Nissan Versa Sedan. Instruction — part 420
HEADLAMP (LO) CIRCUIT
EXL-81
< DTC/CIRCUIT DIAGNOSIS >
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HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000009269644
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.
(Without daytime light system) power then flows to the front combination lamp LH and RH low beams.
(With daytime light system) power then flows to the front combination lamp LH low beam and the daytime light
relay 2 which becomes energized and then power is sent to the front combination lamp RH low beam.
Component Function Check
INFOID:0000000009269645
1.
CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to
PCS-9, "Diagnosis Description"
(with Intelligent Key) or
2. Check that the headlamp is turned ON.
CONSULT
1. Select EXTERNAL LAMPS of IPDM E/R active test item.
2. While 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:0000000009269646
Regarding Wiring Diagram information, refer to
.
1.
CHECK HEADLAMP (LO) FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not blown.
Is the fuse blown?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK LOW BEAM BULB
Check the applicable low beam bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES
>> GO TO 3.
NO
>> Replace the bulb.
3.
CHECK HEADLAMP (LO) OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector E25 or E26.
3. Turn the ignition switch ON.
4. Turn the low beam headlamps ON.
LO
: Headlamp ON
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp LO (LH) IPDM E/R
41
15A
Headlamp LO (RH)
IPDM E/R
40
15A
EXL-82
< DTC/CIRCUIT DIAGNOSIS >
HEADLAMP (LO) CIRCUIT
5. With the low beam headlamps ON, check the voltage between the combination lamp connector and
ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 4 (without daytime light system).
>> GO TO 5 (with daytime light system).
4.
CHECK HEADLAMP (LO) CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E44.
3. Check continuity between the IPDM E/R harness connector E44 and the front combination lamp harness
connectors E25 and E26.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation"
(with Intelligent Key) or
(without Intelligent Key).
NO
>> Repair or replace the harness or connector.
5.
CHECK DAYTIME LIGHT RELAY 2 TO FRONT COMBINATION LAMP RH CIRCUIT FOR OPEN
1. Disconnect daytime light relay 2 connector E38.
2. Check continuity between the daytime light relay 2 harness connector E38 and the front combination lamp
LH harness connector E25.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace the harness or connector.
6.
CHECK DAYTIME LIGHT RELAY 2 VOLTAGE CIRCUIT
1. With the low beam headlamps ON, check the voltage between the daytime light relay 2 connector E38
and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
CHECK DAYTIME LIGHT RELAY 2 GROUND CIRCUIT
Check continuity between the daytime light relay 2 harness connector E38 and ground.
(+)
(
−)
Voltage
Connector
Terminal
LH
E25
3
Ground
Battery voltage
RH
E26
3
Connector
Terminal
Connector
Terminal
Continuity
LH
E44
14
E25
3
Yes
RH
16
E26
3
Connector
Terminal
Connector
Terminal
Continuity
E38
3
E25
3
Yes
(+)
(
−)
Voltage
Connector
Terminal
E38
2
Ground
Battery voltage
5
HEADLAMP (LO) CIRCUIT
EXL-83
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES
>> Replace daytime light relay 2.
NO
>> Repair or replace the harness or connector.
8.
CHECK IPDM E/R TO DAYTIME LIGHT RELAY 2 CIRCUIT FOR OPEN
1. Disconnect IPDM E/R connector E44.
2. Check continuity between the daytime light relay 2 harness connector E38 and the IPDM E/R connector
E44.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation"
(with Intelligent Key) or
(without Intelligent Key).
NO
>> Repair or replace the harness or connector.
9.
CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT
Check continuity between the front combination lamp harness connector and ground.
Is the inspection result normal?
YES
>> Replace malfunctioning lamp.
NO
>> Repair or replace the harness or connector (without daytime light system).
>> GO TO 10 (with daytime light system).
10.
CHECK FRONT COMBINATION LAMP LH TO DAYTIME LIGHT RELAY 1 GROUND CIRCUIT
1. Disconnect daytime light relay 1 connector E37.
2. Check continuity between the daytime light relay 1 harness connector E37 and the front combination lamp
LH harness connector E25.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace the harness or connector.
11.
CHECK DAYTIME LIGHT RELAY 1 GROUND CIRCUIT
Check continuity between the daytime light relay 1 harness connector E37 and ground.
Is the inspection result normal?
YES
>> Replace daytime light relay 1.
NO
>> Repair or replace the harness or connector.
Connector
Terminal
—
Continuity
E38
1
Ground
Yes
Connector
Terminal
Connector
Terminal
Continuity
E38
2
E44
14
Yes
5
Connector
Terminal
—
Continuity
LH
E25
2
Ground
Yes
RH
E26
2
Connector
Terminal
Connector
Terminal
Continuity
E37
3
E25
2
Yes
Connector
Terminal
—
Continuity
E37
4
Ground
Yes
EXL-84
< DTC/CIRCUIT DIAGNOSIS >
PARKING LAMP CIRCUIT
PARKING LAMP CIRCUIT
Description
INFOID:0000000009269647
The IPDM E/R (intelligent power distribution module engine room) controls the tail lamp relay based on inputs
from the BCM via the CAN communication lines. When the tail lamp relay is energized, power flows through
fuse 37, located in the IPDM E/R. Power then flows through the tail lamp relay to the front and rear combina-
tion lamps, license plate lamps.
Component Function Check
INFOID:0000000009269648
1.
CHECK PARKING LAMP OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to
PCS-9, "Diagnosis Description"
(with Intelligent Key) or
(without Intelligent Key).
2. Check that the parking lamps are turned ON.
CONSULT
1. Select EXTERNAL LAMPS of IPDM E/R active test item.
2. While operating the test items, check that the parking lamps are turned ON.
Is the parking lamp turned ON?
YES
>> Parking lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009269649
Regarding Wiring Diagram information, refer to
1.
CHECK PARKING LAMP FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not blown.
Is the fuse blown?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK PARKING LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES
>> GO TO 3.
NO
>> Replace the bulb.
3.
CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector, rear combination lamp connector and license plate
lamp connector.
3. Turn the ignition switch ON.
4. Turn the parking lamps ON.
5. With the parking lamps ON, check voltage between the front combination lamp connectors and ground.
TAIL
: Parking lamp ON
OFF
: Parking lamp OFF
Unit
Location
Fuse No.
Capacity
Parking lamps
IPDM E/R
37
10A
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