engine control NISSAN PATROL 2004 Electronic Service Manual

AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of  3ÉC between temperature setting (Temperature control
dial position) and temperature felt by driver.
Operating procedures for this trimmer are as follows:
1. Set temperature at 25ÉC.
2. Set fan control dial to OFF.
3. Turn ignition switch ON.
4. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press intake switch for at least 5 seconds.
5. Turn temperature control dial as desired. Temperature will change at a rate of 1ÉC each time a dial is
turned.
Setting temperatureLED status of each switch
FRE REC A/C
þ3ÉC ON ON ON
þ2ÉC ON ON OFF
þ1ÉC ON OFF ON
0ÉC (Initial setting) OFF OFF OFF
1ÉC OFF OFF ON
2ÉC OFF ON OFF
3ÉC OFF ON ON
When battery cable is disconnected, trimmer operation is canceled. Temperature set becomes that of initial
condition, i.e. 0ÉC.
AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER
CAUTION:
This A/C system cannot perform the setup of the FOOT position.
LED of A/C switch illuminates. It means that it is ®xed to the initial setting.
AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION
When ignition switch is turned from OFF to ON, inlet port can be set to AUTO or manual.
Operating procedures for this trimmer are as follows:
1. Set fan control dial to 1st - 25th step.
2. Turn ignition switch ON.
3. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press intake switch for at least 5 seconds.
4. Press intake switch as desired.
LED status of intake switch Setting status
Setting changeover
method
FRE REC FRE REC
OFF ONAUTO control (Initial set-
ting)Manual REC status is
memorized.
(Initial setting)
Intake switch: ON ON OFFManual FRE status is
memorized.AUTO control
ON ONManual FRE status is
memorized.Manual REC status is
memorized.
OFF OFF AUTO control AUTO control
TROUBLE DIAGNOSESAUTO
Self-diagnosis (Cont'd)
HA-4031

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

DIAGNOSTIC PROCEDURE (MODELS WITH TB45
ENGINE)
SYMPTOM: Magnet clutch does not engage when A/C switch
and fan control dial are ON.
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-22 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.
RHA388I
RHA096GG
SHA580FA
SHA581F
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-4043

DIAGNOSTIC PROCEDURE (MODELS WITH TD
ENGINE)
SYMPTOM: Magnet clutch does not engage when A/C switch
and fan control dial are ON.
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connec-
tor.
Do approx. 12 volts exist between com-
pressor harness 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 cut relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C CUT RELAY HARNESS
CONNECTOR TERMINAL NO.j
3AND
COMPRESSOR HARNESS CONNECTOR
TERMINAL NO.j
1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK A/C CUT RELAY.
Refer to HA-4051.
OK
cNG
Replace A/C cut relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C RELAY HARNESS CON-
NECTOR TERMINAL NO.j
7AND A/C
CUT RELAY HARNESS CONNECTOR
TERMINAL NO.j
4.
Continuity should exist.
If OK, check harness for short.
OK
j
A
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness
or connector.
RHA392I
SHA579F
SHA580F
RHA393I
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-4046

DIAGNOSTIC PROCEDURE (MODELS WITH ZD
ENGINE)
SYMPTOM: Magnet clutch does not engage when A/C switch
and fan control dial are ON.
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
7AND 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,
j6and 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-119 in Y61 SERVICE
MANUAL, publication No. SM7E-2Y61G1.
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.
RHA399I
SHA579F
RHA653GA
RHA654G
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-4049

A
A/C operational check ................................HA-4032
A/C self-diagnoses (auto A/C)....................HA-4025
A/C, A - Wiring diagram .............................HA-4009
A/CCUT - Wiring diagram ..........................EC-4058
Air cleaner ®lter replacement .....................MA-4003
Air ¯ow meter - See Mass air ¯ow
sensor .....................................................EC-4047
Air mix. door motor.....................................HA-4036
Antenna .......................................................EL-4164
ASCD (automatic speed control
device) .....................................................EL-4233
ASCD - Wiring diagram ..............................EL-4234
A/T - Wiring diagram ...................................AT-4003
A/T trouble diagnoses .................................AT-4011
A/T Wiring diagram AT - NONDTC .............AT-4012
Audio ...........................................................EL-4136
AUDIO - Wiring diagram .............................EL-4137
Audio and A/C control removal and
installation - See Instrument panel .........BT-4006
Auto air conditioner - Wiring diagram ........HA-4009
Automatic speed control system - See
ASCD ......................................................EL-4233
AV and NAVI control unit ............................EL-4164
B
Back-up lamp ..............................................EL-4055
BACK/L - Wiring diagram............................EL-4055
Blower motor ..............................................HA-4038
Bumper, front ..............................................BT-4002
Bumper, rear ...............................................BT-4005
C
Camshaft ....................................................EM-4003
CHIME - Wiring diagram .............................EL-4113
Combination meter......................................EL-4095
Combination meter removal and instal-
lation - See Instrument panel..................BT-4006
Combination switch .....................................EL-4034
COMPAS - Wiring diagram .........................EL-4099
Console box - See Instrument panel ..........BT-4006
CONSULT-II general information.................GI-4002
Cruise control - See ASCD .........................EL-4233
Cylinder head .............................................EM-4016
D
Daytime light system...................................EL-4047
DEF - Wiring diagram .................................EL-4126
DEICER - Wiring diagram...........................EL-4125
Dimensions ..................................................GI-4008
D/LOCK - Wiring diagram ...........................EL-4245Dome light - See Interior lamp ...................EL-4088
DTRL - Wiring diagram ...............................EL-4047
E
ECM input/output signal .............................EC-4040
Electrical load signal circuit ...EC-4008, 4016, 4025
Electrical units location ...............................EL-4300
Engine control circuit
diagram .............................EC-4003, 4005, 4013,
4022, 4037, 4059
Exhaust system ..........................................FE-4008
Exterior ........................................................BT-4009
F
F/FOG - Wiring diagram .............................EL-4061
FICD - Wiring diagram ...............................EC-4036
Fog lamp, front............................................EL-4061
Fog lamp, rear ............................................EL-4064
Front bumper ..............................................BT-4002
Front fog lamp.............................................EL-4061
Front washer ...............................................EL-4117
Front wiper ..................................................EL-4117
Fuel gauge ..................................................EL-4095
Fuse ..............................................................Foldout
Fusible link....................................................Foldout
G
Gauges........................................................EL-4095
GLOW - Wiring diagram.............................EC-4033
GPS antenna ..............................................EL-4164
Ground distribution......................................EL-4016
H
Harness layout ..................................EL-4307, 4308
Headlamp ....................................................EL-4040
Headlamp washer .......................................EL-4122
Heat up switch............................................EC-4054
Heated seat.................................................EL-4231
HEATUP - Wiring diagram .........................EC-4054
Height (Dimensions) ....................................GI-4008
H/LAMP - Wiring diagram ...........................EL-4040
HLC - Wiring diagram .................................EL-4122
Hood............................................................BT-4002
Horn ............................................................EL-4124
HORN - Wiring diagram..............................EL-4124
HSEAT - Wiring diagram.............................EL-4231
I
ILL - Wiring diagram ...................................EL-4080
ALPHABETICAL INDEX
IDX-4002

Illumination ..................................................EL-4079
Instrument panel .........................................BT-4006
Intake door motor .......................................HA-4037
Interior lamp ................................................EL-4088
K
Keyless entry system - See Multi-re-
mote control system ................................EL-4264
L
Length (Dimensions) ...................................GI-4008
License lamp ...............................................EL-4049
Line pressure test (A/T) ..............................AT-4014
LOAD - Wiring diagram .........EC-4008, 4016, 4025
Location of electrical units ..........................EL-4300
M
MAFS - Wiring diagram..............................EC-4049
Magnet clutch .............................................HA-4039
Maintenance...............................................MA-4003
Maintenance (engine) ................................MA-4003
Major overhaul (Transfer) .................TF-4002, 4003
Mass air ¯ow sensor (MAFS).....................EC-4047
Meter ...........................................................EL-4095
METER - Wiring diagram............................EL-4097
MIRROR - Wiring diagram..........................EL-4227
Mode door motor ........................................HA-4035
Model variation ............................................GI-4005
MULTI - Wiring diagram ...................EL-4264, 4266
Multi-remote control system........................EL-4264
N
NATS (Nissan anti-theft system) ......EL-4293, 4295
NATS - Wiring diagram ..........EL-4293, 4295, 4297
NAVI - Wiring diagram ................................EL-4175
Navigation System ......................................EL-4162
P
P/ANT - Wiring diagram..............................EL-4159
Parking lamp ...............................................EL-4049
POWER - Wiring diagram...........................EL-4006
Power door lock ..........................................EL-4244
Power supply routing ..................................EL-4005
Power window .............................................EL-4238
Pressure test (A/T) ......................................AT-4014Q
Quick-glow system .....................................EC-4031
R
Radio - See Audio.......................................EL-4136
R/COOL - Wiring diagram (front auto
A/C).........................................................HA-4055
R/COOL - Wiring diagram (front
manual A/C) ............................................HA-4057
Rear bumper ...............................................BT-4005
Rear seat ....................................................BT-4012
Rear seat belt .............................................RS-4013
Rear window defogger ................................EL-4126
REMOTE - Wiring diagram .........................EL-4155
R/FOG - Wiring diagram .............................EL-4064
R/HEAT - Wiring diagram ...........................HA-4003
Road wheel size ..........................................GI-4009
Room lamp - See Interior lamp ..................EL-4088
ROOM/L - Wiring diagram ..........................EL-4089
S
Seat belt, rear.............................................RS-4013
Seat, rear ....................................................BT-4012
Seat, second (2nd) .....................................BT-4012
Second (2nd) seat ......................................BT-4012
Shift schedule..............................................AT-4014
SMJ (super multiple junction) .......................Foldout
Speedometer...............................................EL-4095
SRS - Wiring diagram ................................RS-4003
STAB - Wiring diagram ..............................RA-4002
Stabilizer release device ............................RA-4002
Stabilizer release device - Wiring
diagram ...................................................RA-4002
Stall test (A/T) .............................................AT-4014
S/TANK - Wiring diagram ...........................FE-4004
Steering switch............................................EL-4036
Stop lamp ....................................................EL-4059
STOP/L - Wiring diagram............................EL-4059
Sub fuel tank control system ......................FE-4002
Super lock ...................................................EL-4290
Supplemental restraint system - Wiring
diagram ...................................................RS-4003
T
Tachometer .................................................EL-4095
Tail lamp ......................................................EL-4049
TAIL/L - Wiring diagram ..............................EL-4049
TCM circuit diagram ..........................AT-4002, 4011
Telephone....................................................EL-4161
THEFT - Wiring diagram ..................EL-4279, 4284
Theft warning system..................................EL-4278
ALPHABETICAL INDEX
IDX-4003