Nissan Xterra. Manual - 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

D

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F

G

H

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A

B

EXL

N

O

P

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 

EXL-61, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009484916

Regarding Wiring Diagram information, refer to 

EXL-111, "Wiring Diagram"

.

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

>> Replace BCM. Refer to 

BCS-50, "Removal and Installa-

tion"

.

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 >

C

D

E

F

G

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B

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