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Murano Cross Cabriolet Z51 (2012 year). Manual - part 66

PCS

IPDM E/R

PCS-17

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

TERMINAL LAYOUT

PHYSICAL VALUES

JPMIA0863ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

(R)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

(L)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

(LG)

Ground

Front wiper LO

Output

Ignition
switch ON

Front wiper switch OFF

0 V

Front wiper switch LO

Battery voltage

(Y)

Ground

Front wiper HI

Output

Ignition
switch ON

Front wiper switch OFF

0 V

Front wiper switch HI

Battery voltage

(GR)

Ground

Tail, license plate, side
marker lamp and illumina-
tions

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(BR)

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

(B)

Ground

—

Ignition switch ON

0 V

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-18

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

(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 stop position

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

0 - 4.8 V

NOTE:

Changes depending to ambient

temperature

(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

(Y)

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

(W)

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

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

IPDM E/R

PCS-19

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

(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

(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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-20

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

(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

(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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

IPDM E/R

PCS-21

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

Fail-safe

INFOID:0000000007563491

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.

(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

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

(L)

Ground

Headlamp LO (LH)

Output

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 ON

Battery voltage

(GR)

Ground

Front fog lamp (LH)

Output

Lighting
switch
2ND

Front fog lamp switch OFF

0 V

Front fog lamp switch ON

Battery voltage

(W)

Ground

Ignition relay power supply

Output

Ignition switch ON

Battery voltage

(L)

Ground

High beam solenoid (RH)

Output

Lighting
switch
2ND or
AUTO

Lighting switch OFF

0 V

Lighting switch HI or PASS

Battery voltage

(G)

Ground

High beam solenoid (LH)

Output

Lighting
switch
2ND or
AUTO

Lighting switch OFF

0 V

Lighting switch HI or PASS

Battery voltage

(R)

Ground

Parking lamp (RH)

Output

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(LG)

Ground

Parking lamp (LH)

Output

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

0 - 4.8 V

NOTE:

Changes depending to ambient

temperature

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

−

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-22

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

If No CAN Communication Is Available With ECM

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 PROTECTION FUNCTION

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 lamp
• License plate lamp
• Side maker lamp
• Illumination
• Tail lamp

• 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 motor

• 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 acti-

vated while the front wiper is set in the INT/AUTO mode and the front wiper motor is operating.

• Returns automatically wiper to stop position when ignition switch is turned ON if fail-safe control is acti-

vated while front wiper motor is operated and wiper stop in the other than stop position.

Front fog lamp

Front fog lamp relay OFF

Horn

Horn relay 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 minutes

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 CrossCabriolet

PCS

IPDM E/R

PCS-23

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

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:0000000007563492

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-27

B2098: IGN RELAY ON

PCS-28

B2099: IGN RELAY OFF

—

PCS-29

B210B: START CONT RLY ON

—

SEC-83

B210C: START CONT RLY OFF

—

SEC-84

B210D: STARTER RELAY ON

—

SEC-85

B210E: STARTER RELAY OFF

—

SEC-86

B210F: INTRLCK/PNP SW ON

—

SEC-88

B2110: INTRLCK/PNP SW OFF

—

SEC-90

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-24

< WIRING DIAGRAM >

[IPDM E/R]

IPDM E/R

WIRING DIAGRAM

IPDM E/R

Wiring Diagram

INFOID:0000000007563493

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

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JRMWC5444GB

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

IPDM E/R

PCS-25

< WIRING DIAGRAM >

[IPDM E/R]

JRMWC5445GB

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-26

< WIRING DIAGRAM >

[IPDM E/R]

IPDM E/R

JRMWC5446GB

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

U1000 CAN COMM CIRCUIT

PCS-27

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000007563494

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control unit, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to

LAN-28, "CAN COMMUNICATION SYSTEM : CAN Communica-

tion Signal Chart"

DTC Logic

INFOID:0000000007563495

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007563496

PERFORM SELF DIAGNOSTIC

Turn the ignition switch ON and wait for 2 seconds or more.

Check “Self Diagnostic Result” of IPDM E/R.

Is DTC “U1000” displayed?

YES

>> Refer to

LAN-15, "Trouble Diagnosis Flow Chart"

>> Refer to

GI-40, "Intermittent Incident"

DTC

CONSULT display de-

scription

DTC Detection Condition

Possible cause

U1000

CAN COMM CIRCUIT

When IPDM E/R cannot communicate CAN
communication signal continuously for 2
seconds or more

CAN communication system

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-28

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

B2098 IGNITION RELAY ON STUCK

B2098 IGNITION RELAY ON STUCK

Description

INFOID:0000000007563497

• IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-

munication.

• Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/

h (2.5 MPH) or less.

• Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5

MPH) or when an abnormal condition occurs in CAN communication from the combination meter (Emer-
gency OFF)

- Press and hold the push-button ignition switch for 2 seconds or more.
- Press the push-button ignition switch 3 times within 1.5 seconds.
NOTE:
The ignition relay does not turn ON for 3 seconds after emergency OFF even if the push-button ignition switch
is pressed.

DTC Logic

INFOID:0000000007563498

DTC DETECTION LOGIC

PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON.

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT.

Is DTC detected?

YES

>> Refer to

PCS-28, "Diagnosis Procedure"

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000007563499

PERFORM SELF DIAGNOSIS

Erase “Self Diagnostic Result” of IPDM E/R.

Turn the ignition switch OFF, and wait for 1 second or more.

Turn the ignition switch ON. Check “Self Diagnostic Result” again.

Is DTC “B2098” displayed?

YES

>> Replace IPDM E/R. Refer to

PCS-31, "Removal and Installation"

>> Refer to

GI-40, "Intermittent Incident"

DTC

CONSULT display

description

DTC Detection Condition

Possible causes

B2098

IGN RELAY ON

The ignition relay ON is detected for 1 second at ignition switch OFF
(CPU monitors the status at the contact and excitation coil circuits of
the ignition relay inside it)

Ignition relay malfunction

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

B2099 IGNITION RELAY OFF STUCK

PCS-29

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

B2099 IGNITION RELAY OFF STUCK

Description

INFOID:0000000007563500

• IPDM E/R operates the ignition relay when it receives an ignition switch ON signal from BCM via CAN com-

munication.

• Turn the ignition relay OFF by pressing the push-button ignition switch once when the vehicle speed is 4 km/

h (2.5 MPH) or less.

• Turn the ignition relay OFF with the following operation when the vehicle speed is more than 4 km/h (2.5

MPH) or when an abnormal condition occurs in CAN communication from the combination meter (Emer-
gency OFF)

DTC Logic

INFOID:0000000007563501

DTC DETECTION LOGIC

NOTE:

When IPDM E/R power supply voltage is low (Approx. 7 - 8 V for about 1 second), the “DTC: B2099” may be detected.

PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON.

Check DTC in “Self Diagnostic Result” mode of “IPDM E/R” using CONSULT.

Is DTC detected?

YES

>> Refer to

PCS-29, "Diagnosis Procedure"

>> INSPECTION END.

Diagnosis Procedure

INFOID:0000000007563502

PERFORM SELF DIAGNOSIS

Erase “Self Diagnostic Result”.

Turn the ignition switch OFF.

Turn the ignition switch ON. Check “Self Diagnostic Result” again.

Is DTC “B2099” displayed?

YES

>> Replace IPDM E/R. Refer to

PCS-31, "Removal and Installation"

>> Refer to

GI-40, "Intermittent Incident"

DTC

CONSULT display

description

DTC Detection Condition

Possible causes

B2099

IGN RELAY OFF

The ignition relay OFF is detected for 1 second at ignition switch ON
(CPU monitors the status at the contact and excitation coil circuits of
the ignition relay inside it)

Ignition relay malfunction

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-30

< DTC/CIRCUIT DIAGNOSIS >

[IPDM E/R]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000007563503

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

>> GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Turn the ignition switch OFF.

Disconnect IPDM E/R connector.

Check voltage between IPDM E/R harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3.

>> Repair the harness or connector.

CHECK GROUND CIRCUIT

Check continuity between IPDM E/R harness connectors and the ground.

Does continuity exist?

YES

>> INSPECTION END

>> Repair the harness or connector.

Signal name

Fuses and fusible link No.

Battery power supply

E (80 A)

C (60 A)

I (40 A)

50 (15 A)

51 (15 A)

(+)

(

−

)

Voltage

(Approx.)

IPDM E/R

Connector

Terminal

Ground

Battery voltage

E10

IPDM E/R

Ground

Continuity

Connector

Terminal

E10

Existed

E11

Revision: 2013 February

2012 Murano CrossCabriolet

PCS

IPDM E/R

PCS-31

< REMOVAL AND INSTALLATION >

[IPDM E/R]

REMOVAL AND INSTALLATION

IPDM E/R

Exploded View

INFOID:0000000007563504

Removal and Installation

INFOID:0000000007563505

NOTE:
To prevent damage to the parts, IPDM E/R integrated relays cannot be removed.

REMOVAL

Disconnect the battery cable from the negative terminal.

Remove the relay box cover.

Disconnect the harness connector form the IPDM E/R (1).

Press the pawl (A) and remove the IPDM E/R from relay box.

INSTALLATION

Install in the reverse order of removal.

Relay box cover

IPDM E/R

JPMIA0868ZZ

JPMIA0869ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

PCS-32

< PRECAUTION >

[POWER DISTRIBUTION SYSTEM]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000007563506

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• 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

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Revision: 2013 February

2012 Murano CrossCabriolet

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