turn signal INFINITI QX4 2001 Factory Service Manual

Wiring Diagram Ð TURN ÐNBEL0032
MEL781L
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TURN SIGNAL AND HAZARD WARNING LAMPS
Wiring Diagram Ð TURN Ð
EL-77

MEL782L
TURN SIGNAL AND HAZARD WARNING LAMPS
Wiring Diagram Ð TURN Ð (Cont'd)
EL-78

Trouble DiagnosesNBEL0033
Symptom Possible cause Repair order
Turn signal and hazard warning
lamps do not operate.1. Hazard switch
2. Combination flasher unit
3. Open in combination flasher
unit circuit1. Check hazard switch.
2. Refer to combination flasher unit check.
3. Check wiring to combination flasher unit for open
circuit.
Turn signal lamps do not operate
but hazard warning lamps operate.1. 7.5A fuse
2. Hazard switch
3. Combination switch (turn signal)
4. Open in combination switch
(turn signal) circuit1. Check 7.5A fuse [No. 12, located in fuse block
(J/B)]. Turn ignition switch ON and verify battery
positive voltage is present at terminal 2 of hazard
switch.
2. Check hazard switch.
3. Check combination switch (turn signal).
4. Check the wire between combination flasher unit
terminal 3 and combination switch (turn signal) ter-
minal 1 for open circuit.
Hazard warning lamps do not oper-
ate but fog lamps (turn signal)
operate.1. 15A fuse
2. Hazard switch
3. Open in hazard switch circuit1. Check 15A fuse [No. 20, located in fuse block (J/B)].
Verify battery positive voltage is present at terminal
3 of hazard switch.
2. Check hazard switch.
3. Check the wire between combination flasher unit
terminal 3 and hazard switch terminal 4 for open cir-
cuit.
Front fog lamp (turn signal) LH or
RH does not operate.1. Bulb
2. Grounds E13 and E41
3. Open in front fog lamp (turn sig-
nal) circuit1. Check bulb.
2. Check grounds E13 and E41.
3. Check harness between front fog lamp (turn signal)
and combination switch.
Rear combination lamp LH does
not operate.1. Bulb
2. Grounds B11, B22 and D210
3. Open in rear combination lamp
LH circuit1. Check bulb.
2. Check grounds B11, B22 and D210.
3. Check harness between rear combination lamp LH
and hazard switch.
Rear combination lamp RH does
not operate.1. Bulb
2. Grounds B55 and B75
3. Open in rear combination lamp
RH circuit1. Check bulb.
2. Check grounds B55 and B75.
3. Check harness between rear combination lamp RH
and hazard switch.
LH and RH turn indicators do not
operate.1. Ground 1. Check grounds M4, M66 and M147.
LH or RH turn indicator does not
operate.1. Bulb
2. Open in turn indicator circuit1. Check bulb in combination meter.
2. Check harness between combination meter and haz-
ard switch.
SEL122E
Electrical Components InspectionNBEL0034COMBINATION FLASHER UNIT CHECKNBEL0034S01IBefore checking, ensure that bulbs meet specifications.
IConnect a battery and test lamp to the combination flasher
unit, as shown. Combination flasher unit is properly function-
ing if it blinks when power is supplied to the circuit.
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TURN SIGNAL AND HAZARD WARNING LAMPS
Trouble Diagnoses
EL-79

Component Connector No. Power terminal Ground terminal
IVCS switch R10 2 12
Display & NAVI control unit M117, M118 8 24
A/C auto amp. M102 24 25
Clock M39 3 4
Globe box lamp M30 1 2
The ground for all of the components except for compass, glove box lamp and ashtray are controlled through
terminals 2 and 3 of the illumination control switch and body grounds M77 and M111.
BATTERY SAVER CONTROLNBEL0035S02When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while illumination lamps
are illuminated, the RAP signal is supplied to terminal 10 of the headlamp battery saver control unit from smart
entrance control unit terminal 5.
After counting 45 seconds by the RAP signal from the smart entrance control unit to headlamp battery saver
control unit, the ground supply to terminal 1 of the tail lamp relay from headlamp battery saver control unit
teminals 6 and 14 is terminated.
Then illumination lamps are turned off.
Illumination lamps are turned off when driver or passenger side door is opened even if 45 seconds have not
passed after the ignition switch is turned from ON (or START) to OFF (or ACC) positions while illumination
lamps are illuminated.
When the lighting switch is turned from OFF to 1ST (or 2ND) after illumination lamps are turned off by the
battery saver control, ground is supplied
Ito headlamp battery saver control unit terminals 5 and 13 from lighting switch terminal 11, and
Ito tail lamp relay terminal 1 from headlamp battery saver control unit terminals 6 and 14.
Then illumination lamps illuminate again.
NOTE:
For Trouble Diagnoses for battery saver control, refer to ªPARKING, LICENSE AND TAIL LAMPSº
(EL-66).
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ILLUMINATION
System Description (Cont'd)
EL-81

And power is supplied:
Ito vanity mirror illuminations (LH and RH) terminals 1
Ifrom smart entrance control unit terminal 17.
With power and ground supplied, interior lamps turn ON.
INTERIOR LAMP TIMER OPERATIONNBEL0038S08When interior lamp switch is in the ªDOORº position, the smart entrance control unit keeps the interior lamp
illuminated for about 30 seconds when:
Iunlock signal is supplied from driver's door unlock sensor while all doors are closed and key is removed
from ignition key cylinder
Iunlock signal is supplied from multi-remote controller while all doors are closed and driver's door is locked
Ikey is removed from ignition key cylinder while all doors are closed
Idriver's door is opened and then closed while key is removed from the iginition key cylinder. (However, if
the driver's door is closed with the key insered in the ignition key cylinder after the driver's door is opened
with the key removed, the timer is operated.)
The timer is canceled when:
Idriver's door is locked,
Idriver's door is opened, or
Iignition switch is turned ON.
ON-OFF CONTROLNBEL0038S09When the driver side door, front passenger door, rear LH, RH door or back door is opened, the interior room
lamp turns on while the interior room lamp switch is in the ªDOORº position.
BATTERY SAVERNBEL0038S10The lamp turns off automatically when interior lamp, luggage room lamp, spot lamp and/or vanity mirror illu-
mination is illuminated with the ignition key is in OFF position, if the lamp remains lit by the door switch open
signal or if the lamp switch is in ON position for more than 10 minutes.
After lamps turn OFF by the battery saver system, the lamps illuminate again when:
Idriver's door is locked or unlocked,
Idoor is opened or closed,
Ikey is inserted or removed in ignition key cylinder.
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INTERIOR, SPOT, VANITY MIRROR AND LUGGAGE ROOM LAMPS
System Description (Cont'd)
EL-89

MEL005H
VEHICLE SPEED SENSOR SIGNAL CHECKNBEL0202S041. Remove vehicle speed sensor from transmission.
2. Turn vehicle speed sensor pinion quickly and measure voltage
across a and b.
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METERS AND GAUGES
Electrical Components Inspection (Cont'd)
EL-109

SEAT BELT BUCKLE SWITCH CHECK=NBEL0055S05
1 CHECK SEAT BELT BUCKLE SWITCH INPUT SIGNAL
1. Turn ignition switch ªONº.
2. Check voltage between smart entrance control unit terminal 22 and ground.
SEL380X
OK or NG
OK©Seat belt buckle switch is OK.
NG©GO TO 2.
2 CHECK SEAT BELT BUCKLE SWITCH
Check continuity between terminals 1 and 2 when seat belt is fastened and unfastened.
SEL381X
OK or NG
OK©Check the following.
ISeat belt buckle switch ground circuit
IHarness for open or short between smart entrance control unit and seat belt buckle
switch
NG©Replace seat belt buckle switch.
WARNING CHIME
Trouble Diagnoses (Cont'd)
EL-134

Trouble DiagnosesNBEL0075DIAGNOSTIC PROCEDURENBEL0075S01SYMPTOM: Rear window defogger does not activate, or does
not go off after activating.
1 CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
1. Turn ignition switch to ON position.
2. Check voltage between smart entrance control unit harness terminal 2 and ground.
SEL384X
OK or NG
OK©Check the following.
IRear window defogger relay
(Refer to EL-157.)
IRear window defogger circuit
IRear window defogger filament
(Refer to EL-157.)
NG©GO TO 2.
2 CHECK DEFOGGER RELAY COIL SIDE CIRCUIT
1. Disconnect smart entrance control unit connector.
2. Turn ignition switch to ON position.
3. Check voltage between smart entrance control unit terminal 2 and ground.
SEL385X
OK or NG
OK©GO TO 3.
NG©Check the following.
I7.5A fuse [No. 11, located in the fuse block (J/B)]
IRear window defogger relay
IHarness for open or short between rear window defogger relay and smart entrance
control unit
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REAR WINDOW DEFOGGER
Trouble Diagnoses
EL-155

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

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