Nissan Xterra. Instruction — part 414
EXL-144
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Headlamp is not turned ON/OFF with the lighting
switch AUTO.
• BCM
• Combination switch (lighting
and turn signal switch)
• Harness between IPDM E/R
and the front combination lamp
• 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
.
Off-road lamps are not
turned ON.
One side
• Off-road lamps bulb
• Harness between Off-road
lamps relay and the Off-road
lamp assembly
Off-road lamps circuit
Refer to
.
Both side
• Off-road lamps switch
• Fuse
• Off-road lamps relay
• Off-road lamp cover sensor
• BCM
• Harness between fuse block (J/
B) and the Off-road lamp as-
sembly
• Off-road lamps switch circuit
Refer to
.
• Off-road lamp cover sensor cir-
cuit
Refer to
.
• Off-road lamps circuit
Refer to
.
Off-road lamps are not
turned OFF
Both side
• Off-road lamps relay
• BCM
• Harness between Off-road
lamps relay and the BCM
Off-road lamps circuit
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-151, "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-150, "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
.
Symptom
Possible cause
Inspection item
EXTERIOR LIGHTING SYSTEM SYMPTOMS
EXL-145
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
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
.
Symptom
Possible cause
Inspection item
EXL-146
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000009484941
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.
BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
EXL-147
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
Description
INFOID:0000000009484942
The headlamps (both sides) do not switch to high beam when the combination switch (lighting and turn signal
switch) is in the HI or PASS setting.
Diagnosis Procedure
INFOID:0000000009484943
1.
COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) INSPECTION
Check the combination switch (lighting and turn signal switch). Refer to
Is the combination switch (lighting and turn signal switch) 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. With operating the combination switch (lighting and turn signal switch), check the monitor status.
Is the item status normal?
YES
>> GO TO 3.
NO
>> Replace BCM. Refer to
BCS-50, "Removal and Installation"
3.
HEADLAMP (HI) CIRCUIT INSPECTION
Check the headlamp (HI) circuit. Refer to
Is the headlamp (HI) circuit normal?
YES
>> Replace IPDM E/R. Refer to
PCS-27, "Removal and Installation"
.
NO
>> Repair or replace the malfunctioning part.
Monitor item
Condition
Monitor status
HL HI REQ
Combination switch (lighting
and turn signal switch)
(2ND position)
HI or PASS
ON
Except for HI or
PASS
OFF
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