2004 NISSAN PATROL engine control

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

3 CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
SEF227Z
3. Disconnect ECM harness connector.
4. Disconnect TCM harness connector.
5. Check harness continuity between mass air ¯ow sensor terminal 3 and ECM terminal 50, TCM terminal 42. Refer to Wiring Dia-
gram.
Continuity should exist.
6. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 5.
NGcGO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E230, F12
+Harness connectors M51, F6
+Harness connectors E106, M88
+Harness for open or short between mass air ¯ow sensor and ECM
+Harness for open or short between mass air ¯ow sensor and TCM (Transmission control module)
cRepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between mass air ¯ow sensor terminal 4 and ECM terminal 35. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 7.
NGcGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E230, F12
+Harness for open or short between mass air ¯ow sensor and ECM
cRepair open circuit or short to ground or short to power in harness or connectors.
DTC 0102 MASS AIR FLOW SENZD30DDTi
Diagnostic Procedure (Cont'd)
EC-4051

Circuit Diagram
TEC539M
ENGINE AND EMISSION CONTROL OVERALL SYSTEMTD42Ti
EC-4059

ELECTRICALSYSTEM
SECTION
EL
When you read wiring diagrams:
+ Read GI section, ªHOW TO READ WIRING DIAGRAMSº.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENTº.
+ Check for any service bulletins before servicing the vehicle.
MODIFICATION NOTICE:
+ Wiring Diagrams have been changed.
CONTENTS
POWER SUPPLY ROUTING/WAGON AND
HARDTOP MODELS .................................................4005
Schematic ..............................................................4005
Wiring Diagram Ð POWER Ð..............................4006
GROUND DISTRIBUTION/WAGON AND
HARDTOP MODELS .................................................4016
Main Harness/LHD Models....................................4016
Main Harness/RHD Models ...................................4019
Engine Room Harness/LHD Models .....................4022
Engine Room Harness/RHD Models .....................4024
Body Harness/LHD Models ...................................4026
Body Harness/RHD Models...................................4028
Body No. 2 Harness/LHD Models .........................4030
Body No. 2 Harness/RHD Models.........................4031
Back Door and Rear Window Defogger Harness/
LHD Models ...........................................................4032
Back Door and Rear Window Defogger Harness/
RHD Models ..........................................................4033
COMBINATION SWITCH ...........................................4034
Check .....................................................................4034
STEERING SWITCH ..................................................4036
Check/RHD Models for Europe and LHD Models.4036
Check/RHD Models Except for Europe .................4038
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Conventional Type Ð ..........................................4040
Wiring Diagram Ð H/LAMP Ð ..............................4040
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Xenon Type Ð ......................................................4041
Bulb Replacement .................................................4041
Wiring Diagram Ð H/LAMP Ð ..............................4042 HEADLAMP/WAGON AND HARDTOP MODELS
Ð Headlamp Aiming Control Ð
.............................4044
Wiring Diagram Ð H/AIM Ð/Except for the
Middle East ............................................................4044
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Daytime Light System Ð ....................................4047
Wiring Diagram Ð DTRL Ð ..................................4047
PARKING, LICENSE AND TAIL LAMPS/WAGON
AND HARDTOP MODELS ........................................4049
Wiring Diagram Ð TAIL/L Ð/Type A .....................4049
Wiring Diagram Ð TAIL/L Ð/Type B.....................4051
Wiring Diagram Ð TAIL/L Ð/Type C ....................4053
BACK-UP LAMP/WAGON AND HARDTOP
MODELS ....................................................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models
Except TB48 Engine with A/T................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models for
TB48 Engine with A/T ............................................4056
Wiring Diagram Ð BACK/L Ð/RHD Models
Except TB48 Engine with A/T................................4057
Wiring Diagram Ð BACK/L Ð/RHD Models
for TB48 Engine with A/T ......................................4058
STOP LAMP/WAGON AND HARDTOP MODELS ...4059
Wiring Diagram Ð STOP/L Ð/Type A ..................4059
Wiring Diagram Ð STOP/L Ð/Type B ..................4060
FRONT FOG LAMP/WAGON AND HARDTOP
MODELS ....................................................................4061
Wiring Diagram Ð F/FOG Ð/Except for Europe
and China ..............................................................4061
EL-4001

Terminals and Reference Value for NAVI Control
Unit........................................................................\
.4183
Terminals and Reference Value for Display ..........4185
Terminals and Reference Value for NAVI Switch ..4186
Terminals and Reference Value for Transfer Unit .4187
Terminals and Reference Value for Voice
Change Relay ........................................................4188
Self-Diagnosis Function .........................................4189
Self-Diagnosis Mode..............................................4189
Con®rmation/Adjustment Mode .............................4192
Trouble Diagnoses.................................................4198
Example of Symptoms Judged Not Malfunction ...4218
Program Loading ...................................................4226
DOOR MIRROR/WAGON AND HARDTOP
MODELS ....................................................................4227
Wiring Diagram Ð MIRROR Ð/LHD Models........4227
Wiring Diagram Ð MIRROR Ð/RHD Models .......4229
HEATED SEAT/WAGON AND HARDTOP
MODELS ....................................................................4231
Wiring Diagram Ð HSEAT Ð................................4231
AUTOMATIC SPEED CONTROL DEVICE (ASCD)/
WAGON AND HARDTOP MODELS .........................4233
Schematic/TB48 and TD42Ti Engine Models .......4233
Wiring Diagram Ð ASCD Ð/TB48 and TD42Ti
Engine Models .......................................................4234
POWER WINDOW/WAGON AND HARDTOP
MODELS ....................................................................4238
Schematic ..............................................................4238
Wiring Diagram Ð WINDOW Ð ...........................4239
POWER DOOR LOCK/WAGON AND HARDTOP
MODELS ....................................................................4244
Schematic/Without Theft Warning System
Models ...................................................................4244
Wiring Diagram Ð D/LOCK Ð/Without Theft
Warning System Models ........................................4245
Schematic/With Theft Warning System Models ....4249
Wiring Diagram Ð D/LOCK Ð/LHD Models With
Theft Warning System ...........................................4250
Wiring Diagram Ð D/LOCK Ð/RHD Models With
Theft Warning System ...........................................4254
POWER DOOR LOCK/WAGON AND HARDTOP
MODELS ....................................................................4258
Schematic Ð Super Lock Ð .................................4258
Wiring Diagram Ð S/LOCK Ð ..............................4259
MULTI-REMOTE CONTROL SYSTEM/WAGON
AND HARDTOP MODELS ........................................4264
Wiring Diagram Ð MULTI Ð/LHD Models Except
for Europe, The Middle East and With Theft
Warning System ....................................................4264
Wiring Diagram Ð MULTI Ð/RHD Models
Except for Europe, South Africa and With Theft
Warning System ....................................................4266 Schematic/With Theft Warning System Models ....4268
Wiring Diagram Ð MULTI Ð/LHD Models with
Theft Warning System ...........................................4269
Wiring Diagram Ð MULTI Ð/RHD Models with
Theft Warning System ...........................................4273
Wiring Diagram Ð MULTI Ð/LHD Models for
Europe and The Middle East.................................4276
THEFT WARNING SYSTEM/WAGON AND
HARDTOP MODELS .................................................4278
Schematic ..............................................................4278
Wiring Diagram Ð THEFT Ð/LHD Models ...........4279
Wiring Diagram Ð THEFT Ð/RHD Models ..........4284
SUPER LOCK CONTROL UNIT/WAGON AND
HARDTOP MODELS .................................................4290
Schematic/RHD Models for Europe ......................4290
UNIFIED METER CONTROL UNIT (TIME
CONTROL SYSTEM)/WAGON AND HARDTOP
MODELS ....................................................................4292
Schematic/Except RHD Models for Europe and
With Theft Warning System Models ......................4292
NATS (Nissan Anti-Theft System)/TB48DE
ENGINE MODELS FOR EUROPE ............................4293
Wiring Diagram Ð NATS Ð ..................................4293
NATS (Nissan Anti-Theft System)/ZD ENGINE
MODELS ....................................................................4295
Wiring Diagram Ð NATS Ð/LHD Models for
Europe ...................................................................4295
Wiring Diagram Ð NATS Ð/RHD Models for
Europe ...................................................................4297
LOCATION OF ELECTRICAL UNITS/WAGON
AND HARDTOP MODELS ........................................4300
Engine Compartment .............................................4300
Passenger Compartment Ð LHD Models .............4302
Passenger Compartment Ð RHD Models ............4304
HARNESS LAYOUT ..................................................4307
How to Read Harness Layout ...............................4307
HARNESS LAYOUT/WAGON AND HARDTOP
MODELS ....................................................................4308
Main Harness/LHD Models....................................4308
Main Harness/RHD Models ...................................4312
Engine Room Harness/LHD Models .....................4316
Engine Room Harness/RHD Models .....................4322
Engine Harness .....................................................4328
Body Harness/LHD Models ...................................4330
Body Harness/RHD Models...................................4334
Body No. 2 Harness/LHD Models .........................4338
Body No. 2 Harness/RHD Models.........................4340
Chassis Harness....................................................4342
Front Door Harness (Driver side) ..........................4343
Front Door Harness (Passenger side) ..................4344
Rear Door Harness................................................4345
CONTENTS(Cont'd)
EL-4003

Terminals and Reference Value for NAVI
Control Unit
+Measure using circuit tester and oscilloscope.
+ Measure with connector connected unless otherwise speci®ed.
CAUTION:
Con®rm voltage between negative terminal on each unit and ground is approximately 0V.
+ If ignition switch ON is required in measurement condition, measure with engine running to prevent bat-
tery discharge.
Terminal No.
(wire color) ItemSignal
input/
output Condition
Reference value Example of symptom
(+) (þ) Ignition
switch Operation
1 (B) Ground Ground Ð ON Ð Approx. 0V Ð
2 (R/G) Ground Battery Input Ð Ð Battery voltage System does not work
properly.
3 (R/G)
4 (B) Ground Ground Ð ON Ð Approx. 0V Ð
6 (L/OR) Ground ACC power Input ACC Ð Battery voltage System does not work
properly.
7 (Y) 8 (BR) Voice guide
signalOutput ON Push the ªVOICEº
switch
SKIA0171J
Only route guide and
operation guide are not
heard.
9 Ð Shield Ð Ð Ð Ð Ð
12 (R) 17 RGB area
signaloutput ON Push the ªD/Nº
switch.
SKIA0162E
RGB screen is not
shown.
15 (B) 17 RGB signal
(B: blue)Output ON Select ªColor barº of
CONFIRMATION/
ADJUSTMENT func-
tion.
SKIA0167E
RGB screen looks yel-
lowish.
16 (W) 17 RGB syn-
chronizing
signalOutput ON
Push the ªMAPº
switch.
SKIA0164E
RGB screen is rolling.
17 Ground RGB shield Ð ON Ð Approx. 0V Ð
18 (R) 17 RGB signal
(R: red)Output ON Select ªColor barº of
CONFIRMATION/
ADJUSTMENT func-
tion.
SKIA0165E
RGB screen looks blu-
ish.
NAVIGATION SYSTEM
EL-4183

Self-Diagnosis Function
DESCRIPTION
+Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/
ADJUSTMENT mode operated manually.
+ Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.
+ CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and
judgment by an operator (malfunction that cannot be automatically judged by the system), to check/change
the set value, and to display the History of Errors of the navigation system.
DIAGNOSIS ITEM
Mode Description
Self-diagnosis +
NAVI Control unit diagnosis (DVD-ROM drive will not be diagnosed when no
map DVD-ROM is in it.).
+ Performs diagnosis of each unit and connections between control unit and
GPS antenna, as well as between control unit and each unit.
Con®rmation/
Adjustment Display
Color tone and shading of the screen can be checked by the display of a color
bar and a gray scale.
Vehicle signals Analyzes the following vehicle signals: Vehicle speed signal, light signal, ignition
switch signal, and reverse signal.
Navigation Display Longi-
tude & Lati-
tude
Display the map. Use the joystick to adjust position. Longitude and latitude will be
displayed.
Speed Calibra-
tion Under ordinary conditions, the navigation system distance measuring function will
automatically compensate for minute decreases in wheel and tire diameter
caused by tire wear or low-pressure. Speed calibration immediately restores sys-
tem accuracy in cases such as when distance calibration is needed because of
the use of tire chains in inclement weather.
Angle Adjust-
ment Corrects difference between actual turning angle of a vehicle and turning angle of
the car mark on the display.
Initialize Loca-
tion This mode is for initializing the current location. Use when the vehicle is trans-
ported a long distance on a trailer, etc.
History of Errors Diagnosis results previously stored in the memory (before turning ignition switch
ON) are displayed in this mode. Time and location when/where the errors
occurred are also displayed.
Self-Diagnosis Mode
OPERATION PROCEDURE
1. Start the engine.
2. Push and hold ªMAPº and ªDAY/NIGHTº switches simulta-
neously for 5 seconds or more.
+ Push the ªBACKº switch and the initial system screen will
be shown.
PKIB1537E
NAVIGATION SYSTEM
EL-4189

Self-diagnosis codes
Diagnosis No. Possible causeReference
page
1 NAVI control unit malfunction Ð
2 NAVI control unit judged no map DVD-ROM is inserted. Ð
3 When ªDVD-ROM is not recognized. Please check the disc.º is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warps.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-
diagnosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is
normal, the map DVD-ROM is malfunctioning. Ð
4 If ªError found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in
accordance with service manualº is shown, performed same inspection as diagnosis No. 3. Ð
5 GPS antenna system
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect the GPS antenna connector and make sure that approximately 5V is supplied
from NAVI control unit. If not, the NAVI control unit is inoperative. If the voltage is supplied,
replace the GPS antenna and perform self-diagnosis again. If the same result is shown, the
NAVI control unit is inoperative. Ð
6 Display power supply and ground circuit.
Communication line between display and NAVI switch. EL-4203
7 NAVI switch power supply and ground circuit.
Communication line between NAVI switch and transfer unit. EL-4204
8 NAVI control unit power supply and ground circuit.
Communication line between NAVI control unit and transfer unit. EL-4204
9 Transfer unit power supply and ground circuit.
Communication line between transfer unit and display. EL-4205
Con®rmation/Adjustment Mode
OPERATION PROCEDURE
1. Start the engine.
2. Push and hold ªMAPº and ªDAY/NIGHTº switches simulta-
neously for 5 seconds or more.
+ Push the ªBACKº switch and the initial system screen will
be shown.
3. The initial trouble diagnosis screen will be shown, and items ªSelf-Diagnosisº and ªCon®rmation/Adjustmentº will become
selective.
PKIB1537E
SKIA0381E
NAVIGATION SYSTEM
Self-Diagnosis Mode (Cont'd)
EL-4192