Nissan Frontier. Instruction — part 780
FRONT FOG LAMP CIRCUIT
EXL-45
< DTC/CIRCUIT DIAGNOSIS >
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FRONT FOG LAMP CIRCUIT
Description
INFOID:0000000009478474
The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on
inputs from the BCM via the CAN communication lines. When the front fog lamp relay is energized, power
flows from the front fog lamp relay in the IPDM E/R to the front fog lamps.
Component Function Check
INFOID:0000000009478475
1.
CHECK FRONT FOG LAMP OPERATION
WITHOUT CONSULT
1. Activate IPDM E/R auto active test. Refer to
PCS-9, "Diagnosis Description"
2. Check that the front fog lamp is turned ON.
WITH CONSULT
1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2. With operating the test items, Check that the front fog lamp is turned ON.
Is the front fog lamp turned ON?
YES
>> Front fog lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009478476
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT FOG LAMP FUSE
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 FRONT FOG LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front fog lamp connector.
3. Turn the ignition switch ON.
4. Turn the front fog lamps ON.
5. Check the voltage between the fog lamp connector and ground.
Is battery voltage present?
YES
>> GO TO 4
NO
>> GO TO 3
FOG
: Front fog lamp ON
OFF
: Front fog lamp OFF
Unit
Location
Fuse No.
Capacity
Front fog lamp
IPDM E/R
56
20A
(+)
(
−)
Voltage
Connector
Terminal
LH
E101
1
Ground
Battery voltage
RH
E102
1
ALLIA0627GB
EXL-46
< DTC/CIRCUIT DIAGNOSIS >
FRONT FOG LAMP CIRCUIT
3.
CHECK FRONT FOG LAMP OPEN CIRCUIT
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 fog lamp 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 FOG LAMP GROUND CIRCUIT
1. Disconnect the front fog lamp connector.
2. Check continuity between the front fog lamp harness connector
terminal and ground.
Does continuity exist?
YES
>> Inspect the fog lamp bulb.
NO
>> Repair the harness.
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
50
E101
1
Yes
RH
51
E102
1
ALLIA0628GB
Connector
Terminal
—
Continuity
LH
E101
2
Ground
Yes
RH
E102
2
ALLIA0629GB
PARKING LAMP CIRCUIT
EXL-47
< DTC/CIRCUIT DIAGNOSIS >
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PARKING LAMP CIRCUIT
Description
INFOID:0000000009478477
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 36 and 37, located in the IPDM E/R. Power then flows to the front and rear combination lamps, license
plate lamps.
Component Function Check
INFOID:0000000009478478
1.
CHECK PARKING LAMP OPERATION
WITHOUT CONSULT
1. Activate IPDM E/R auto active test. Refer to
PCS-9, "Diagnosis Description"
2. Check that the parking lamp is turned ON.
WITH CONSULT
1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2. With operating the test items, check that the parking lamp is turned ON.
Is the parking lamp turned ON?
YES
>> Parking lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009478479
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 open.
Is the fuse open?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connectors, front side marker lamp connectors, rear combination
lamp connectors and license plate lamp connectors.
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 connector and ground.
TAIL
: Parking lamp ON
OFF
: Parking lamp OFF
Unit
Location
Fuse No.
Capacity
Parking lamps
IPDM E/R
36
10A
37
10A
(+)
(
−)
Voltage
Connector
Terminal
LH
E27
5
Ground
Battery voltage
RH
E111
EXL-48
< DTC/CIRCUIT DIAGNOSIS >
PARKING LAMP CIRCUIT
6. With the parking lamps ON, check voltage between the front side marker lamp connector and ground.
7. With the parking lamps ON, check voltage between the rear combination lamp connector and ground.
8. With the parking lamps ON, check voltage between the license plate lamp connector and ground
Are voltage readings as specified?
YES
>> GO TO 4
NO
>> GO TO 3
3.
CHECK PARKING, LICENSE PLATE AND TAIL LAMP CIRCUIT (OPEN)
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E121, E123 and E124.
3. Check continuity between the IPDM E/R harness connector and the front combination lamp harness con-
nector.
4. Check continuity between the IPDM E/R harness connector and the front side marker lamp harness con-
nector.
5. Check continuity between the IPDM E/R harness connector and the rear combination lamp harness con-
nector.
6. Check continuity between the IPDM E/R harness connector and license plate lamp connector.
(+)
(
−)
Voltage
Connector
Terminal
LH
E17
7
Ground
Battery voltage
RH
E108
(+)
(
−)
Voltage
Connector
Terminal
LH
C201
3
Ground
Battery voltage
RH
C202
(+)
(
−)
Voltage
Connector
Terminal
LH
C203
1
Ground
Battery voltage
RH
C204
Connector
Terminal
Connector
Terminal
Continuity
LH
E121
28
E27
5
Yes
RH
E123
49
E111
Connector
Terminal
Connector
Terminal
Continuity
LH
E121
28
E17
7
Yes
RH
E123
49
E108
IPDM E/R
Rear combination lamp
Continuity
Connector
Terminal
Connector
Terminal
LH
E124
57
C201
3
Yes
RH
C202
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