Nissan Murano Z51 (2008 year). Manual — part 414
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:0000000003733519
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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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:0000000003733520
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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WIPER AND WASHER SYSTEM SYMPTOMS
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SYMPTOM DIAGNOSIS
WIPER AND WASHER SYSTEM SYMPTOMS
WITH RAIN SENSOR
WITH RAIN SENSOR : Symptom Table
INFOID:0000000003307653
CAUTION:
Perform the self-diagnosis with CONSULT-III before performing the diagnosis by symptom. Perform
the diagnosis by DTC if DTC is detected.
Symptom
Probable malfunction location
Inspection item
Front wiper does not
operate.
HI only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (HI) circuit
Refer to
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
LO and INT/AUTO
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (LO) circuit
Refer to
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
INT/AUTO only
(Auto operation)
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• Rain sensor
• Harness between rain sensor and BCM
• BCM
Rain sensor
Refer to
.
HI, LO and INT/AUTO
SYMPTOM DIAGNOSIS
“FRONT WIPER DOES NOT OPERATE”
Refer to
.
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WIPER AND WASHER SYSTEM SYMPTOMS
Front wiper does not
stop.
HI only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R
—
LO only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R
—
INT/AUTO only
(Auto operation)
• Combination switch
• BCM
Combination switch
Refer to
• Rain sensor
• Harness between rain sensor and BCM
• BCM
Rain sensor
Refer to
.
Front wiper does not
operate normally.
Sensitivity adjustment
cannot be performed.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Does not return to stop
position. [Repeatedly
operates for 10 sec-
onds and then stops
for 20 seconds. After
that, it stops the opera-
tion. (Fail-safe)]
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper auto stop signal
circuit
Refer to
.
Rear wiper does not
operate.
ON only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
INT only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
ON and INT
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor
Combination switch
Refer to
Rear wiper does not
stop.
ON only
• Combination switch
• BCM
Rear wiper motor circuit
Refer to
.
INT only
• Combination switch
• BCM
Combination switch
Refer to
Symptom
Probable malfunction location
Inspection item
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WIPER AND WASHER SYSTEM SYMPTOMS
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WITHOUT RAIN SENSOR
WITHOUT RAIN SENSOR : Symptom Table
INFOID:0000000003519197
CAUTION:
Perform the self-diagnosis with CONSULT-III before performing the diagnosis by symptom. Perform
the diagnosis by DTC if DTC is detected.
Rear wiper does not
operate normally.
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between rear wiper motor and BCM
• BCM
Combination switch
Refer to
BCM
—
Rear wiper does not
return to the stop posi-
tion. [Stops after a five-
second operation.
(Fail-safe)]
• BCM
• Harness between rear wiper motor and BCM
• Rear wiper motor
Rear wiper auto stop signal
circuit
Refer to
.
Symptom
Probable malfunction location
Inspection item
Symptom
Probable malfunction location
Inspection item
Front wiper does not
operate.
HI only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (HI) circuit
Refer to
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
LO and INT
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (LO) circuit
Refer to
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
INT only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
HI, LO and INT
SYMPTOM DIAGNOSIS
“FRONT WIPER DOES NOT OPERATE”
Refer to
.
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WIPER AND WASHER SYSTEM SYMPTOMS
Front wiper does not
stop.
HI only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R
—
LO only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
IPDM E/R
—
INT only
• Combination switch
• BCM
Combination switch
Refer to
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R DATA MONITOR
“FR WIP REQ”
Front wiper does not
operate normally.
Intermittent adjustment
cannot be performed.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Intermittent control
linked with vehicle
speed cannot be per-
formed.
Check the vehicle speed detection wiper setting.
Refer to
WW-18, "WIPER : CONSULT-III Function (BCM - WIPER)"
NOTE:
Factory setting of the front wiper intermitted operation is the operation without ve-
hicle speed.
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
BCM
—
Does not return to stop
position. [Repeatedly
operates for 10 sec-
onds and then stops
for 20 seconds. After
that, it stops the opera-
tion. (Fail-safe)]
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper auto stop signal
circuit
Refer to
.
Rear wiper does not
operate.
ON only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
INT only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
ON and INT
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch
Refer to
• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor
Combination switch
Refer to
Symptom
Probable malfunction location
Inspection item
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WIPER AND WASHER SYSTEM SYMPTOMS
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Rear wiper does not
stop.
ON only
• Combination switch
• BCM
Rear wiper motor circuit
Refer to
.
INT only
• Combination switch
• BCM
Combination switch
Refer to
Rear wiper does not
operate normally.
Wiper is not linked to
the washer operation.
• Combination switch
• Harness between rear wiper motor and BCM
• BCM
Combination switch
Refer to
BCM
—
Rear wiper does not
return to the stop posi-
tion. [Stops after a five-
second operation.
(Fail-safe)]
• BCM
• Harness between rear wiper motor and BCM
• Rear wiper motor
Rear wiper auto stop signal
circuit
Refer to
.
Symptom
Probable malfunction location
Inspection item
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NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
Description
INFOID:0000000003307654
FRONT WIPER MOTOR PROTECTION FUNCTION
• IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance)
such as a large amount of snow is detected during the front wiper operation.
• At that time turn OFF the front wiper and remove the foreign object. Then wait for approximately 20 seconds
or more and reactivate the front wiper. The wiper will operate normally.
REAR WIPER MOTOR PROTECTION FUNCTION
• BCM may stop rear wiper to protect the rear wiper motor when the rear wiper is stopped for 5 seconds or
more due to a snowfall.
• Rear wiper operates normally one minute after the obstacles are removed with rear wiper OFF.
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FRONT WIPER DOES NOT OPERATE
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FRONT WIPER DOES NOT OPERATE
Description
INFOID:0000000003307655
The front wiper does not operate under any operation conditions.
Diagnosis Procedure
INFOID:0000000003307656
1.
CHECK WIPER RELAY OPERATION
IPDM E/R AUTO ACTIVE TEST
1.
Start IPDM E/R auto active test. Refer to
PCS-10, "Diagnosis Description"
2.
Check that the front wiper operates at the LO/HI operation.
CONSULT-III ACTIVE TEST
1.
Select “FRONT WIPER” of IPDM E/R active test item.
2.
With operating the test item, check front wiper operation.
Is front wiper operation normally?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK FRONT WIPER MOTOR FUSE
1.
Turn the ignition switch OFF.
2.
Check that the front wiper motor 30 A fuse (#60) is not fusing.
Is the fuse fusing?
YES
>> Replace the fuse after repairing the applicable circuit.
NO
>> GO TO 3.
3.
CHECK FRONT WIPER MOTOR GROUND OPEN CIRCUIT
1.
Disconnect front wiper motor connector.
2.
Check continuity between front wiper motor harness connector and ground.
Does continuity exist?
YES
>> GO TO 4.
NO
>> Repair the harness or connector.
4.
CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Select “FRONT WIPER” of IPDM E/R active test item.
3.
With operating the test item, check voltage between IPDM E/R harness connector and ground.
Lo
: Front wiper LO operation
Hi
: Front wiper HI operation
Off
: Stop the front wiper.
Front wiper motor
Ground
Continuity
Connector
Terminal
E12
2
Existed
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FRONT WIPER DOES NOT OPERATE
Is the measurement value normal?
YES
>> Replace front wiper motor.
NO
>> Replace IPDM E/R.
5.
CHECK FRONT WIPER REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1.
Select “FR WIP REQ” of IPDM E/R data monitor item.
2.
Switch the front wiper switch to HI and LO.
3.
With operating the front wiper switch, check the status of “FR WIP REQ”.
Is the status of item normal?
YES
>> Replace IPDM E/R.
NO
>> GO TO 6.
6.
CHECK COMBINATION SWITCH
Perform the inspection of the combination switch. Refer to
Is combination switch normal?
YES
>> Replace BCM. Refer to
NO
>> Repair or replace the applicable parts.
Terminals
Test item
Voltage (Approx.)
(+)
(
−
)
IPDM E/R
Ground
FRONT WIPER
Connector
Terminal
E10
4
Lo
Battery voltage
Off
0 V
5
Hi
Battery voltage
Off
0 V
Monitor item
Condition
Monitor status
FR WIP REQ
Front wiper switch HI
On
Hi
Off
Stop
Front wiper switch LO
On
Low
Off
Stop
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PRECAUTIONS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004779910
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.
Precaution for Procedure without Cowl Top Cover
INFOID:0000000004779913
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
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< ON-VEHICLE REPAIR >
WASHER TANK
ON-VEHICLE REPAIR
WASHER TANK
Exploded View
INFOID:0000000003307665
Removal and Installation
INFOID:0000000003307666
REMOVAL
1.
Remove the clip (A).
2.
Pull out the washer tank inlet (1) from the washer tank.
3.
Remove the front bumper fascia. Refer to
.
4.
Disconnect washer pump connector.
5.
Disconnect washer level switch connector.
6.
Remove front washer tube and rear washer tube.
7.
Remove washer tank mounting bolts.
8.
Remove the washer tank from the vehicle.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Add water up to the top of the washer tank inlet after installing. Check that there is no leakage.
1.
Washer tank inlet
2.
Washer tank
JPLIA0866ZZ
: Vehicle front
JPLIA0867ZZ
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WASHER PUMP
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WASHER PUMP
Exploded View
INFOID:0000000003307667
Removal and Installation
INFOID:0000000003307668
REMOVAL
1.
Remove the fender protector RH (front). Refer to
EXT-23, "FENDER PROTECTOR : Exploded View"
.
2.
Disconnect washer pump connector.
3.
Remove front washer tube and rear washer tube.
4.
Remove washer pump from the washer tank.
5.
Remove the packing from the washer tank.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Never twist the packing when installing the washer pump.
1.
Washer tank
2.
Rear washer tube
3.
Packing
4.
Washer pump
5.
Front washer tube
6.
Washer pump connector
: Vehicle front
JPLIA0868ZZ
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< ON-VEHICLE REPAIR >
WASHER LEVEL SWITCH
WASHER LEVEL SWITCH
Removal and Installation
INFOID:0000000003468500
The washer level switch must be replaced together with the washer tank as an assembly. Refer to
.
Revision: 2008 October
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