Nissan Pathfinder (2010 year). Instruction — part 514
MWI-84
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ABMIA1290GB
2010 Pathfinder
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-85
< ECU DIAGNOSIS >
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ABMIA1291GB
2010 Pathfinder
MWI-86
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail Safe
INFOID:0000000005488343
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With ECM
ABMIA1292GB
2010 Pathfinder
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-87
< ECU DIAGNOSIS >
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If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
Control part
Fail-safe in operation
Cooling fan
• Turns ON the cooling fan relay when the ignition switch is turned ON
• Turns OFF the cooling fan relay when the ignition switch is turned OFF
Control part
Fail-safe in operation
Headlamp
• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp (LH/RH) high relays OFF
• Parking lamps
• License plate lamps
• Tail lamps
• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper
• The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT mode and the front wiper
motor is operating.
Rear window defogger
Rear window defogger relay OFF
A/C compressor
A/C relay OFF
Front fog lamps (if equipped)
Front fog lamp relay OFF
Ignition switch
Ignition relay
Tail lamp relay
ON
ON
—
OFF
OFF
—
Ignition switch
Front wiper switch
Auto stop signal
ON
OFF
Front wiper stop position signal cannot be
input 10 seconds.
ON
The signal does not change for 10 seconds.
2010 Pathfinder
MWI-88
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
DTC Index
INFOID:0000000005488344
NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions that are detected now
• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It
increases like 0
→
1
→
2 ··· 38
→
39 after returning to the normal condition whenever IGN OFF
→
ON. It is
fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is
detected again in the process.
CONSULT-III display
Fail-safe
TIME
NOTE
Refer to
No DTC is detected.
further testing
may be required.
—
—
—
—
U1000: CAN COMM CIRCUIT
×
CRNT
1 – 39
2010 Pathfinder
MWI
THE FUEL GAUGE POINTER DOES NOT MOVE
MWI-89
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
THE FUEL GAUGE POINTER DOES NOT MOVE
Description
INFOID:0000000005260406
Fuel gauge needle will not move from a certain position.
Diagnosis Procedure
INFOID:0000000005260407
1.
CHECK COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Using “FUEL METER” of “DATA MONITOR”, compare the monitor value with the fuel gauge reading on
the combination meter. Refer to
MWI-32, "Component Function Check"
Does monitor value match fuel gauge reading?
YES
>> GO TO 2
NO
>> Replace combination meter. Refer to
MWI-96, "Removal and Installation"
2.
CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK FUEL LEVEL SENSOR UNIT
Perform a unit check for the fuel level sensor unit. Refer to
MWI-33, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Replace fuel level sensor unit. Refer to
FL-11, "Removal and Installation"
4.
CHECK FLOAT INTERFERENCE
Check that the float arm does not interfere or bind with any of the components in the fuel tank.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-96, "Removal and Installation"
NO
>> Repair or replace malfunctioning parts.
2010 Pathfinder
MWI-90
< SYMPTOM DIAGNOSIS >
THE FUEL GAUGE POINTER DOES NOT MOVE TO "F" WHEN REFUELING
THE FUEL GAUGE POINTER DOES NOT MOVE TO "F" WHEN REFUEL-
ING
Description
INFOID:0000000005260408
The fuel gauge needle will not move to “F” position when refueling.
Diagnosis Procedure
INFOID:0000000005260409
1.
OBSERVE FUEL GAUGE
Does it take a long time for the pointer to move to FULL position?
YES or NO
YES
>> GO TO 2
NO
>> GO TO 3
2.
IDENTIFY FUELING CONDITION
Was the vehicle fueled with the ignition switch ON?
YES or NO
YES
>> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO
>> GO TO 3
3.
OBSERVE VEHICLE POSITION
Is the vehicle parked on an incline?
YES or NO
YES
>> Check the fuel level indication with vehicle on a level surface.
NO
>> GO TO 4
4.
OBSERVE FUEL GAUGE POINTER
During driving, does the fuel gauge pointer move gradually toward EMPTY position?
YES or NO
YES
>> Check the components. Refer to
MWI-33, "Component Inspection"
NO
>> The float arm may interfere or bind with any of the components in the fuel tank.
2010 Pathfinder
MWI
THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
MWI-91
< SYMPTOM DIAGNOSIS >
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000005260410
The oil pressure warning lamp stays off when the ignition switch is turned ON.
Diagnosis Procedure
INFOID:0000000005260411
1.
CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to
PCS-12, "Diagnosis Description"
Is oil pressure warning lamp illuminated?
YES
>> GO TO 2
NO
>> Replace combination meter. Refer to
MWI-96, "Removal and Installation"
2.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK OIL PRESSURE SWITCH UNIT
Perform a unit check for the oil pressure switch. Refer to
MWI-35, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-33, "Removal and Installation of IPDM E/R"
.
NO
>> Replace oil pressure switch.
2010 Pathfinder
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