Nissan Frontier. Instruction — part 778
HEADLAMP (HI) CIRCUIT
EXL-37
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector E7 (with
DTRL), E11 (without DTRL) or E107.
3. Turn the ignition switch ON.
4. Turn the high beam headlamps ON.
5. With the high beam headlamps ON, check the voltage between
the front combination lamp connector and ground.
Is battery voltage present?
YES
>> GO TO 4
NO
>> GO TO 3
3.
CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E123.
3. Check continuity between the IPDM E/R harness connector (A)
and the front headlamp harness connector (B).
Does continuity exist?
YES
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT HEADLAMP (HI) GROUND CIRCUIT
Check continuity between the front headlamp harness connector ter-
minal and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO (Except LH with DTRL)>> Repair the harness.
NO (LH with DTRL)>> GO TO 5.
5.
CHECK CONTINUITY BETWEEN FRONT HEADLAMP LH (HI) AND DAYTIME LIGHT RELAY 1
1. Disconnect daytime light relay 1 connector.
2. Check continuity between front headlamp LH harness connector and daytime light relay 1 harness con-
nector.
(+)
(
−)
Voltage
Connector
Terminal
LH
E7 (with DTRL)
1
Ground
Battery voltage
E11 (without DTRL)
RH
E107
WKIA4989E
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
55
E7 (with DTRL)
1
Yes
E11(without DTRL)
RH
56
E107
ALLIA0623GB
Connector
Terminal
—
Continuity
LH
E7 (with DTRL)
2
Ground
Yes
E11 (without DTRL)
RH
E107
ALLIA0624GB
Front headlamp LH
Daytime light relay 1
Continuity
Connector
Terminal
Connector
Terminal
E7
2
E103
3
Yes
EXL-38
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP (HI) CIRCUIT
Does continuity exist?
YES
>> GO TO 6.
NO
>> Repair the harness or connector.
6.
CHECK DAYTIME LIGHT RELAY 1 GROUND CIRCUIT
Check continuity between daytime light relay 1 harness connector and ground.
Does continuity exist?
YES
>> GO TO 7.
NO
>> Repair the harness or connector.
7.
CHECK DAYTIME LIGHT RELAY 1
Check daytime light relay 1. Refer to
EXL-44, "Component Inspection"
Is the inspection result normal?
YES
>> Inspect the headlamp bulb.
NO
>> Replace daytime light relay 1.
Daytime light relay 1
Ground
Continuity
Connector
Terminal
E103
4
Yes
HEADLAMP (LO) CIRCUIT
EXL-39
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000009478467
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on
inputs from the BCM via the CAN communication lines. When the headlamp low relay is energized, power
flows through fuses 40 and 41, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp low beam.
Component Function Check
INFOID:0000000009478468
1.
CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to
PCS-9, "Diagnosis Description"
.
2. Check that the headlamp is turned ON.
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
WITH CONSULT
1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2. With the test items operating, check that the headlamp is turned ON.
Is the headlamp turned ON?
YES
>> Headlamp (LO) is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009478469
Regarding Wiring Diagram information, refer to
(with DTRL).
1.
CHECK HEADLAMP (LO) FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK HEADLAMP (LO) OUTPUT VOLTAGE
LO
: Headlamp ON
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp LO (LH)
IPDM E/R
40
15A
Headlamp LO (RH)
IPDM E/R
41
15A
EXL-40
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP (LO) CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the front headlamp connector.
3. Turn the ignition switch ON.
4. Turn the low beam headlamps ON.
5. With the low beam headlamps ON, check the voltage between
the headlamp connector and ground.
Is battery voltage present?
YES
>> GO TO 8
NO (Except LH with DTRL)>>CHECK HEADLAMP (LO) CIRCUIT FOR OPEN GO TO 3
NO (LH with DTRL)>>CHECK HEADLAMP (LO) CIRCUIT FOR OPEN (LH WITH DTRL) GO TO 4
3.
CHECK HEADLAMP (LO) CIRCUIT FOR OPEN (EXCEPT LH WITH DTRL)
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E123.
3. Check continuity between the IPDM E/R harness connector (A)
and the front headlamp harness connector (B).
Does continuity exist?
YES
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
NO
>> Repair the harnesses or connectors.
4.
CHECK HEADLAMP (LO) CIRCUIT FOR OPEN (LH WITH DTRL)
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E123 and daytime light relay 2 connector.
3. Check continuity between the IPDM E/R harness connector and the daytime light relay 2 harness connec-
tor.
Does continuity exist?
YES
>> GO TO 5
NO
>> Repair the harnesses or connectors.
5.
CHECK DAYTIME LIGHT RELAY 2 CIRCUIT (LH WITH DTRL)
1. Check continuity between the daytime light relay 2 harness connector and the front headlamp LH harness
connector.
2. Check continuity between the daytime light relay 2 harness connector and ground.
(+)
(
−)
Voltage
Connector
Terminal
LH
E7 (with DTRL)
3
Ground
Battery voltage
E11 (without DTRL)
RH
E107
ALLIA0625GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
52
E11
3
Yes
RH
54
E107
ALLIA0626GB
IPDM E/R
Daytime light relay 2
Continuity
Connector
Terminal
Connector
Terminal
E123
52
E104
5
Yes
2
Daytime light relay 2
Front headlamp LH
Continuity
Connector
Terminal
Connector
Terminal
E104
3
E7
3
Yes
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст