NISSAN PICK-UP 2001 Repair Manual

DIAGNOSTIC PROCEDURE
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connector.
Do approx. 12 volts exist between com-
pressor harness terminal No.
V1and body
ground?
No
cYes
Check magnet clutch coil.
NG
Replace magnet clutch.
Refer to HA-69 in D22 SER-
VICE MANUAL, Publication
No. SM7E-0D22G1.
Disconnect A/C relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C RELAY HARNESS TER-
MINAL NO.
V5AND COMPRESSOR
HARNESS TERMINAL NO.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK POWER SUPPLY FOR A/C
RELAY.
Disconnect A/C relay.
Do approx. 12 volts exist between A/C
relay harness terminal Nos.
V2,V3and
body ground?
Yes
cNo
CHECK POWER SUPPLY
CIRCUIT AND 10A (No.
13)
FUSE AT FUSE BLOCK.
Refer to EL section (ªWir-
ing Diagramº, ªPOWER
SUPPLY ROUTINGº).
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-3029.
OK
cNG
Replace A/C relay.
VA
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA175I
RHA176I
SHA620F
RHA177I
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-3027

VA
NoteNote
CHECK COIL SIDE CIRCUIT OF A/C
RELAY.
Do approx. 12 volts exist between ECM
harness terminal No.
V12orV15and body
ground?
Yes
cNo
Check circuit continuity
between A/C relay har-
ness terminal No.
V1and
ECM harness terminal No.
V12orV15.
Continuity should exist.
If OK, check harness for
short.
Note
CHECK VOLTAGE FOR THERMO CON-
TROL AMP.
Do approx. 12 volts exist between thermo
control amp. harness terminal No.
V3
and body ground?
Yes
cNoVB(Go to next page.)
CHECK POWER SUPPLY FOR
THERMO CONTROL AMP.
Do approx. 12 volts exist between thermo
control amp. harness terminal No.
V1
and body ground?
Yes
cNo
Check power supply circuit
and 10A fuse (No.
13,
located in the fuse block.)
(Refer to ªPOWER SUP-
PLY ROUTINGº in EL sec-
tion and Wiring Diagram.)
Note
CHECK THERMO CONTROL AMP.
Refer to HA-51 in D22 SERVICE
MANUAL, Publication No. SM7E-0D22G1.
OK
cNG
Replace thermo control
amp.
Note
Check circuit continuity between thermo
control amp. harness terminal No.
V2
and A/C auto amp. harness terminal No.
V4.
Continuity should exist.
If OK, check harness for short.
OK
Replace auto amp.
Note:
If the result is NG or No after checking circuit continuity,
repair harness or connector.
RHA335GF
SHA598FC
RHA338GA
RHA319GC
RHA498H
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-3028

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

Refrigerant Lines
+Refer to page HA-3002 regarding ªPrecautions for Refriger-
ant Connectionº.
YD ENGINE
RHA179I
SERVICE PROCEDURES
HA-3030

Checking Refrigerant Leaks
CHECKING PROCEDURE
To prevent inaccurate or false readings, make sure there is
no refrigerant vapor or tobacco smoke in the vicinity of the
vehicle. Perform the leak test in calm area (low air/wind
movement) so that the leaking refrigerant is not dispersed.
1. Turn engine off.
2. Connect a suitable A/C manifold gauge set to the A/C ser-
vice ports.
3. Check if the A/C refrigerant pressure is at least 345 kPa
(3.452 bar, 3.52 kg/cm
2, 50 psi) above 16ÉC (61ÉF). If less
than specification, evacuate and recharge the system with
the specified amount of refrigerant.
NOTE: At temperatures below 16ÉC (61ÉF), leaks may not be
detected since the system may not reach 345 kPa
(3.452 bar, 3.52 kg/cm
2, 50 psi).
4. Conduct the leak test from the high side to the low side at
points
jathroughjn. Refer to HA-3030.
Perform a leak check for the following areas carefully. Clean
the component to be checked and move the leak detector
probe completely around the connection/component.
+Compressor
Check the fitting of high and low pressure hoses, relief valve
and shaft seal.
+Liquid tank
Check the pressure switch, tube fitting, weld seams and the
fusible plug mounts.
+Service valves
Check all around the service valves. Ensure service valve
caps are secured on the service valves (to prevent leaks).
NOTE: After removing A/C manifold gauge set from service
valves, wipe any residue from valves to prevent any
false readings by leak detector.
+Cooling unit (Evaporator)
Turn blower fan on ªHighº for at least 15 seconds to dissipate
any refrigerant trace in the cooling unit. Insert the leak detec-
tor probe into the drain hose immediately after stopping the
engine. (Keep the probe inserted for at least ten seconds.)
5. If a leak detector detects a leak, verify at least once by
blowing compressed air into area of suspected leak, then
repeat check.
6. Do not stop when one leak is found. Continue to check for
additional leaks at all system components.
7. Start engine.
8. Set the heater A/C control as follows:
a. A/C switch ON
b. Face mode
c. Recirculation switch ON
d. Max cold temperature
e. Fan speed high
9. Run engine at 1,500 rpm for at least 2 minutes.
10. Turn engine off and perform leak check again following steps
4 through 6 above.
SERVICE PROCEDURESMANUAL AND AUTO
HA-3031

Refrigerant leaks should be checked immediately after stop-
ping the engine. Begin with the leak detector on the high
pressure line. The pressure in the high pressure line will
gradually drop after refrigerant circulation stops and pres-
sure in the low pressure line will gradually rise, as shown in
the graph. Leaks are more easily detected when pressure is
high.
11. Discharge A/C system using approved refrigerant recovery
equipment. Repair the leaking fitting or component as nec-
essary.
12. Evacuate and recharge A/C system and perform the leak test
to confirm no refrigerant leaks.
13. Conduct A/C performance test to ensure system works prop-
erly.
Compressor Mounting
SHA839E
RHA180I
SERVICE PROCEDURES
HA-3032

General Specifications
COMPRESSOR
ModelYD engine
modelExcept for YD
engine model
ZEXEL VALEO
CLIMATE CON-
TROL make
DKS-17CHZEXEL VALEO
CLIMATE CON-
TROL make
DKV-14C
Type Swash plate Vane rotary
Displacement cm
3(cu in) 168 (10.25) 140 (8.54)
Cylinder bore x stroke mm (in)37.0 x 25.8
(1.457 x 1.016)Ð
Direction of rotationClockwise
(Viewed from drive belt)
Drive belt Type A
LUBRICANT
ModelYD25 engine
modelExcept for
YD25 engine
model
ZEXEL VALEO
CLIMATE
CONTROL
make DKS-
17CHZEXEL VALEO
CLIMATE
CONTROL
make DKV-14C
Type KLH00-PAGS0 KLH00-PAGR0
Capacity
m!(lmp fl oz)Total in systemExcept ZD engine models:
200 (7.0)
ZD engine models: 300 (10.6)
Compressor
(Service parts)
charging
amountExcept ZD engine models:
200 (7.0)
ZD engine models: 300 (10.6)
Inspection and Adjustment
REFRIGERANT
YD engine modelExcept for YD25
engine model
Type HFC-134a (R-134a)
Capacity kg (lb)0.55 - 0.65
(1.21 - 1.43)0.60 - 0.70
(1.32 - 1.54)
ENGINE IDLING SPEED (When A/C is ON)
+Refer to EC section.
BELT TENSION
+Refer to MA section (ªChecking Drive
Beltsº).
SERVICE DATA AND SPECIFICATIONS
(SDS)MANUAL AND AUTO
HA-3033

GENERAL INFORMATION
SECTION
GI
MODIFICATION NOTICE:
+YD25DDTi engine has been adopted.
+KA24E engine has been replaced with KA24DE engine.
+The appearance design has been changed.
CONTENTS
CONSULT-II CHECKING SYSTEM..................... 3002
Function and System Application .................... 3002
Nickel Metal Hydride Battery Replacement ..... 3002
Checking Equipment ........................................ 3003
CONSULT-II Data Link Connector (DLC)
Circuit ............................................................... 3003IDENTIFICATION INFORMATION...................... 3004
Model Variation ................................................ 3004
Identification Number ....................................... 3005
Wheels and Tires ............................................. 3007
Dimensions ...................................................... 3007
This modification has been included in production starting with the following vehicle identification numbers
(Chassis number):
JN1APGD22U0050001
JN1BPGD22U0030001
JN1APUD22U0030001
JN1BPUD22U0070001
JN1CPUD22U0070001
JN1ADGD22U0020001
JN1BDGD22U0030001
JN1BDUD22U0030001
JN1CDUD22U0030001
JN1CPGD22U0040001
JN1CPGD22U0740101
JN1CDUD22U0740101
JN1CPUD22U0765101

GI

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

Checking Equipment
When ordering the below equipment, contact your NISSAN distributor.
Tool name Description
NISSAN CONSULT-II
V1CONSULT-II unit (Tester internal soft:
Resident version 3.2.0) and accesso-
ries
V2Program card AED01B-1 for
diagnostic, AEN00A/00B for NATS.
To confirm the best combination of
those softwares, refer to CONSULT-II
Operation Manual.
SGI083A
NOTE:
+The CONSULT-II must be used in conjunction with a program card.
CONSULT-II does not require loading (Initialization) procedure.
+Be sure the CONSULT-II is turned off before installing or removing a program card.
CONSULT-II Data Link Connector (DLC)
Circuit
INSPECTION PROCEDURE
If the CONSULT-II cannot diagnose the system properly, check the following items.
Symptom Check item
CONSULT-II cannot access
any system.+CONSULT-II DLC power supply circuit (Terminal 7) and ground circuit (Terminal 8)
(For detailed circuit, refer to ªMIL & Data Link Connectors Wiring Diagramº in EC section.)
+CONSULT-II DDL cable
CONSULT-II cannot access
individual system. (Other sys-
tems can be accessed.)+CONSULT-II program card (Check the appropriate CONSULT-II program card for the system.
Refer to ªChecking Equipmentº above.)
+Power supply and ground circuit for the control unite of the system
(For detailed circuit, refer to wiring diagram for each system.)
+Open or short circuit between the system and CONSULT-II DLC
(For detailed circuit, refer to wiring diagram for each system.)
SGI984-B
CONSULT-II CHECKING SYSTEM
GI-3003