Nissan Frontier. Manual — part 781
PARKING LAMP CIRCUIT
EXL-49
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Are continuity results as specified?
YES
>> Replace IPDM E/R. Refer to
PCS-28, "Removal and Installation of IPDM E/R"
.
NO
>> Repair the harnesses or connectors.
4.
CHECK PARKING, LICENSE AND TAIL LAMP GROUND CIRCUITS
1. Check continuity between the front combination lamp harness connector and ground.
2. Check continuity between the front side marker lamp harness connector and ground.
3. Check continuity between the rear combination lamp harness connector and ground.
4. Check continuity between the license plate lamp harness connector and ground.
Are continuity results as specified?
YES
>> Inspect the parking lamp bulb.
NO
>> Repair the harness.
IPDM E/R
License plate lamp
Continuity
Connector
Terminal
Connector
Terminal
LH
E124
57
C203
1
Yes
RH
C204
Connector
Terminal
—
Continuity
LH
E27
4
Ground
Yes
RH
E111
Connector
Terminal
—
Continuity
LH
E17
8
Ground
Yes
RH
E108
Connector
Terminal
—
Continuity
LH
C201
2
Ground
Yes
RH
C202
Connector
Terminal
—
Continuity
LH
C203
2
Ground
Yes
RH
C204
EXL-50
< DTC/CIRCUIT DIAGNOSIS >
TURN SIGNAL LAMP CIRCUIT
TURN SIGNAL LAMP CIRCUIT
Description
INFOID:0000000009478480
The BCM monitors inputs from the combination switch (lighting and turn signal switch) to determine when to
activate the turn signals. The BCM outputs voltage direction to the left and right turn signals during turn signal
operation or both during hazard warning operation. The BCM sends a turn signal indicator request to the com-
bination meter via the CAN communication lines.
The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is
open.
NOTE:
Turn signal lamp blinks at normal speed when using the hazard warning lamp.
Component Function Check
INFOID:0000000009478481
1.
CHECK TURN SIGNAL LAMP
WITH CONSULT
1. Select "FLASHER" of BCM (FLASHER) active test item.
2. With operating the test items, check that the turn signal lamp blinks.
Does the turn signal lamp blink?
YES
>> Turn signal lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009478482
Regarding Wiring Diagram information, refer to
1.
CHECK TURN SIGNAL 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 2
NO
>> Replace the bulb.
2.
CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector and the rear combination lamp connector.
3. Turn the ignition switch ON.
4. With turn signal switch operating, check the voltage between the front combination lamp harness connec-
tor and ground.
LH
: Turn signal lamp LH blinking
RH
: Turn signal lamp RH blinking
OFF
: The turn signal lamp OFF
(+)
(
−)
Voltage
Connector
Terminal
E27
LH
6
Ground
E111
RH
PKID0926E
TURN SIGNAL LAMP CIRCUIT
EXL-51
< DTC/CIRCUIT DIAGNOSIS >
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F
G
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A
B
EXL
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5. With turn signal switch operating, check the voltage between the rear combination lamp harness connec-
tor and ground.
Is voltage reading as specified?
YES
>> GO TO 5
NO
>> GO TO 3
3.
CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect BCM connector M20.
3. Check continuity between the BCM harness connector and the front combination lamps harness connec-
tor.
4. Check continuity between the BCM harness connector and the rear combination lamp harness connector.
Are continuity results as specified?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between the BCM harness connector and ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Replace BCM. Refer to
BCS-49, "Removal and Installa-
.
5.
CHECK TURN SIGNAL LAMP GROUND CIRCUIT
1. Check continuity between the front combination lamp harness connector and ground.
(+)
(
−)
Voltage
Connector
Terminal
C207
LH
4
Ground
C208
RH
PKID0926E
BCM
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
Front LH
M20
60
E27
6
Yes
Front RH
61
E111
BCM
Rear combination lamp
Continuity
Connector
Terminal
Connector
Terminal
Rear LH
M20
60
C207
4
Yes
Rear RH
61
C208
4
Connector
Terminal
—
Continuity
LH
M20
60
Ground
No
RH
61
ALLIA0404GB
EXL-52
< DTC/CIRCUIT DIAGNOSIS >
TURN SIGNAL LAMP CIRCUIT
2. Check continuity between the rear combination lamp harness connector and ground.
Are continuity results as specified?
YES
>> Replace the malfunctioning lamp.
NO
>> Repair the harnesses or connectors.
Connector
Terminal
—
Continuity
Front LH
E27
4
Ground
Yes
Front RH
E111
Connector
Terminal
—
Continuity
Rear LH
C207
5
Ground
Yes
Rear RH
C208
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