antenna INFINITI QX4 2001 Factory Service Manual

Electrical Components Inspection ...........................108
COMPASS AND THERMOMETER............................. 110
System Description .................................................. 110
Wiring Diagram - COMPAS -................................... 111
Trouble Diagnoses................................................... 112
Calibration Procedure for Compass ........................ 113
WARNING LAMPS...................................................... 114
Schematic ................................................................ 114
Wiring Diagram - WARN - ....................................... 115
Fuel Warning Lamp Sensor Check .........................122
Electrical Components Inspection ...........................122
A/T INDICATOR...........................................................123
Wiring Diagram - AT/IND -.......................................123
WARNING CHIME.......................................................125
Component Parts and Harness Connector
Location ...................................................................125
System Description ..................................................125
Wiring Diagram - CHIME - ......................................127
Trouble Diagnoses...................................................129
FRONT WIPER AND WASHER..................................136
System Description ..................................................136
Wiring Diagram - WIPER - ......................................138
Removal and Installation .........................................139
Washer Nozzle Adjustment .....................................140
Washer Tube Layout ...............................................140
REAR WIPER AND WASHER....................................141
System Description ..................................................141
Wiring Diagram - WIP/R -........................................143
Trouble Diagnoses...................................................145
Removal and Installation .........................................145
Washer Nozzle Adjustment .....................................146
Washer Tube Layout ...............................................146
Check Valve .............................................................146
HORN...........................................................................147
Wiring Diagram - HORN - .......................................147
CIGARETTE LIGHTER................................................148
Wiring Diagram - CIGAR -.......................................148
CLOCK.........................................................................150
Wiring Diagram - CLOCK -......................................150
REAR WINDOW DEFOGGER.....................................151
Component Parts and Harness Connector
Location ...................................................................151
System Description ..................................................151
Wiring Diagram - DEF - ...........................................153
Trouble Diagnoses...................................................155
Electrical Components Inspection ...........................157
Filament Check ........................................................157
Filament Repair .......................................................158
AUDIO..........................................................................160
System Description ..................................................160
Schematic ................................................................161
Wiring Diagram - AUDIO - .......................................162Trouble Diagnoses...................................................166
Inspection.................................................................167
Wiring Diagram - REMOTE -...................................168
AUDIO ANTENNA.......................................................169
System Description ..................................................169
Wiring Diagram - P/ANT - .......................................170
Trouble Diagnoses...................................................171
Location of Antenna .................................................171
Antenna Rod Replacement .....................................171
POWER SUNROOF.....................................................173
System Description ..................................................173
Wiring Diagram - SROOF - .....................................174
Trouble Diagnoses...................................................176
DOOR MIRROR...........................................................177
Wiring Diagram - MIRROR - ...................................177
GLASS HATCH OPENER...........................................178
System Description ..................................................178
Wiring Diagram - TLID - ..........................................179
FUEL FILLER LID OPENER.......................................180
Wiring Diagram - F/LID - .........................................180
POWER SEAT.............................................................181
Wiring Diagram - SEAT - .........................................181
HEATED SEAT............................................................183
Wiring Diagram - HSEAT - ......................................183
Seatback Heating Unit .............................................185
AUTOMATIC DRIVE POSITIONER............................186
Component Parts and Harness Connector
Location ...................................................................186
System Description ..................................................187
Schematic ................................................................190
Wiring Diagram - AUT/DP - .....................................191
On Board Diagnosis ................................................196
Trouble Diagnoses...................................................198
AUTOMATIC SPEED CONTROL DEVICE (ASCD)...221
Component Parts and Harness Connector
Location ...................................................................221
System Description ..................................................222
Schematic ................................................................224
Wiring Diagram - ASCD - ........................................225
Fail-safe System ......................................................229
Trouble Diagnoses...................................................230
Electrical Component Inspection .............................239
ASCD Wire Adjustment ...........................................240
POWER WINDOW.......................................................241
System Description ..................................................241
Schematic ................................................................244
Wiring Diagram - WINDOW - ..................................245
Trouble Diagnoses...................................................250
POWER DOOR LOCK.................................................254
Component Parts and Harness Connector
Location ...................................................................254
System Description ..................................................254
CONTENTS(Cont'd)
EL-2

Trouble DiagnosesNBEL0082AUDIO UNITNBEL0082S01
Symptom Possible causes Repair order
Audio unit inoperative (no
digital display and no
sound from speakers).1. 10A fuse
2. Poor audio unit case ground
3. Audio unit1. Check 10A fuse [No. 10, located in fuse block (J/B)].
Turn ignition switch ON and verify that battery posi-
tive voltage is present at terminal 10 of audio unit.
2. Check audio unit case ground.
3. Remove audio unit for repair.
Audio unit presets are lost
when ignition switch is
turned OFF.1. 15A fuse
2. Audio unit1. Check 15A fuse [No. 4, located in fuse block (J/B)]
and verify that battery positive voltage is present at
terminal 6 of audio unit.
2. Remove audio unit for repair.
AM stations are weak or
noisy (FM stations OK).1. Antenna
2. Poor audio unit ground
3. Audio unit1. Check antenna.
2. Check audio unit ground.
3. Remove audio unit for repair.
FM stations are weak or
noisy (AM stations OK).1. Window antenna
2. Audio unit1. Check window antenna.
2. Remove audio unit for repair.
Audio unit generates noise
in AM and FM modes with
engine running.1. Poor audio unit ground
2. Loose or missing ground bonding
straps
3. Ignition condenser or rear window
defogger noise suppressor condenser
4. Alternator
5. Ignition coil or secondary wiring
6. Audio unit1. Check audio unit ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger
noise suppressor condenser.
4. Check alternator.
5. Check ignition coil and secondary wiring.
6. Remove audio unit for repair.
Audio unit generates noise
in AM and FM modes with
accessories on (switch
pops and motor noise).1. Poor audio unit ground
2. Antenna
3. Accessory ground
4. Faulty accessory1. Check audio unit ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
Audio unit controls are
operational, but no sound
is heard from any speaker.1. 15A fuse
2. Audio unit output
3. Audio unit1. Check 15A fuse [No. 4, located in fuse block (J/B)].
Verify battery positive voltage is present at terminal 3
of audio amp. relay.
2. Check audio unit output voltage (Terminal 12).
3. Remove audio unit for repair.
All front speakers are inop-
erative.1. Audio amp. relay
2. Audio amp. relay ground
3. Amp. ON signal1. Check audio amp. relay.
2. Check audio amp. relay ground (Terminal 2).
3. Turn ignition switch ACC and audio unit ON. Verify
battery positive voltage is present at terminal 1 of
audio amp. relay.
Individual front speaker is
noisy or inoperative.1. Speaker ground
2. Power supply
3. Audio unit output
4. Speaker1. Check speaker ground (Terminal 5).
2. Check power supply for speaker (Terminal 4).
3. Check audio unit output voltage for speaker.
4. Replace speaker.
Both rear speakers are
inoperative.1. Poor rear speaker amp. ground
2. Power supply
3. Amp. ON signal
4. Rear speaker amp.1. Check rear speaker amp. ground circuit.
2. Check power supply for rear speaker amp. (Terminal
11).
3. Turn ignition switch ACC and audio unit ON. Verify
battery positive voltage is present at terminal 9 of
rear speaker amp.
4. Remove rear speaker amp. for repair.
Individual rear speaker is
noisy or inoperative.1. Speaker
2. Audio unit/amp. output
3. Speaker circuit
4. Audio unit1. Check speaker.
2. Check audio unit/amp. output.
3. Check wires for open or short between audio unit/
amp. and speakers.
4. Remove audio unit for repair.
AUDIO
Trouble Diagnoses
EL-166

InspectionNBEL0083AUDIO UNIT AND AMP.NBEL0083S01All voltage inspections are made with:
IIgnition switch ON or ACC
IAudio unit ON
IAudio unit and amps. connected (If audio unit or amp. is removed for inspection, supply a ground to the
case using a jumper wire.)
ANTENNANBEL0083S021. Using a jumper wire, clip an auxiliary ground between antenna and body.
IIf reception improves, check antenna ground (at body surface).
IIf reception does not improve, check main feeder cable for short circuit or open circuit.
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AUDIO
Inspection
EL-167

System DescriptionNBEL0084Power is supplied at all times
Ithrough 7.5A fuse [No. 24, located in the fuse block (J/B)]
Ito power antenna terminal 6.
Ground is supplied to the power antenna terminal 2 through body grounds M4, M66 and M147.
When the audio unit is turned to the ON position, battery positive voltage is supplied
Ithrough audio unit terminal 5
Ito power antenna terminal 4.
The antenna raises and is held in the extended position.
When the audio unit is turned to the OFF position, battery positive voltage is interrupted
Ifrom audio unit terminal 5
Ito power antenna terminal 4.
The antenna retracts.GI
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AUDIO ANTENNA
System Description
EL-169

Wiring Diagram Ð P/ANT ÐNBEL0085
MEL824L
AUDIO ANTENNA
Wiring Diagram Ð P/ANT Ð
EL-170

Trouble DiagnosesNBEL0086POWER ANTENNANBEL0086S01
Symptom Possible causes Repair order
Power antenna does not
operate.1. 7.5A fuse
2. Audio unit signal
3. Grounds M4, M66 and M1471. Check 7.5A fuse [No. 24, located in fuse block (J/B)].
Verify that battery positive voltage is present at termi-
nal 6 of power antenna.
2. Turn ignition switch and audio unit ON. Verify that
battery positive voltage is present at terminal 4 of
power antenna.
3. Check grounds M4, M66 and M147.
Location of AntennaNBEL0087
YEL067K
MEL036G
Antenna Rod ReplacementNBEL0088REMOVALNBEL0088S011. Remove antenna nut and antenna base.
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AUDIO ANTENNA
Trouble Diagnoses
EL-171

MEL037G
2. Withdraw antenna rod while raising it by operating antenna
motor.
MEL038G
INSTALLATIONNBEL0088S021. Lower antenna rod by operating antenna motor.
2. Insert gear section of antenna rope into place with it facing
toward antenna motor.
3. As soon as antenna rope is wound on antenna motor, stop
antenna motor. Insert antenna rod lower end into antenna
motor pipe.
4. Retract antenna rod completely by operating antenna motor.
5. Install antenna nut and base.
AUDIO ANTENNA
Antenna Rod Replacement (Cont'd)
EL-172

When the front door switch LH is OPEN, ground is supplied
Ito smart entrance control unit terminal 29
Ithrough front door switch LH terminal 1
Ito front door switch LH terminal 2
Ithrough body grounds B11, B22 and D210.
When the front door switch RH is OPEN, ground is supplied
Ito smart entrance control unit terminal 40
Ithrough front door switch RH body ground.
When the other door switches are OPEN, ground is supplied
Ito smart entrance control unit terminal 28
Ithrough other door switches body grounds.
Remote controller signal is inputted to smart entrance control unit (The antenna of the system is combined
with smart entrance control unit).
OPERATIONNBEL0112S03The multi-remote control system controls operation of the
Ipower door lock
Iinterior lamp
Ipanic alarm
Ihazard and horn reminder
OPERATED PROCEDURENBEL0112S02Power Door Lock OperationNBEL0112S0201Smart entrance control unit receives a LOCK signal from remote controller. Smart entrance control unit locks
all doors with input of LOCK signal from remote controller.
When an UNLOCK signal is sent from remote controller once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from remote controller again within 5 seconds, all other door will be
unlocked.
Hazard and Horn ReminderNBEL0112S0204When smart entrance control unit receives LOCK or UNLOCK signal from remote controller with all doors
closed, ground is supplied
Ito multi-remote control relay terminal 2
Ithrough smart entrance control unit terminal 7, and
Ito horn relay terminal 2
Ithrough smart entrance control unit terminal 19
Multi-remote control relay and horn relay are now energized, and hazard warning lamp flashes and horn
sounds as a reminder.
The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating function of hazard and horn reminder
Horn chirp mode (C mode) Non-horn chirp mode (S mode)
Hazard warning lamp
flashHorn soundHazard warning lamp
flashHorn sound
Lock Twice Once Twice Ð
Unlock Once Ð Ð Ð
How to change hazard and horn reminder mode
When LOCK and UNLOCK signals are sent from the remote controller for more than 2 seconds at the same
time, the hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as
follows:
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MULTI-REMOTE CONTROL SYSTEM
System Description (Cont'd)
EL-271

greatly depending on the cellular network and cellular signal
strength. The system resets to ready when the system com-
pletes the dialing attempts. The vehicle owner can press the
button again if he or she still needs to contact the Communi-
cator Response Center.
IINFINITI Communicator automatically redials if communication
between the vehicle owner and Communicator Response Cen-
ter is lost for some reason.
IThe only way for a transmission to be officially terminated is for
the Communicator Response Center to send an end transmis-
sion signal, which turns off the indicator in the switch. (Com-
munication with Communicator Response Center can not be
terminated by the occupant.)
IIf the vehicle owner start the engine during a call, the conver-
sation may be interrupted. When this happens the system may
try to resume transmission once after the engine has been
started.
SEL526V
GPS (GLOBAL POSITIONING SYSTEM)NBEL0180S09GPS is the global positioning system developed and operated by
the US Department of Defense. GPS satellites (NAVSTAR) trans-
mit radio waves and orbit around the earth at an altitude of approxi-
mately 21,000 km (13,000 miles).
GPS receiver calculates the three-dimensional position of the
vehicle (latitude, longitude, and altitude from the sea level) by the
time difference of the radio wave arriving from more than four GPS
satellites (three-dimensional positioning).
When the radio wave is received from only three GPS satellites, the
two-dimensional position (latitude and longitude) is calculated,
using the altitude from the sea level data calculated by using four
GPS satellites (two-dimensional positioning).
Positioning capability is degraded in the following cases.
IIn two-dimensional positioning, when the vehicle's altitude
from the sea level changes, the precision becomes lower.
IThe location detection performance can have an error of about
100 m (300 ft) even in three-dimensional positioning with high
precision. Because the precision is influenced by the location
of GPS satellites used for positioning, the location detection
performance may drop depending on the location of GPS sat-
ellites.
IWhen the radio wave from GPS satellites cannot be received,
for example, when the vehicle is in a tunnel, in a parking lot
inside building, under an elevated superhighway or near strong
power lines, the location may not be detected. Turbulent/
electric weather conditions may also affect positioning perfor-
mance. If something is placed on the antenna, the radio wave
from GPS satellites may not be received.
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INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
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ªDATA MONITORº MODENBEL0183S04How to Perform Data MonitorNBEL0183S0401
SEL444W
Data Monitor Item ChartNBEL0183S0402
Mode Monitor item Description
GPS MONITORAVAILABLE GPS The number of GPS satellites captured by GPS antenna
DATE Date of Greenwich mean time
GMT TIME Greenwich mean time (Different from local time)
LAT. Latitude
LONG. Longitude
DOPIndex of precision (an index of location status of GPS satellites. The
smaller the value is, the higher the positioning precision is.)
SWITCH MONITORMAYDAY ªMAYDAYº emergency switch condition
INFORMATION ªINFORMATIONº switch condition
DR HANDLE Back door handle switch condition
INFINITI COMMUNICATOR (IVCS)
CONSULT-II (Cont'd)
EL-366