Nissan Murano Z51 (2008 year). Manual — part 275
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Wiring Diagram - IPDM E/R -
INFOID:0000000003470020
JCMWM3172GB
Revision: 2008 October
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< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
JCMWM3173GB
Revision: 2008 October
2009 Murano
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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JCMWM3174GB
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Fail-safe
INFOID:0000000003470021
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
JCMWM3175GB
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MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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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.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.
Control part
Fail-safe operation
Cooling fan
• Turns ON the cooling fan relay-2 and the cooling fan relay-3 when ignition switch is
turned ON (Cooling fan operates at HI)
• Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3
when the ignition switch is turned OFF (Cooling fan does not operate)
A/C compressor
A/C relay OFF
Alternator
Outputs the power generation command signal (PWM signal) 0%
Control part
Fail-safe 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 high relay OFF
• Parking lamps
• License plate lamps
• Side maker lamps
• Illuminations
• 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/AUTO mode and the
front wiper motor is operating.
Front fog lamps
Front fog lamp relay OFF
Horn
Horn OFF
Ignition relay
The status just before activation of fail-safe is maintained.
Starter motor
Starter control relay OFF
Steering lock unit
Steering lock relay OFF
Voltage judgment
IPDM E/R judgment
Operation
Ignition relay contact side
Ignition relay excitation coil
side
ON
ON
Ignition relay ON normal
—
OFF
OFF
Ignition relay OFF normal
—
ON
OFF
Ignition relay ON stuck
• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 min-
utes
OFF
ON
Ignition relay OFF stuck
Detects DTC “B2099: IGN RELAY OFF”
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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.
DTC Index
INFOID:0000000003470022
NOTE:
• The details of time display are as follows.
- CRNT: A malfunction is detected now.
- PAST: A malfunction was detected in the past.
• IGN counter is displayed on FFD (Freeze Frame data).
- The number is 0 when is detected now.
- The number increases like 1
→
2 ··· 38
→
39 after returning to the normal condition whenever IGN OFF
→
ON.
- The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
×
: Applicable
Ignition switch
Front wiper switch
Front wiper stop position signal
ON
OFF
The front wiper stop position signal (stop
position) cannot be input for 10 seconds.
ON
The front wiper auto stop signal does not
change for 10 seconds.
CONSULT display
Fail-safe
Refer to
No DTC is detected.
further testing
may be required.
—
—
U1000: CAN COMM CIRCUIT
×
B2098: IGN RELAY ON
×
B2099: IGN RELAY OFF
—
B2108: STRG LCK RELAY ON
—
B2109: STRG LCK RELAY OFF
—
B210A: STRG LCK STATE SW
—
B210B: START CONT RLY ON
—
B210C: START CONT RLY OFF
—
B210D: STARTER RELAY ON
—
B210E: STARTER RELAY OFF
—
B210F: INTRLCK/PNP SW ON
—
B2110: INTRLCK/PNP SW OFF
—
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MWI
THE FUEL GAUGE POINTER DOES NOT MOVE
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SYMPTOM DIAGNOSIS
THE FUEL GAUGE POINTER DOES NOT MOVE
Description
INFOID:0000000003415577
Fuel gauge needle will not move from a certain position.
Diagnosis Procedure
INFOID:0000000003415578
1.
CHECK FOR THE COMBINATION METER IN SELF-DIAGNOSIS MODE
Check that the fuel gauge needle moves normally by using self-diagnosis function of the combination meter.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace combination meter. Refer to
MWI-145, "Removal and Installation"
2.
CHECK COMBINATION METER OUTPUT SIGNAL
1.
Connect CONSULT-III.
2.
Select the “Data Monitor” for the “METER/M&A” and compare the “FUEL METER” monitor value with the
fuel gauge reading on the combination meter. Refer to
MWI-46, "Component Function Check"
.
Does monitor value match fuel gauge reading?
YES
>> GO TO 3.
NO
>> Replace combination meter.
3.
CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
Check the fuel level sensor signal circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK FUEL LEVEL SENSOR UNIT
Perform a unit check for the fuel level sensor unit. Refer to
MWI-47, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace fuel level sensor unit. Refer to
FL-6, "Removal and Installation"
.
5.
CHECK FLOAT INTERFERENCE
Check that the float arm interferes with or binds to other components in the fuel tank.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Repair or replace malfunctioning parts.
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THE METER CONTROL SWITCH IS INOPERATIVE
THE METER CONTROL SWITCH IS INOPERATIVE
Description
INFOID:0000000003415579
If any of the following malfunctions is found for the meter control switch operation.
• All switches are inoperative.
• The specified switch cannot be operated.
Diagnosis Procedure
INFOID:0000000003415580
1.
CHECK METER CONTROL SWITCH SIGNAL CIRCUIT
Check the meter control switch signal circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK METER CONTROL SWITCH
Perform a unit check for the meter control switch. Refer to
MWI-50, "Component Inspection"
Is the inspection result normal?
YES
>> Replace combination meter.
NG
>> Replace meter control switch.
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON
Description
INFOID:0000000004751797
The oil pressure warning lamp stays off when the ignition switch is turned ON.
Diagnosis Procedure
INFOID:0000000004751798
1.
CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to
PCS-10, "Diagnosis Description"
Is oil pressure warning lamp blinking?
YES
>> GO TO 2.
NO
>> GO TO 4.
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
Perform a unit check for the oil pressure switch. Refer to
MWI-52, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Replace oil pressure switch.
4.
CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT-III and perform an input signal check for the combination meter. Refer to
.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
.
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THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
Description
INFOID:0000000004751799
The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).
Diagnosis Procedure
INFOID:0000000004751800
1.
CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to
PCS-10, "Diagnosis Description"
Is oil pressure warning lamp blinking?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK IPDM E/R OUTPUT VOLTAGE
1.
Turn ignition switch OFF.
2.
Disconnect the oil pressure switch connector.
3.
Turn ignition switch ON.
4.
Check voltage between the oil pressure switch harness connector terminal and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
CHECK OIL PRESSURE SWITCH
Perform a unit check for the oil pressure switch. Refer to
MWI-52, "Component Inspection"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
NO
>> Replace oil pressure switch.
4.
CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
Check the oil pressure switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK COMBINATION METER INPUT SIGNAL
Connect CONSULT-III and perform an input signal check for the combination meter. Refer to
.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
Terminals
Voltage
(Approx.)
(+)
(-)
Oil pressure switch
Ground
Connector
Terminal
F63
1
12 V
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MWI
THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING, OR
DOES NOT DISPLAY
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THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING,
OR DOES NOT DISPLAY
Description
INFOID:0000000003415585
• The parking brake warning is displayed during vehicle travel even though the parking brake is released.
• The parking brake warning is not displayed even though driving the vehicle with the parking brake applied.
Diagnosis Procedure
INFOID:0000000003415586
1.
CHECK PARKING BRAKE WARNING LAMP OPERATION
1.
Start engine.
2.
Check the operation of the parking brake warning lamp when operating the parking brake.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> GO TO 2.
2.
CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Check the parking brake switch signal circuit. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK PARKING BRAKE SWITCH
Perform a unit check for the parking brake switch. Refer to
BRC-80, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace parking brake switch.
Condition
Warning lamp status
When parking brake is applied
ON
When parking brake is released
OFF
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THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR DOES
NOT DISPLAY
THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR
DOES NOT DISPLAY
Description
INFOID:0000000003415587
• The warning is still displayed even after washer fluid is added.
• The warning is not displayed even though the washer tank is empty.
Diagnosis Procedure
INFOID:0000000003415588
1.
CHECK WASHER LEVEL SWITCH SIGNAL CIRCUIT
Check the washer level switch signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK WASHER LEVEL SWITCH
Perform a unit check for the washer level switch. Refer to
MWI-55, "Component Inspection"
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace washer level switch. Refer to
WW-122, "Removal and Installation"
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THE DOOR OPEN WARNING CONTINUES DISPLAYING, OR DOES NOT DIS-
PLAY
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THE DOOR OPEN WARNING CONTINUES DISPLAYING, OR DOES NOT
DISPLAY
Description
INFOID:0000000003415589
• The door ajar warning is displayed even though all of the doors are closed.
• The door ajar warning is not displayed even though a door is ajar.
Diagnosis Procedure
INFOID:0000000003415590
1.
CHECK BCM INPUT/OUTPUT SIGNAL
Connect CONSULT-III and check the BCM input signals. Refer to
DOOR : Component Function Check"
BACK DOOR : Component Function Check"
(without automatic back door).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK COMBINATION METER INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “DOOR W/L” monitor value.
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace BCM. Refer to
BCS-96, "Removal and Installation"
3.
CHECK DOOR SWITCH SIGNAL CIRCUIT
Check the door switch signal circuit. Refer to
DLK-103, "WITH AUTOMATIC BACK DOOR : Diagnosis Proce-
(with automatic back door) or
DLK-106, "WITHOUT AUTOMATIC BACK DOOR : Diagnosis Procedure"
(without automatic back door).
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK DOOR SWITCH
Perform a unit check for the door switch. Refer to
DLK-105, "WITH AUTOMATIC BACK DOOR : Component
DLK-108, "WITHOUT AUTOMATIC BACK DOOR : Component
(without automatic back door).
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace applicable door switch. Refer to
DLK-368, "Removal and Installation"
“DOOR W/L”
Door open
: On
Door closed
: Off
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< SYMPTOM DIAGNOSIS >
THE AMBIENT TEMPERATURE DISPLAY IS INCORRECT
THE AMBIENT TEMPERATURE DISPLAY IS INCORRECT
Description
INFOID:0000000003415593
• The displayed ambient air temperature is higher than the actual temperature.
• The displayed ambient air temperature is lower than the actual temperature.
Diagnosis Procedure
INFOID:0000000003415594
NOTE:
Check that the symptom is not applicable to the normal operating condition before starting diagnosis. Refer to
MWI-143, "INFORMATION DISPLAY : Description"
1.
CHECK AMBIENT SENSOR SIGNAL CIRCUIT
Check the ambient sensor signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL CIRCUIT
Check the A/C auto amp. connection recognition signal circuit. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK AMBIENT SENSOR
Perform a unit check for the ambient sensor. Refer to
HAC-46, "Component Inspection"
Is the inspection result normal?
YES
>> Replace combination meter.
NO
>> Replace ambient sensor. Refer to
VTL-25, "Removal and Installation"
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NORMAL OPERATING CONDITION
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NORMAL OPERATING CONDITION
COMPASS
COMPASS : Description
INFOID:0000000003415595
COMPASS
• The electronic compass is highly protected from changes in most magnetic fields. However, some large
changes in magnetic fields can affect it. Some examples are (but not limited to): high tension power lines,
large steel buildings, subways, steel bridges, automatic car washes, large piles of scrap metal, etc. While
this does not happen very often, it is possible.
• During normal operation, the compass mirror will continuously update the compass calibration to adjust for
gradual changes in the vehicle's magnetic “remnant” field. If the vehicle is subjected to high magnetic influ-
ences, the compass may appear to indicate false headings, become locked, or appear that it is unable to be
calibrated. If this occurs, perform the calibration procedure.
• If at any time the compass continually displays an incorrect direction or the reading is erratic or locked, verify
the correct zone variance.
Symptom Chart
INFORMATION DISPLAY
INFORMATION DISPLAY : Description
INFOID:0000000003415596
AMBIENT AIR TEMPERATURE
The displayed ambient air temperature on the information display may differ from the actual temperature
because it is a corrected value calculated from the ambient sensor signal by the combination meter. Refer to
MWI-26, "INFORMATION DISPLAY : System Description"
for details on the correction process.
POSSIBLE DRIVING DISTANCE
The calculated possible driving distance may differ from the actual distance to empty if the refueling amount is
approximately 15 (4 US gal, 3-1/4 Imp gal) or less. This is because the refuel control (moves the fuel gauge
needle quicker than normal judging that the driver is refueling the vehicle) is not performing.
Symptom
Cause
Solution / Reference
The compass display reads “C”.
• Compass is not calibrated.
• Incorrect zone variance setting.
• Large change in magnetic field (Steel
bridges, subways, concentrations of
metal, carwashes, etc.)
• Compass was calibrated incorrectly or in
the presence of a strong magnetic field.
Compass shows the wrong direction.
Compass does not change direction ap-
pears “Locked”.
Compass does not show all the directions,
one or more is missing.
The compass was calibrated but it “loses”
calibration.
On long trips the compass shows the
wrong direction.
Perform zone variation setting if correct
reading is desired in that location. Refer
to
Revision: 2008 October
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MWI-144
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004751759
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.
Revision: 2008 October
2009 Murano
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