Nissan Murano Z51 (2008 year). Manual

MWI

BCM (BODY CONTROL MODULE)

MWI-115

< ECU DIAGNOSIS >

Display contents of CONSULT

Fail-safe

Cancellation

B2013: ID DISCORD BCM-S/L

Inhibit engine cranking

Erase DTC

B2014: CHAIN OF S/L-BCM

Inhibit engine cranking

Erase DTC

B2190: NATS ANTENNA AMP

Inhibit engine cranking

Erase DTC

B2191: DIFFERENCE OF KEY

Inhibit engine cranking

Erase DTC

B2192: ID DISCORD BCM-ECM

Inhibit engine cranking

Erase DTC

B2193: CHAIN OF BCM-ECM

Inhibit engine cranking

Erase DTC

B2195: ANTI SCANNING

Inhibit engine cranking

Ignition switch ON

→

OFF

B2557: VEHICLE SPEED

Inhibit steering lock

When normal vehicle speed signals are received from ABS actua-
tor and electric unit (control unit) for 500 ms

B2560: STARTER CONT RELAY

Inhibit engine cranking

500 ms after the following CAN signal communication status be-
comes consistent
• Starter control relay signal
• Starter relay status signal

B2601: SHIFT POSITION

Inhibit steering lock

500 ms after the following signal reception status becomes consis-
tent
• Selector lever P position switch signal
• P range signal (CAN)

B2602: SHIFT POSITION

Inhibit steering lock

5 seconds after the following BCM recognition conditions are ful-
filled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery

voltage)

• Vehicle speed: 4 km/h (2.5 MPH) or more

B2603: SHIFT POSI STATUS

Inhibit steering lock

500 ms after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery

voltage)

• Selector lever P/N position signal: Except P and N positions (0 V)

B2604: PNP SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are
fulfilled
• Status 1
- Ignition switch is in the ON position
- Selector lever P/N position signal: P and N position (battery volt-

age)

- P range signal or N range signal (CAN): ON
• Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: Except P and N positions (0 V)
- P range signal and N range signal (CAN): OFF

B2605: PNP SW

Inhibit steering lock

500 ms after any of the following BCM recognition conditions are
fulfilled
• Ignition switch is in the ON position
- Power position: IGN
- Selector lever P/N position signal: Except P and N positions (0 V)
- Interlock/PNP switch signal (CAN): OFF
• Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: P or N position (battery volt-

age)

- PNP switch signal (CAN): ON

B2606: S/L RELAY

Inhibit engine cranking

500 ms after the following CAN signal communication status be-
comes consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)

Revision: 2008 October

2009 Murano

MWI-116

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

HIGH FLASHER OPERATION

BCM detects the turn signal lamp circuit status by the current value.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal
lamp operating.
NOTE:
The blinking speed is normal while activating the hazard warning lamp.

FAIL-SAFE CONTROL BY RAIN SENSOR MALFUNCTION

• BCM judges the rain sensor serial link error by the rain sensor serial link condition and detects the rain sen-

sor malfunction by rain sensor malfunction signal.

• When BCM detects the rain sensor serial link error or the rain sensor malfunction while front wiper AUTO

operation, BCM operates a fail-safe control.

NOTE:
If rain sensor malfunction is detected when ignition switch is turned OFF

⇒

ON and front wiper switch is INT/

AUTO position, BCM operates a fail-safe control.

REAR WIPER MOTOR PROTECTION

BCM detects the rear wiper stopping position according to the rear wiper stop position signal.
When the rear wiper stop position signal does not change for more than 5 seconds while driving the rear
wiper, BCM stops power supply to protect the rear wiper motor.

Condition of cancellation

More than 1 minute is passed after the rear wiper stop.

B2607: S/L RELAY

Inhibit engine cranking

500 ms after the following CAN signal communication status be-
comes consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)

B2608: STARTER RELAY

Inhibit engine cranking

500 ms after the following signal communication status becomes
consistent
• Starter motor relay control signal
• Starter relay status signal (CAN)

B2609: S/L STATUS

• Inhibit engine cranking
• Inhibit steering lock

When the following steering lock conditions agree
• BCM steering lock control status
• Steering lock condition No. 1 signal status
• Steering lock condition No. 2 signal status

B260A: IGNITION RELAY

Inhibit engine cranking

500 ms after the following conditions are fulfilled
• IGN relay (IPDM E/R) control signal: OFF (Battery voltage)
• Ignition ON signal (CAN to IPDM E/R): OFF (Request signal)
• Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal)

B260F: ENG STATE SIG LOST

Maintains the power supply
position attained at the time
of DTC detection

When any of the following conditions are fulfilled
• Power position changes to ACC
• Receives engine status signal (CAN)

B2612: S/L STATUS

• Inhibit engine cranking
• Inhibit steering lock

When any of the following conditions are fulfilled
• Steering lock unit status signal (CAN) is received normally
• The BCM steering lock control status matches the steering lock

status recognized by the steering lock unit status signal (CAN
from IPDM E/R)

B2617: STARTER RELAY CIRC

Inhibit engine cranking

1 second after the starter motor relay control inside BCM becomes
normal

B2618: BCM

Inhibit engine cranking

1 second after the ignition relay (IPDM E/R) control inside BCM be-
comes normal

B2619: BCM

Inhibit engine cranking

1 second after the steering lock unit power supply output control in-
side BCM becomes normal

B261E: VEHICLE TYPE

Inhibit engine cranking

BCM initialization

B26E9: S/L STATUS

• Inhibit engine cranking
• Inhibit steering lock

When BCM transmits the LOCK request signal to steering lock unit,
and receives LOCK response signal from steering lock unit, the fol-
lowing conditions are fulfilled
• Steering condition No. 1 signal: LOCK (0V)
• Steering condition No. 2 signal: LOCK (Battery voltage)

Display contents of CONSULT

Fail-safe

Cancellation

Revision: 2008 October

2009 Murano

MWI

BCM (BODY CONTROL MODULE)

MWI-117

< ECU DIAGNOSIS >

Turn rear wiper switch OFF.

Operate the rear wiper switch or rear washer switch.

DTC Inspection Priority Chart

INFOID:0000000003470015

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

Priority

DTC

B2562: LOW VOLTAGE

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

• B2190: NATS ANTENNA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
• B2195: ANTI SCANNING

• B2013: ID DISCORD BCM-S/L
• B2014: CHAIN OF S/L-BCM
• B2553: IGNITION RELAY
• B2555: STOP LAMP
• B2556: PUSH-BTN IGN SW
• B2557: VEHICLE SPEED
• B2560: STARTER CONT RELAY
• B2601: SHIFT POSITION
• B2602: SHIFT POSITION
• B2603: SHIFT POSI STATUS
• B2604: PNP SW
• B2605: PNP SW
• B2606: S/L RELAY
• B2607: S/L RELAY
• B2608: STARTER RELAY
• B2609: S/L STATUS
• B260A: IGNITION RELAY
• B260B: STEERING LOCK UNIT
• B260C: STEERING LOCK UNIT
• B260D: STEERING LOCK UNIT
• B260F: ENG STATE SIG LOST
• B2612: S/L STATUS
• B2614: ACC RELAY CIRC
• B2615: BLOWER RELAY CIRC
• B2616: IGN RELAY CIRC
• B2617: STARTER RELAY CIRC
• B2618: BCM
• B2619: BCM
• B261A: PUSH-BTN IGN SW
• B261E: VEHICLE TYPE
• B26E9: S/L STATUS
• B26EA: KEY REGISTRATION
• C1729: VHCL SPEED SIG ERR
• U0415: VEHICLE SPEED SIG

Revision: 2008 October

2009 Murano

MWI-118

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

DTC Index

INFOID:0000000003470016

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 Freeze Frame Data. For details of Freeze Frame Data, refer to

BCS-17, "COM-

MON ITEM : CONSULT-III Function (BCM - COMMON ITEM)"

• C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL
• C1734: CONTROL UNIT

• B2621: INSIDE ANTENNA
• B2622: INSIDE ANTENNA
• B2623: INSIDE ANTENNA

Priority

DTC

CONSULT display

Fail-safe

Freeze Frame

Data

•Vehicle Speed

•Odo/Trip Meter

•Vehicle Condi-

tion

Intelligent Key

warning lamp ON

Tire pressure

monitor warning

lamp ON

Reference

page

No DTC is detected.
further testing
may be required.

—

U1000: CAN COMM CIRCUIT

—

BCS-40

U1010: CONTROL UNIT (CAN)

—

BCS-41

U0415: VEHICLE SPEED SIG

—

BCS-42

B2013: ID DISCORD BCM-S/L

—

SEC-55

B2014: CHAIN OF S/L-BCM

—

SEC-56

B2190: NATS ANTENNA AMP

—

SEC-47

B2191: DIFFERENCE OF KEY

—

SEC-50

B2192: ID DISCORD BCM-ECM

—

SEC-51

B2193: CHAIN OF BCM-ECM

—

SEC-53

B2195: ANTI SCANNING

—

SEC-54

B2553: IGNITION RELAY

—

PCS-49

Revision: 2008 October

2009 Murano

MWI

BCM (BODY CONTROL MODULE)

MWI-119

< ECU DIAGNOSIS >

B2555: STOP LAMP

—

SEC-59

B2556: PUSH-BTN IGN SW

—

SEC-61

B2557: VEHICLE SPEED

—

SEC-63

B2560: STARTER CONT RELAY

—

SEC-64

B2562: LOW VOLTAGE

—

BCS-43

B2601: SHIFT POSITION

—

SEC-65

B2602: SHIFT POSITION

—

SEC-68

B2603: SHIFT POSI STATUS

—

SEC-70

B2604: PNP SW

—

SEC-73

B2605: PNP SW

—

SEC-75

B2606: S/L RELAY

—

SEC-77

B2607: S/L RELAY

—

SEC-78

B2608: STARTER RELAY

—

SEC-80

B2609: S/L STATUS

—

SEC-82

B260A: IGNITION RELAY

—

PCS-51

B260B: STEERING LOCK UNIT

—

SEC-86

B260C: STEERING LOCK UNIT

—

SEC-87

B260D: STEERING LOCK UNIT

—

SEC-88

B260F: ENG STATE SIG LOST

—

SEC-89

B2612: S/L STATUS

—

SEC-92

B2614: ACC RELAY CIRC

—

PCS-53

B2615: BLOWER RELAY CIRC

—

PCS-56

B2616: IGN RELAY CIRC

—

PCS-59

B2617: STARTER RELAY CIRC

—

SEC-96

B2618: BCM

—

PCS-62

B2619: BCM

—

SEC-98

B261A: PUSH-BTN IGN SW

—

SEC-99

B261E: VEHICLE TYPE

(Turn ON for 15

seconds)

—

SEC-102

B2621: INSIDE ANTENNA

—

DLK-95

B2622: INSIDE ANTENNA

—

DLK-97

B2623: INSIDE ANTENNA

—

DLK-99

B26E9: S/L STATUS

(Turn ON for 15

seconds)

—

SEC-90

B26EA: KEY REGISTRATION

—

(Turn ON for 15

seconds)

—

SEC-91

C1704: LOW PRESSURE FL

—

WT-16

C1705: LOW PRESSURE FR

—

C1706: LOW PRESSURE RR

—

C1707: LOW PRESSURE RL

—

CONSULT display

Fail-safe

Freeze Frame

Data

•Vehicle Speed

•Odo/Trip Meter

•Vehicle Condi-

tion

Intelligent Key

warning lamp ON

Tire pressure

monitor warning

lamp ON

Reference

page

Revision: 2008 October

2009 Murano

MWI-120

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

C1708: [NO DATA] FL

—

WT-18

C1709: [NO DATA] FR

—

C1710: [NO DATA] RR

—

C1711: [NO DATA] RL

—

C1712: [CHECKSUM ERR] FL

—

WT-21

C1713: [CHECKSUM ERR] FR

—

C1714: [CHECKSUM ERR] RR

—

C1715: [CHECKSUM ERR] RL

—

C1716: [PRESSDATA ERR] FL

—

WT-24

C1717: [PRESSDATA ERR] FR

—

C1718: [PRESSDATA ERR] RR

—

C1719: [PRESSDATA ERR] RL

—

C1720: [CODE ERR] FL

—

WT-26

C1721: [CODE ERR] FR

—

C1722: [CODE ERR] RR

—

C1723: [CODE ERR] RL

—

C1724: [BATT VOLT LOW] FL

—

WT-29

C1725: [BATT VOLT LOW] FR

—

C1726: [BATT VOLT LOW] RR

—

C1727: [BATT VOLT LOW] RL

—

C1729: VHCL SPEED SIG ERR

—

WT-32

C1734: CONTROL UNIT

—

WT-33

CONSULT display

Fail-safe

Freeze Frame

Data

•Vehicle Speed

•Odo/Trip Meter

•Vehicle Condi-

tion

Intelligent Key

warning lamp ON

Tire pressure

monitor warning

lamp ON

Reference

page

Revision: 2008 October

2009 Murano

MWI

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

MWI-121

< ECU DIAGNOSIS >

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

Reference Value

INFOID:0000000003470019

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

MOTOR FAN REQ

Engine idle speed

Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.

1/2/3/4

AC COMP REQ

Engine running

A/C switch OFF

Off

A/C switch ON
(Compressor is operating)

TAIL&CLR REQ

Lighting switch OFF

Off

Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated)

HL LO REQ

Lighting switch OFF

Off

Lighting switch 2ND HI or AUTO (Light is illuminated)

HL HI REQ

Lighting switch OFF

Off

Lighting switch HI

FR FOG REQ

Lighting switch 2ND or
AUTO (Light is illuminated)

Front fog lamp switch OFF

Off

• Front fog lamp switch ON
• Daytime running light activated

(Only for Canada)

FR WIP REQ

Ignition switch ON

Front wiper switch OFF

Stop

Front wiper switch INT

1LOW

Front wiper switch LO

Low

Front wiper switch HI

WIP AUTO STOP

Ignition switch ON

Front wiper stop position

STOP P

Any position other than front wiper
stop position

ACT P

WIP PROT

Ignition switch ON

Front wiper operates normally

Off

Front wiper stops at fail-safe opera-
tion

BLOCK

IGN RLY1 -REQ

Ignition switch OFF or ACC

Off

Ignition switch ON

IGN RLY

Ignition switch OFF or ACC

Off

Ignition switch ON

PUSH SW

Release the push-button ignition switch

Off

Press the push-button ignition switch

INTER/NP SW

Ignition switch ON

Selector lever in any position other
than P or N

Off

Selector lever in P or N position

ST RLY CONT

Ignition switch ON

Off

At engine cranking

IHBT RLY -REQ

Ignition switch ON

Off

At engine cranking

Revision: 2008 October

2009 Murano

MWI-122

< ECU DIAGNOSIS >

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

ST/INHI RLY

Ignition switch ON

Off

At engine cranking

INHI ON

→

ST ON

The status of starter relay or starter control relay cannot be recognized by
the battery voltage malfunction, etc. when the starter relay is ON and the
starter control relay is OFF

UNKWN

DETENT SW

Ignition switch ON

• Press the selector button with se-

lector lever in P position

• Selector lever in any position oth-

er than P

Off

Release the selector button with selector lever in P position

S/L RLY -REQ

None of the conditions below are present

Off

• Open the driver door after the ignition switch is turned OFF (for a few

seconds)

• Press the push-button ignition switch when the steering lock is activat-

S/L STATE

Steering lock is activated

LOCK

Steering lock is deactivated

UNLOCK

[DTC: B210A] is detected

UNKWN

DTRL REQ

NOTE:
The item is indicated, but not monitored.

Off

OIL P SW

Ignition switch OFF, ACC or engine running

Open

Ignition switch ON

HOOD SW

NOTE:
The item is indicated, but not monitored.

Off

HL WASHER REQ

NOTE:
The item is indicated, but not monitored.

Off

THFT HRN REQ

Not operating

Off

• Panic alarm is activated
• Horn is activated with VEHICLE SECURITY (THEFT WARNING) SYS-

TEM

HORN CHIRP

Not operating

Off

• Door locking with Intelligent Key (horn chirp mode)
• Door locking with key fob (horn chirp mode)

CRNRNG LMP REQ

NOTE:
The item is indicated, but not monitored.

Off

Monitor Item

Condition

Value/Status

Revision: 2008 October

2009 Murano

MWI

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

MWI-123

< ECU DIAGNOSIS >

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 lamps &
illuminations

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

Revision: 2008 October

2009 Murano

MWI-124

< ECU DIAGNOSIS >

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

(P)

Ground

Steering lock unit power
supply

Output

Ignition
switch
OFF

A few seconds after open-
ing the driver door

Battery voltage

Ignition
switch
LOCK

Press the push-button ig-
nition switch

Battery voltage

Ignition switch ACC or ON

0 V

(B)

Ground

—

Ignition switch ON

0 V

(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

(L/Y)

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

26*

(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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

JSNIA0014GB

Revision: 2008 October

2009 Murano

MWI

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

MWI-125

< ECU DIAGNOSIS >

(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

(V)

Ground

Steering lock unit condi-
tion-1

Input

Steering lock is activated

0 V

Steering lock is deactivated

Battery voltage

(G)

Ground

Steering lock unit condi-
tion-2

Input

Steering lock is activated

Battery voltage

Steering lock is deactivated

0 V

(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

(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

Control device
(Detention switch)

Input

Ignition
switch ON

Press the selector button
(selector lever P)

Battery voltage

• Selector lever in any po-

sition other than P

• Release the selector

button (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

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/

Output

−

Revision: 2008 October

2009 Murano

MWI-126

< ECU DIAGNOSIS >

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

(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

(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: 2008 October

2009 Murano

MWI

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

MWI-127

< ECU DIAGNOSIS >

(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: 2008 October

2009 Murano

MWI-128

< ECU DIAGNOSIS >

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

(R)

Ground

Headlamp aiming motor
(RH)

Output

Ignition
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

(L)

Ground

Headlamp aiming motor
(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: 2008 October

2009 Murano

Nissan Murano Z51 (2008 year). Manual - part 274