2001 INFINITI QX4 fuse

Component Parts and Harness Connector
Location
NBEL0161
SEL460X
System DescriptionNBEL0192The headlamp system for Canada vehicles contains a daytime light control unit that activates the high beam
headlamps at approximately half illumination whenever the engine is running. If the parking brake is applied
before the engine is started the daytime lights will not be illuminated. The daytime lights will illuminate once
the parking brake is released. Thereafter, the daytime lights will continue to operate when the parking brake
is applied.
And battery saver system is controlled by the headlamp battery saver control unit and smart entrance control
unit.
Power is supplied at all times
Ito headlamp LH relay terminals 1 and 3
Ithrough 15A fuse (No. 60, located in the fuse and fusible link box), and
Ito headlamp LH relay terminal 6
Ithrough 20A fuse (No. 32, located in the fuse and fusible link box), and
Ito headlamp RH relay terminals 1 and 3
Ithrough 15A fuse (No. 59, located in the fuse and fusible link box), and
Ito headlamp RH relay terminal 6
Ithrough 20A fuse (No. 31, located in the fuse and fusible link box), and
Ito headlamp battery saver control unit terminal 7, and
Ito smart entrance control unit terminal 10
Ithrough 7.5A fuse [No. 24, located in the fuse block (J/B)].
Ground is supplied
Ito daytime light control unit terminal 16,
Ito auto light control unit terminal 5 and
Ito headlamp battery saver control unit terminals 4 and 11.
When the ignition switch is in the ON or START position, power is also supplied
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Component Parts and Harness Connector Location
EL-46

Ito daytime light control unit terminal 3,
Ito auto light control unit terminal 1,
Ito headlamp battery saver control unit terminal 10, and
Ito smart entrance control unit terminal 33
Ithrough 7.5A fuse [No. 11, located in the fuse block (J/B)], and
Ito headlamp battery saver control unit terminal 1
Ithrough 10A fuse [No. 16, located in the fuse block (J/B)].
When the ignition switch is in the START position, power is supplied
Ito daytime light control unit terminal 2
Ithrough 7.5A fuse [No. 26, located in the fuse block (J/B)].
When the ignition switch is in the ACC or ON position, power is supplied
Ito auto light control unit terminal 2
Ithrough 10A fuse [No. 9, located in the fuse block (J/B)].
HEADLAMP OPERATIONNBEL0192S01Power Supply to Low Beam and High BeamNBEL0192S0101When lighting switch is in 2ND or PASS position, ground is supplied
Ito headlamp relay (LH and RH) terminal 2 from headlamp battery saver control unit terminals 2 and 8
Ithrough headlamp battery saver control unit terminal 3 and 9
Ifrom lighting switch terminal 12.
Headlamp relays (LH and RH) are energized.
Low Beam OperationNBEL0192S0102When the lighting switch is turned to 2ND and LOW (ªBº) positions, power is supplied
Ifrom terminal 7 of each headlamp relay
Ito terminal 3 of each headlamp
Ground is supplied
Ito terminal 4 of each headlamp
Ithrough body grounds E13 and E41.
With power and ground supplied, the low beam headlamps illuminate.
High Beam Operation/Flash-to-pass OperationNBEL0192S0103When the lighting switch is turned to 2ND and HIGH (ªAº) or PASS (ªCº) positions, power is supplied
Ito terminal 1 of headlamp LH
Ithrough daytime light control unit terminals 6 and 5
Ifrom headlamp LH relay terminal 5
Ito terminal 1 of headlamp RH
Ithrough daytime light control unit terminals 7 and 4
Ifrom headlamp RH relay terminal 5, and
Ito combination meter terminal 26 for HIGH BEAM indicator
Ifrom headlamp LH relay terminal 5.
Ground is supplied
Ito terminal 2 of LH headlamp
Ithrough daytime light control unit terminals 10 and 13, and
Ito combination meter terminal 27 for the HIGH BEAM indicator
Ithrough lighting switch terminals 6 and 5
Ithrough body grounds E13 and E41, and
Ito terminal 2 of RH headlamp
Ithrough daytime light control unit terminals 9 and 14
Ithrough lighting switch terminals 9 and 8
Ithrough body grounds E13 and E41.
With power and ground supplied, the high beam headlamps and HIGH BEAM indicator illuminate.
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HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
System Description (Cont'd)
EL-47

System DescriptionNBEL0196The headlamp aiming operation is controlled by the headlamp aiming switch.
Power is supplied at all times.
Ithrough 10A fuse (No. 61, located in fuse and fusible link box)
Ito tail lamp relay terminal 2 and 3.
When lighting switch is in 1ST or 2ND position, ground is supplied
Ito tail lamp relay terminal 1.
Ithrough lighting switch and body grounds E13 and E41,
and then tail lamp relay is energized.
When auto light operation is performed, ground is supplied
Ito tail lamp relay terminal 1
Ithrough auto light control unit terminal 7,
and then tail lamp relay is energized.
When tail lamp relay is energized, power is supplied
Ifrom tail lamp relay terminal 5
Ito terminal 1 of each headlamp aiming motor.
Ground is supplied
Ito terminal 3 of each headlamp aiming motor
Ithrough body grounds E13 and E41,
Ito terminal 2 of each headlamp aiming motor
Ithrough headlamp aiming switch and body grounds E13 and E41.
With power and ground supplied, headlamp aiming motors operate according to the aiming switch position.GI
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HEADLAMP Ð HEADLAMP AIMING CONTROL Ð
System Description
EL-59

System DescriptionNBEL0162The parking, license and tail lamp operation is controlled by the lighting switch which is built into the combi-
nation switch and headlamp battery saver control unit. The battery saver system is controlled by the head-
lamp battery saver control unit and smart entrance control unit.
Power is supplied at all times
Ito tail lamp relay terminals 2 and 3
Ithrough 10A fuse (No. 61, located in the fuse and fusible link box), and
Ito headlamp battery saver control unit terminal 7, and
Ito smart entrance control unit terminal 10
Ithrough 7.5A fuse [No. 24, located in the fuse block (J/B)].
When ignition switch is in ON or START position, power is supplied
Ito headlamp battery saver control unit terminal 1
Ithrough 10A fuse [No. 16, located in the fuse block (J/B)], and
Ito headlamp battery saver control unit terminal 10, and
Ito smart entrance control unit terminal 33
Ithrough 7.5A fuse [No. 11, located in the fuse block (J/B)].
Ground is supplied to headlamp battery saver control unit terminals 4 and 11.
LIGHTING OPERATION BY LIGHTING SWITCHNBEL0162S01When lighting switch is in 1ST (or 2ND) position, ground is supplied
Ito tail lamp relay terminal 1 from headlamp battery saver control unit terminals 6 and 14
Ithrough headlamp battery saver control unit terminals 5 and 13, and
Ito combination switch (lighting switch) terminal 11
Ithrough combination switch (lighting switch) terminal 5
Ithrough body grounds E13 and E41.
Tail lamp relay is then energized and the parking, license and tail lamps illuminate.
LIGHTING OPERATION BY AUTO LIGHT CONTROL SYSTEMNBEL0162S03When auto light control system is operated, ground is supplied
Ito tail lamp relay terminal 1 from headlamp battery saver control unit terminals 6 and 14
Ithrough headlamp battery saver control unit terminals 5 and 13, and
Ithrough auto light control unit terminal 7.
Tail lamp relay is then energized and the parking, license and tail lamps illuminate.
BATTERY SAVER CONTROLNBEL0162S02When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while parking, license and
tail 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
terminals 6 and 14 is terminated.
Then the parking, license and tail lamps are turned off.
The parking, license and tail 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 parking, license and tail lamps are illuminated.
When the lighting switch is turned from OFF to 1ST (or 2ND) after the parking, license and tail 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 the parking, license and tail lamps illuminate again.
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PARKING, LICENSE AND TAIL LAMPS
System Description
EL-61

Trouble DiagnosesNBEL0164
Symptom Possible cause Repair order
No lamps operate (including head-
lamps).1. 7.5A fuse
2. Lighting switch
3. Headlamp battery saver control
unit1. Check 7.5A fuse [No. 24, lacated in fuse block
(J/B)]. Verify battery positive voltage is present at
terminal 7 of headlamp battery saver control unit.
2. Check lighting switch.
3. Check headlamp battery saver control unit. (EL-42)
No parking, license and tail lamps
operate, but headlamps do operate.1. 10A fuse
2. Tail lamp relay
3. Tail lamp relay circuit
4. Lighting switch
5. Lighting switch circuit
6. Headlamp battery saver control
unit1. Check 10A fuse (No. 61, located in fusible and fuse
block). Verify battery positive voltage is present at
terminals 2 and 3 of tail lamp relay.
2. Check tail lamp relay.
3. Check the following.
a. Harness between headlamp battery saver control
unit terminals 6 and 14 and tail lamp relay terminal
1
b. Harness between tail lamp relay terminal 5 and fuse
block
4. Check lighting switch.
5. Check the following.
a. Harness between lighting switch terminal 11 and
headlamp battery saver control unit terminals 5 and
13
b. Harness between lighting switch terminal 5 and
ground
6. Check headlamp battery saver control unit. (EL-42)
Battery saver control does not
operate properly.1. RAP signal circuit
2. Driver or passenger side door
switch circuit
3. Lighting switch circuit
4. Headlamp battery saver control
unit
5. Smart entrance control unit1. Check harness between headlamp battery saver
control unit terminal 10 and smart entrance control
unit terminal 5 for open or short circuit.
2. Check the following.
a. Harness between smart entrance control unit and
driver or passenger side door switch for open or
short circuit
b. Driver or passenger side door switch ground circuit
c. Driver or passenger side door switch.
3. Check the following.
a. Harness between headlamp battery saver control
unit terminals 5 or 13 and lighting switch terminal 11
for open or short circuit
b. Harness between lighting switch terminal 5 and
ground
c. Lighting switch
4. Check headlamp battery saver control unit. (EL-42)
5. Check smart entrance control unit. (EL-324)
PARKING, LICENSE AND TAIL LAMPS
Trouble Diagnoses
EL-66

System DescriptionNBEL0027OUTLINENBEL0027S02Power is supplied at all times
Ito headlamp RH relay terminals 1 and 3
Ithrough 15A fuse (No. 59, located in the fuse and fusible link box), and
Ito headlamp battery saver control unit terminal 7
Ito smart entrance control unit terminal 10
Ithrough 7.5A fuse [No. 24, located in the fuse block (J/B)], and
Ito front fog lamp relay terminal 3
Ithrough 15A fuse (No. 53, located in the fuse and fusible link box).
When ignition switch is in ON or START position, power is supplied
Ito headlamp battery saver control unit terminal 1
Ithrough 10A fuse [No. 16, located in the fuse block (J/B)], and
Ito headlamp battery saver control unit terminal 10, and
Ito smart entrance control unit terminal 33
Ithrough 7.5A fuse [No. 11, located in the fuse block (J/B)].
Ground is supplied to headlamp battery saver control unit terminals 4 and 11.
When lighting system is in 2ND position, ground is supplied
Ito headlamp RH relay terminal 2 from headlamp battery saver control unit terminals 2 and 8
Ithrough headlamp battery saver control unit terminals 3 and 9,
Ithrough lighting switch terminal 12, and
Ithrough body grounds E13 and E41.
Headlamp RH relay is then energized.
FRONT FOG LAMP OPERATIONNBEL0027S01The front fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position
and LOW (ªBº) position for front fog lamp operation.
With the front fog lamp switch in the ON position, ground is supplied
Ito front fog lamp relay terminal 2
Ithrough the front fog lamp switch, lighting switch and body grounds E13 and E41.
The front fog lamp relay is energized and power is supplied
Ifrom front fog lamp relay terminal 5
Ito terminal 1 of each front fog lamp.
Ground is supplied to terminal 3 of each front fog lamp through body grounds E13 and E41.
With power and ground supplied, the front fog lamps illuminate.
BATTERY SAVER CONTROLNBEL0027S03When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while front fog 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 2 of headlamp RH relay from headlamp battery saver control unit
teminals 2 and 8 are terminated.
Then front fog lamps are turned to off.
Front fog 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 front fog lamps
are illuminated.
When the lighting switch is turned from OFF to 2ND after front fog 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 headlamp RH relay terminal 2 from headlamp battery saver control unit terminals 2 and 8
Ithrough headlamp battery saver control unit terminals 3 and 9, and
Ithrough lighting switch terminal 12.
Then the front fog lamps illuminate again.
FRONT FOG LAMP
System Description
EL-70

System DescriptionNBEL0030TURN SIGNAL OPERATIONNBEL0030S01With the hazard switch in the OFF position and the ignition switch in the ON or START position, power is sup-
plied
Ithrough 7.5A fuse [No. 12, located in the fuse block (J/B)]
Ito hazard switch terminal 2
Ithrough terminal 1 of the hazard switch
Ito combination flasher unit terminal 1
Ithrough terminal 3 of the combination flasher unit
Ito turn signal switch terminal 1.
Ground is supplied to combination flasher unit terminal 2 through body grounds M4, M66 and M147.
LH TurnNBEL0030S0101When the turn signal switch is moved to the LH position, power is supplied from turn signal switch terminal 3
to
Ifront fog lamp LH (turn signal) terminal 2
Icombination meter terminal 25
Irear combination lamp LH terminal 5.
Ground is supplied to the front fog lamp LH (turn signal) terminal 3 through body grounds E13 and E41.
Ground is supplied to the rear combination lamp LH terminal 6 through body grounds B11, B22 and D210.
Ground is supplied to combination meter terminal 30 through body grounds M4, M66 and M147.
With power and ground supplied, the combination flasher unit controls the flashing of the LH turn signal lamps.
RH TurnNBEL0030S0102When the turn signal switch is moved to the RH position, power is supplied from turn signal switch terminal
2to
Ifront fog lamp RH (turn signal) terminal 2
Icombination meter terminal 29
Irear combination lamp RH terminal 5.
Ground is supplied to the front fog lamp RH (turn signal) terminal 3 through body grounds E13 and E41.
Ground is supplied to the rear combination lamp RH terminal 6 through body grounds B55 and B75.
Ground is supplied to combination meter terminal 30 through body grounds M4, M66 and M147.
With power and ground supplied, the combination flasher unit controls the flashing of the RH turn signal lamps.
HAZARD LAMP OPERATIONNBEL0030S02Power is supplied at all times to hazard switch terminal 3 through:
I15A fuse [No. 20, located in the fuse block (J/B)].
With the hazard switch in the ON position, power is supplied
Ithrough terminal 1 of the hazard switch
Ito combination flasher unit terminal 1
Ithrough terminal 3 of the combination flasher unit
Ito hazard switch terminal 4.
Ground is supplied to combination flasher unit terminal 2 through body grounds M4, M66 and M147.
Power is supplied through terminal 5 of the hazard switch to
Ifront fog lamp LH (turn signal) terminal 2
Icombination meter terminal 25
Irear combination lamp LH terminal 5.
Power is supplied through terminal 6 of the hazard switch to
Ifront fog lamp RH (turn signal) terminal 2
Icombination meter terminal 29
Irear combination lamp RH terminal 5.
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TURN SIGNAL AND HAZARD WARNING LAMPS
System Description
EL-75

Ground is supplied to terminal 3 of each front fog lamp (turn signal) through body grounds E13 and E41.
Ground is supplied to terminal 6 of the rear combination lamp LH through body grounds B11, B22 and D210.
Ground is supplied to terminal 6 of the rear combination lamp RH through body grounds B55 and B75.
Ground is supplied to combination meter terminal 30 through body grounds M4, M66 and M147.
With power and ground supplied, the combination flasher unit controls the flashing of the hazard warning
lamps.
MULTI-REMOTE CONTROL SYSTEM OPERATIONNBEL0030S03Power is supplied at all times
Ithrough 15A fuse [No. 20, located in the fuse block (J/B)]
Ito multi-remote control relay terminals 1, 3 and 6.
Ground is supplied to multi-remote control relay terminal 2, when the multi-remote control system is triggered
through the smart entrance control unit.
Refer to ªMULTI-REMOTE CONTROL SYSTEMº, EL-270.
The multi-remote control relay is energized.
Power is supplied through terminal 7 of the multi-remote control relay
Ito front fog lamp LH (turn signal) terminal 2
Ito combination meter terminal 25
Ito rear combination lamp LH terminal 5.
Power is supplied through terminal 5 of the multi-remote control relay
Ito front fog lamp RH (turn signal) terminal 2
Ito combination meter terminal 29
Ito rear combination lamp RH terminal 5.
Ground is supplied to terminal 3 of each front fog lamp (turn signal) through body grounds E13 and E41.
Ground is supplied to terminal 6 of the rear combination lamp LH through body grounds B11, B22 and D210.
Ground is supplied to terminal 6 of the rear combination lamp RH through body grounds B55 and B75.
Ground is supplied to combination meter terminal 30 through body grounds M4, M66 and M147.
With power and ground supplied, the smart entrance control unit controls the flashing of the hazard warning
lamps.
TURN SIGNAL AND HAZARD WARNING LAMPS
System Description (Cont'd)
EL-76