2004 NISSAN PATROL check engine

Function and System Application
Diagnostic test mode Function ENGINE A/T ABSAIR
BAGNATS*1SMART
EN-
TRANCE
Work supportThis mode enables a technician to adjust
some devices faster and more accurate by
following the indications on CONSULT-II.x*2x*4ÐÐÐÐ
Self-diagnostic resultsSelf-diagnostic results can be read and
erased quickly.xxxxxÐ
Trouble diagnostic
recordCurrent self-diagnostic results and all trouble
diagnostic records previously stored can be
read.ÐÐÐxÐÐ
ECU discriminated
No.Classi®cation number of a replacement ECU
can be read to prevent an incorrect ECU
from being installed.ÐÐÐxÐÐ
Data monitorInput/Output data in the ECU (ECM) can be
read.xxxÐÐÐ
DTC work supportThis mode enables a technician to set oper-
ating conditions to con®rm self-diagnosis
status/results.Ð x ÐÐÐÐ
Active testDiagnostic Test Mode in which CONSULT-II
drives some actuators apart from the ECMs
and also shifts some parameters in a speci-
®ed range.xÐxÐÐÐ
ECU (ECM) part num-
berECU (ECM) part number can be read. x x x Ð Ð Ð
Control unit initializa-
tionAll registered ignition key IDs in NATS com-
ponents can be initialized and new IDs can
be registered.ÐÐÐÐ x Ð
Self-function checkECM checks its own NATS communication
interface.ÐÐÐÐx*3Ð
DTC con®rmationThe results of SRT (System Readiness Test)
and the self-diagnosis status/results can be
con®rmed.x*2ÐÐÐÐÐ
REMO CONT ID SET
UPA maximum of four IDs (identi®cations) can
be registered in the memory using the
remote controller. These IDs can be also be
con®rmed and erased as required.ÐÐÐÐÐ x
Function testConducted by CONSULT-II instead of a
technician to determine whether each sys-
tem is ªOKº or ªNGº (No Good).xxxxÐÐ
x: Applicable
*1: NATS (Nissan Anti-Theft System)
*2: Not available for diesel engine models.
*3: Except for ZD30DDTi engine models.
*4: RE4R03A models only
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 ®re or explosion. The battery may present a ®re or chemical burn hazard if
mistreated. Do not recharge, disassemble or dispose of in ®re.
Keep the battery out of reach of children and discard used battery conforming to the local regulations.
CONSULT-II CHECKING SYSTEM
GI-4002

Checking Equipment
When ordering the below equipment, contact your NISSAN distributor.
Tool name Description
NISSAN CONSULT-II
j
1CONSULT-II unit (Tester
internal software: Resi-
dent version 3.3.0) and
accessories
j
2Program card AED01C
and AEN00A or AEN00B
(For NATS)
SGI100A
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
(For TD42Ti engine models and TD engine models with NATS)
TGI005M
CONSULT-II CHECKING SYSTEM
GI-4003

(For ECM equipped models except TD42Ti engine and TD engine with NATS)
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 8) and ground circuit (Terminal 4)
(For detailed circuit, refer to EC section, ªMIL & DATA LINK CONNECTORSº.)
+CONSULT-II (DDL) cable
CONSULT-II cannot access indi-
vidual system. (Other systems
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 unit 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.)
TGI006M
CONSULT-II CHECKING SYSTEM
CONSULT-II Data Link Connector (DLC) Circuit
(Cont'd)
GI-4004

\
HEATER&
AIR CONDITIONER
SECTION
HA
MODIFICATION NOTICE:
+ Wiring diagram has been changed.
+ Automatic A/C controller has been changed.
+ Front thermo amp. for auto A/C has been eliminated.
CONTENTS
AUTO
DESCRIPTION ...........................................................4002
Features (TB48 Engine Models) ...........................4002
REAR HEATER
TROUBLE DIAGNOSES ...........................................4003
Wiring Diagram Ð R/HEAT Ð/LHD Models .........4003
Wiring Diagram Ð R/HEAT Ð/RHD Models .........4004
MANUAL
TROUBLE DIAGNOSES ...........................................4005
Wiring Diagram Ð A/C, M Ð/Wagon and
Hardtop Models with ZD Engine ...........................4005
AUTO
DESCRIPTION...........................................................4007
Control Operation ..................................................4007
TROUBLE DIAGNOSES ...........................................4008
Circuit Diagram Ð A/C, A Ð/TB48 Engine ...........4008
Wiring Diagram Ð A/C, A Ð/TB48 Engine ...........4009
Circuit Diagram Ð A/C, A Ð/TB45 Engine ...........4013
Wiring Diagram Ð A/C, A Ð/TB45 Engine ...........4014
Circuit Diagram Ð A/C, A Ð/TD Engine ...............4017
Wiring Diagram Ð A/C, A Ð/TD Engine ...............4018
Circuit Diagram Ð A/C, A Ð/ZD Engine ...............4021
Wiring Diagram Ð A/C, A Ð/ZD Engine ...............4022
Self-diagnosis ........................................................4025
Operational Check .................................................4032
A/C System ............................................................4034 Mode Door Motor...................................................4035
Air Mix Door Motor ................................................4036
Intake Door Motor ..................................................4037
Blower Motor..........................................................4038
Magnet Clutch........................................................4039
Insufficient Cooling ................................................4052
Insufficient Heating ................................................4053
Self-diagnosis ........................................................4054
REAR COOLER
TROUBLE DIAGNOSES ...........................................4055
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Auto A/C .......................................................4055
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Manual A/C Except for TB45E Engine ........4057
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Manual A/C for TB45E Engine.....................4059
Wiring Diagram Ð R/COOL Ð/RHD Models with
Front Auto A/C .......................................................4061
Wiring Diagram Ð R/COOL Ð/RHD Models with
Front Manual A/C...................................................4063
COOL BOX
TROUBLE DIAGNOSES ...........................................4065
Wiring Diagram Ð COOL/B Ð/All Engines
Except TB48 and TB45E Wagon Models for the
Middle East ............................................................4065
Wiring Diagram Ð COOL/B Ð/TB48 and TB45E
Engine Wagon Models for the Middle East...........4066
HA-4001

STEP-BY-STEP PROCEDURE
Set mode control dial to AUTO.
Set temperature control dial to 25ÉC.
Set fan control dial to OFF.
Turn ignition switch ON.
Set in self-diagnostic mode. Within 10 sec-
onds after starting engine (ignition switch is
turned ªONº.), press A/C switch for at least
5 seconds.
STEP 1 - LEDs ARE CHECKED.
Do all LEDs illuminate?
Ye s
cNo
Malfunctioning A/C switch
or LED.
Replace A/C auto amp.
Set fan control dial to AUTO.
Advance to self-diagnosis STEP 2?
Ye s
cNo
Malfunctioning fan control
dial.
Replace A/C auto amp.
Set fan control dial to OFF.
Return to self-diagnosis STEP 1?
Ye s
cNo
Malfunctioning fan control
dial.
Replace A/C auto amp.
Set fan control dial to AUTO.
jA
(Go to next page.)
RHA409I
.
.
.
.
.
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Self-diagnosis (Cont'd)
HA-4027

jC
STEP 4 - OPERATION OF EACH ACTUA-
TOR IS CHECKED.
Engine running.
Refer to the following chart and con®rm
discharge air ¯ow, air temperature, blower
motor voltage and compressor operation.
Checks must be made visually, by lis-
tening to any noise, or by touching air
outlets with your hand, etc. for
improper operation.
OK
cNG
+Air outlet does not
change.
Go to HA-4035.
+Intake door does not
change.
Go to HA-4037.
+Discharge air tempera-
ture does not change.
Go to HA-4036.
+Magnet clutch does not
engage.
Go to HA-4039.
+Blower motor operation is
malfunctioning.
Go to HA-4038.
Turn ignition switch OFF or press intake
switch.
END
Mode
control
dial
positionActuator test pattern
Mode doorIntake
doorAir mix
doorBlower
motorCom-
pressor
AUTOVENT
RECFull
Cold4-5V ON
VENTVENT
RECFull
Cold9 - 11V ON
B/LB/L
RECFull
Cold7-9V OFF
FOOTFOOT
FREFull
Hot7-9V OFF
D/FD/F
FREFull
Hot7-9V ON
DEFDEF
FREFull
Hot10 -
12VON
RHA654FF
.
.
.
.
TROUBLE DIAGNOSESAUTO
Self-diagnosis (Cont'd)
HA-4030

Operational Check
The purpose of the operational check is to con®rm that the system
is as it should be. The systems which will be checked are the
blower, mode (discharge air), intake air, temperature decrease,
temperature increase and A/C switch.
CONDITIONS:
+Engine running and at normal operating temperature.
PROCEDURE:
1. Check blower
1) Turn fan control dial to 1st speed. Blower should operate at low
speed.
2) Turn fan control dial to 2nd speed, and continue checking
blower speed until all speeds are checked.
3) Leave blower on MAX speed.
2. Check discharge air
1) Turn mode control dial to each position.
2) Con®rm that discharge air comes out according to the air dis-
tribution table at left.
Refer to ªDischarge Air Flowº, ªDESCRIPTIONº (HA-14) in Y61
SERVICE MANUAL, Publication No. SM7E-2Y61G1.
NOTE:
Con®rm that the compressor clutch is engaged (sound or
visual inspection) and intake door position is at FRESH when
the DEF position is selected.
Intake door position is checked in the next step.
RHA373I
RHA374I
RHA654FF
TROUBLE DIAGNOSESAUTO
HA-4032

DIAGNOSTIC PROCEDURE (TB48 ENGINE EXCEPT
FOR THE MIDDLE EAST)
SYMPTOM: Magnet clutch does not engage when A/C switch
and fan control dial are ON.
CHECK INTAKE SENSOR CIRCUIT.
Refer to self-diagnosis (HA-4027) and
intake sensor circuit (HA-132 in Y61 SER-
VICE MANUAL, publication No. SM7E-
2Y61G1.)
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connector.
Do approx. 12 volts exist between compres-
sor harness connector terminal No.j
1and
ground?
No
cYe s
Check magnet clutch coil.
NG
Replace magnet clutch.
Refer to HA-178 in Y61
SERVICE MANUAL (publi-
cation No. SM7E-2Y61G1).
Disconnect A/C relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C RELAY HARNESS CON-
NECTOR TERMINAL NO.j
3AND COM-
PRESSOR HARNESS CONNECTOR TER-
MINAL NO.j
1.
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 connector terminal Nos.j
1,
j5and ground?
Ye s
cNo
Check power supply circuit
and 10A or 20A (No.
)
located in the fuse block
(J/B).
Refer to EL section (ªWiring
Diagramº, ªPOWER SUP-
PLY ROUTINGº).
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-41 in Y61 SERVICE MANUAL,
publication No. SM1E-Y61EG1.
OK
cNG
Replace A/C relay.
jA(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA385I
SHA579F
SHA580FC
SHA581F
.
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-4040