Nissan Leaf. Instruction — part 622
HEADLAMP (LO) CIRCUIT
EXL-89
< DTC/CIRCUIT DIAGNOSIS >
[LED HEADLAMP]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
HEADLAMP (LO) CIRCUIT
Component Function Check
INFOID:0000000010121345
1.
CHECK HEADLAMP (LO) OPERATION
CONSULT ACTIVE TEST
1. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.
2. While operating the test items, check that the headlamp (LO) is turned ON.
Is the inspection result normal?
YES
>> Headlamp (LO) circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010121346
Regarding Wiring Diagram information. Refer to
1.
CHECK HEADLAMP (LO) OUTPUT VOLTAGE
CONSULT ACTIVE TEST
1. Turn power switch OFF.
2. Disconnect front combination lamp connector.
3. Turn power switch ON.
4. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.
5. While operating the test items, check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK HEADLAMP (LO) OPEN CIRCUIT
1. Turn power switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and front combination lamp harness connector.
Is the inspection result normal?
YES
>> Perform the LED headlamp diagnosis. Refer to
.
NO
>> Repair or replace harness.
Lo
: Headlamp (LO) ON
Off
: Headlamp (LO) OFF
(+)
(
−)
Test item
Voltage
(Approx.)
IPDM E/R
Connector
Terminal
RH
E15
52
Ground
EXTERNAL
LAMPS
Lo
Battery voltage
Off
0 V
LH
51
Lo
Battery voltage
Off
0 V
IPDM E/R
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
RH
E15
52
E86
2
Yes
LH
51
E85
EXL-90
< DTC/CIRCUIT DIAGNOSIS >
[LED HEADLAMP]
HEADLAMP (LO) CIRCUIT
3.
CHECK HEADLAMP (LO) FUSE
1. Turn power switch OFF.
2. Check that the following fuses are not blown:
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
NO
>> GO TO 4.
4.
CHECK HEADLAMP (LO) SHORT CIRCUIT-1
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace the blown fuse after repairing the affected circuit.
5.
CHECK HEADLAMP (LO) SHORT CIRCUIT-2
CONSULT ACTIVE TEST
1. Replace fuse.
2. Connect IPDM E/R connector.
3. Turn power switch ON.
4. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.
5. Check that fuse is not blown when Lo button is operated.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
6.
CHECK HEADLAMP (LO) SHORT CIRCUIT-3
1. Turn power switch OFF.
2. Connect front combination lamp connector.
3. Check that headlamp turns ON when lighting switch is in the 2ND position.
Is the inspection result normal?
YES
>> Refer to
GI-53, "Intermittent Incident"
.
NO
>> Replace LED headlamp control module. Refer to
EXL-130, "Removal and Installation"
Unit
Location
Fuse No.
Capacity
Headlamp LO (RH)
IPDM E/R
54
15 A
Headlamp LO (LH)
53
IPDM E/R
Ground
Continuity
Connector
Terminal
RH
E15
52
No
LH
51
DAYTIME RUNNING LIGHT RELAY CIRCUIT
EXL-91
< DTC/CIRCUIT DIAGNOSIS >
[LED HEADLAMP]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
DAYTIME RUNNING LIGHT RELAY CIRCUIT
Component Function Check
INFOID:0000000010121347
1.
CHECK DAYTIME RUNNING LIGHT OPERATION
CONSULT ACTIVE TEST
1. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.
2. While operating the test items, check that daytime running light operation.
Is the inspection result normal?
YES
>> Daytime running light relay circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010121348
Regarding Wiring Diagram information. Refer to
1.
CHECK DAYTIME RUNNING LIGHT RELAY FUSE
1. Turn power switch OFF.
2. Check that the following fuse is not blown:
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK DAYTIME RUNNING LIGHT RELAY POWER SUPPLY
1. Remove daytime running light relay.
2. Check voltage between daytime running light relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK DAYTIME RUNNING LIGHT RELAY
Check daytime running light relay. Refer to
EXL-92, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace daytime running light relay.
4.
CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL OUTPUT
CONSULT ACTIVE TEST
1. Install daytime running light relay.
2. Turn power switch ON.
On
: EXTERNAL LAMPS Hi
Off
: EXTERNAL LAMPS Off
Unit
Fuse No.
Capacity
Daytime running light relay
37
10 A
(+)
(
−)
Voltage
(Approx.)
Daytime running light relay
Connector
Terminal
E84
1
Ground
Battery voltage
5
EXL-92
< DTC/CIRCUIT DIAGNOSIS >
[LED HEADLAMP]
DAYTIME RUNNING LIGHT RELAY CIRCUIT
3. Select “EXTERNAL LAMPS” in “Active Test” of “IPDM E/R”.
4. While operating the test item, check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Daytime running light relay circuit is OK.
NO-1 (Fixed at 0 V)>>GO TO 5.
NO-2 (Fixed at battery voltage) >>Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
.
5.
CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL OPEN CIRCUIT
1. Turn power switch OFF.
2. Remove daytime running light relay.
3. Disconnect IPDM E/R harness connector.
4. Check continuity between IPDM E/R harness connector and daytime running light relay harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK DAYTIME RUNNING LIGHT RELAY CONTROL SIGNAL SHORT CIRCUIT
Check continuity between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
NO
>> Repair or replace harness.
Component Inspection
INFOID:0000000010121349
1.
CHECK DAYTIME RUNNING LIGHT RELAY
1. Turn the power switch OFF.
2. Remove daytime running light relay.
3. Apply battery voltage to daytime running light relay - between terminals 1 and 2.
4. Check continuity between daytime running light relay terminals.
Is the inspection result normal?
YES
>> Daytime running light relay is normal.
(+)
(
−)
Test item
Voltage
(Approx.)
IPDM E/R
Connector
Terminal
E13
28
Ground
External Lamps
On
0 V
Off
Battery voltage
IPDM E/R
Daytime running light relay
Continuity
Connector
Terminal
Connector
Terminal
E13
28
E84
2
Yes
IPDM E/R
Ground
Continuity
Connector
Terminal
E13
28
No
Daytime running light relay
Condition
Continuity
Terminal
E84
5
3
Voltage
Apply
Yes
Not Apply
No
4
Apply
No
Not Apply
Yes
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