Nissan Murano. Manual - part 1509

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< ECU DIAGNOSIS INFORMATION >

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

IHBT RLY -REQ

Ignition switch ON

Off

At engine cranking

On

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

On

S/L RLY -REQ

NOTE:
The item is indicated, but not monitored.

Off

S/L STATE

NOTE:
The item is indicated, but not monitored.

UNLOCK

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

Close

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

On

HORN CHIRP

Not operating

Off

Door locking with Intelligent Key (horn chirp mode)

On

CRNRNG LMP REQ

NOTE:
The item is indicated, but not monitored.

Off

Monitor Item

Condition

Value/Status

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

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< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

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A

B

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N

O

P

TERMINAL LAYOUT

PHYSICAL VALUES

JPMIA0863ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

1

(R)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

2

(L)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

4

(LG)

Ground

Front wiper LO

Output

Ignition 
switch ON

Front wiper switch OFF

0 V

Front wiper switch LO

Battery voltage

5

(Y)

Ground

Front wiper HI

Output

Ignition 
switch ON

Front wiper switch OFF

0 V

Front wiper switch HI

Battery voltage

7

(GR)

Ground

Tail, license plate lamps & 
illuminations

Output

Ignition 
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

10

(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

12

(B)

Ground

Ground

—

Ignition switch ON

0 V

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< ECU DIAGNOSIS INFORMATION >

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

13

(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

15

(W)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

16

(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

19

(Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

20

(L)

Ground

Ambient sensor ground

Output

Ignition switch ON

0 V

21

(O)

Ground

Ambient sensor 

Input

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

22

(SB)

Ground

Refrigerant pressure sen-
sor ground

Output

Engine 
running

• Warm-up condition
• Idle speed

0 V

23

(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

24

(G)

Ground

Refrigerant pressure sen-
sor power supply

Input

Ignition switch OFF

0 V

Ignition switch ON

5.0 V

25

(GR)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

26

*1

(Y)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

27

(W)

Ground

Ignition relay monitor

Input

Ignition switch OFF or ACC

Battery voltage

Ignition switch ON

0 V

28

(SB)

Ground

Push-button ignition 
switch

Input

Press the push-button ignition switch

0 V

Release the push-button ignition switch

Battery voltage

30

(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

34

(O)

Ground

Cooling fan relay-3 control

Input

Cooling fan stopped

Battery voltage

Cooling fan at HI operation

0 V

35

(P)

Ground

Cooling fan relay-1 power 
supply

Input

Cooling fan stopped

Battery voltage

Cooling fan at LO operation

6.0 V

36

(G)

Ground

Battery power supply

Input

Ignition switch OFF

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

−

JSNIA0014GB

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

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< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

M

A

B

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N

O

P

38

(GR)

Ground

Cooling fan relay-1 power 
supply

Output

Cooling fan not operating

0 V

Cooling fan at LO operation

6.0 V

39

(P)

—

CAN-L

Input/ 

Output

—

—

40

(L)

—

CAN-H

Input/ 

Output

—

—

41

(B)

Ground

Ground

—

Ignition switch ON

0 V

42

(SB)

Ground

Cooling fan relay-2 control

Input

Cooling fan stopped

Battery voltage

• Cooling fan MID operating
• Cooling fan HI operating

0 V

43

(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

44

(W)

Ground

Horn relay control

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

45

(G)

Ground

Horn switch

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

46

(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

48

(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

49

(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

51

(LG)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

52

(Y/G)

Ground

Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

53

(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

+

−