Nissan Frontier. Instruction — part 800
TRAILER TOW
EXL-125
< WIRING DIAGRAM >
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ABLIA5658GB
EXL-126
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000009478505
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
.
Both sides
Symptom diagnosis
"BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM"
Refer to
EXL-129, "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
.
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
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
.
Both sides
Symptom diagnosis
"BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON"
Refer to
EXL-131, "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
EXTERIOR LIGHTING SYSTEM SYMPTOMS
EXL-127
< SYMPTOM DIAGNOSIS >
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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
.
• Optical sensor
• Harness between the optical
sensor and BCM
• BCM
Optical sensor
Refer to
.
Daytime light system does not activate.
• Either high beam bulb
• Parking brake switch
• Combination switch (lighting
and turn signal switch)
• BCM
• IPDM E/R
• Daytime light relay 1
• Harness between IPDM E/R
and daytime light relay 1.
Daytime light system description.
Refer to
.
Front fog lamp is not
turned ON.
One side
• Front fog lamp bulb
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
• IPDM E/R
Front fog lamp circuit
Refer to
.
Both side
Symptom diagnosis
"BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON"
Refer to
EXL-133, "Diagnosis Procedure"
Parking lamp is not turned
ON.
One side
• Fuse
• Parking lamp bulb
• Harness between IPDM E/R
and the front/rear combination
lamp
• Front/rear combination lamp
• IPDM E/R
Parking lamp circuit
Refer to
.
Both sides
Symptom diagnosis
"PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED
ON"
Refer to
EXL-132, "Diagnosis Procedure"
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
Turn signal lamp circuit
Refer to
.
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
Power supply and the ground circuit
Refer to
.
Symptom
Possible cause
Inspection item
EXL-128
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000009478506
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.
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