Infiniti EX35. Manual — part 756
EXL-68
< COMPONENT DIAGNOSIS >
[XENON TYPE]
HEADLAMP (HI) CIRCUIT
Does continuity exist?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
3.
CHECK HEADLAMP (HI) FUSE
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not fusing.
Is the fuse fusing?
YES
>> GO TO 4.
NO
>> Replace IPDM E/R.
4.
CHECK HEAD LAMP (HI) SHORT CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check continuity between the IPDM E/R harness connector terminal and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors. And then replace the fuse.
NO
>> Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
5.
CHECK HEAD LAMP (HI) GROUND OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connector.
3.
Check continuity between the front combination lamp harness connector and the ground.
Does continuity exist?
YES
>> Replace the headlamp (HI) bulb. (Bulb socket is abnormally.)
NO
>> Repair the harnesses or connectors.
IPDM E/R
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
RH
E8
89
E28
7
Existed
LH
90
E58
7
Unit
Location
Fuse No.
Capacity
Headlamp HI (RH) IPDM E/R
#55
10
A
Headlamp HI (LH)
IPDM E/R
#54
10 A
IPDM E/R
Ground
Continuity
Connector
Terminal
RH
E8
89
Not existed
LH
90
Front combination lamp
Ground
Continuity
Connector
Terminal
RH
E28
2
Existed
LH
E58
2
HEADLAMP (LO) CIRCUIT
EXL-69
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000003534174
Headlamp (LO) circuit is connected to HID control unit integrated in the headlamp. Headlamp (LO) circuit turns
xenon headlamp ON.
For the details of HID control unit and the xenon headlamp, refer to
.
Component Function Check
INFOID:0000000003534175
1.
CHECK HEADLAMP (LO) OPERATION
IPDM E/R AUTO ACTIVE TEST
1.
Activate IPDM E/R auto active test. Refer to
PCS-11, "Diagnosis Description"
.
2.
Check that the headlamp is turned ON.
CONSULT-III ACTIVE TEST
1.
Select “EXTERNAL LAMP” of IPDM E/R active test item.
2.
With operating the test items, check that the headlamp (LO) is turned ON.
Is the headlamp (LO) turned ON?
YES
>> Headlamp (LO) is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000003534176
1.
CHECK HEADLAMP (LO) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connector.
3.
Turn the ignition switch ON.
4.
Select “EXTERNAL LAMP” of IPDM E/R active test item.
5.
With operating the test items, check the voltage between the IPDM E/R harness connector and the
ground.
Is the measurement value normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK HEADLAMP (LO) OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check continuity between the IPDM E/R harness connector and the front combination lamp harness con-
nector.
Lo
: Headlamp (LO) ON
Off
: Headlamp (LO) OFF
Terminals
Test item
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Ground
EXTERNAL
LAMP
Connector
Terminal
RH
E8
83
Lo
Battery volt-
age
Off
0 V
LH
84
Lo
Battery volt-
age
Off
0 V
EXL-70
< COMPONENT DIAGNOSIS >
[XENON TYPE]
HEADLAMP (LO) CIRCUIT
Does continuity exist?
YES
>> GO TO 5.
NO
>> Repair the harnesses or connectors.
3.
CHECK HEADLAMP (LO) FUSE
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not fusing.
Is the fuse fusing?
YES
>> GO TO 4.
NO
>> Replace IPDM E/R.
4.
CHECK HEADLAMP (LO) SHORT CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check continuity between the IPDM E/R harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors. And then replace the fuse.
NO
>> Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
5.
CHECK HEADLAMP (LO) GROUND OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connector.
3.
Check continuity between the front combination lamp harness connector and the ground.
Does continuity exist?
YES
>> Perform the xenon headlamp diagnosis. Refer to
.
NO
>> Repair the harnesses or connectors.
IPDM E/R
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
RH
E8
83
E28
5
Existed
LH
84
E58
5
Unit
Lotion
Fuse No.
Capacity
Headlamp LO (RH)
IPDM E/R
#57
15 A
Headlamp LO (LH)
IPDM E/R
#56
15 A
IPDM E/R
Ground
Continuity
Connector
Terminal
RH
E8
83
Not existed
LH
84
Front combination lamp
Ground
Continuity
Connector
Terminal
RH
E28
3
Existed
LH
E58
3
XENON HEADLAMP
EXL-71
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
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XENON HEADLAMP
Description
INFOID:0000000003135335
OUTLINE
• The lamp light source is by the arch discharge by applying high voltage into the xenon gas-filled bulb instead
of the halogen bulb filament.
• Sight becomes more natural and brighter because the amount of light are gained adequately and the color of
light is sunshine-like white.
• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-
vice life.
ILLUMINATION PRINCIPLE
1.
Discharging starts in high voltage pulse between bulb elec-
trodes.
2.
Xenon gas is activated by current between electrodes. Pale light
is emitted.
3.
The luminous tube (bulb) temperature elevates. Evaporated
halide is activated by discharge. The color of light changes into
white.
NOTE:
• Brightness and the color of light may change slightly immediately
after the headlamp turned ON until the xenon bulb becomes sta-
ble. This is not malfunction.
• Illumination time lag may occur between right and left. This is not
malfunction.
PRECAUTIONS FOR TROUBLE DIAGNOSIS
Representative malfunction examples are; "Light does not turn ON", "Light blinks", and "Brightness is inade-
quate." The cause often be the xenon bulb. Such malfunctions, however, are occurred occasionally by HID
control unit malfunction or lamp case malfunction. Specify the malfunctioning part with diagnosis procedure.
WARNING:
• Never touch the harness, HID control unit, the inside and metal part of lamp when turning the head-
lamp ON or operating the light switch.
• Never work with wet hands.
CAUTION:
• Never perform HID control unit circuit diagnosis with a circuit tester or an equivalent.
• Temporarily install the headlamp on the vehicle. Connect the battery to the connector (vehicle side)
when checking ON/OFF status.
• Disconnect the battery negative terminal before disconnecting the lamp socket connector or the har-
ness connector.
• Check for fusing of the fusible link(s), open around connector, short, disconnection if the symptom
is caused by electric error.
NOTE:
• Turn the switch OFF once before turning ON, if the ON/OFF is inoperative.
• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-
vice life.
Diagnosis Procedure
INFOID:0000000003135336
1.
CHECK XENON BULB
Install the normal bulb to the applicable headlamp. Check that the xenon bulb is turned ON.
Is the headlamp turned ON?
YES
>> Replace the xenon bulb.
NO
>> GO TO 2.
2.
CHECK HID CONTROL UNIT
Install the normal HID control unit to the applicable headlamp. Check that the lamp is turned ON.
Is the headlamp turned ON?
JPLIA0421GB
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