2006 NISSAN PATROL head

MAIN 12 CAUSES OF OVERHEATING
Engine Step Inspection item Equipment Condition Reference page
OFF 1+Blocked radiator
+Blocked radiator grille
+Blocked bumper+Visual No blocking Ð
2+Coolant mixture+Coolant tester 50 - 50% coolant mixture See ``RECOMMENDED
FLUIDS AND LUBRI-
CANTS'' in MA section.
3+Coolant level+Visual Coolant up to MAX level
in reservoir tank and
radiator ®ller neckSee ``Changing Engine
Coolant'', ``ENGINE
MAINTENANCE'' in MA
section.
4+Radiator cap+Pressure tester 78 - 98 kPa
(0.78 - 0.98 bar, 0.8 - 1.0
kg/cm
2, 11 - 14 psi)See ``System Check''
``ENGINE COOLING
SYSTEM'' in LC section.
ON*
25+Coolant leaks+Visual No leaks See ``System Check''
``ENGINE COOLING
SYSTEM'' in LC section.
ON*
26+Thermostat+Touch the upper and
lower radiator hosesBoth hoses should be hot See ``Thermostat'' and
``Radiator'', ``ENGINE
COOLING SYSTEM'' in
LC section.
ON*
17+Cooling fan+CONSULT Operating See ``TROUBLE DIAG-
NOSIS FOR DTC 28'',
EC-113.
OFF 8+Combustion gas leak+Color checker chemical
tester 4 Gas analyzerNegative Ð
ON*
39+Coolant temperature
gauge+Visual Gauge less than 3/4
when drivingÐ
+Coolant over¯ow to res-
ervoir tank+Visual No over¯ow during driving
and idlingSee ``Changing Engine
Coolant'', ``ENGINE
MAINTENANCE'' in MA
section.
OFF*
410+Coolant return from res-
ervoir tank to radiator+Visual Should be initial level in
reservoir tankSee ``ENGINE MAINTE-
NANCE'' in MA section.
OFF 11+Cylinder head+Straight gauge feeler
gauge0.1mm (0.004 in) Maxi-
mum distortion (warping)See ``Inspection'', ``CYL-
INDER HEAD'' in EM
section.
12+Cylinder block and pis-
tons+Visual No scuffing on cylinder
walls or pistonSee ``Inspection'', ``CYL-
INDER BLOCK'' in EM
section.
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to ``OVERHEATING CAUSE ANALYSIS'' in LC section.
TROUBLE DIAGNOSIS FOR ``OVER HEAT'' (DTC 28)
Cooling Fan (Overheat) (Cont'd)
EC-120

ELECTRICAL SYSTEM
SECTION
EL
When you read wiring diagrams:
+Read GI section, ``HOW TO READ WIRING DIAGRAMS''.
When you perform trouble diagnoses, read GI section, ``HOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSES'' and ``HOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENT''.
+Check for any service bulletins before servicing the vehicle.
CONTENTS
PRECAUTIONS...............................................................1
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''...............1
HARNESS CONNECTOR................................................2
Description ...................................................................2
STANDARDIZED RELAY................................................3
Description ...................................................................3
POWER SUPPLY ROUTING...........................................5
Schematic ....................................................................5
Wiring Diagram Ð POWER Ð....................................6
Fuse ...........................................................................14
Fusible Link................................................................14
Circuit Breaker Inspection .........................................14
GROUND DISTRIBUTION/LHD MODELS....................15
Engine Room Harness ..............................................15
Main Harness.............................................................19
Body Harness ............................................................22
Body No. 2 Harness ..................................................23
Back Door and Rear Window Defogger Harness .....24
Room Lamp Harness.................................................25
GROUND DISTRIBUTION/RHD MODELS...................26
Engine Room Harness ..............................................26
Main Harness.............................................................30
Body Harness ............................................................33
Body No. 2 Harness ..................................................34
Back Door and Rear Window Defogger Harness .....35
Room Lamp Harness.................................................36
BATTERY.......................................................................37
How to Handle Battery ..............................................37
Battery Test and Charging Chart ...............................40
Service Data and Speci®cations (SDS).....................44
STARTING SYSTEM.....................................................45
Wiring Diagram Ð START Ð ....................................45Trouble Diagnoses.....................................................46
Construction ...............................................................47
Removal and Installation ...........................................47
Inspection...................................................................47
Assembly ...................................................................50
Service Data and Speci®cations (SDS).....................51
CHARGING SYSTEM....................................................52
Wiring Diagram Ð CHARGE Ð ................................52
Trouble Diagnoses.....................................................53
Construction ...............................................................54
Removal and Installation ...........................................54
Disassembly...............................................................54
Inspection...................................................................55
Assembly ...................................................................56
Service Data and Speci®cations (SDS).....................56
COMBINATION SWITCH...............................................57
Check .........................................................................57
Replacement ..............................................................58
STEERING SWITCH......................................................59
Check .........................................................................59
HEADLAMP Ð Conventional Type Ð........................61
Wiring Diagram Ð H/LAMP Ð ..................................61
Trouble Diagnoses.....................................................62
Bulb Replacement .....................................................63
Aiming Adjustment .....................................................63
HEADLAMP Ð Daytime Light System Ð..................65
System Description ....................................................65
Wiring Diagram Ð DTRL Ð ......................................67
Trouble Diagnoses.....................................................69
Bulb Replacement .....................................................69
Aiming Adjustment .....................................................69
HEADLAMP Ð Headlamp Aiming Control Ð............70
System Description ....................................................70
EL

Wiring Diagram Ð H/AIM Ð .....................................71
PARKING, LICENSE AND TAIL LAMPS......................73
Wiring Diagram Ð TAIL/L Ð/Type A .........................73
Wiring Diagram Ð TAIL/L Ð/Type B.........................75
STOP LAMP..................................................................77
Wiring Diagram Ð STOP/L Ð/Type A ......................77
BACK-UP LAMP............................................................78
Wiring Diagram Ð BACK/L Ð/LHD Models..............78
Wiring Diagram Ð BACK/L Ð/RHD Models .............79
REAR FOG LAMP.........................................................80
Wiring Diagram Ð R/FOG Ð ....................................80
TURN SIGNAL AND HAZARD WARNING LAMPS.....81
Wiring Diagram Ð TURN Ð/Type A .........................81
Wiring Diagram Ð TURN Ð/Type B .........................83
Trouble Diagnoses.....................................................85
Electrical Components Inspection .............................85
ILLUMINATION..............................................................86
Schematic ..................................................................86
Wiring Diagram Ð ILL Ð ..........................................87
INTERIOR ROOM LAMP Ð With Timer Ð.................93
System Description ....................................................93
Schematic ..................................................................94
Wiring Diagram Ð ROOM/L Ð/LHD Models ............95
Wiring Diagram Ð ROOM/L Ð/RHD Models............98
Trouble Diagnoses...................................................100
MAP AND VANITY MIRROR LAMPS.........................101
Wiring Diagram Ð INT/L Ð.....................................101
METER AND GAUGES...............................................102
System Description ..................................................102
Combination Meter ..................................................103
Wiring Diagram Ð METER Ð/LHD Models............104
Wiring Diagram Ð METER Ð/RHD Models ...........106
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode ........................108
Flexible Print Circuit (FPC) ......................................109
Trouble Diagnoses................................................... 110
Electrical Components Inspection ........................... 114
COMPASS AND THERMOMETER............................. 116
System Description .................................................. 116
Wiring Diagram Ð COMPAS Ð .............................. 117
Trouble Diagnoses................................................... 118
Calibration Procedure For Compass ....................... 119
WARNING LAMPS......................................................121
Schematic ................................................................121
Wiring Diagram Ð WARN Ð ..................................123
Electrical Components Inspection ...........................134
WARNING CHIME.......................................................135
System Description ..................................................135
Wiring Diagram Ð CHIME Ð/LHD Models.............136
Wiring Diagram Ð CHIME Ð/RHD Models ............137
Trouble Diagnoses...................................................138
Electrical Components Inspection ...........................140FRONT WIPER AND WASHER..................................141
System Description ..................................................141
Wiring Diagram Ð WIPER Ð/With Intermittent
Wiper........................................................................142
Removal and Installation .........................................143
Washer Nozzle Adjustment .....................................144
Washer Tube Layout ...............................................144
REAR WIPER AND WASHER....................................145
System Description ..................................................145
Wiring Diagram Ð WIP/R Ð/LHD Models ..............146
Wiring Diagram Ð WIP/R Ð/RHD Models .............148
Trouble Diagnoses...................................................150
Removal and Installation .........................................151
Washer Nozzle Adjustment .....................................151
Washer Tube Layout ...............................................152
Check Valve .............................................................152
HEADLAMP WIPER AND WASHER..........................153
Wiring Diagram Ð HLC Ð ......................................153
Electrical Components Inspection ...........................154
Removal and Installation .........................................154
Washer Tube Layout ...............................................154
Check Valve .............................................................154
HORN...........................................................................155
Wiring Diagram Ð HORN Ð...................................155
CIGARETTE LIGHTER................................................156
Wiring Diagram Ð CIGAR Ð ..................................156
CLOCK.........................................................................157
Wiring Diagram Ð CLOCK Ð .................................157
REAR WINDOW DEFOGGER.....................................158
System Description ..................................................158
Wiring Diagram Ð DEF Ð/LHD Models .................159
Wiring Diagram Ð DEF Ð/RHD Models ................161
Trouble Diagnoses...................................................163
Electrical Components Inspection ...........................164
Filament Check ........................................................164
Filament Repair .......................................................165
WIPER DEICER...........................................................166
System Description ..................................................166
Wiring Diagram Ð DEICER Ð................................167
AUDIO..........................................................................168
Wiring Diagram Ð AUDIO Ð/LHD Models .............168
Wiring Diagram Ð AUDIO Ð/RHD Models ............170
Trouble Diagnoses...................................................172
CATS (Code) System/RHD .....................................173
NATS Audio Link/LHD .............................................174
AUDIO Ð CD AUTO CHANGER Ð...........................176
Wiring Diagram Ð CD/CHG Ð/LHD Wagon ..........176
Wiring Diagram Ð CD/CHG Ð/LHD Hardtop .........177
Wiring Diagram Ð CD/CHG Ð/RHD Wagon ..........178
Wiring Diagram Ð CD/CHG Ð/RHD Hardtop ........179
Trouble Diagnoses...................................................180
AUDIO ANTENNA.......................................................181

BULB SPECIFICATIONS............................................314
Headlamp.................................................................314
Exterior Lamp ..........................................................314
Interior Lamp............................................................314
WIRING DIAGRAM CODES (CELL CODES) .............315
WIRING DIAGRAM REFERENCE CHART
ECCS, IGNITION SYSTEM ........................................................................\
................... EC SECTION
ANTI-LOCK BRAKE SYSTEM ........................................................................\
.............. BR SECTION
SRS ``AIR BAG'' ........................................................................\
.................................... RS SECT ION
HEATER AND AIR CONDITIONER ........................................................................\
...... HA SECTION
DIFFERENTIAL CARRIER ........................................................................\
.................... PD SECTION
REAR SUSPENSION ........................................................................\
............................. RA SECTION
FUEL SYSTEM ........................................................................\
....................................... FE SECT ION

Wiring Diagram Ð H/LAMP Ð
TEL403A
HEADLAMP Ð Conventional Type Ð
EL-61

Trouble Diagnoses
Symptom Possible cause Repair order
LH headlamps do not operate. 1. Bulb
2. Grounds
E25andE40
3. 15A fuse
4. Lighting switch1. Check bulb.
2. Check grounds
E25andE40.
3. Check 15A fuse (No.
51, located in fuse and fusible
link box). Verify battery positive voltage is present at
terminalj
8of lighting switch.
4. Check lighting switch.
RH headlamps do not operate. 1. Bulb
2. Grounds
E25andE40
3. 15A fuse
4. Lighting switch1. Check bulb.
2. Check grounds
E25andE40.
3. Check 15A fuse (No.
52, located in fuse and fusible
link box). Verify battery positive voltage is present at
terminalj
5of lighting switch.
4. Check lighting switch.
LH high beams do not operate, but
LH low beam operates.1. Bulbs
2. Open in LH high beams circuit
3. Lighting switch1. Check bulbs.
2. Check R/L wire between lighting switch and LH head-
lamps for an open circuit.
3. Check lighting switch.
LH low beam does not operate, but
LH high beam operates.1. Bulb
2. Open in LH low beam circuit
3. Lighting switch1. Check bulb.
2. Check R/G wire between lighting switch and LH head-
lamp for an open circuit.
3. Check lighting switch.
RH high beams do not operate, but
RH low beam operates.1. Bulbs
2. Open in RH high beams circuit
3. Lighting switch1. Check bulbs.
2. Check R/Y wire between lighting switch and RH head-
lamps for an open circuit.
3. Check lighting switch.
RH low beam does not operate, but
RH high beam operates.1. Bulb
2. Open in RH low beam circuit
3. Lighting switch1. Check bulb.
2. Check R/B wire between lighting switch and RH head-
lamp for an open circuit.
3. Check lighting switch.
High beam indicator does not work. 1. Bulb
2. Grounds
M30andM98
3. Open in high beam circuit1. Check bulb in combination meter.
2. Check grounds
M30andM98.
3. Check R/L wire between lighting switch and combina-
tion meter for an open circuit.
HEADLAMP Ð Conventional Type Ð
EL-62

Bulb Replacement
The headlamp is a semi-sealed beam type which uses a replace-
able halogen bulb. The bulb can be replaced from the engine com-
partment side without removing the headlamp body.
+Grasp only the plastic base when handling the bulb. Never
touch the glass envelope.
1. Disconnect the battery cable.
2. Turn the bulb retaining ring counterclockwise until it is free from
the headlamp re¯ector, and then remove it.
3. Disconnect the harness connector from the back side of the
bulb.
4. Remove the headlamp bulb carefully. Do not shake or rotate
the bulb when removing it.
5. Install in the reverse order of removal.
CAUTION:
Do not leave headlamp re¯ector without bulb for a long period
of time. Dust, moisture, smoke, etc. entering headlamp body
may affect the performance of the headlamp. Remove head-
lamp bulb from the headlamp re¯ector just before a replace-
ment bulb is installed.
Aiming Adjustment
When performing headlamp aiming adjustment, use an aiming
machine, aiming wall screen or headlamp tester. Aimers should be
in good repair, calibrated and operated in accordance with respec-
tive operation manuals.
If any aimer is not available, aiming adjustment can be done as
follows:
For details, refer to the regulations in your own country.
a. Keep all tires in¯ated to correct pressures.
b. Place vehicle and tester on one and same ¯at surface.
c. See that there is no-load in vehicle (coolant, engine oil
®lled up to correct level and full fuel tank) other than the
driver (or equivalent weight placed in driver's position).
CAUTION:
Be sure aiming switch is set to ``0'' when performing aiming
adjustment on vehicles equipped with headlamp aiming con-
trol.
SEL995K
SEL466V
HEADLAMP Ð Conventional Type Ð
EL-63

LOW BEAM
1. Turn headlamp low beam on.
2. Use adjusting screws to perform aiming adjustment.
+First tighten the adjusting screw all the way and then make
adjustment by loosening the screw.
+Adjust headlamps so that main axis of light is parallel to
center line of body and is aligned with point P shown in
illustration.
+Figure to the left shows headlamp aiming pattern for driv-
ing on right side of road; for driving on left side of road,
aiming pattern is reversed.
+Dotted lines in illustration show center of headlamp.
``H'': Horizontal center line of headlamps
``W
L'': Distance between each headlamp center
``L'': 5,000 mm (196.85 in)
``C'': 63 mm (2.48 in)
CEL735
SEL254I
HEADLAMP Ð Conventional Type Ð
Aiming Adjustment (Cont'd)
EL-64