Nissan Xterra. Instruction — part 393
EXL-60
< DTC/CIRCUIT DIAGNOSIS >
PARKING LAMP CIRCUIT
Are continuity results as specified?
YES
>> Replace IPDM E/R. Refer to
PCS-27, "Removal and Installation"
NO
>> Repair the harnesses or connectors.
4.
CHECK PARKING, LICENSE AND TAIL LAMP GROUND CIRCUITS
1. Check continuity between the front parking lamp harness connectors and ground.
2. Check continuity between the front side marker lamp harness connectors and ground.
3. Check continuity between the rear combination lamp harness connectors 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
E124
57
C12
1
Yes
Connector
Terminal
—
Continuity
LH
E27
6
Ground
Yes
RH
E111
Connector
Terminal
—
Continuity
LH
E17
8
Ground
Yes
RH
E108
Connector
Terminal
—
Continuity
LH
B35
5
Ground
Yes
RH
B105
Connector
Terminal
—
Continuity
C12
2
Ground
Yes
TURN SIGNAL LAMP CIRCUIT
EXL-61
< DTC/CIRCUIT DIAGNOSIS >
C
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F
G
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A
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EXL
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TURN SIGNAL LAMP CIRCUIT
Description
INFOID:0000000009484914
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:0000000009484915
1.
CHECK TURN SIGNAL LAMP
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:0000000009484916
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 connectors 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
4
Ground
E111
RH
PKID0926E
EXL-62
< DTC/CIRCUIT DIAGNOSIS >
TURN SIGNAL LAMP CIRCUIT
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 M20 and
ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
BCS-50, "Removal and Installa-
.
5.
CHECK TURN SIGNAL LAMP GROUND CIRCUIT
1. Check continuity between the front combination lamp harness connectors and ground.
(+)
(
−)
Voltage
Connector
Terminal
B35
LH
4
Ground
B105
RH
PKID0926E
BCM
Front combination lamp
Continuity
Connector
Terminal
Connector
Terminal
Front LH
M20
60
E27
4
Yes
Front RH
61
E111
BCM
Rear combination lamp
Continuity
Connector
Terminal
Connector
Terminal
Rear LH
M20
60
B35
4
Yes
Rear RH
61
B105
4
Connector
Terminal
—
Continuity
LH
M20
60
Ground
No
RH
61
ALLIA0404GB
TURN SIGNAL LAMP CIRCUIT
EXL-63
< DTC/CIRCUIT DIAGNOSIS >
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EXL
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2. Check continuity between the rear combination lamp harness
connectors and ground.
Are continuity results as specified?
YES
>> Replace the malfunctioning lamp.
NO
>> Repair the harnesses or connectors.
Connector
Terminal
—
Continuity
Front LH
E27
6
Ground
Yes
Front RH
E111
Connector
Terminal
—
Continuity
Rear LH
B35
5
Ground
Yes
Rear RH
B105
ALLIA0641GB
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