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Nissan Murano Z51 (2008 year). Manual - part 275

MWI

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

MWI-129

< ECU DIAGNOSIS >

Wiring Diagram - IPDM E/R -

INFOID:0000000003470020

JCMWM3172GB

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2009 Murano

MWI-130

< 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)

MWI-131

< ECU DIAGNOSIS >

JCMWM3174GB

Revision: 2008 October

2009 Murano

MWI-132

< ECU DIAGNOSIS >

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)

MWI-133

< ECU DIAGNOSIS >

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

Ignition relay ON normal

—

OFF

Ignition relay OFF normal

—

OFF

Ignition relay ON stuck

• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 min-

utes

OFF

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

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MWI-134

< ECU DIAGNOSIS >

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

OFF

The front wiper stop position signal (stop
position) cannot be input for 10 seconds.

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

PCS-15

B2098: IGN RELAY ON

PCS-16

B2099: IGN RELAY OFF

—

PCS-17

B2108: STRG LCK RELAY ON

—

SEC-103

B2109: STRG LCK RELAY OFF

—

SEC-104

B210A: STRG LCK STATE SW

—

SEC-105

B210B: START CONT RLY ON

—

SEC-109

B210C: START CONT RLY OFF

—

SEC-110

B210D: STARTER RELAY ON

—

SEC-111

B210E: STARTER RELAY OFF

—

SEC-112

B210F: INTRLCK/PNP SW ON

—

SEC-114

B2110: INTRLCK/PNP SW OFF

—

SEC-116

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MWI

THE FUEL GAUGE POINTER DOES NOT MOVE

MWI-135

< SYMPTOM DIAGNOSIS >

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

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.

>> Replace combination meter. Refer to

MWI-145, "Removal and Installation"

CHECK COMBINATION METER OUTPUT SIGNAL

Connect CONSULT-III.

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.

>> Replace combination meter.

CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT

Check the fuel level sensor signal circuit. Refer to

MWI-46, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 4.

>> Repair harness or connector.

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.

>> Replace fuel level sensor unit. Refer to

FL-6, "Removal and Installation"

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.

>> Repair or replace malfunctioning parts.

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MWI-136

< SYMPTOM DIAGNOSIS >

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

CHECK METER CONTROL SWITCH SIGNAL CIRCUIT

Check the meter control switch signal circuit. Refer to

MWI-49, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

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.

>> Replace meter control switch.

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MWI

THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON

MWI-137

< SYMPTOM DIAGNOSIS >

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

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.

>> GO TO 4.

CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT

Check the oil pressure switch signal circuit. Refer to

MWI-52, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair harness or connector.

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.

>> Replace oil pressure switch.

CHECK COMBINATION METER INPUT SIGNAL

Connect CONSULT-III and perform an input signal check for the combination meter. Refer to

MWI-52, "Com-

ponent Function Check"

Is the inspection result normal?

YES

>> Replace combination meter.

>> Replace IPDM E/R. Refer to

PCS-34, "Removal and Installation"

Revision: 2008 October

2009 Murano

MWI-138

< SYMPTOM DIAGNOSIS >

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

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.

>> GO TO 5.

CHECK IPDM E/R OUTPUT VOLTAGE

Turn ignition switch OFF.

Disconnect the oil pressure switch connector.

Turn ignition switch ON.

Check voltage between the oil pressure switch harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 3.

>> GO TO 4.

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"

>> Replace oil pressure switch.

CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT

Check the oil pressure switch signal circuit. Refer to

MWI-52, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 5.

>> Repair harness or connector.

CHECK COMBINATION METER INPUT SIGNAL

Connect CONSULT-III and perform an input signal check for the combination meter. Refer to

MWI-52, "Com-

ponent Function Check"

Is the inspection result normal?

YES

>> Replace combination meter.

>> Replace IPDM E/R. Refer to

PCS-34, "Removal and Installation"

Terminals

Voltage

(Approx.)

(+)

(-)

Oil pressure switch

Ground

Connector

Terminal

F63

12 V

Revision: 2008 October

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MWI

THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING, OR

DOES NOT DISPLAY

MWI-139

< SYMPTOM DIAGNOSIS >

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

CHECK PARKING BRAKE WARNING LAMP OPERATION

Start engine.

Check the operation of the parking brake warning lamp when operating the parking brake.

Is the inspection result normal?

YES

>> Replace combination meter.

>> GO TO 2.

CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT

Turn ignition switch OFF.

Check the parking brake switch signal circuit. Refer to

MWI-54, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair harness or connector.

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.

>> Replace parking brake switch.

Condition

Warning lamp status

When parking brake is applied

When parking brake is released

OFF

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MWI-140

< SYMPTOM DIAGNOSIS >

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

CHECK WASHER LEVEL SWITCH SIGNAL CIRCUIT

Check the washer level switch signal circuit. Refer to

MWI-55, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

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.

>> Replace washer level switch. Refer to

WW-122, "Removal and Installation"

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MWI

THE DOOR OPEN WARNING CONTINUES DISPLAYING, OR DOES NOT DIS-

PLAY

MWI-141

< SYMPTOM DIAGNOSIS >

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

CHECK BCM INPUT/OUTPUT SIGNAL

Connect CONSULT-III and check the BCM input signals. Refer to

DLK-103, "WITH AUTOMATIC BACK

DOOR : Component Function Check"

(with automatic back door) or

DLK-106, "WITHOUT AUTOMATIC

BACK DOOR : Component Function Check"

(without automatic back door).

Is the inspection result normal?

YES

>> GO TO 2.

>> GO TO 3.

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.

>> Replace BCM. Refer to

BCS-96, "Removal and Installation"

CHECK DOOR SWITCH SIGNAL CIRCUIT

Check the door switch signal circuit. Refer to

DLK-103, "WITH AUTOMATIC BACK DOOR : Diagnosis Proce-

dure"

(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.

>> Repair harness or connector.

CHECK DOOR SWITCH

Perform a unit check for the door switch. Refer to

DLK-105, "WITH AUTOMATIC BACK DOOR : Component

Inspection"

(with automatic back door) or

DLK-108, "WITHOUT AUTOMATIC BACK DOOR : Component

Inspection"

(without automatic back door).

Is the inspection result normal?

YES

>> Replace combination meter.

>> Replace applicable door switch. Refer to

DLK-368, "Removal and Installation"

“DOOR W/L”

Door open

: On

Door closed

: Off

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MWI-142

< 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"

CHECK AMBIENT SENSOR SIGNAL CIRCUIT

Check the ambient sensor signal circuit. Refer to

HAC-45, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK A/C AUTO AMP. CONNECTION RECOGNITION SIGNAL CIRCUIT

Check the A/C auto amp. connection recognition signal circuit. Refer to

MWI-56, "Diagnosis Procedure"

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair harness or connector.

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.

>> Replace ambient sensor. Refer to

VTL-25, "Removal and Installation"

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MWI

NORMAL OPERATING CONDITION

MWI-143

< SYMPTOM DIAGNOSIS >

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.

Perform Calibration. Refer to

MWI-31, "De-

scription"

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

MWI-31, "Description"

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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

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