Nissan Xterra. Manual - part 413

EXL-140

< WIRING DIAGRAM >

TRAILER TOW

ABLIA5768GB

TRAILER TOW

EXL-141

< WIRING DIAGRAM >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

ABLIA5769GB

EXL-142

< WIRING DIAGRAM >

TRAILER TOW

ABLIA5821GB

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-143

< SYMPTOM DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

SYMPTOM DIAGNOSIS

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009484940

CAUTION:

Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagno-

sis if any DTC is detected.

Symptom

Possible cause

Inspection item

Headlamp does not 
switch to the high beam.

One side

• Fuse
• Harness between IPDM E/R 

and the front combination lamp

• Front combination lamp
• IPDM E/R

Headlamp (HI) circuit
Refer to 

EXL-39, "Description"

.

Both sides

Symptom diagnosis
 "BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM"
Refer to 

EXL-147, "Diagnosis Procedure"

.

High beam indicator lamp is not turned ON.
(Headlamp switches to the high beam.)

• Combination meter
• BCM

• Combination meter. 

Data monitor "HI-BEAM IND"

• BCM (HEAD LAMP)

Active test "HEADLAMP"

Headlamp does not 
switch to the low beam.

One side

• Daytime light relay 2
• Harness between IPDM, day-

time light relay 2 and front com-
bination lamp LH.

• Front combination lamp (Low 

beam)

Headlamp (LO) circuit
Refer to 

EXL-42, "Description"

.

Both sides

• Combination switch (lighting 

and turn signal switch)

• Harness between the combina-

tion switch (lighting and turn sig-
nal switch) and BCM

• BCM

Combination switch (lighting and 
turn signal switch)
Refer to 

BCS-8

.

High beam request signal
• BCM
• IPDM E/R

IPDM E/R
Data monitor "HL HI REQ"

IPDM E/R

—

Headlamp does not turn 
ON.

One side

• Fuse
• Bulb
• Harness between IPDM E/R 

and the front combination lamp

• Front combination lamp
• IPDM E/R

Headlamp (LO) circuit
Refer to 

EXL-42, "Description"

.

Both sides

Symptom diagnosis
"BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON"
Refer to 

EXL-149, "Diagnosis Procedure"

.

Headlamp does not turn 
OFF.

When the ignition 
switch is turned ON

• BCM
• Combination switch (lighting 

and turn signal switch)

Combination switch (lighting and 
turn signal switch)
Refer to 

BCS-8

.