Content .. 58 59 60 61 ..

Nissan Murano Z51 (2012 year). Manual - part 60

MWI-72

< ECU DIAGNOSIS INFORMATION >

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

(SB)

Ground

Fuel pump power supply

Output

Approximately 1 second or more after
turning the ignition switch ON

0 V

• Approximately 1 second after turning

the ignition switch ON

• Engine running

Battery voltage

(W)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(R)

Ground

Front wiper auto stop

Input

Ignition
switch ON

Front wiper stop position

0 V

Any position other than
front wiper stop position

Battery voltage

(Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(L)

Ground

Ambient sensor ground

Output

Ignition switch ON

0 V

(O)

Ground

Ambient sensor

Input

Ignition switch ON
NOTE:
Changes depending to ambient tem-
perature

(SB)

Ground

Refrigerant pressure sen-
sor ground

Output

Engine
running

• Warm-up condition
• Idle speed

0 V

(GR)

Ground

Refrigerant pressure sen-
sor

Output

Engine
running

• Warm-up condition
• Both A/C switch and

blower fan motor switch
ON
(Compressor operates)

1.0 - 4.0 V

(G)

Ground

Refrigerant pressure sen-
sor power supply

Input

Ignition switch OFF

0 V

Ignition switch ON

5.0 V

(GR)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(W)

Ground

Ignition relay monitor

Input

Ignition switch OFF or ACC

Battery voltage

Ignition switch ON

0 V

(SB)

Ground

Push-button ignition
switch

Input

Press the push-button ignition switch

0 V

Release the push-button ignition switch

Battery voltage

(BR)

Ground

Starter relay control

Input

Ignition
switch ON

Selector lever in any posi-
tion other than P or N

0 V

Selector lever P or N

Battery voltage

(O)

Ground

Cooling fan relay-3 control

Input

Cooling fan stopped

Battery voltage

Cooling fan at HI operation

0 V

(P)

Ground

Cooling fan relay-1 power
supply

Input

Cooling fan stopped

Battery voltage

Cooling fan at LO operation

6.0 V

(G)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

JSNIA0014GB

Revision: 2013 February

2012 MURANO

MWI

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

MWI-73

< ECU DIAGNOSIS INFORMATION >

(GR)

Ground

Cooling fan relay-1 power
supply

Output

Cooling fan not operating

0 V

Cooling fan at LO operation

6.0 V

(P)

—

CAN-L

Input/

Output

—

(L)

—

CAN-H

Input/

Output

—

(B)

Ground

—

Ignition switch ON

0 V

(SB)

Ground

Cooling fan relay-2 control

Input

Cooling fan stopped

Battery voltage

• Cooling fan MID operating
• Cooling fan HI operating

0 V

(Y)

Ground

CVT shift selector
(Detention switch)

Input

Ignition
switch ON

• Press the selector but-

ton (selector lever P)

• Selector lever in any po-

sition other than P

Battery voltage

Release the selector but-
ton (selector lever P)

0 V

(W)

Ground

Horn relay control

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

(O)

Ground

Horn switch

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

(BR)

Ground

Starter relay control

Input

Ignition
switch ON

Selector lever in any posi-
tion other than P or N

0 V

Selector lever P or N

Battery voltage

(W)

Ground

A/C relay power supply

Output

Engine
running

A/C switch OFF

0 V

A/C switch ON
(A/C compressor is oper-
ating)

Battery voltage

(R/B)

Ground

ECM relay power supply

Output

Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning igni-
tion switch OFF)

Battery voltage

(LG)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(Y/G)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(R/W)

Ground

ECM relay power supply

Output

Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning igni-
tion switch OFF)

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

Revision: 2013 February

2012 MURANO

MWI-74

< ECU DIAGNOSIS INFORMATION >

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

(G/W)

Ground

Throttle control motor re-
lay power supply

Output

Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning igni-
tion switch OFF)

Battery voltage

(W/L)

Ground

ECM power supply

Output

Ignition switch OFF

Battery voltage

(R/Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(O)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

(W/B)

Ground

ECM relay control

Output

Ignition switch OFF
(More than a few seconds after turning
ignition switch OFF)

Battery voltage

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning igni-
tion switch OFF)

0 - 1.5 V

(O)

Ground

Throttle control motor re-
lay control

Output

Ignition switch ON

→

OFF

0 -1.0 V

↓

Battery voltage

↓

0 V

Ignition switch ON

0 - 1.0 V

(R/B)

Ground

Starter relay control

Input

Ignition
switch ON

Selector lever in any posi-
tion other than P or N

0 V

Selector lever P or N

Battery voltage

(LG)

Ground

Oil pressure switch

Input

Ignition
switch ON

Engine stopped

0 V

Engine running

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

Revision: 2013 February

2012 MURANO

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

MWI-75

< ECU DIAGNOSIS INFORMATION >

(SB)

Ground

Power generation com-
mand signal

Output

Ignition switch ON

6.3 V

40% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”

3.8 V

80% is set on “ACTIVE TEST”, “AL-
TERNATOR DUTY” of “ENGINE”

1.4 V

(GR)

Ground

Fuel pump relay control

Output

• Approximately 1 second after turning

the ignition switch ON

• Engine running

0 - 1.5 V

Approximately 1 second or more after
turning the ignition switch ON

Battery voltage

(B)

Ground

Starter motor

Output

At engine cranking

Battery voltage

(Y)

Ground

Headlamp LO (RH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

(L)

Ground

Headlamp LO (LH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

(SB)

Ground

Front fog lamp (RH)

Output

Lighting
switch
2ND

Front fog lamp switch OFF

0 V

• Front fog lamp switch

• Daytime running light

activated (Only for Can-
ada)

Battery voltage

(GR)

Ground

Front fog lamp (LH)

Output

Lighting
switch
2ND

Front fog lamp switch OFF

0 V

• Front fog lamp switch

• Daytime running light

activated (Only for Can-
ada)

Battery voltage

(W)

Ground

Washer pump power sup-
ply

Output

Ignition switch ON

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

Revision: 2013 February

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MWI-76

< ECU DIAGNOSIS INFORMATION >

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

: AWD models only

(L)

Ground

Headlamp HI (RH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

• Lighting switch HI
• Lighting switch PASS

Battery voltage

(G)

Ground

Headlamp HI (LH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

• Lighting switch HI
• Lighting switch PASS

Battery voltage

(R)

Ground

Parking lamp (RH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(LG)

Ground

Parking lamp (LH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(BR)

Ground

Ambient sensor ground

Input

Ignition switch ON

0 V

100

(SB)

Ground

Ambient sensor

Output

Ignition switch ON
NOTE:
Changes depending to ambient tem-
perature

101

(L)

Ground

Refrigerant pressure sen-
sor ground

Input

Engine
running

• Warm-up condition
• Idle speed

0 V

102

(B)

Ground

Refrigerant pressure sen-
sor

Input

Engine
running

• Warm-up condition
• Both A/C switch and

blower fan motor switch
ON
(Compressor operates)

1.0 - 4.0 V

103

(P)

Ground

Refrigerant pressure sen-
sor power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

5.0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

JSNIA0014GB

Revision: 2013 February

2012 MURANO

MWI

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

MWI-77

< ECU DIAGNOSIS INFORMATION >

Wiring Diagram - IPDM E/R -

INFOID:0000000007793822

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JRMWC5029GB

Revision: 2013 February

2012 MURANO

MWI-78

< ECU DIAGNOSIS INFORMATION >

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

JRMWC5030GB

Revision: 2013 February

2012 MURANO

MWI

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

MWI-79

< ECU DIAGNOSIS INFORMATION >

Fail-safe

INFOID:0000000007793823

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

JRMWC5031GB

Revision: 2013 February

2012 MURANO

MWI-80

< ECU DIAGNOSIS INFORMATION >

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

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

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”

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.

Revision: 2013 February

2012 MURANO

MWI

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

MWI-81

< ECU DIAGNOSIS INFORMATION >

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:0000000007793824

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

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

B210B: START CONT RLY ON

—

SEC-79

B210C: START CONT RLY OFF

—

SEC-80

B210D: STARTER RELAY ON

—

SEC-81

B210E: STARTER RELAY OFF

—

SEC-82

B210F: INTRLCK/PNP SW ON

—

SEC-84

B2110: INTRLCK/PNP SW OFF

—

SEC-86

Revision: 2013 February

2012 MURANO

MWI-82

< SYMPTOM DIAGNOSIS >

THE FUEL GAUGE POINTER DOES NOT MOVE

SYMPTOM DIAGNOSIS

THE FUEL GAUGE POINTER DOES NOT MOVE

Description

INFOID:0000000007543147

Fuel gauge needle will not move from a certain position.

Diagnosis Procedure

INFOID:0000000007543148

CONDUCTING THE COMBINATION METER SELF-DIAGNOSIS MODE

Perform the self-diagnosis mode of combination meter, and then check that the fuel gauge operates normally.
Refer to

MWI-34, "Diagnosis Description"

Is the inspection result normal?

YES

>> GO TO 2.

>> Replace the combination meter.

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

>> GO TO 3.

>> Repair or replace malfunctioning part.

CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT

Check the fuel level sensor signal circuit. Refer to

MWI-46, "Component Function Check"

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-44, "Intermittent Incident"

>> Repair or replace malfunctioning parts.

Revision: 2013 February

2012 MURANO

MWI

THE METER CONTROL SWITCH IS INOPERATIVE

MWI-83

< SYMPTOM DIAGNOSIS >

THE METER CONTROL SWITCH IS INOPERATIVE

Description

INFOID:0000000007543149

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:0000000007543150

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.

Revision: 2013 February

2012 MURANO

MWI-84

< SYMPTOM DIAGNOSIS >

THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON

THE OIL PRESSURE WARNING LAMP DOES NOT TURN ON

Description

INFOID:0000000007543151

The oil pressure warning lamp stays off when the ignition switch is turned ON.

Diagnosis Procedure

INFOID:0000000007543152

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 and perform an input signal check for the combination meter. Refer to

MWI-52, "Compo-

nent Function Check"

Is the inspection result normal?

YES

>> Replace combination meter.

>> Replace IPDM E/R. Refer to

PCS-34, "Removal and Installation"

Revision: 2013 February

2012 MURANO

MWI

THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF

MWI-85

< SYMPTOM DIAGNOSIS >

THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF

Description

INFOID:0000000007543153

The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).

Diagnosis Procedure

INFOID:0000000007543154

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 and perform an input signal check for the combination meter. Refer to

MWI-52, "Compo-

nent 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: 2013 February

2012 MURANO

MWI-86

< SYMPTOM DIAGNOSIS >

THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING, OR

DOES NOT DISPLAY

THE PARKING BRAKE RELEASE WARNING CONTINUES DISPLAYING,
OR DOES NOT DISPLAY

Description

INFOID:0000000007543155

• 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:0000000007543156

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

MWI-54, "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

Revision: 2013 February

2012 MURANO

MWI

THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR DOES

NOT DISPLAY

MWI-87

< SYMPTOM DIAGNOSIS >

THE LOW WASHER FLUID WARNING CONTINUES DISPLAYING, OR
DOES NOT DISPLAY

Description

INFOID:0000000007543157

• 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:0000000007543158

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-103, "Removal and Installation"

Revision: 2013 February

2012 MURANO

Content .. 58 59 60 61 ..