2001 INFINITI QX4 Factory Service Manual

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Page 1241 of 2395

INFINITI QX4 2001 Factory Service Manual Trouble DiagnosesNBEL0193DAYTIME LIGHT CONTROL UNIT INSPECTION TABLENBEL0193S01
Terminal
No.Wire
colorItem ConditionVoltage
(Approximate values)
1 Y/B Alternator
When turning ignition switch to ªONº

Page 1242 of 2395

INFINITI QX4 2001 Factory Service Manual Terminal
No.Wire
colorItem ConditionVoltage
(Approximate values)
7 L/R RH hi beam When lighting switch is turned to the 2ND position with
ªHI BEAMº positionBattery voltage
When releasing parking bra

Page 1243 of 2395

INFINITI QX4 2001 Factory Service Manual Aiming AdjustmentNBEL0195Refer to ªHEADLAMP (FOR USA)º (EL-44).
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Aiming Adjustment
EL-58

Page 1244 of 2395

INFINITI QX4 2001 Factory Service Manual 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)
It

Page 1245 of 2395

INFINITI QX4 2001 Factory Service Manual Wiring Diagram Ð H/AIM ÐNBEL0197
MEL772L
HEADLAMP Ð HEADLAMP AIMING CONTROL Ð
Wiring Diagram Ð H/AIM Ð
EL-60

Page 1246 of 2395

INFINITI QX4 2001 Factory Service Manual 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 ba

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.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
PARKING, LICENSE AND TAIL LAMPS
System Description
EL-61

Page 1247 of 2395

INFINITI QX4 2001 Factory Service Manual SchematicNBEL0163
MEL773L
PARKING, LICENSE AND TAIL LAMPS
Schematic
EL-62

Page 1248 of 2395

INFINITI QX4 2001 Factory Service Manual Wiring Diagram Ð TAIL/L ÐNBEL0024
MEL003O
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
PARKING, LICENSE AND TAIL LAMPS
Wiring Diagram Ð TAIL/L Ð
EL-63

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