Infiniti Q45 (FY33). Manual — part 277
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Terminal
No.
Wire color
Item
Condition
Judgement
standard
8
R/W
RH low
beam
(Ground)
When turning lighting switch “2ND” and
LOW (“B”) position
Less than 1V
9
B/W
RH high
beam
(Ground)
When turning lighting switch to “2ND” and
HIGH (“A”) or PASS (“C”) positions
Less than 1V
When releasing parking brake with engine
running and turning lighting switch to “OFF”
(daytime light operation)
CAUTION:
Block wheels and ensure
selector lever is in N or P position.
Approx. half battery voltage
10
R
LH high
beam
(Ground)
When turning lighting switch to “2ND” and
HIGH (“A”) or PASS (“C”) positions
Less than 1V
When releasing parking brake with engine
running and turning lighting switch to “OFF”
(daytime light operation)
CAUTION:
Block wheels and ensure
selector lever is in N or P position.
Less than 1V
11
G/W
LH low
beam
(Ground)
When turning lighting switch “2ND” and
LOW (“B”) position
Less than 1V
12
Y/B
Lighting
switch
(LH low
beam)
When turning lighting switch “2ND” and
LOW (“B”) position
Less than 1V
13
W
Lighting
switch
(LH high
beam)
When turning lighting switch “2ND” and
HIGH (“A”) or PASS (“C”) position
Less than 1V
14
B/W
Lighting
switch
(RH high
beam)
When turning lighting switch “2ND” and
HIGH (“A”) or PASS (“C”) position
Less than 1V
15
G/Y
Lighting
switch
(RH low
beam)
When turning lighting switch “2ND” and
LOW (“B”) position
Less than 1V
16
B
Ground
—
—
17
OR
Parking
brake switch
When parking brake is released
Battery voltage
When parking brake is set
Less than 1.5V
Bulb Replacement/Conventional Type
For bulb replacement, refer to EL-76.
Bulb Specifications/Conventional Type
For bulb specifications, refer to EL-76.
Aiming Adjustment/Conventional Type
For aiming adjustment, refer to EL-76.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
HEADLAMP (FOR CANADA) — CONVENTIONAL TYPE —
Trouble Diagnoses (Cont’d)
EL-99
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Component Parts and Harness Connector
Location
SEL140Y
Daytime Light System/System Description
The 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.
Power is supplied at all times
I
through 15A fuse (No.
54
, located in the fuse, fusible link and relay box)
I
to headlamp relay terminal
q
1
, and
I
to headlamp relay terminal
q
7
, and
I
through 15A fuse (No.
53
, located in the fuse, fusible link and relay box)
I
to headlamp relay terminal
q
5
.
Power is also supplied at all times
I
to HID relay terminal
q
1
, and
I
through 20A fuse (No.
61
, located in the fuse, fusible link and relay box)
I
to HID relay terminal
q
3
, and
I
through 20A fuse (No.
59
, located in the fuse, fusible link and relay box)
I
to HID relay terminal
q
6
, and
With the ignition switch in the ON or START position, power is supplied
I
through 7.5A fuse [No.
20
, located in the fuse block (J/B)]
I
to daytime light control unit terminal
q
3
.
With the ignition switch in the START position, power is supplied
I
through 7.5A fuse [No.
34
, located in the fuse block (J/B)]
I
to daytime light control unit terminal
q
2
.
Ground is supplied to daytime light control unit terminal
q
16
through body grounds
E22
and
E36
.
HEADLAMP SWITCH OPERATION
When the lighting switch is turned to 2ND or PASS (“C”) positions, ground is supplied
HEADLAMP (FOR CANADA) — XENON TYPE —
EL-100
![](/vehicles/zatt/fitanyou/tushi/ply.png)
I
to headlamp relay terminal
q
2
and HID relay terminal
q
2
I
from the lighting switch terminal
q
12
.
Headlamp relay is then energized, and power is supplied
I
from the headlamp relay terminal
q
6
I
to combination meter terminal
q
22
for the HIGH BEAM indicator and
I
through daytime light control unit terminals
q
5
and
q
6
I
to terminal
q
1
of the LH headlamp.
Power is also supplied
I
from the headlamp relay terminal
q
3
I
through daytime light control unit terminals
q
4
and
q
7
I
to terminal
q
1
of the RH headlamp.
HID relay is also energized, and power is supplied.
I
from the HID relay terminal
q
5
I
to terminal
q
2
LH headlamp
Power is also supplied
I
from the HID relay terminal
q
7
I
to terminal
q
2
RH headlamp
Ground is supplied at all times.
I
to LH headlamp terminal
q
4
and RH headlamp terminal
q
4
I
through body ground
E22
and
E36
.
Low beam operation
When the lighting switch is turned to 2ND (LOW or HI) or PASS (“C”) position, the low beam headlamps illu-
minate.
High beam operation/flash-to-pass operation
When the lighting switch is turned to 2ND and HIGH (“A”) or PASS (“C”) position, ground is supplied
I
to terminal
q
3
of LH headlamp and combination meter terminal
q
23
for the HIGH BEAM indicator
I
through daytime light control unit terminals
q
10
and
q
13
I
through lighting switch terminals
q
9
and
q
8
I
through body grounds
E22
and
E36
.
Ground is also supplied
I
to terminal
q
3
of RH headlamp
I
through daytime light control unit terminals
q
9
and
q
14
I
through lighting switch terminals
q
6
and
q
5
I
through body grounds
E22
and
E36
.
With power and ground supplied, the high beam headlamps illuminate.
XENON HEADLAMP
For description regarding xenon headlamp, refer to EL-80.
AUTO LIGHT OPERATION
For auto light operation, refer to EL-79.
DAYTIME LIGHT OPERATION
With the engine running, the lighting switch in the OFF or 1ST position and parking brake released, power is
supplied
I
through daytime light control unit terminal
q
7
I
to terminal
q
1
of RH headlamp
I
through terminal
q
3
of RH headlamp
I
to daytime light control unit terminal
q
9
I
through daytime light control unit terminal
q
6
I
to terminal
q
1
of LH headlamp.
Ground is supplied to terminal
q
3
of LH headlamp.
I
through daytime light control unit terminals
q
10
and
q
16
I
through body grounds
E22
and
E36
.
Because the high beam headlamps are now wired in series, they operate at half illumination.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
HEADLAMP (FOR CANADA) — XENON TYPE —
Daytime Light System/System Description
(Cont’d)
EL-101
![](/vehicles/zatt/fitanyou/tushi/nery.png)
Operation (Daytime light system with xenon
headlamp)
After starting the engine with the lighting switch in the “OFF” or
“1ST” position, the headlamp high beam automatically turns on.
Lighting switch operations other than the above are the same as
conventional light systems.
Engine
With engine stopped
With engine running
Lighting switch
OFF
1ST
2ND
OFF
1ST
2ND
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
Headlamp
High beam
X
X
q
X
X
q q
X
q g
*
g
*
q g
*
g
*
q q
X
q
Low beam
X
X
X
X
X
X
q q q
X
X
X
X
X
X
q q q
Parking and tail lamp
X
X
X
q q q q q q
X
X
X
q q q q q q
License and instrument illumination lamp
X
X
X
q q q q q q
X
X
X
q q q q q q
q
: Lamp “ON”
X : Lamp “OFF”
g
: Lamp dims.
: Added functions
*: When starting the engine with the parking brake released, the daytime light will come ON.
When starting the engine with the parking brake pulled, the daytime light won’t come ON.
HEADLAMP (FOR CANADA) — XENON TYPE —
EL-102
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