Infiniti G20 (P11). Manual — part 315
Symptom
Possible cause
Repair order
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 unit
1. Check harness between headlamp battery saver con-
trol unit terminal 10 and smart entrance control unit
terminal 5 for open or short circuit.
2. Check harness between smart entrance control unit
and driver or passenger side door switch for open or
short circuit.
Check driver or passenger side door switch ground
circuit.
Check driver or passenger side door switch.
3. Check harness between headlamp battery saver con-
trol unit terminals 5 or 13 and lighting switch terminal
11 for open or short circuit.
Check harness between lighting switch terminal 12
and ground.
Check lighting switch.
4. Check headlamp battery saver control unit.
5. Check smart entrance control unit. (EL-246)
BATTERY SAVER CONTROL UNIT INSPECTION TABLE
NCEL0014S01
Terminal No.
Item
Condition
Voltage
(Approximate
value)
1
Ignition ON power supply
Ignition switch
OFF or ACC
Less than 1V
ON or START
Battery voltage
2
Headlamp RH relay
Ignition switch
(with lighting switch
1ST or 2ND)
OFF or ACC
More than 45 sec-
onds after ignition
switch is turned
OFF or ACC
Battery voltage
Within 45 seconds
after ignition switch
is turned OFF or
ACC
Less than 1V
ON or START
Less than 1V
Lighting switch
(with ignition switch
OFF)
OFF
Battery voltage
1ST or 2ND
Less than 1V
3
Ground
—
—
4
Ground
—
—
5
Tail lamp switch
Lighting switch
OFF
Battery voltage
1ST or 2ND
Less than 1V
6
Tail lamp relay
Ignition switch
(with lighting switch
1ST or 2ND)
OFF or ACC
More than 45 sec-
onds after ignition
switch is turned
OFF or ACC
Battery voltage
Within 45 seconds
after ignition switch
is turned OFF or
ACC
Less than 1V
ON or START
Less than 1V
Lighting switch
(with ignition switch
OFF)
OFF
Battery voltage
1ST or 2ND
Less than 1V
GI
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MT
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BT
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SC
IDX
HEADLAMP (FOR USA)
Trouble Diagnoses (Cont’d)
EL-37
Terminal No.
Item
Condition
Voltage
(Approximate
value)
7
Power supply
—
Battery voltage
8
Headlamp LH relay
Ignition switch
(with lighting switch
1ST or 2ND)
OFF or ACC
More than 45 sec-
onds after ignition
switch is turned
OFF or ACC
Battery voltage
Within 45 seconds
after ignition switch
is turned OFF or
ACC
Less than 1V
ON or START
Less than 1V
Lighting switch
(with ignition switch
OFF)
OFF
Battery voltage
1ST or 2ND
Less than 1V
9
Ground
—
—
10
RAP signal
Ignition switch
OFF or ACC
(After more than 45 seconds with ignition
switch turned OFF or ACC)
Less than 1V
ON or START
Battery voltage
11
Ground
—
—
13
Tail lamp switch
Lighting switch
OFF
Battery voltage
1ST or 2ND
Less than 1V
14
Tail lamp relay
Ignition switch
(with lighting switch
OFF)
OFF or ACC
More than 45 sec-
onds after ignition
switch is turned
OFF or ACC
Battery voltage
Within 45 seconds
after ignition switch
is turned OFF or
ACC
Less than 1V
ON or START
Less than 1V
Lighting switch
(with ignition switch
OFF)
OFF
Battery voltage
1ST or 2ND
Less than 1V
HEADLAMP (FOR USA)
Trouble Diagnoses (Cont’d)
EL-38
MEL282H
Bulb Replacement
NCEL0015
The headlamp is a semi-sealed beam type which uses a replace-
able halogen bulb. The bulb can be replaced from the engine com-
partment side without removing the headlamp body.
I
Grasp only the plastic base when handling the bulb. Never
touch the glass envelope.
1.
Disconnect the battery cable.
2.
Turn the bulb retaining ring counterclockwise until it is free from
the headlamp reflector, and then remove it.
3.
Disconnect the harness connector from the back side of the
bulb.
4.
Remove the headlamp bulb carefully. Do not shake or rotate
the bulb when removing it.
5.
Install in the reverse order of removal.
CAUTION:
Do not leave headlamp reflector without bulb for a long period
of time. Dust, moisture, smoke, etc. entering headlamp body
may affect the performance of the headlamp. Remove head-
lamp bulb from the headlamp reflector just before a replace-
ment bulb is installed.
Aiming Adjustment
NCEL0016
When performing headlamp aiming adjustment, use an aiming
machine, aiming wall screen or headlamp tester. Aimers should be
in good repair, calibrated and operated in accordance with respec-
tive operation manuals.
If any aimer is not available, aiming adjustment can be done as
follows:
For details, refer to the regulations in your own country.
1)
Keep all tires inflated to correct pressures.
2)
Place vehicle and tester on one and same flat surface.
3)
See that there is no-load in vehicle (coolant, engine oil filled up
to correct level and full fuel tank) other than the driver (or
equivalent weight placed in driver’s position).
GI
MA
EM
LC
EC
FE
CL
MT
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SU
BR
ST
RS
BT
HA
SC
IDX
HEADLAMP (FOR USA)
Bulb Replacement
EL-39
SEL973V
SEL974V
LOW BEAM
NCEL0016S02
1.
Turn headlamp low beam on.
2.
Use adjusting screws to perform aiming adjustment.
I
First tighten the adjusting screw all the way and then
make adjustment by loosening the screw.
SEL724W
If the vehicle front body has been repaired and/or the headlamp
assembly has been replaced, check aiming. Use the aiming chart
shown in the figure.
I
Basic illuminating area for adjustment should be within
the range shown at left. Adjust headlamps accordingly.
HEADLAMP (FOR USA)
Aiming Adjustment (Cont’d)
EL-40
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