Nissan Pathfinder (2009 year). Instruction — part 405
EXL-30
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (IPDM E/R)
Concept of auto active test
• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
3
Tail, license, front fog and parking lamps
10 seconds
4
Headlamps
LO for 10 seconds
→
HI on-off for 5 seconds
5
A/C compressor (magnetic clutch)
ON
⇔
OFF 5 times
6
Cooling fan
10 seconds
Operation
sequence
Inspection Location
Operation
WKIA5163E
Symptom
Inspection contents
Possible cause
Oil pressure low warning indicator does not operate
Perform auto active test.
Does the oil pressure low
warning indicator operate?
YES
• IPDM E/R signal input cir-
cuit
• ECM signal input circuit
• CAN communication signal
between ECM and combi-
nation meter
NO
• CAN communication signal
between IPDM E/R, BCM
and combination meter
Oil pressure gauge does not operate
Perform auto active test.
Does the oil pressure gauge
operate?
YES
IPDM E/R signal input circuit
NO
• CAN communication signal
between IPDM E/R, BCM
and combination meter
Rear window defogger does not operate
Perform auto active test.
Does the rear window defog-
ger operate?
YES
BCM signal input circuit
NO
• Harness or connector be-
tween A/C and AV switch
assembly and AV control
unit
• CAN communication signal
between BCM and IPDM E/
R
2009 Pathfinder
DIAGNOSIS SYSTEM (IPDM E/R)
EXL-31
< FUNCTION DIAGNOSIS >
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CONSULT - III Function (IPDM E/R)
INFOID:0000000004422059
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC
DATA MONITOR
Monitor item
Any of the following components do not operate
• Front wipers
• Tail lamps
• License plate lamps
• Parking lamps
• Front fog lamps
• Headlamps (Hi, Lo)
Perform auto active test.
Does the applicable system
operate?
YES
BCM signal input system
NO
• Lamp or front wiper motor
malfunction
• Lamp or front wiper motor
ground circuit
• Harness or connector be-
tween IPDM E/R and appli-
cable system
• IPDM E/R (integrated relay
malfunction)
A/C compressor does not operate
Perform auto active test.
Does the A/C compressor op-
erate?
YES
• BCM signal input circuit
• CAN communication signal
between BCM and ECM
• CAN communication signal
between ECM and IPDM E/
R
NO
• Magnetic clutch malfunction
• Harness or connector be-
tween IPDM E/R and mag-
netic clutch
• IPDM E/R (integrated relay
malfunction)
Cooling fan does not operate
Perform auto active test.
Does the cooling fan operate?
YES
• ECM signal input circuit
• CAN communication signal
between ECM and IPDM E/
R
NO
• Cooling fan motor malfunc-
tion
• Harness or connector be-
tween IPDM E/R and cool-
ing fan
• IPDM E/R (integrated relay
malfunction)
Symptom
Inspection contents
Possible cause
Diagnosis mode
Description
ECU Identification
Allows confirmation of IPDM E/R part number.
Self Diagnostic Result
Displays the diagnosis results judged by IPDM E/R.
Data Monitor
Displays the real-time input/output data from IPDM E/R input/output data.
Active Test
IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor
The results of transmit/receive diagnosis of CAN communication can be read.
2009 Pathfinder
EXL-32
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (IPDM E/R)
ACTIVE TEST
Test item
Monitor Item
[Unit]
MAIN SIG-
NALS
Description
MOTOR FAN REQ
[1/2/3/4]
×
Displays the status of the cooling fan speed request signal received from ECM via
CAN communication.
A/C COMP REQ
[OFF/ON]
×
Displays the status of the A/C request signal received from AV control unit via
CAN communication.
TAIL&CLR REQ
[OFF/ON]
×
Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[OFF/ON]
×
Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[OFF/ON]
×
Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[OFF/ON]
×
Displays the status of the front fog lamp request signal received from BCM via
CAN communication.
HL WASHER REQ
[OFF/ON]
NOTE:
This item is displayed, but cannot be monitored.
FR WIP REQ
[STOP/1LOW/LOW/HI]
×
Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P]
×
Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[OFF/Block]
×
Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
ST RLY REQ
[OFF/ON]
Displays the status of the starter request signal received from ECM via CAN com-
munication.
IGN RLY
[OFF/ON]
×
Displays the status of the ignition relay judged by IPDM E/R.
RR DEF REQ
[OFF/ON]
×
Displays the status of the rear defogger request signal received from AV control
unit via CAN communication.
OIL P SW
[OPEN/CLOSE]
Displays the status of the oil pressure switch judged by IPDM E/R.
DTRL REQ
[OFF]
NOTE:
This item is displayed, but cannot be monitored.
HOOD SW
[OPEN/CLOSE]
NOTE:
This item is displayed, but cannot be monitored.
THFT HRN REQ
[OFF/ON]
Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[OFF/ON]
Displays the status of the horn reminder signal received from BCM via CAN com-
munication.
Test item
Operation
Description
REAR DEFOGGER
OFF
OFF
ON
Operates rear window defogger relay.
FRONT WIPER
OFF
OFF
LO
Operates the front wiper relay.
HI
Operates the front wiper relay and front wiper high relay.
HEAD LAMP WASHER
ON
—
2009 Pathfinder
DIAGNOSIS SYSTEM (IPDM E/R)
EXL-33
< FUNCTION DIAGNOSIS >
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MOTOR FAN
1
OFF
2
OFF
3
Operates the cooling fan relay.
4
Operates the cooling fan relay.
EXTERNAL LAMPS
OFF
OFF
TAIL
Operates the tail lamp relay.
LO
Operates the headlamp low relay.
HI
Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
FOG
Operates the front fog lamp relay
HORN
ON
Operates horn relay for 20 ms.
Test item
Operation
Description
2009 Pathfinder
EXL-34
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000004422064
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
18 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
Power
source
Condition
Voltage (V) (Ap-
prox.)
(+)
(-)
M18
11
Ground
ACC
power
supply
Ignition
switch
ACC or
ON
Battery voltage
38
Ground
Ignition
power
supply
Ignition
switch ON
or START
Battery voltage
M20
57
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
70
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
LIIA2415E
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
2009 Pathfinder
POWER SUPPLY AND GROUND CIRCUIT
EXL-35
< COMPONENT DIAGNOSIS >
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000004427400
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK BATTERY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R.
3.
Check voltage between IPDM E/R harness connectors and
ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery
A, D
2
Battery
C
Terminals
Ignition switch position
(+)
(
−
)
OFF
ON
START
Connector
Terminal
E118
1
Ground
Battery
voltage
Battery
voltage
Battery
voltage
2
Battery
voltage
Battery
voltage
Battery
voltage
SKIA1987E
IPDM E/R
Ground
Continuity
Connector
Terminal
E122 (A)
38
Yes
E124 (B)
59
AWMIA0024ZZ
2009 Pathfinder
EXL-36
< COMPONENT DIAGNOSIS >
HEADLAMP (HI) CIRCUIT
HEADLAMP (HI) CIRCUIT
Description
INFOID:0000000003939614
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on
inputs from the BCM via the CAN communication lines. When the headlamp high relay is energized, power
flows through fuses 34 and 35, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp high beam.
Component Function Check
INFOID:0000000003939615
1.
CHECK HEADLAMP (HI) OPERATION
WITHOUT CONTULT-III
1.
Start IPDM E/R auto active test. Refer to
PCS-12, "Diagnosis Description"
2.
Check that the headlamp switches to the high beam.
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
CONSULT-III
1.
Select "EXTERNAL LAMP" of IPDM E/R active test item.
2.
With the test item operating, check that the headlamp switches to high beam.
Does the headlamp switch to high beam?
YES
>> Headlamp (HI) circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000003939616
1.
CHECK HEADLAMP (HI) FUSES
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not open.
Is the fuse open?
YES
>> Repair the harness and replace the fuse.
NO
>> GO TO 2
2.
CHECK HEADLAMP (HI) OUTPUT VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connector E11 or E107.
3.
Turn the ignition switch ON.
4.
Turn the high beam headlamps ON.
5.
With the high beam headlamps ON, check the voltage between
the combination lamp connector and ground.
Is battery voltage present?
YES
>> GO TO 4
NO
>> GO TO 3
HI
: Headlamp switches to the high beam.
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp HI (LH)
IPDM E/R
34
10A
Headlamp HI (RH)
IPDM E/R
35
10A
(+)
(
−
)
Voltage
Connector
Terminal
LH
E11
1
Ground
Battery voltage
RH
E107
1
WKIA4989E
2009 Pathfinder
HEADLAMP (HI) CIRCUIT
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< COMPONENT DIAGNOSIS >
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3.
CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector E123.
3.
Check continuity between the IPDM E/R harness connector (A)
and the front combination lamp harness connector (B).
Does continuity exist?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT COMBINATION LAMP (HI) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO
>> Repair the harness.
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
55
E11
1
Yes
RH
56
E107
1
ALLIA0623GB
Connector
Terminal
—
Continuity
LH
E11
2
Ground
Yes
RH
E107
2
ALLIA0624GB
2009 Pathfinder
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