2001 NISSAN PICK-UP air condition

Removal
Preparation
1. Drain coolant from radiator drain plugs.
2. Remove the following parts.
+Engine hood
+Charge air cooler
+Under protector
+Battery
+Radiator shroud
+Radiator
+Accessory belt
+Cooling fan
+Exhaust front tube
Engine room (Left)
3. Remove air duct and air cleaner case.
4. Disconnect harness connectors from alternator and air con-
ditioner compressor.
5. Remove alternator.
6. Remove installation bolts. Relocate air conditioner compres-
sor. Use a rope to temporarily anchor it to vehicle side.
7. Disconnect and relocate heating hose, install blank cap to
hose to prevent coolant from leaking.
8. Remove heat insulator.
Engine room (Right)
9. Remove fuel feed and return hoses.
CAUTION:
Install blank caps immediately to avoid fuel leakage.
10. Remove all harness connectors on the engine, and move
harnesses to the side of the vehicle.
Vehicle underfloor
11. Remove starter motor.
12. Remove front propeller shaft.
13. Remove front final drive together with differential mounting
member. Refer to PD section (ªRemoval and Installationº,
ªFront final driveº) Ð 4WD models only.
14. Remove mounting bolts to secure the engine to transmission.
1) Lift transmission with the jack, and reinstall rear mount mem-
bers to the vehicle.
2) Position the jack to the front side of transmission.
3) Remove remaining mounting bolts securing the engine to
transmission.
SEM600F
ENGINE REMOVALYD25DDTi
EM-3064

HEATER &
AIR CONDITIONER
SECTION
HA
MODIFICATION NOTICE:
+Wiring Diagrams have been changed.
+Thermo switch has been abolished.
+A/C cycle for YD engine has been added.
CONTENTS
MANUAL AND AUTO
PRECAUTIONS AND PREPARATION............... 3002
Precautions for Refrigerant Connection .......... 3002
MANUAL
TROUBLE DIAGNOSES..................................... 3004
Wiring Diagram - HEATER -............................ 3004
Circuit Diagram - A/C, M - ............................... 3005
Wiring Diagram - A/C, M -/LHD Models with
KA, YD Engine ................................................. 3006
Wiring Diagram - A/C, M -/RHD Models with
KA, YD Engine ................................................. 3009
Magnet Clutch .................................................. 3012
AUTO
TROUBLE DIAGNOSES..................................... 3020
Circuit Diagram - A/C, A -................................ 3020
Wiring Diagram - A/C, A -................................ 3021
Magnet Clutch .................................................. 3026
SERVICE PROCEDURES................................... 3030
Refrigerant Lines.............................................. 3030
MANUAL AND AUTO
SERVICE PROCEDURES................................... 3031
Checking Refrigerant Leaks ............................ 3031
SERVICE PROCEDURES................................... 3032
Compressor Mounting...................................... 3032
MANUAL AND AUTO
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 3033
General Specifications ..................................... 3033
Inspection and Adjustment .............................. 3033

HA

VC
Note
Check circuit continuity between thermo
control amp. harness terminal No.
V3
and triple-pressure switch harness termi-
nal No.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK TRIPLE-PRESSURE SWITCH.
Refer to HA-22 in D22 SERVICE
MANUAL, Publication No. SM9E-
D22BG0.
OK
cNG
Replace triple-pressure
switch.
Note
Check circuit continuity between triple-
pressure switch harness terminal No.
V4
and ECM harness terminal No.V21orV46.
Continuity should exist.
If OK, check harness for short.
OK
Replace ECM.
Note:
If the result is NG or No after checking circuit continuity,
repair harness or connector.
ELECTRICAL COMPONENT INSPECTION
A/C Relay
Check continuity between terminal Nos. 3 and 5.
Conditions Continuity
12V direct current supply between
terminal Nos. 1 and 2Yes
No current supply No
If NG, replace relay.
RHA328GC
RHA340GC
RHA638H
.
. .
.
.
TROUBLE DIAGNOSESMANUAL
Magnet Clutch (Cont'd)
HA-3019

VB
Note
Check circuit continuity between thermo
control amp. harness terminal No.
V3
and triple-pressure switch harness termi-
nal No.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK TRIPLE-PRESSURE SWITCH.
Refer to HA-22 in D22 SERVICE
MANUAL, Publication No. SM9E-
D22BG0.
OK
cNG
Replace triple-pressure
switch.
Note
Check circuit continuity between triple-
pressure switch harness terminal No.
V4
and ECM harness terminal No.V21.
Continuity should exist.
If OK, check harness for short.
OK
Replace ECM.
Note:
If the result is NG or No after checking circuit continuity,
repair harness or connector.
ELECTRICAL COMPONENT INSPECTION
A/C Relay
Check continuity between terminal Nos. 3 and 5.
Conditions Continuity
12V direct current supply between
terminal Nos. 1 and 2Yes
No current supply No
If NG, replace relay.
RHA328GC
RHA178I
RHA638H
.
. .
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-3029

Function and System Application
Diagnostic test
modeFunction ENGINE A/T ABS AIR BAG
Work supportThis mode enables a technician to
adjust some devices faster and more
accurate by following the indications
on CONSULT-II.xxÐÐ
Self-diagnostic
resultsSelf-diagnostic results can be read
and erased quickly.xxxx
Trouble diagnos-
tic recordCurrent self-diagnostic results and all
trouble diagnostic records previously
stored can be read.ÐÐÐ x
ECU discrimi-
nated No.Classification number of a replace-
ment ECU can be read to prevent an
incorrect ECU from being installed.ÐÐÐ x
Data monitorInput/Output data in the ECU (ECM)
can be read.xxxÐ
DTC work sup-
portThis mode enables a technician to
set operating conditions to confirm
self-diagnosis status/results.ÐxÐÐ
Active testDiagnostic Test Mode in which CON-
SULT-II drives some actuators apart
from the ECMs and also shifts some
parameters in a specified range.xÐxÐ
ECU (ECM) part
numberECU (ECM) part number can be
read.xxxÐ
x: Applicable
Nickel Metal Hydride Battery Replacement
CONSULT-II contains a nickel metal hydride battery. When replacing the battery obey the following:
WARNING:
Replace the nickel metal hydride battery with Genuine CONSULT-II battery only. Use of another bat-
tery may present a risk of fire or explosion. The battery may present a fire or chemical burn hazard
if mistreated. Do not recharge, disassemble of dispose of in fire.
Keep the battery out of reach of children and discard used battery conforming to the local regula-
tions.
CONSULT-II CHECKING SYSTEM
GI-3002

MAINTENANCE
SECTION
MA
MODIFICATION NOTICE:
+KA24DE engine information has been added. Refer to the Service Manual of D22 Supplement-II (SM9E-
D22BE0E) for the maintenance procedure not included here.
+YD25DDTi engine has been added.
CONTENTS
PERIODIC MAINTENANCE................................ 3002
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year) ................ 3002
Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year) ................ 3003
Maintenance Under Severe Driving Conditions
(Annual Driving Distance < 30,000 km/year)... 3004
Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year) ................ 3005
Maintenance Schedule for Diesel Engines
(Annual Mileage > 30,000 km/year) ................ 3006
Maintenance Under Severe Driving Conditions
(Annual Driving Distance > 30,000 km/year)... 3007
RECOMMENDED FLUIDS AND
LUBRICANTS...................................................... 3008
Fluids and Lubricants....................................... 3008
SAE Viscosity Number..................................... 3009
KA24DE
ENGINE MAINTENANCE.................................... 3010Changing Air Cleaner Filter ............................. 3010
Changing Positive Crankcase Ventilation
(PCV) Filter ...................................................... 3010
YD25DDTi
ENGINE MAINTENANCE.................................... 3011
Checking Tightening Torque............................ 3011
Checking Drive Belts ....................................... 3011
Changing Engine Oil ........................................ 3012
Changing Oil Filter ........................................... 3013
Changing Engine Coolant ................................ 3014
Checking Cooling System................................ 3016
Checking and Replacing Fuel Filter and
Draining Water ................................................. 3018
Checking Fuel Lines ........................................ 3019
Cleaning and Replacing Air Cleaner Filter ...... 3019
Checking Cyclone Pre-air Cleaner .................. 3019
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 3020
Engine Maintenance ........................................ 3020

MA

The following tables show the normal maintenance schedule. Depending upon weather and atmospheric
conditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent
maintenance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year)
KA24DE ENGINE
Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
pages Perform on a kilometer basis, but on an
annual basis when driving less than
15,000 km (9,000 miles) per yearkm x 1,000
(miles x 1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Engine compartment and under vehicle
Engine oil (Use API SG, SH or SJ oil)HR RRRRRRR Ð
Engine oil filter (Use NISSAN genuine
part or equivalent)HR RRRRRRR Ð
Drive belts IIIIIIII Ð
Cooling system IIIIIIII Ð
Engine anti-freeze coolant (Use genuine
NISSAN Anti-Freeze Coolant (L250) or
equivalent)See NOTE (1) I R I Ð
Air cleaner filter (Viscous paper type)HR R 3010
Positive crankcase ventilation (PCV) fil-
terHRRRR3010
Intake and exhaust valve clearance See NOTE (2) Ð
Fuel and EVAP vapour linesIIIIÐ
Spark plugsRRRRÐ
Ignition wires I I Ð
Fuel filterHRÐ
NOTE: (1) First replace at 90,000 km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform ªIº
(Checking the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(2) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driv-
ing Conditionsº.
PERIODIC MAINTENANCE
MA-3002

Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year)
YD25DDTi ENGINE
Abbreviations: R = Replace I = Inspect: Correct or replace if necessary, C = Clean D = Check filter and drain water
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference pages Perform on a kilometer basis, but
on an annual basis when driving
less than 20,000 km (12,000
miles) per year.km x 1,000
(miles x 1,000)
Months20
(12)
1240
(24)
2460
(36)
3680
(48)
48100
(60)
60120
(72)
72
Engine compartment and under vehicle
Engine oil (For 2WD or 4WD
appearance 2WD models, use
API CF-4 oil)HRRRRRR3012
Engine oil (For 4WD use API
CF-4 oil)HReplace every 10,000 km (6,000 miles) or 12 months 3012
Engine oil filter (Use Eco filter or
equivalent)HSee NOTE (1)RRRRRR3013
Drive beltsIIIIII3011
Cooling systemIIIIII3016
Engine anti-freeze coolant (Use
genuine NISSAN Anti-freeze
Coolant (L250) or equivalent)See NOTE
(2)I R 3014
Air cleaner filter (Viscous paper
type)HR R R 3019
Air cleaner filter (Dry paper
type)HCRCRCR3019
Cyclone pre-air cleanerHIIIIII3019
Intake & exhaust valve clear-
anceSee NOTE
(3)*1
Fuel lines I I I 3019
Injection nozzlesSee NOTE
(4)*2
Fuel filterHDRDRDR3018
NOTE: (1) Oil filter element assembly (Part No. 15208 AD200) and O-ring seal (Part No. 15226 AD200) are replacement parts.
(2) First replace at 100,000 km (60,000 miles)/60 months, then every 60,000 km (36,000 miles)/36 months. After first
replacement, perform ªIº (checking the mixture ratio and correcting the mixture ratio if necessary) at the middle
of replacement interval.
(3) If valve noise increases, check valve clearance.
(4) If engine power decreases, black exhaust smoke is emitted or engine noise increases, check injection nozzles and
if necessary, replace injection nozzle assembly.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driv-
ing Conditionsº.
*1: ªValve Clearance Inspection and Adjustmentº in EM section
*2: ªInjection Tube and Injection Nozzleº in EC section
PERIODIC MAINTENANCE
MA-3003