2005 NISSAN NAVARA diagram

EC-5
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ECA . 303
ECM Terminals and Reference Value .................. 303
Wiring Diagram .................................................... 304
Diagnostic Procedure ........................................... 305
Component Inspection ......................................... 307
Removal and Installation ...................................... 308
TC BOOST CONTROL SOLENOID VALVE ........... 309
Description ........................................................... 309
ECM Terminals and Reference Value .................. 310
Wiring Diagram ..................................................... 311
Diagnostic Procedure ........................................... 312
Component Inspection ......................................... 313
Removal and Installation ...................................... 313
INTAKE AIR CONTROL VALVE CONTROL SOLE-
NOID VALVE ........................................................... 314
Description ........................................................... 314
ECM Terminals and Reference Value .................. 314
Wiring Diagram .................................................... 315
Diagnostic Procedure ........................................... 316
Component Inspection ......................................... 318
HEAT UP SWITCH .................................................. 319
Description ........................................................... 319
CONSULT-II Reference Value in Data Monitor Mode
. 319
ECM Terminals and Reference Value .................. 319
Wiring Diagram .................................................... 320
Diagnostic Procedure ........................................... 321
Component Inspection ......................................... 324
REFRIGERANT PRESSURE SENSOR ................. 325
Component Description ........................................ 325
ECM Terminals and Reference Value .................. 325
Wiring Diagram .................................................... 326
Diagnostic Procedure ........................................... 327
Removal and Installation ...................................... 329
BRAKE SWITCH .................................................... 330
Description ........................................................... 330
CONSULT-II Reference Value in Data Monitor Mode.330
ECM Terminals and Reference Value ...................330
Wiring Diagram .....................................................331
Diagnostic Procedure ...........................................332
Component Inspection ..........................................341
PNP SWITCH ..........................................................342
Description ............................................................342
CONSULT-II Reference Value in Data Monitor Mode
.342
ECM Terminals and Reference Value ...................342
Wiring Diagram .....................................................343
Diagnostic Procedure ...........................................344
START SIGNAL ......................................................348
Wiring Diagram .....................................................348
Diagnostic Procedure ...........................................349
ASCD INDICATOR ..................................................351
Component Description ........................................351
Wiring Diagram .....................................................352
Diagnostic Procedure ...........................................353
MI & DATA LINK CONNECTORS ...........................354
Wiring Diagram .....................................................354
AUTOMATIC SPEED CONTROL DEVICE (ASCD). 355
System Description ...............................................355
Component Description ........................................356
SERVICE DATA AND SPECIFICATIONS (SDS) ....357
General Specifications ..........................................357
Mass Air Flow Sensor ...........................................357
Intake Air Temperature Sensor .............................357
Engine Coolant Temperature Sensor ...................357
Fuel Rail Pressure Sensor ....................................357
Fuel Injector ..........................................................357
Glow Plug .............................................................357
EGR Volume Control Valve ..................................357
Crankshaft Position Sensor ..................................357
Camshaft Position Sensor ....................................357
Fuel Pump ............................................................358

PRECAUTIONS
EC-13
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EC
Wiring Diagrams and Trouble DiagnosisEBS01KC8
When you read Wiring diagrams, refer to the following:
lGI-15, "How to Read Wiring Diagrams".
lPG-4, "POWER SUPPLY ROUTING CIRCUIT"for power distribution circuit
When you perform trouble diagnosis, refer to the following:
lGI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES".
lGI-24, "How to Perform Efficient Diagnosis for an Electrical Incident".

ENGINE CONTROL SYSTEM
EC-15
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EC
ENGINE CONTROL SYSTEMPFP:23710
System DiagramEBS01KCB
MBIB1287E

EC-16
ENGINE CONTROL SYSTEM
Vacuum Hose Drawing
EBS01KCC
LEFT SIDE OF THE ENGINE ROOM
Refer toEC-15, "System Diagram"for Vacuum Control System.
MBIB1387E
: Vehicle front
1. Turbocharger boost control
solenoid valve2. Turbocharger control actuator A. From next page
NOTE: Do not use soapy water or any type of solvent while installing vacuum hose.

ENGINE CONTROL SYSTEM
EC-17
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EC
RIGHT SIDE OF THE ENGINE ROOM
Refer toEC-15, "System Diagram"for Vacuum Control System.
MBIB1288E
: Vehicle front
1. Fuel rail 2. Intake air control valve control
solenoid valve3. Vacuum pump
4. Intake air control valve actuator A. To previous page
NOTE: Do not use soapy water or any type of solvent while installing vacuum hose.

EC-50
TROUBLE DIAGNOSIS
Circuit Diagram
EBS01KCY
MBWA1032E

EC-72
POWER SUPPLY AND GROUND CIRCUIT
Wiring Diagram
EBS01KD7
MBWA1034E

EC-74
POWER SUPPLY AND GROUND CIRCUIT
4.CHECK GROUND CONNECTIONS-I
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer toEC-78, "
Ground Inspection".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 2, 3, 114 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors F4, E9
lHarness for open or short between ECM and ground
>> Repair open circuit or short to power in harness or connectors.
: Vehicle front
1. Body ground E21 2. ECM 3. Body ground E41
4. A/C high-pressure service valve 5. ABS actuator and electric unit
(control unit)6. Body ground E61
MBIB1218E
Continuity should exist.