Nissan Pathfinder (2008 year). Manual — part 400
TRAILER TOW
EXL-99
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ALLIA0499GB
EXL-100
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Description
INFOID:0000000001712404
REFERENCE VALUES FOR BCM
For BCM reference values, refer to
TERMINAL LAYOUT FOR BCM
For the terminal layout for the BCM, refer to
.
PHYSICAL VALUES FOR BCM
For physical values for the BCM, refer to
.
WIRING DIAGRAM - BCM
For the BCM wiring diagram, refer to
.
DTC INSPECTION PRIORITY CHART - BCM
For the BCM DTC inspection priority chart, refer to
BCS-50, "DTC Inspection Priority Chart"
DTC INDEX - BCM
For the BCM DTC index, refer to
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
EXL-101
< ECU DIAGNOSIS >
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Description
INFOID:0000000001712405
REFERENCE VALUES FOR IPDM E/R
For IPDM E/R reference values, refer to
TERMINAL LAYOUT FOR IPDM E/R
For the terminal layout for the IPDM E/R, refer to
PHYSICAL VALUES FOR IPDM E/R
For physical values for the IPDM E/R, refer to
WIRING DIAGRAM - IPDM E/R
For the IPDM E/R wiring diagram, refer to
.
FAIL SAFE - IPDM E/R
For IPDM E/R fail safe information, refer to
.
DTC INDEX - IPDM E/R
For the IPDM E/R DTC index, refer to
EXL-102
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000001712406
CAUTION:
Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis 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
(High beam relay)
• IPDM E/R
Headlamp (HI) circuit
Refer to
.
Both sides
Symptom diagnosis
"BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM"
Refer to
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
Front combination lamp (Low
beam relay)
—
Both sides
• Combination switch
• Harness between the combina-
tion switch and BCM
• BCM
Combination 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
.
Headlamp does not turn
OFF.
When the ignition
switch is turned ON
• BCM
• Combination switch
Combination switch
Refer to
.
The ignition switch is
turned OFF (After acti-
vating the battery sav-
er).
IPDM E/R
—
Headlamp is not turned ON/OFF with the lighting
switch AUTO.
• Combination switch
• Harness between the combina-
tion switch and BCM
• BCM
Combination switch
Refer to
.
• Optical sensor
• Harness between the optical
sensor and BCM
• BCM
Optical sensor
Refer to
.
EXTERIOR LIGHTING SYSTEM SYMPTOMS
EXL-103
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Daytime light system does not activate.
• Either high beam bulb
• Parking brake switch
• Combination switch
• BCM
• IPDM E/R
• Daytime light relay
• Harness between IPDM E/R
and daytime light relay.
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
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
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
.
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-104
< SYMPTOM DIAGNOSIS >
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000001712407
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-105
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BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
Description
INFOID:0000000001712408
The headlamps (both sides) do not switch to high beam when the lighting switch is in the HI or PASS setting.
Diagnosis Procedure
INFOID:0000000001712409
1.
COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to
.
Is the combination switch normal?
YES
>> GO TO 2
NO
>> Repair or replace the malfunctioning part.
2.
CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1.
Select "HL HI REQ" of IPDM E/R DATA MONITOR item.
2.
With operating the lighting switch, check the monitor status.
Is the item status normal?
YES
>> GO TO 3
NO
>> Replace BCM. Refer to
BCS-54, "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-30, "Removal and Installation of IPDM E/R"
.
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
EXL-106
< SYMPTOM DIAGNOSIS >
BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON
BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON
Description
INFOID:0000000001712410
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis Procedure
INFOID:0000000001712411
1.
CHECK COMBINATION SWITCH
Check the combination switch. Refer to
.
Is the combination switch normal?
YES
>> GO TO 2
NO
>> Repair or replace the malfunctioning part.
2.
CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1.
Select "HL LO REQ" of IPDM E/R DATA MONITOR item.
2.
With operating the lighting switch, check the monitor status.
Is the item status normal?
YES
>> GO TO 3
NO
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
3.
HEADLAMP (LO) CIRCUIT INSPECTION
Check the headlamp (LO) circuit. Refer to
.
Is the headlamp (LO) circuit normal?
YES
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation of IPDM E/R"
.
NO
>> Repair or replace the malfunctioning part.
Monitor item
Condition
Monitor status
HL LO REQ
Lighting switch
2ND
ON
OFF
OFF
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