Infiniti G37 Coupe. Manual — part 661
EXL-64
< COMPONENT DIAGNOSIS >
[XENON TYPE]
HEADLAMP (HI) CIRCUIT
HEADLAMP (HI) CIRCUIT
Description
INFOID:0000000001604655
The high beam solenoid drives the mobile valve shade. And the mobile valve shade switches the high beam
and low beam of headlamp.
• When the headlamp high relay is turned ON, magnetic force is
applied to the high beam solenoid (1) by a current. The mobile
valve shade (2) is switched to the high beam position.
• When the headlamp high relay is turned OFF, the current stops.
The mobile valve shade returns to the low beam position automati-
cally.
Component Function Check
INFOID:0000000001604656
1.
CHECK HEADLAMP (HI) OPERATION
IPDM E/R AUTO ACTIVE TEST
1.
Start IPDM E/R auto active test. Refer to
PCS-11, "Diagnosis Description"
2.
Check that the headlamp switches to the high beam.
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 switches to the high beam.
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
Does the headlamp switch to the high beam?
YES
>> Headlamp (HI) circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001604657
1.
CHECK HEADLAMP (HI) 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.
JSLIA0129ZZ
Hi
: Headlamp switches to the high beam.
Off
: Headlamp OFF
HEADLAMP (HI) CIRCUIT
EXL-65
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Is the measurement value normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK HEADLAMP (HI) 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.
Does continuity exist?
YES
>> Replace the front combination lamp.
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 FRONT COMBINATION 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.)
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Ground
External
lamp
Connector
Terminal
RH
E8
89
Hi
Battery
voltage
LH
90
Off
0 V
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
EXL-66
< COMPONENT DIAGNOSIS >
[XENON TYPE]
HEADLAMP (LO) CIRCUIT
HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000001604658
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:0000000001604659
1.
CHECK HEADLAMP (LO) OPERATION
IPDM E/R AUTO ACTIVE TEST
1.
Start 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 is turned ON.
Is the headlamp turned ON?
YES
>> Headlamp (LO) is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001604660
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 ON
Off
: Headlamp OFF
Terminals
Test item
Voltage
(Approx.)
(+)
(
−
)
IPDM E/R
Ground
External
lamp
Connector
Terminal
RH
E8
83
Lo
Battery
voltage
LH
84
Off
0 V
IPDM E/R
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
HEADLAMP (LO) CIRCUIT
EXL-67
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
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 GROUND OPEN CIRCUIT
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.
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
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