2001 NISSAN PICK-UP oil temperature

DTC Confirmation Procedure .......................... 3308
Diagnostic Procedure....................................... 3309
DTC P1143 HO2S1.............................................. 3310
Component Description ................................... 3310
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3310
ECM Terminals and Reference Value ............. 3310
On Board Diagnosis Logic ............................... 3311
DTC Confirmation Procedure .......................... 3311
Overall Function Check ................................... 3312
Diagnostic Procedure....................................... 3312
DTC P1144 HO2S1.............................................. 3317
Component Description ................................... 3317
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3317
ECM Terminals and Reference Value ............. 3317
On Board Diagnosis Logic ............................... 3318
DTC Confirmation Procedure .......................... 3318
Overall Function Check ................................... 3319
Diagnostic Procedure....................................... 3319
DTC P1146 HO2S2.............................................. 3324
Component Description ................................... 3324
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3324
ECM Terminals and Reference Value ............. 3324
On Board Diagnosis Logic ............................... 3324
DTC Confirmation Procedure .......................... 3325
Overall Function Check ................................... 3326
Wiring Diagram ................................................ 3327
Diagnostic Procedure....................................... 3328
DTC P1147 HO2S2.............................................. 3334
Component Description ................................... 3334
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3334
ECM Terminals and Reference Value ............. 3334
On Board Diagnosis Logic ............................... 3334
DTC Confirmation Procedure .......................... 3335
Overall Function Check ................................... 3336
Wiring Diagram ................................................ 3337
Diagnostic Procedure....................................... 3338
DTC P1217 Engine Over Temperature............. 3344
On Board Diagnosis Logic ............................... 3344
Overall Function Check ................................... 3344
Diagnostic Procedure....................................... 3345
Main 11 Causes of Overheating ...................... 3348
DTC P1336 CKP Sensor (OBD)......................... 3349
Component Description ................................... 3349
ECM Terminals and Reference Value ............. 3349
On Board Diagnosis Logic ............................... 3350
DTC Confirmation Procedure .......................... 3350
Wiring Diagram ................................................ 3351
Diagnostic Procedure....................................... 3352
DTC P1706 PNP Switch..................................... 3355
Component Description ................................... 3355CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3355
ECM Terminals and Reference Value ............. 3355
On Board Diagnosis Logic ............................... 3355
DTC Confirmation Procedure .......................... 3356
Overall Function Check ................................... 3357
Wiring Diagram ................................................ 3358
Diagnostic Procedure....................................... 3359
Ignition Signal..................................................... 3361
Component Description ................................... 3361
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3361
ECM Terminals and Reference Value ............. 3362
Wiring Diagram ................................................ 3363
Diagnostic Procedure....................................... 3365
Injector................................................................. 3369
Component Description ................................... 3369
ECM Terminals and Reference Value ............. 3369
Wiring Diagram ................................................ 3370
Diagnostic Procedure....................................... 3371
Start Signal......................................................... 3374
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3374
ECM Terminals and Reference Value ............. 3374
Wiring Diagram ................................................ 3375
Diagnostic Procedure....................................... 3376
Fuel Pump........................................................... 3378
System Description .......................................... 3378
Component Description ................................... 3378
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3378
ECM Terminals and Reference Value ............. 3379
Wiring Diagram ................................................ 3380
Diagnostic Procedure....................................... 3381
Power Steering Oil Pressure Switch................ 3385
Component Description ................................... 3385
CONSULT-II Reference Value in Data Monitor
Mode ................................................................ 3385
ECM Terminals and Reference Value ............. 3385
Wiring Diagram ................................................ 3386
Diagnostic Procedure....................................... 3387
IACV-FICD Solenoid Valve................................ 3389
Component Description ................................... 3389
ECM Terminals and Reference Value ............. 3389
Wiring Diagram ................................................ 3390
Diagnostic Procedure....................................... 3392
MI & Data Link Connectors............................... 3396
Wiring Diagram ................................................ 3396
Service Data and Specifications (SDS)............ 3398
Fuel Pressure Regulator .................................. 3398
Idle Speed and Ignition Timing ........................ 3398
Ignition Coil ...................................................... 3398
Mass Air Flow Sensor...................................... 3398
Engine Coolant Temperature Sensor .............. 3398
EC-3004

System ChartNEEC0013
Input (Sensor) ECM Function Output (Actuator)
+Camshaft position sensor
+Mass air flow sensor
+Engine coolant temperature sensor
+Heated oxygen sensor 1
+Ignition switch
+Throttle position sensor
+PNP switch
+Air conditioner switch
+Knock sensor
+Crankshaft position sensor (OBD)
+Battery voltage
+Power steering oil pressure switch
+Vehicle speed sensor
+Intake air temperature sensor
+Heated oxygen sensor 2*1
+Closed throttle position switch*2Fuel injection & mixture ratio control Injectors
Distributor ignition system Power transistor
Idle air control systemIACV-AAC valve and IACV-FICD
solenoid valve
Fuel pump control Fuel pump relay
Heated oxygen sensor 1 monitor & on
board diagnostic systemMalfunction indicator
(On the instrument panel)
Heated oxygen sensors 1, 2 heater control Heated oxygen sensor heater
EVAP canister purge flow controlEVAP canister purge volume con-
trol solenoid valve
Air conditioning cut control Air conditioner relay
*1: Under normal conditions, this sensor is not for engine control operation.
*2: This switch will operate in place of the throttle position sensor to control EVAP parts if the sensor malfunctions.
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM
KA24DE (EURO OBD)
System Chart
EC-3023

Multiport Fuel Injection (MFI) System
DESCRIPTIONNEEC0014Input/Output Signal ChartNEEC0014S01
Sensor Input Signal to ECMECM func-
tionActuator
Camshaft position sensor Engine speed and piston position
Fuel injec-
tion & mix-
ture ratio
controlInjector Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 Density of oxygen in exhaust gas
Throttle position sensorThrottle position
Throttle valve idle position
PNP switch Gear position
Vehicle speed sensor Vehicle speed
Ignition switch Start signal
Air conditioner switch Air conditioner operation
Knock sensor Engine knocking condition
Battery Battery voltage
Power steering oil pressure switch Power steering operation
Heated oxygen sensor 2* Density of oxygen in exhaust gas
* Under normal conditions, this sensor is not for engine control operation.
Basic Multiport Fuel Injection SystemNEEC0014S02The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the camshaft position sensor and the mass air
flow sensor.
Various Fuel Injection Increase/Decrease CompensationNEEC0014S03In addition, the amount of fuel injected is compensated to improve engine performance under various oper-
ating conditions as listed below.

+During warm-up
+When starting the engine
+During acceleration
+Hot-engine operation
+High-load, high-speed operation

+During deceleration
+During high engine speed operation
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Multiport Fuel Injection (MFI) System
EC-3024

Air Conditioning Cut Control
DESCRIPTION=NEEC0016Input/Output Signal ChartNEEC0016S01
Sensor Input Signal to ECMECM func-
tionActuator
Air conditioner switch Air conditioner ªONº signal
Air condi-
tioner cut
controlAir conditioner relay Throttle position sensor Throttle valve opening angle
Camshaft position sensor Engine speed
Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Vehicle speed sensor Vehicle speed
Power steering oil pressure switch Power steering operation
System DescriptionNEEC0016S02This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
+When the accelerator pedal is fully depressed.
+When cranking the engine.
+When the engine coolant temperature becomes excessively high.
+When operating power steering and air conditioner during low engine speed or when fully releasing accel-
erator pedal.
+When engine speed is excessively low.
Fuel Cut Control (at no load & high engine
speed)
DESCRIPTIONNEEC0017Input/Output Signal ChartNEEC0017S01
Sensor Input Signal to ECMECM func-
tionActuator
Vehicle speed sensor Vehicle speed
Fuel cut
controlInjectors PNP switch Neutral position
Throttle position sensor Throttle position
Camshaft position sensor Engine speed
If the engine speed is above 3,000 rpm with no load, (for example, in Neutral and engine speed over 3,000
rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed.
Fuel cut will operate until the engine speed reaches 1,500 rpm, then fuel cut is cancelled.
NOTE:
This function is different from deceleration control listed under ªMultiport Fuel Injection (MFI) Systemº,
EC-3024.
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
Air Conditioning Cut Control
EC-3028

SEF500V
Fast Idle Cam (FIC)
COMPONENT DESCRIPTIONNEEC0502The FIC is installed on the throttle body to maintain adequate
engine speed while the engine is cold. It is operated by a volumet-
ric change in wax located inside the thermo-element. The thermo-
element is operated by engine coolant temperature.
For inspection refer to ªTROUBLE DIAGNOSIS-BASIC
INSPECTIONº, ªBasic Inspectionº, EC-3086.
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment
NEEC0028PREPARATIONNEEC0028S05+Make sure that the following parts are in good order.
a)Battery
b)Ignition system
c)Engine oil and coolant levels
d)Fuses
e)ECM harness connector
f)Vacuum hoses
g)Air intake system
(Oil filler cap, oil level gauge, etc.)
h)Fuel pressure
i)Engine compression
j)Throttle valve
k)EVAP system
+On models equipped with air conditioner, checks should be carried out while the air conditioner is
ªOFFº.
+When measuring ªCOº percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
+Turn off headlamps, heater blower.
+Keep front wheels pointed straight ahead.
BASIC SERVICE PROCEDUREKA24DE (EURO OBD)
Fast Idle Cam (FIC)
EC-3035

ENGINE CONTROL COMPONENT PARTS/CONTROL
SYSTEMS APPLICATION
NEEC0034S02
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOSTIC
RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTSRT
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STA-
TUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUTCamshaft position sensorXXXX
Mass air flow sensor X X X
Engine coolant temperature
sensorXXXXX
Heated oxygen sensor 1 X X X X X
Heated oxygen sensor 2 X X X X X
Vehicle speed sensorXXXX
Throttle position sensor X X X X
Intake air temperature sen-
sorXXX
Crankshaft position sensor
(OBD)X
Knock sensor X
Ignition switch (start signal) X X
Closed throttle position
switchXXX
Closed throttle position
switch (throttle position sen-
sor signal)XX
Air conditioner switch X X
Park/Neutral position (PNP)
switchXXX
Power steering oil pressure
switchXX
Air conditioner pressure
switchXX
Battery voltage X X
Ambient air temperature
switchXX
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
CONSULT-II
EC-3071

Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
THRTL POS SEN [V]jj+The throttle position sensor signal volt-
age is displayed.
INT/A TEMP SE
[ÉC] or [ÉF]jj+The intake air temperature determined
by the signal voltage of the intake air
temperature sensor is indicated.
START SIGNAL
[ON/OFF]jj+Indicates [ON/OFF] condition from the
starter signal.+After starting the engine, [OFF] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS
[ON/OFF]jj+Indicates idle position [ON/OFF] com-
puted by ECM according to the throttle
position sensor signal.
CLSD THL/P SW
[ON/OFF]j+Indicates mechanical contact [ON/OFF]
condition of the closed throttle position
switch.
AIR COND SIG
[ON/OFF]jj+Indicates [ON/OFF] condition of the air
conditioner switch as determined by
the air conditioning signal.
P/N POSI SW
[ON/OFF]jj+Indicates [ON/OFF] condition from the
PNP switch signal.
PW/ST SIGNAL
[ON/OFF]jj+Indicates [ON/OFF] condition of the
power steering oil pressure switch
determined by the power steering oil
pressure switch signal.
AMB TEMP SW
[ON/OFF]j+Indicates [ON/OFF] condition from the
ambient air temperature switch signal.
IGNITION SW
[ON/OFF]j+Indicates [ON/OFF] condition from igni-
tion switch.
INJ PULSE-B1 [msec]j+Indicates the actual fuel injection pulse
width compensated by ECM according
to the input signals.+When the engine is stopped, a cer-
tain computed value is indicated.
IGN TIMING [BTDC]j+Indicates the ignition timing computed
by ECM according to the input signals.
CAL/LD VALUE [%]+ªCalculated load valueº indicates the
value of the current airflow divided by
peak airflow.
ABSOL TH´P/S [%]+ªAbsolute throttle position sensorº indi-
cates the throttle opening computed by
ECM according to the signal voltage of
the throttle position sensor.
MASS AIRFLOW
[g´m/s]+Indicates the mass airflow computed by
ECM according to the signal voltage of
the mass air flow sensor.
IACV-AAC/V [%]j+Indicates the IACV-AAC valve control
value computed by ECM according to
the input signals.
PURG VOL C/V [%]+Indicates the EVAP canister purge vol-
ume control value computed by the
ECM according to the input signals.
+The opening becomes larger as the
value increases.
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
CONSULT-II
EC-3075

TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
IGNITION TIMING+Engine: Return to the original
trouble condition
+Timing light: Set
+Retard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.+Adjust initial ignition timing
IACV-AAC/V
OPENING+Engine: After warming up, idle
the engine.
+Change the IACV-AAC valve
opening percent using CON-
SULT-II.Engine speed changes according
to the opening percent.+Harness and connector
+IACV-AAC valve
POWER BAL-
ANCE+Engine: After warming up, idle
the engine.
+Air conditioner switch ªOFFº
+Shift lever ªNº
+Cut off each injector signal one
at a time using CONSULT-II.Engine runs rough or dies.+Harness and connector
+Compression
+Injectors
+Power transistor
+Spark plugs
+Ignition coils
ENG COOLANT
TEMP+Engine: Return to the original
trouble condition
+Change the engine coolant tem-
perature indication using CON-
SULT-II.If trouble symptom disappears, see
CHECK ITEM.+Harness and connector
+Engine coolant temperature sen-
sor
+Fuel injectors
FUEL PUMP
RELAY+Ignition switch: ON
(Engine stopped)
+Turn the fuel pump relay ªONº
and ªOFFº using CONSULT-II
and listen to operating sound.Fuel pump relay makes the operat-
ing sound.+Harness and connector
+Fuel pump relay
PURG VOL
CONT/V+Engine: After warming up, run
engine at 1,500 rpm.
+Change the EVAP canister
purge volume control solenoid
valve opening percent using
CONSULT-II.Engine speed changes according
to the opening percent.+Harness and connector
+EVAP canister purge volume
control solenoid valve
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
KA24DE (EURO OBD)
CONSULT-II
EC-3077