Nissan Sentra. Manual - part 476

EXTERIOR LIGHTING SYSTEM SYMPTOMS

EXL-107

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009757530

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

• Bulb
• Fuse
• Harness between IPDM E/R 

and the front combination lamp

• IPDM E/R

Headlamp (HI) circuit
Refer to 

EXL-88

.

Both sides

—

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

EXL-110

.

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

• Bulb
• Fuse
• Harness between IPDM E/R 

and the front combination lamp

• IPDM E/R

Headlamp (HI) circuit
Refer to 

EXL-88

.

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 

EXL-12

  (with Intelligent 

Key system) or 

EXL-15

  (without In-

telligent Key system).

High beam request signal
• BCM
• IPDM E/R

IPDM E/R
Data monitor "HL HI REQ"

Headlamp does not turn 
ON.

One side

• Fuse
• Bulb
• Harness between IPDM E/R 

and the front combination lamp

• Harness between the front com-

bination lamp and ground 

• IPDM E/R

Headlamp (LO) circuit
Refer to 

EXL-90

Both sides

—

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

EXL-112

.

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 

EXL-12

  (with Intelligent 

Key system) or 

EXL-15

  (without In-

telligent Key system).

The ignition switch is 
turned OFF (After acti-
vating the battery sav-
er).

IPDM E/R

—

EXL-108

< SYMPTOM DIAGNOSIS >

EXTERIOR LIGHTING SYSTEM SYMPTOMS

Headlamp is not turned ON/OFF with the lighting 
switch AUTO.

• Combination switch (lighting 

and turn signal switch)

• Harness between the combina-

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

• BCM
• IPDM E/R

Combination switch (lighting and 
turn signal switch)
Refer to 

EXL-12

  (with Intelligent 

Key system) or 

EXL-15

  (without In-

telligent Key system).

• Optical sensor
• Harness between the optical 

sensor and BCM

• BCM

Optical sensor
Refer to 

EXL-103

.

Daytime light system does not activate.

—

Symptom diagnosis
 "DAYTIME LIGHT SYSTEM INOP-
ERATIVE"
Refer to 

EXL-111

.

Front fog lamp is not 
turned ON.

One side

• Front fog lamp bulb
• Harness between IPDM E/R 

and the front fog lamp

• Harness between the front fog 

lamp and ground 

• IPDM E/R

Front fog lamp circuit
Refer to 

EXL-94

.

Both side

—

Symptom diagnosis
"BOTH SIDE FRONT FOG LAMPS 
ARE NOT TURNED ON"
Refer to 

EXL-114

.

Parking lamp is not turned 
ON.

One side

• Fuse
• Parking lamp bulb
• Harness between IPDM E/R 

and the front/rear combination 
lamp

• Harness between the front/rear 

combination lamp and ground

• IPDM E/R

Parking lamp circuit
Refer to 

EXL-96

.

Both sides

—

Symptom diagnosis
"PARKING, LICENSE PLATE AND 
TAIL LAMPS ARE NOT TURNED 
ON"
Refer to 

EXL-113

.

Turn signal lamp does not 
blink.

Indicator lamp is nor-
mal.
(The applicable side 
performs the high flash-
er activation).

• Harness between BCM and 

each turn signal lamp

• Turn signal lamp bulb
• Door mirror (if equipped with 

turn signals in the door mirrors)

Turn signal lamp circuit
Refer to 

EXL-99

.

Turn signal indicator lamp 
does not blink.

One side

Combination meter

—

Both sides
(Always)

• Turn signal indicator lamp sig-

nal

• Combination meter
• BCM

• Combination meter. 

Data monitor "TURN IND"

• BCM  (FLASHER)

Active test "FLASHER"

Both sides
(Does blink when acti-
vating the hazard warn-
ing lamp with the 
ignition switch OFF)

• The combination meter power 

supply and the ground circuit

• Combination meter

Combination meter
Power supply and the ground circuit
Refer to 

MWI-52

.

• Hazard warning lamp does not activate.
• Hazard warning lamp continues activating. (Turn 

signal is normal)

• Hazard switch
• Harness between the hazard 

switch and BCM

• BCM

Hazard switch
Refer to 

EXL-105

.

Symptom

Possible cause

Inspection item

NORMAL OPERATING CONDITION

EXL-109

< SYMPTOM DIAGNOSIS >

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NORMAL OPERATING CONDITION

Description

INFOID:0000000009757531

AUTO LIGHT SYSTEM

The auto light system may not turn the headlamp ON/OFF immediately after passing a dark area or a bright

area (short tunnel, sky bridge, shadowed area etc.). This is normal.

EXL-110

< SYMPTOM DIAGNOSIS >

BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM

BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM

Description

INFOID:0000000009757532

The headlamps (both sides) do not switch to high beam when the lighting switch is in the HI or PASS setting.

Diagnosis Procedure

INFOID:0000000009757533

1.

COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) INSPECTION

Check the combination switch (lighting and turn signal switch). Refer to 

BCS-72, "Symptom Table"

 (with Intel-

ligent Key system) or 

BCS-125, "Symptom Table"

 (without Intelligent Key system).

Is the inspection results normal?

YES

>> GO TO 2

NO

>> Repair or replace the malfunctioning part.

2.

CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT

CONSULT DATA MONITOR

1. Select HL HI REQ of IPDM E/R DATA MONITOR item.

2. While operating the lighting switch, check the monitor status.

Is the inspection results normal?

YES

>> GO TO 3

NO

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

 (with Intelligent Key system) or 

BCS-

126, "Removal and Installation"

 (without Intelligent Key system).

3.

HEADLAMP (HI) CIRCUIT INSPECTION

Check the headlamp (HI) circuit. Refer to 

EXL-88, "Diagnosis Procedure"

.

Is the inspection results normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation"

 (with Intelligent Key system) or

PCS-58, "Removal and Installation"

 (without Intelligent Key system).

NO

>> Repair or replace the malfunctioning part.

Monitor item

Condition

Monitor status

HL HI REQ

Lighting switch

(2nd)

HI or PASS

ON

Except for HI or PASS

OFF