine: Idle Throttle valve fully closed 0.0É
IIgnition switch: ON
(Engine stopped)Throttle valve fully opened Approx. 80É
MASS AIRFLOWIEngine: After warming up
IAir conditioner switch: OFF
IShift lever: N
INo-loadIdle 1.0 - 4.0 g×m/s
2,500 rpm 5.0 - 10.0 g×m/s
IDL A/V LEARNIIgnition switch: ONIDLE AIR VOL LEARN in ACTIVE
TEST has not been performedYET
IDLE AIR VOL LEARN in ACTIVE
TEST has already been performed
successfullyCMPLT
IDLE AIR VOL LEARN in ACTIVE
TEST has not been performed suc-
cessfullyINCMP
TRVL AFTER MILIIgnition switch: ONVehicle has traveled after MI has
turned ON.0 - 65,535 km
(0 - 40,722 mile)
Major Sensor Reference Graph in Data Monitor
Mode
NCEC0043The following are the major sensor reference graphs in ªDATA MONITORº mode.
(Select ªHI SPEEDº in ªDATA MONITORº with CONSULT-II.)
THRTL POS SEN, ABSOL TH×P/S, CLSD THL POSNCEC0043S01Below is the data for ªTHRTL POS SENº, ªABSOL TH×P/Sº and ªCLSD THL POSº when depressing the accel-
erator pedal with the ignition switch ªONº.
The signal of ªTHRTL POS SENº and ªABSOL TH×P/Sº should rise gradually without any intermittent drop or
rise after ªCLSD THL POSº is changed from ªONº to ªOFFº.
ENG SPEED, MAS A/F SE-B1, THRTL POS SEN, HO2S2 (B1), HO2S1 (B1),
INJ PULSE-B1
NCEC0043S02Below is the data for ªENG SPEEDº, ªMAS A/F SE-B1º, ªTHRTL POS SENº, ªHO2S1 (B1)º, ªHO2S2 (B1)º and
ªINJ PULSE-B1º when revving engine quickly up to 4,800 rpm under no load after warming up engine to nor-
mal operating temperature.
Each value is for reference, the exact value may vary.
Full
Release
Full
DepressCLSD THL POS -00"09 ABSOL TH P/S -00"09 THRTL POS SEN -00"09
10:22 +02"69 10:22 % +02"69 10:22 x0.1V +02"69
OFF ON 0 25 50 75 100 0 13 26 38 51
SEF580W
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
CONSULT-II Reference Value in Data Monitor Mode (Cont'd)
EC-88

NEF066A
lªENG SPEEDº should increase gradually while
depressing the accelerator pedal and should
decrease gradually after releasing
the pedal without any intermittent drop.
lªMAS A/F SE-B1º should increase when
depressing the accelerator pedal and should
decrease at the moment ªTHRTL POS SENº is
closed (accelerator pedal is released).
MAS A/F SE-B1 ENG SPEED
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
Major Sensor Reference Graph in Data Monitor Mode (Cont'd)
EC-89

SEF601Y
SEF170YA
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONQG16I18DE
Major Sensor Reference Graph in Data Monitor Mode (Cont'd)
EC-90