2001 NISSAN PICK-UP Repair Manual

Diagnostic Procedure=NEEC0464
1 CHECK OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
700±50 rpm
If NG, adjust idle speed.
3. Push air conditioner switch ON and turn fan switch to 4-speed.
4. Recheck idle speed.
MEF634E
850 rpm or more
OK or NG
OK©INSPECTION END
NG©GO TO 2.
2 CHECK AIR CONDITIONER FUNCTION
Check if air conditioner compressor functions normally.
OK or NG
OK©GO TO 3.
NG©Refer to ªSymptom Tableº in ªTROUBLE DIAGNOSISº, HA section.
IACV-FICD SOLENOID VALVEKA24DE (EURO OBD)
Diagnostic Procedure
EC-3392

3 CHECK POWER SUPPLY
1. Stop engine.
2. Disconnect IACV-FICD solenoid valve harness connector.
SEF342V
3. Start engine, then push A/C switch ON and turn fan switch to 4-speed.
4. Check voltage between terminal 1 and ground with CONSULT-II or tester.
SEC281D
Voltage: Battery voltage
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E101, M5
+Harness for open or short between IACV-FICD solenoid valve and air conditioner relay
©Repair open circuit, short to ground or short to power in harness or connectors.
IACV-FICD SOLENOID VALVEKA24DE (EURO OBD)
Diagnostic Procedure
EC-3393

5 CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check harness continuity as follows.
MTBL1310
Continuity should exist.
3. Also check harness for short to ground or short to power.
OK or NG
OK©GO TO 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
MANUAL AIR CONDITIONER
Check the following.
+Harness connectors E101, M5
+IACV-FICD solenoid valve
+Ambient temperature switch
+Diode M83
+Harness connectors M5, E101
+Check the harness for open or short between air conditioner relay and ambient temperature switch
+Check the harness for open or short between diode M83 and ECM
+Check the harness for open or short between ambient temperature switch and ECM
+Check the harness for open or short between ambient temperature switch and ground
AUTO AIR CONDITIONER
Check the following.
+Harness connectors E101, M5
+IACV-FICD solenoid valve
+Diode M83
+Check the harness for open or short between air conditioner relay and ECM
+Check the harness for open or short between diode and A/C auto amp
+Check the harness for open or short between A/C auto amp and ECM
©Repair open circuit or short to power in harness or connectors.
IACV-FICD SOLENOID VALVEKA24DE (EURO OBD)
Diagnostic Procedure
EC-3394

7 CHECK IACV-FICD SOLENOID VALVE
Disconnect IACV-FICD solenoid valve harness connector.
SEC282D
+Check for clicking sound when applying 12V direct current to terminals.
+Check plunger for seizing or sticking.
+Check for broken spring.
SEF097K
OK or NG
OK©GO TO 8.
NG©Replace IACV-FICD solenoid valve.
8 CHECK AMBIENT AIR TEMPERATURE SWITCH
Refer to AC section, ªTROUBLE DIAGNOSISº.
OK or NG
OK©GO TO 9.
NG©Replace ambient air temperature switch.
9 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3123.
©INSPECTION END
IACV-FICD SOLENOID VALVEKA24DE (EURO OBD)
Diagnostic Procedure
EC-3395

Wiring DiagramNEEC0466
GEC260A
MI & DATA LINK CONNECTORSKA24DE (EURO OBD)
Wiring Diagram
EC-3396

GEC261A
MI & DATA LINK CONNECTORSKA24DE (EURO OBD)
Wiring Diagram
EC-3397

Fuel Pressure RegulatorNEEC0467
Fuel pressure at idling
kPa (bar, kg/cm2, psi)Vacuum hose is connected Approximately 235 (2.35, 2.4, 34)
Vacuum hose is disconnected Approximately 294 (2.94, 3.0, 43)
Idle Speed and Ignition TimingNEEC0468
Base idle speed*1 rpm No-load*3 (in ªNº position) 650±50
Target idle speed*2 rpm No-load*3 (in ªNº position) 700±50
Air conditioner: ON rpm In ªNº position 850 or more
Ignition timing*1 In ªNº position 15ɱ2É BTDC
*1: Throttle position sensor harness connector disconnected or using CONSULT-II ªWORK SUPPORTº mode
*2: Throttle position sensor harness connector connected
*3: Under the following conditions:
+Air conditioner switch: OFF
+Electrical load: OFF (Lights, heater fan & rear window defogger)
+Steering wheel: Kept in straight-ahead position
Ignition CoilNEEC0469
Primary voltage VBattery voltage 12
Primary resistance [at 20ÉC (68ÉF)]WApproximately 1.0
Secondary resistance [at 20ÉC (68ÉF)] kWApproximately 10
Mass Air Flow SensorNEEC0470
Supply voltage VBattery voltage (11 - 14)
Output voltage V0.9 - 1.8*
Mass air flow
(Using CONSULT-II or GST) g´m/sec0.9 - 5.8 at idle*
7.5 - 13.2 at 2,500 rpm*
*: Engine is warmed up to normal operating temperature and idling under no-load.
Engine Coolant Temperature SensorNEEC0471
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Fuel PumpNEEC0473
Resistance [at 25ÉC (77ÉF)]W0.2 - 5.0
IACV-AAC ValveNEEC0474
Resistance [at 25ÉC (77ÉF)]WApproximately 10.0
InjectorNEEC0475
Resistance [at 25ÉC (77ÉF)]W7.3 - 9.9
SERVICE DATA AND SPECIFICATIONS
(SDS)
KA24DE (EURO OBD)
Fuel Pressure Regulator
EC-3398

Throttle Position Sensor=NEEC0477
Throttle valve conditions Voltage (at normal operating temp., engine off, ignition switch on)
Completely closed (a)0.2 - 0.8V
Partially openBetween (a) and (b)
Completely open (b)3.5 - 4.5V
Heated Oxygen Sensor 1 HeaterNEEC0478
Resistance [at 25ÉC (77ÉF)]W2.3 - 4.3
Calculated Load ValueNEEC0479
Calculated load value %
(Using CONSULT-II or GST)
At idle9.5 - 34.0%
At 2,500 rpm13.9 - 24.9%
Intake Air Temperature SensorNEEC0480
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
80 (176) 0.27 - 0.38
Heated Oxygen Sensor 2 HeaterNEEC0483
Resistance [at 25ÉC (77ÉF)]W2.3 - 4.3
Crankshaft Position Sensor (OBD)NEEC0484
Resistance [at 20ÉC (68ÉF)]W512 - 632
SERVICE DATA AND SPECIFICATIONS
(SDS)
KA24DE (EURO OBD)
Throttle Position Sensor
EC-3399