Wir conditioner NISSAN PATROL 2004 Electronic Repair Manual

ENGINECONTROLSYSTEM
SECTION
EC
MODIFICATION NOTICE:
+Wiring diagrams have been modi®ed.
+ MAF sensor has been changed for ZD30DDTi engine models.
CONTENTS
TB45E
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM .....................................................................4003
Circuit Diagram ......................................................4003
TROUBLE DIAGNOSIS FOR NON-DETECTABLE
ITEMS ........................................................................\
.4004
Vehicle Speed Sensor (VSS) ................................4004
TB48DE M/T
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4005
Circuit Diagram ......................................................4005
VEHICLE SPEED SENSOR (VSS) ...........................4007
Wiring Diagram ......................................................4007
ELECTRICAL LOAD SIGNAL ...................................4008
Wiring Diagram ......................................................4008
Diagnostic Procedure ............................................4009
TB48DE A/T
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4013
Circuit Diagram ......................................................4013
SNOW MODE SWITCH .............................................4015
Wiring Diagram ......................................................4015
ELECTRICAL LOAD SIGNAL ...................................4016
Wiring Diagram ......................................................4016
Diagnostic Procedure ............................................4018
TB48DE A/T (WITH EURO-OBD)
TROUBLE DIAGNOSIS .............................................4022
Circuit Diagram ......................................................4022
SNOW MODE SWITCH .............................................4024
Wiring Diagram ......................................................4024
ELECTRICAL LOAD SIGNAL ...................................4025 Wiring Diagram ......................................................4025
Diagnostic Procedure ............................................4027
TD42
QUICK-GLOW SYSTEM ............................................4031
Circuit Diagram ......................................................4031
Wiring Diagram ......................................................4033
FAST IDLE CONTROL CIRCUIT ..............................4036
Wiring Diagram ......................................................4036
ZD30DDTi
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4037
Circuit Diagram ......................................................4037
TROUBLE DIAGNOSIS Ð GENERAL
DESCRIPTION ...........................................................4038
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................4038
ECM Terminals and Reference Value ...................4040
DTC 0102 MASS AIR FLOW SEN ............................4047
Component Description .........................................4047
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................4047
ECM Terminals and Reference Value ...................4047
On Board Diagnosis Logic.....................................4047
DTC Con®rmation Procedure ................................4048
Wiring Diagram ......................................................4049
Diagnostic Procedure ............................................4050
DTC 0104 VEHICLE SPEED SEN ............................4053
Wiring Diagram ......................................................4053
HEAT UP SWITCH ....................................................4054
Wiring Diagram ......................................................4054
Diagnostic Procedure ............................................4055
AIR CONDITIONER CONTROL ................................4058
Wiring Diagram ......................................................4058
EC-4001

TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and Pulse
Signal)
11 BR/YExhaust gas control
valve control solenoid
valveEngine is running.
Engine speed is below 1,200 rpm
Engine coolant temperature is below 87ÉC
(189ÉF)
Stop the vehicle
Heat up switch is ªONºApproximately 0.1V
Engine is running.
Except the above conditionBATTERY VOLTAGE
(11 - 14V)
14 L Cooling fan relayEngine is running.
Cooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
Engine is running.
Cooling fan is operatingApproximately 0.1V
15 Y/L Air conditioner relayEngine is running.
Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating)Approximately 0.1V
16 L/W Glow lampIgnition switch ªONº
Glow lamp is ªONºApproximately 1V
Ignition switch ªONº
Glow lamp is ªOFFºBATTERY VOLTAGE
(11 - 14V)
17 G/Y Stop lamp switchIgnition switch ªONº
Brake pedal fully releasedApproximately 0V
Ignition switch ªONº
Brake pedal depressedBATTERY VOLTAGE
(11 - 14V)
18 GMalfunction indicator
lampIgnition switch ªONº
Approximately 1V
Engine is running.
Idle speedBATTERY VOLTAGE
(11 - 14V)
19 LG/REngine coolant tempera-
ture sensorEngine is running.
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
20 R/W Start signalIgnition switch ªONº
Approximately 0V
Ignition switch ªSTARTº
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-4041

TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and Pulse
Signal)
21 LG/B Air conditioner switchEngine is running.
Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating)Approximately 0.1V
22 P/BPark/Neutral position
switchIgnition switch ªONº
Gear position is ªNeutralº (M/T models)
Gear position is ªPº or ªNº (A/T models)Approximately 0V
Ignition switch ªONº
Except the above gear positionBATTERY VOLTAGE
(11 - 14V)
23 WAccelerator position sen-
sorIgnition switch ªONº
Accelerator pedal fully released0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressedApproximately 4.5V
24 PU/W A/T signal No. 1Engine is running.
Warm-up condition
Idle speedVoltage goes high up once in
a few seconds
SEF448Z
26 L/OR Vehicle speed sensorEngine is running.
Lift up the vehicle
In 1st gear position
Vehicle speed is 10 km/h (6 MPH)0 - Approximately 4.8V
SEF257Z
Engine is running.
Lift up the vehicle
In 2nd gear position
Vehicle speed is 30 km/h (19 MPH)Approximately 2.2V
SEF258Z
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-4042

Component Description
The mass air ¯ow (MAF) sensor is placed in the stream of intake
air. It measures the intake air ¯ow rate by measuring a part of the
entire intake air ¯ow. The mass air ¯ow sensor controls the tem-
perature of the hot wire to a certain amount. The heat generated
by the hot wire is reduced as the intake air ¯ows around it. The
more air, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air ¯ow increases. The
ECM detects the air ¯ow by means of this current change.
CONSULT-II Reference Value in Data Monitor
Mode
Speci®cation data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
MAS AIR/FL SE+Ignition switch: ON (Engine stopped) Approx. 0.4V
+Engine: After warming up
+Air conditioner switch: ªOFFº
+Shift lever: Neutral position
+No-loadIdle 1.5 - 1.9V
Engine is revving from idle to about
4,000 rpm1.5 - 1.9 to Approx. 4.0V (Check for liner
voltage rise in response to engine being
increased to about 4,000 rpm.)
ECM Terminals and Reference Value
Speci®cation data are reference values, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
35 R Mass air ¯ow sensorIgnition switch ªONº
Approximately 0.4V
Engine is running.
Warm-up condition
Idle speed1.5 - 1.9V
Engine is running.
Warm-up condition
Engine is revving from idle to about 4,000 rpm1.5 - 1.9 to Approximately
4.0V (Check for liner volt-
age rise in response to
engine being increased to
about 4,000 rpm.)
50 B Sensor groundEngine is running.
Warm-up condition
Idle speedApproximately 0V
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
+An excessively high or low voltage from the sensor is sent to
ECM.+Harness or connectors
(The sensor circuit is open or shorted.)
+Mass air ¯ow sensor
PBIB1604E
DTC 0102 MASS AIR FLOW SENZD30DDTi
EC-4047

Wiring Diagram
TEC530M
AIR CONDITIONER CONTROLZD30DDTi
EC-4058

Wiring Diagram Codes (Cell Codes)
Use the chart below to ®nd out what each wiring diagram code
stands for.
Refer to the wiring diagram code in the alphabetical index to ®nd
the location (Page number) of each wiring diagram.
Code Section Wiring Diagram Name
A/C, A HA Auto Air Conditioner
A/C, M HA Manual Air Conditioner
A/CCUT EC Air Conditioner Control
A/T AT A/T
ASCD EL Automatic Speed Control Device
AUDIO EL Audio
BACK/L EL Back-up Lamp
CD/CHG EL CD Auto Changer
CHIME EL Warning Chime
COMPAS EL Compass and Thermometer
COOL/B HA Cool Box
D/LOCK EL Power Door Lock
DEF EL Rear Window Defogger
DEICER EL Wiper Deicer
DTRL EL Headlamp Ð Daytime Light System
F/FOG EL Front Fog Lamp
FICD EC IACV-FICD Solenoid Valve
GLOW EC Quick Glow System
H/AIM EL Headlamp Aiming Control System
H/LAMP EL Headlamp
HEATUP EC Heat Up Switch
HLC EL Headlamp Washer
HORN EL Horn
HSEAT EL Heated Seat
ILL EL Illumination
LOAD EC Electrical Load Signal
MAFS EC Mass Air Flow Sensor
METER EL Meter and Gauges
MIRROR EL Door Mirror
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-Theft System
NAVI EL Navigation System
NONDTC AT Non-detective Items
P/ANT EL Power Antenna
PHONE EL Telephone
POWER EL Power Supply Routing
R/COOL HA Rear Cooler System
R/FOG EL Rear Fog LampCode Section Wiring Diagram Name
R/HEAT HA Rear Heater System
REMOTE EL Audio (Remote Control Switch)
ROOM/L EL Interior Room Lamp
S/LOCK EL Power Door Lock Ð Super Lock
S/TANK FE Sub Fuel Tank Control System
SRS RS Supplemental Restraint System
STAB RA Stabilizer Release Device
STOP/L EL Stop Lamp
TAIL/L EL Parking, License and Tail Lamps
THEFT EL Theft Warning System
TRQ/SG EC Engine Torque Control Signal
TURN EL Turn Signal and Hazard Warning
Lamps
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WINDOW EL Power Window
WIP/R EL Rear Wiper and Washer
WIPER EL Front Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
EL-4347

\
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

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