Infiniti QX4 (R50). Manual — part 313
Wiring Diagram — BACK/L —
NBEL0026
MEL778L
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
BACK-UP LAMP
Wiring Diagram — BACK/L —
EL-69
System Description
NBEL0027
OUTLINE
NBEL0027S02
Power is supplied at all times
I
to headlamp RH relay terminals 1 and 3
I
through 15A fuse (No. 59, located in the fuse and fusible link box), and
I
to headlamp battery saver control unit terminal 7
I
to smart entrance control unit terminal 10
I
through 7.5A fuse [No. 24, located in the fuse block (J/B)], and
I
to front fog lamp relay terminal 3
I
through 15A fuse (No. 53, located in the fuse and fusible link box).
When ignition switch is in ON or START position, power is supplied
I
to headlamp battery saver control unit terminal 1
I
through 10A fuse [No. 16, located in the fuse block (J/B)], and
I
to headlamp battery saver control unit terminal 10, and
I
to smart entrance control unit terminal 33
I
through 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
I
to headlamp RH relay terminal 2 from headlamp battery saver control unit terminals 2 and 8
I
through headlamp battery saver control unit terminals 3 and 9,
I
through lighting switch terminal 12, and
I
through body grounds E13 and E41.
Headlamp RH relay is then energized.
FRONT FOG LAMP OPERATION
NBEL0027S01
The front fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position
and LOW (“B”) position for front fog lamp operation.
With the front fog lamp switch in the ON position, ground is supplied
I
to front fog lamp relay terminal 2
I
through the front fog lamp switch, lighting switch and body grounds E13 and E41.
The front fog lamp relay is energized and power is supplied
I
from front fog lamp relay terminal 5
I
to 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 CONTROL
NBEL0027S03
When 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
I
to headlamp battery saver control unit terminals 5 and 13 from lighting switch terminal 11, and
I
to headlamp RH relay terminal 2 from headlamp battery saver control unit terminals 2 and 8
I
through headlamp battery saver control unit terminals 3 and 9, and
I
through lighting switch terminal 12.
Then the front fog lamps illuminate again.
FRONT FOG LAMP
System Description
EL-70
NOTE:
For Trouble Diagnoses for battery saver control, refer to “HEADLAMP (FOR USA)”, EL-40.
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
FRONT FOG LAMP
System Description (Cont’d)
EL-71
Wiring Diagram — F/FOG —
NBEL0028
MEL004O
FRONT FOG LAMP
Wiring Diagram — F/FOG —
EL-72
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