2001 INFINITI QX4 headlamp

MEL769L
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HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Wiring Diagram Ð DTRL Ð (Cont'd)
EL-53

MEL770L
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Wiring Diagram Ð DTRL Ð (Cont'd)
EL-54

MEL771L
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Wiring Diagram Ð DTRL Ð (Cont'd)
EL-55

Trouble DiagnosesNBEL0193DAYTIME LIGHT CONTROL UNIT INSPECTION TABLENBEL0193S01
Terminal
No.Wire
colorItem ConditionVoltage
(Approximate values)
1 Y/B Alternator
When turning ignition switch to ªONº Less than 1V
When engine is running Battery voltage
When turning ignition switch to ªOFFº Less than 1V
2 Y/R Start signal
When turning ignition switch to ªSTº Battery voltage
When turning ignition switch to ªONº from ªSTº Less than 1V
When turning ignition switch to ªOFFº Less than 1V
3 G Power source
When turning ignition switch to ªONº Battery voltage
When turning ignition switch to ªSTº Battery voltage
When turning ignition switch to ªOFFº Less than 1V
4 R/L Power source
When turning ignition switch to ªONº Battery voltage
When turning ignition switch to ªOFFº Battery voltage
5 R/W Power source
When turning ignition switch to ªONº Battery voltage
When turning ignition switch to ªOFFº Battery voltage
6 R LH hi beam When lighting switch is turned to the 2ND position with
ªHI BEAMº positionBattery voltage
When releasing parking brake with engine running and
turning lighting switch to ªOFFº (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.Approx. half battery
voltage
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Trouble Diagnoses
EL-56

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 brake with engine running and
turning lighting switch to ªOFFº (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.Approx. half battery
voltage
9 PU RH hi beam
(ground)When lighting switch is turned to the 2ND position with
ªHI BEAMº positionLess than 1V
When releasing parking brake with engine running and
turning lighting switch to ªOFFº (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.Approx. half battery
voltage
10 GY LH hi beam
(ground)When lighting switch is turned to the 2ND position with
ªHI BEAMº positionLess than 1V
When releasing parking brake with engine running and
turning lighting switch to ªOFFº (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.Approx. half battery
voltage
13
14L/W
W/RLighting switch
(Hi beam)When turning lighting switch to ªHI BEAMº Battery voltage
When turning lighting switch to ªFLASH TO PASSº Battery voltage
16 B Ground Ð Ð
17 L/G Parking brake
switch
When parking brake is released Battery voltage
When parking brake is set Less than 1.5V
BATTERY SAVER CONTROL UNIT INSPECTION TABLENBEL0193S02Refer to ªHEADLAMP (FOR USA)º, EL-42.
Bulb ReplacementNBEL0194Refer to ªHEADLAMP (FOR USA)º (EL-43).
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HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Trouble Diagnoses (Cont'd)
EL-57

Aiming AdjustmentNBEL0195Refer to ªHEADLAMP (FOR USA)º (EL-44).
HEADLAMP (FOR CANADA) Ð DAYTIME LIGHT SYSTEM Ð
Aiming Adjustment
EL-58

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

Wiring Diagram Ð H/AIM ÐNBEL0197
MEL772L
HEADLAMP Ð HEADLAMP AIMING CONTROL Ð
Wiring Diagram Ð H/AIM Ð
EL-60