Nissan Frontier. Instruction — part 779
HEADLAMP (LO) CIRCUIT
EXL-41
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Is the measurement value normal?
YES
>> GO TO 6
NO
>> Repair the harnesses or connectors.
6.
CHECK DAYTIME LIGHT RELAY 2 GROUND CIRCUIT
Check continuity between daytime light relay 2 harness connector and ground.
Does continuity exist?
YES
>> GO TO 7.
NO
>> Repair the harness or connector.
7.
CHECK DAYTIME LIGHT RELAY 2
Check daytime light relay 2. Refer to
EXL-42, "Component Inspection"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
NO
>> Replace daytime light relay 2.
8.
CHECK FRONT HEADLAMP (LO) GROUND CIRCUIT
Check continuity between the front headlamp harness connector ter-
minal 2 and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO (Except LH with DTRL)>> Repair the harness.
NO (LH with DTRL)>> GO TO 9
9.
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.
Does continuity exist?
YES
>> GO TO 10
NO
>> Repair the harness or connector.
10.
CHECK DAYTIME LIGHT RELAY 1 GROUND CIRCUIT
Check continuity between daytime light relay 1 harness connector and ground.
Daytime light relay 2
Ground
Continuity
Connector
Terminal
E104
3
No
Daytime light relay 2
Ground
Continuity
Connector
Terminal
E104
1
Yes
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-42
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP (LO) CIRCUIT
Does continuity exist?
YES
>> GO TO 11
NO
>> Repair the harness or connector.
11.
CHECK DAYTIME LIGHT RELAY 1
Check daytime light relay 1. Refer to
EXL-44, "Component Inspection"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
NO
>> Replace daytime light relay 1.
Component Inspection
INFOID:0000000009478470
1.
CHECK DAYTIME LIGHT RELAY 2
1. Turn ignition switch OFF.
2. Remove daytime light relay 2.
3. Check the continuity between daytime light relay 2 terminals under the following conditions.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace daytime light relay 2.
Daytime light relay 1
Ground
Continuity
Connector
Terminal
E103
4
Yes
Terminals
Condition
Continuity
3 and 5
12V direct current supply between terminals 1 and 2
Yes
No current supply
No
DAYTIME LIGHT RELAY CIRCUIT
EXL-43
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
DAYTIME LIGHT RELAY CIRCUIT
Description
INFOID:0000000009478471
The BCM sends a daytime light request to the IPDM E/R via the CAN communication lines. The power flows
backward through fuse 45 located in IPDM E/R to daytime light relay 1 and LH high beam lamp to IPDM E/R,
through the high beam fuses, through the RH high beam lamp and on to ground. The high beam lamps are
wired in series which causes them to illuminate at a reduced intensity.
Diagnosis Procedure
INFOID:0000000009478472
Regarding Wiring Diagram information, refer to
.
1.
CHECK DAYTIME LIGHT RELAY 1 FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not open.
Is the fuse open?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK IPDM E/R OUTPUT SIGNAL
1. Turn the ignition switch OFF.
2. Disconnect the daytime light relay 1 connector.
3. Turn the ignition switch ON.
4. Check the voltage between the daytime light relay 1 harness connector and ground.
Is battery voltage present?
YES
>> GO TO 3
NO
>> GO TO 5
3.
CHECK DAYTIME LIGHT RELAY 1 CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E122.
3. Check continuity between the IPDM E/R harness connector and the daytime light relay 1 harness connec-
tor.
4. Check continuity between the daytime light relay 1 harness connector and ground.
Is the measurement value normal?
Unit
Location
Fuse No.
Capacity
Daytime light relay 1
IPDM E/R
45
10A
(+)
(
−)
Voltage
Connector
Terminal
E103
2
Ground
Battery voltage
5
IPDM E/R
Daytime light relay 1
Continuity
Connector
Terminal
Connector
Terminal
E122
44
E103
1
Yes
Connector
Terminal
—
Continuity
E103
1
Ground
No
EXL-44
< DTC/CIRCUIT DIAGNOSIS >
DAYTIME LIGHT RELAY CIRCUIT
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK DAYTIME LIGHT RELAY 1
Check daytime light relay 1. Refer to
EXL-44, "Component Inspection"
.
Is the inspection result normal?
YES
>> Check headlamp (HI) circuit. If OK, replace IPDM E/R. Refer to
PCS-28, "Removal and Installa-
.
NO
>> Replace daytime light relay1.
5.
CHECK DAYTIME LIGHT RELAY CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E119.
3. Check continuity between the IPDM E/R harness connector and the daytime light relay 1 harness connec-
tor.
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.
Component Inspection
INFOID:0000000009478473
1.
CHECK DAYTIME LIGHT RELAY 1
1. Turn ignition switch OFF.
2. Remove daytime light relay 1.
3. Check the continuity between daytime light relay 1 terminals under the following conditions.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace daytime light relay 1
IPDM E/R
Daytime light relay 1
Continuity
Connector
Terminal
Connector
Terminal
E119
10
E103
2
Yes
5
Terminals
Condition
Continuity
3 and 5
12V direct current supply between terminals 1 and 2
Yes
No current supply
No
3 and 4
12V direct current supply between terminals 1 and 2
No
No current supply
Yes
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст