2003 NISSAN PICK-UP Engine control

Use the chart below to find out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to find
the location (page number) of each wiring diagram.
Code Section Wiring Diagram Name
AAC/V EC IACV-AAC Valve
A/C, A HA Auto Air Conditioner
A/C, M HA Manual Air Conditioner
A/CCUT EC Air Conditioner Control
AIRREG EC IACV-Air Regulator
AUDIO EL Audio
BACK/L EL Back-up Lamp
CHIME EL Warning Chime
CMPS EC Camshaft Position Sensor
COOL/F LC, EC Cooling Fan Control
ECTS ECEngine Coolant Temperature
Sensor
F/FOG EL Front Fog Lamp
FICD EC IACV-FICD Solenoid Valve
F/PUMP EC Fuel Pump
GLOW EC Quick-glow System
H/AIM EL Headlamp Aiming Control
IGNSYS EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
KS EC Knock Sensor
LOAD EC Electric Load Signal
MAFS EC Mass Air Flow SensorCode Section Wiring Diagram Name
MAIN ECMain Power Supply and Ground Cir-
cuit
METER ELSpeedometer, Tachometer, Temp.
and Fuel Gauges
MIL/DL EC MIL and Data Link Connectors
NATS EL Nissan Anti-theft System
O2H1B1 EC Heated Oxygen Sensor 1 Heater
O2H2B1 EC Heated Oxygen Sensor 2 Heater
O2S1B1 EC Heated Oxygen Sensor 1
O2S2B1 EC Heated Oxygen Sensor 2
PGC/V ECEVAP Canister Purge
Control Solenoid Valve
PNP/SW EC Park/Neutral Position Switch
POWER EL Power Supply Routing
PST/SW EC Power Steering Oil Pressure Switch
R/FOG EL Rear Fog Lamp
ROOM/L EL Interior Room Lamp
SRS RS Supplemental Restraint System
S/SIG EC Start Signal
TAIL/L EL Parking, License and Tail Lamps
TPS EC, AT Throttle Position Sensor
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WIRING DIAGRAM CODES (CELL CODES)
EL-4074

HEATER &
AIR CONDITIONER
SECTION
HA
MODIFICATION NOTICE:
lCompressor has been changed. (KA engine models)
lRefrigerant amount has been changed.
lFusible plug attached to liquid tank has been deleted.
lPressure relief valve has been added to compressor.
lWiring diagrams have been changed.
lThermo control amp. of auto A/C has been abolished and trouble diagnosis of magnet clutch has been
changed.
lPressure relief valve has been added to compressor. (KA24DE and YD25DDT engine models)
lRefrigerant amount has been changed. (YD25DDT engine models) Refer to SDS.
CONTENTS
MANUAL
PRECAUTIONS AND PREPARATION............... 4002
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER'' .. 4002
Precautions for Refrigerant Connection .......... 4003
DESCRIPTION..................................................... 4004
Refrigeration Cycle .......................................... 4004
TROUBLE DIAGNOSES..................................... 4005
Circuit Diagram - A/C, M - ............................... 4005
Wiring Diagram - A/C, M -/LHD Models with
KA, YD and ZD Engines .................................. 4006
Wiring Diagram - A/C, M -/RHD Models with
KA Engine ........................................................ 4009
Wiring Diagram - A/C, M -/RHD Models with
VG, YD and ZD Engines ................................. 4012
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 4015General Specifications ..................................... 4015
Inspection and Adjustment .............................. 4015
AUTO
PRECAUTIONS AND PREPARATION............... 4016
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER'' .. 4016
TROUBLE DIAGNOSES..................................... 4017
Circuit Diagram - A/C, A -................................ 4017
Wiring Diagram - A/C, A -................................ 4018
Magnet Clutch .................................................. 4023
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 4026
General Specifications ..................................... 4026
Inspection and Adjustment .............................. 4026

HA

General Specifications
COMPRESSOR
ModelZEXEL VALEO CLIMATE
CONTROL make DKS-17CH
Type Swash plate
Displacement cm
3(cu in) 168 (10.25)
Cylinder bore x stroke mm (in) 38.0 x 24.7 (1.50 x 0.972)
Direction of rotationClockwise
(Viewed from drive belt)
Drive belt Type A
LUBRICANT
ModelZEXEL VALEO CLIMATE
CONTROL make DKS-17CH
Type KLH00-PAGS0
Capacity
m!(lmp fl oz)Total in system 200 (7.0)
Compressor
(Service parts)
charging
amount200 (7.0)
Inspection and Adjustment
REFRIGERANT
YD engine Except YD engine
Type HFC-134a (R-134a)
Capacity kg (lb) 0.55 (1.21) 0.65 (1.43)
ENGINE IDLING SPEED (When A/C is ON)
lRefer to EC section.
BELT TENSION
lRefer to MA section (ªChecking Drive
Beltsº).
SERVICE DATA AND SPECIFICATIONS (SDS)MANUAL
HA-4015

General Specifications
COMPRESSOR
ModelZEXEL VALEO CLIMATE
CONTROL make DKS-17CH
Type Swash plate
Displacement cm
3(cu in) 168 (10.25)
Cylinder bore x stroke mm (in) 38.0 x 24.7 (1.50 x 0.972)
Direction of rotationClockwise
(Viewed from drive belt)
Drive belt Type A
LUBRICANT
ModelZEXEL VALEO CLIMATE
CONTROL make DKS-17CH
Type KLH00-PAGS0
Capacity
m!(lmp fl oz)Total in system 200 (7.0)
Compressor
(Service parts)
charging
amount200 (7.0)
Inspection and Adjustment
REFRIGERANT
YD engine Except YD engine
Type HFC-134a (R-134a)
Capacity kg (lb) 0.55 (1.21) 0.65 (1.43)
ENGINE IDLING SPEED (When A/C is ON)
lRefer to EC section.
BELT TENSION
lRefer to MA section (ªChecking Drive
Beltsº).
SERVICE DATA AND SPECIFICATIONS (SDS)AUTO
HA-4026

GENERAL INFORMATION
SECTION
GI
MODIFICATION NOTICE:
lKA24DE engine emission control system has been modified.
lAuto A/C for Europe has been modified.
CONTENTS
CONSULT-II CHECKING SYSTEM..................... 4002
Function and System Application .................... 4002
Nickel Metal Hydride Battery Replacement ..... 4002
Checking Equipment ........................................ 4003
CONSULT-II Data Link Connector (DLC)
Circuit ............................................................... 4003IDENTIFICATION INFORMATION...................... 4004
Model Variation ................................................ 4004
Identification Number ....................................... 4006
Dimensions ...................................................... 4006
This modification has been included in production starting with the following vehicle identification numbers
(Chassis number):
For Europe
JN1APGD22U0055001
JN1APUD22U0035001
JN1BPGD22U0032001
JN1BPUD22U0083001
JN1CPGD22U0045001
JN1CPUD22U0078001
JN1ADGD22U0021001
JN1BDGD22U0031001
JN1BDUD22U0031001
JN1CDUD22U0031001

GI

ELECTRICAL SYSTEM
SECTION
EL
MODIFICATION NOTICE:
lWiring diagrams have been changed.
lHarness layouts have been changed.
lFog lamp system has been changed.
lCD auto-changer has been added.
CONTENTS
PRECAUTIONS................................................... 4002
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER².. 4002
POWER SUPPLY ROUTING............................... 4003
Schematic ........................................................ 4003
Wiring Diagram - POWER -............................. 4004
COMBINATION SWITCH.................................... 4011
HEADLAMP - Headlamp Aiming Control -....... 4012
Wiring Diagram - H/AIM - ................................ 4012
PARKING, LICENSE AND TAIL LAMPS........... 4014
Wiring Diagram - TAIL/L -/LHD Models........... 4014
FRONT FOG LAMP............................................. 4016
Wiring Diagram - F/FOG -/LHD Models .......... 4016
Wiring Diagram - F/FOG -/RHD Models.......... 4017
REAR FOG LAMP............................................... 4018
Wiring Diagram - R/FOG -/LHD Models
without Front Fog Lamp................................... 4018
Wiring Diagram - R/FOG -/RHD Models
without Front Fog Lamp................................... 4019
Wiring Diagram - R/FOG -/LHD Models with
Front Fog Lamp ............................................... 4020
Wiring Diagram - R/FOG -/RHD Models with
Front Fog Lamp ............................................... 4022
INTERIOR ROOM LAMP..................................... 4023
Wiring Diagram - ROOM/L - ............................ 4023
ILLUMINATION.................................................... 4024
Wiring Diagram - ILL -/LHD Models ................ 4024
Wiring Diagram - ILL -/RHD Models................ 4026
METER AND GAUGES....................................... 4028
Wiring Diagram - METER -/Gasoline Engine
with Tachometer .............................................. 4028WARNING LAMPS.............................................. 4030
Schematic/With Tachometer ............................ 4030
Schematic/Without Tachometer ....................... 4031
Wiring Diagram - WARN -/Gasoline Engine
with Tachometer .............................................. 4032
Wiring Diagram - WARN -/Gasoline Engine
without Tachometer ......................................... 4036
Wiring Diagram - WARN -/Diesel Engine with
Tachometer ...................................................... 4040
Wiring Diagram - WARN -/Diesel Engine
without Tachometer ......................................... 4044
WARNING CHIME............................................... 4049
Wiring Diagram - CHIME -/LHD Models.......... 4049
AUDIO.................................................................. 4050
Wiring Diagram - AUDIO -/LHD Models .......... 4050
Wiring Diagram - AUDIO -/RHD Models ......... 4052
NATS (Nissan Anti-Theft System).................... 4054
Wiring Diagram - NATS -/LHD Models............ 4054
Wiring Diagram - NATS -/RHD Models ........... 4055
HARNESS LAYOUT............................................ 4056
Main Harness ................................................... 4056
Engine Room Harness..................................... 4062
Engine Control Harness................................... 4068
Chassis Harness and Tail Harness ................. 4071
Room Lamp Harness/LHD Models .................. 4072
Room Lamp Harness/RHD Models ................. 4073
WIRING DIAGRAM CODES (CELL CODES)..... 4074
SUPER MULTIPLE JUNCTION (SMJ)............... 4075
Terminal Arrangement ..................................... 4075

EL

Engine Control Harness
VG ENGINE
HEL970B
HARNESS LAYOUT
EL-4068

HEL971B
HARNESS LAYOUT
Engine Control Harness (Cont'd)
EL-4069