2001 NISSAN ALMERA engine

3 CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-II
1. Turn ignition switch ªOFFº.
2. Disconnect ECM relay. (For ECM relay location, refer to ªEngine Control Component Parts Locationº.)
3. Check harness continuity between ECM relay terminal 5 and EGR volume control valve terminals 2 and 5. Refer to
Wiring Diagram.
Continuity should exist.
OK or NG
OK©GO TO 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
4 CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-III
Check voltage between ECM relay terminal 3 and ground with CONSULT-II or tester.
SEF413Y
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E75, F36 (Sedan models and hatchback models with ECM in engine compartment)
+10A fuse
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between ECM relay terminals 3 and 5, 6 and 7.
SEF296X
OK or NG
OK©GO TO 7.
NG©Replace ECM relay.
EGR VOLUME CONTROL SYSTEMYD
Diagnostic Procedure (Cont'd)
EC-820

HATCHBACK MODELS WITH ECM IN ENGINE COMPARTMENTNJEC0787S02
HEC842
MI & DATA LINK CONNECTORSYD
Wiring Diagram (Cont'd)
EC-832

General SpecificationsNJEC0788Unit: rpm
Engine YD22DDT
Idle speed 725±25
Maximum engine speed 4,900
Injection NozzleNJEC0790Unit: kPa (bar, kg/cm2, psi)
Initial injection pressureNew 21,476 - 22,457 (214.7 - 224.5, 219 - 229, 3,114 - 3,256)
Limit 18,275 (182.7, 186, 2,650)
Engine Coolant Temperature SensorNJEC0791
Temperature ÉC (ÉF) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Crankshaft Position Sensor (TDC)NJEC0792
Resistance [at 20ÉC (68ÉF)]W495 - 605
Glow PlugNJEC0793
Resistance [at 25ÉC (77ÉF)]W0.8
Accelerator Position SensorNJEC0794
Throttle valve conditions Resistance between terminals 2 and 4 kW[at 25ÉC (77ÉF)]
Completely closed0.9 - 1.3
Partially open0.9 - 2.1
Completely open1.7 - 2.1
EGR Volume Control ValveNJEC0795
Resistance [at 25ÉC (77ÉF)]W13-17
SERVICE DATA AND SPECIFICATIONS (SDS)YD
General Specifications
EC-834

ELECTRICAL SYSTEM
SECTION
EL
CONTENTS
PRECAUTIONS...............................................................5
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............5
Wiring Diagrams and Trouble Diagnosis .....................5
HARNESS CONNECTOR................................................6
Description ...................................................................6
STANDARDIZED RELAY................................................8
Description ...................................................................8
POWER SUPPLY ROUTING.........................................10
Schematic/Sedan .......................................................10
Wiring Diagram - POWER -/Sedan With
Gasoline Engine ........................................................ 11
Wiring Diagram - POWER -/Sedan With Diesel
Engine ........................................................................19
Schematic/Hatchback ................................................26
Wiring Diagram - POWER -/Hatchback ....................28
Inspection...................................................................38
GROUND........................................................................39
Ground Distribution ....................................................39
COMBINATION SWITCH..............................................56
Check/Sedan .............................................................56
Check/Hatchback .......................................................57
Replacement ..............................................................58
STEERING SWITCH......................................................59
Check .........................................................................59
HEADLAMP...................................................................60
Wiring Diagram - H/LAMP -/Hatchback.....................60
Wiring Diagram - H/LAMP -/Sedan ...........................61
Trouble Diagnoses.....................................................63
Bulb Replacement .....................................................64
Aiming Adjustment .....................................................65
HEADLAMP - DAYTIME LIGHT SYSTEM -.................67
System Description ....................................................67
Schematic/Sedan .......................................................68
Wiring Diagram - DTRL -/Sedan ...............................69
Schematic/Hatchback ................................................72
Wiring Diagram - DTRL -/Hatchback .........................73
Trouble Diagnoses.....................................................76
Bulb Replacement .....................................................76Aiming Adjustment .....................................................77
HEADLAMP - HEADLAMP AIMING CONTROL -........78
Wiring Diagram - H/AIM -/Sedan...............................78
Wiring Diagram - H/AIM -/Hatchback ........................79
PARKING, LICENSE AND TAIL LAMPS.....................81
Wiring Diagram - TAIL/L -/Sedan ..............................81
Wiring Diagram - TAIL/L -/Hatchback ........................83
STOP LAMP..................................................................85
Wiring Diagram - STOP/L -/Sedan ............................85
Wiring Diagram - STOP/L -/Hatchback .....................86
BACK-UP LAMP............................................................87
Wiring Diagram - BACK/L -/Sedan ............................87
Wiring Diagram - BACK/L -/Hatchback .....................88
FRONT FOG LAMP.......................................................89
Wiring Diagram - F/FOG -/Sedan..............................89
Wiring Diagram - F/FOG -/Hatchback .......................90
Bulb Replacement .....................................................91
Aiming Adjustment .....................................................92
REAR FOG LAMP.........................................................93
Wiring Diagram - R/FOG -/Sedan .............................93
Wiring Diagram - R/FOG -/Hatchback.......................95
TURN SIGNAL AND HAZARD WARNING LAMPS.....96
System Description/Sedan ........................................96
Schematic/Sedan .......................................................98
Wiring Diagram - TURN -/Sedan...............................99
Trouble Diagnoses/Sedan .......................................101
Electrical Components Inspection ...........................101
System Description/Hatchback ................................102
Wiring Diagram - TURN -/Hatchback ......................103
Trouble Diagnoses/Hatchback.................................107
ILLUMINATION............................................................108
Schematic/Sedan .....................................................108
Wiring Diagram - ILL -/Sedan ..................................109
Schematic/Hatchback .............................................. 111
Wiring Diagram - ILL -/Hatchback ........................... 112
INTERIOR ROOM LAMP............................................. 115
System Description/Sedan With Interior Room
Lamp Timer .............................................................. 115

ELECTRICAL UNITS LOCATION...............................517
Engine Compartment ...............................................517
Passenger Compartment/LHD Models ....................518
Passenger Compartment/RHD Models ...................520
HARNESS LAYOUT....................................................522
How to Read Harness Layout .................................522
Outline/Sedan ..........................................................523
Outline/Hatchback....................................................525
Main Harness/Sedan ...............................................528
Main Harness/Hatchback.........................................532
Engine Room Harness/Sedan .................................536
Engine Room Harness/Hatchback ..........................542
Engine Control Harness/QG Engine Models...........546Engine Control Harness/YD Engine Models ...........550
Body Harness/Sedan ...............................................554
Body Harness/Hatchback ........................................562
Room Lamp Harness...............................................566
Front Door Harness/LHD Models ............................567
Front Door Harness/RHD Models ...........................569
Rear Door Harness..................................................571
Back Door Harness .................................................573
BULB SPECIFICATIONS............................................574
Headlamp.................................................................574
Exterior Lamp ..........................................................574
Interior Lamp............................................................574
WIRING DIAGRAM CODES (CELL CODES).............575
CONTENTS(Cont'd)
EL-4

Wiring Diagram Ð POWER Ð/Sedan With
Gasoline Engine
NJEL0006BATTERY POWER SUPPLY Ð IGNITION SW. IN ANY POSITIONNJEL0006S01
HEL451B
POWER SUPPLY ROUTING
Wiring Diagram Ð POWER Ð/Sedan With Gasoline Engine
EL-11

HEL352B
POWER SUPPLY ROUTING
Wiring Diagram Ð POWER Ð/Sedan With Gasoline Engine (Cont'd)
EL-12

HEL353B
POWER SUPPLY ROUTING
Wiring Diagram Ð POWER Ð/Sedan With Gasoline Engine (Cont'd)
EL-13