Nissan Pathfinder (2011 year). Manual - part 545

INTELLIGENT KEY UNIT

SEC-67

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

13

W

Luggage area anten-
na (+) signal

LOCK

Press ignition knob switch: ON (Ignition 
knob switch)

14

BR

Luggage area anten-
na (-) signal

15

V

Instrument panel 
area antenna (+) sig-
nal

LOCK

Any door open 

→

 all doors closed

16

LG

Instrument panel 
area antenna (-) sig-
nal

17

R

Rear bumper anten-
na (+) signal

LOCK

Press back door request switch.

18

L

Rear bumper anten-
na (-) signal

19

Y

Front outside anten-
na LH (+) signal

LOCK

Press front door request switch LH.

20

W

Front outside anten-
na LH (-) signal

21

BR

Remote keyless en-
try receiver RSSI sig-
nal

—

—

23

SB

Back door control 
unit signal

—

Back door release switch ON.

0

Back door release switch OFF.

Battery voltage

24

W

Back door opener 
switch input

—

Back door opener switch ON.

0

Back door opener switch OFF.

5

25

R

Front door request 
switch RH

—

Press front door request switch RH.

0

Other than above

Battery voltage

27

G

Ignition knob switch

—

Press ignition switch.

Battery voltage

Return ignition switch to LOCK position.

0

28

P

Unlock sensor
(driver side)

—

Door (driver side) is locked.

5

Door (driver side) is unlocked.

0

Terminal

Wire 

Color

Item

Condition

Voltage (V)

Approx.

Ignition 

Switch Po-

sition

Operation or Conditions

PIIB7441E

PIIB7441E

SIIA1910J

SIIA1910J

PIIA2344E

2011 Pathfinder

SEC-68

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY UNIT

Reference Value - Steering Lock Solenoid

INFOID:0000000006246268

TERMINAL LAYOUT

PHYSICAL VALUES

29

GR

Back door request 
switch

—

Back door request switch ON.

0

Back door request switch OFF.

5

30

W

Remote keyless en-
try receiver power 
supply

—

—

5

32

V

Steering lock sole-
noid communication 
signal

LOCK

When Intelligent Key is inside vehicle, 
press ignition knob switch.

Other than above

5

33

G

Center console area 
antenna (+) signal

LOCK

Any door open 

→

 all doors closed

34

R

Center console area 
antenna (-) signal

37

P

Front outside anten-
na (+) signal RH

LOCK

Press front door request switch RH.

38

V

Front outside anten-
na (-) signal RH

39

SB

P range switch

—

Selector lever is in “P” position.

0

Other than above

Battery voltage

40

R

AS select unlock out-
put

—

UNLOCK with rear door locks disabled.

0

Other than above

Battery voltage

Terminal

Wire 

Color

Item

Condition

Voltage (V)

Approx.

Ignition 

Switch Po-

sition

Operation or Conditions

SIIA1911J

PIIB7441E

SIIA1910J

WIIA1169E

2011 Pathfinder

INTELLIGENT KEY UNIT

SEC-69

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

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A

B

SEC

N

O

P

Fail Safe

INFOID:0000000006246270

Fail-safe operation

The Intelligent Key system operation will be interrupted if the Intelligent Key unit loses power or communica-

tion with the BCM.

DTC Inspection Priority Chart

INFOID:0000000006246271

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

chart.

DTC Index

INFOID:0000000006246272

NOTE:

Details of time display

• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning igni-

tion switch OFF 

→

 ON again.

• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1

→

 2 

→

 3...38 

→

 39 after returning to the normal condition whenever ignition switch OFF 

→

 ON. The counter

remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch

OFF 

→

 ON after returning to the normal condition if the malfunction is detected again.

Terminal

Wire 

Color

Signal Designation

Condition

Voltage (V)

Approx.

Ignition 

Switch Posi-

tion

Operation or Conditions

1

R/B

Power source (fuse)

LOCK

—

Battery voltage

2

O

Steering lock solenoid 
power supply

LOCK

—

5

3

V

Steering lock solenoid 
communication signal

LOCK

When Intelligent Key is inside ve-
hicle, press ignition knob switch.

Other than the above

5

4

SB

Steering lock solenoid 
ground

—

—

0

SIIA1911J

Priority

DTC

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
• B2552: INTELLIGENT KEY

2

• B2013: STRG COMM 1
• B2590: NATS MALFUNCTION

CONSULT display

Detection condition

Fail-safe

Diagnosis

No DTC is detected.
further testing
may be required.

—

—

—

U1000: CAN COMM CIRCUIT

Intelligent Key unit cannot receive CAN communi-
cation signal continuously for 2 seconds or more.

—

Check CAN communi-
cation system.
Refer to 

SEC-28

.

U1010: CONTROL UNIT (CAN)

Intelligent Key unit detects internal CAN communi-
cation circuit malfunction.

—

Replace Intelligent Key 
unit. Refer to 

SEC-113

.

2011 Pathfinder

SEC-70

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY UNIT

B2013: STRG COMM 1

The ID verification result between Intelligent Key 
unit and steering lock solenoid are NG. Or Intelligent 
Key unit cannot communicate with steering lock so-
lenoid.

×

Perform steering lock 
unit ID registration with 
CONSULT-III

B2552: INTELLIGENT KEY

Intelligent Key unit internal malfunction.

×

Replace Intelligent Key 
unit. Refer to 

SEC-113

.

B2590: NATS MALFUNCTION

The ID verification result between Intelligent Key 
unit and BCM are NG. Or Intelligent Key unit cannot 
communicate with BCM.

×

Check NATS
Refer to 

SEC-42

.

CONSULT display

Detection condition

Fail-safe

Diagnosis

2011 Pathfinder

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

SEC-71

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

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

Reference Value

INFOID:0000000006767017

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

A/C switch OFF

Off

A/C switch ON

On

TAIL&CLR REQ

Lighting switch OFF

Off

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

On

HL LO REQ

Lighting switch OFF

Off

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

On

HL HI REQ

Lighting switch OFF

Off

Lighting switch HI

On

FR FOG REQ

Lighting switch 2ND or AUTO (Light 
is illuminated)

Front fog lamp switch OFF

Off

• Front fog lamp switch ON
• Daytime light activated (Canada 

only)

On

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

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

ST RLY REQ

Ignition switch OFF or ACC

Off

Ignition switch START

On

IGN RLY

Ignition switch OFF or ACC

Off

Ignition switch ON

On

RR DEF REQ

Rear defogger switch OFF

Off

Rear defogger switch ON

On

OIL P SW

Ignition switch OFF, ACC or engine running

Open

Ignition switch ON

Close

DTRL REQ

Daytime light system requested OFF with CONSULT-III.

Off

Daytime light system requested ON with CONSULT-III.

On

THFT HRN REQ

Not operated

Off

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

TEM

On

2011 Pathfinder

SEC-72

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

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

Terminal Layout

INFOID:0000000006767018

NOTE:

Numbers preceded by an "F" represent the fuse numbers imprinted on the IPDM E/R.  The other numbers rep-

resent the fuse numbers as they appear in the wiring diagrams.

HORN CHIRP

Not operated

Off

Door locking with keyfob or Intelligent Key (if equipped) (horn chirp mode) On

Monitor Item

Condition

Value/Status

AAMIA0386GB

2011 Pathfinder

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

SEC-73

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Physical Values

INFOID:0000000006767019

PHYSICAL VALUES

Terminal

Wire

color

Signal name

Signal 

input/

output

Measuring condition

Reference value

(Approx.)

Igni-

tion 

switch

Operation or condition

1

W

Battery power supply

Input

OFF

—

Battery voltage

2

R

Battery power supply

Input

OFF

—

Battery voltage

3

G

ECM  relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

4

P

ECM  relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

6

V

Throttle control motor 
relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

7

BR

ECM relay control

Input

—

Ignition switch ON or START

0V

Ignition switch OFF or ACC

Battery voltage

8

W/R

Fuse 54

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

10

R/B

Fuse 45

Output

ON

Daytime light system active

0V

Daytime light system inactive

Battery voltage

11

Y

A/C compressor

Output

ON or 

START

A/C switch ON or defrost A/C 
switch

Battery voltage

A/C switch OFF or defrost A/C 
switch

0V

12

W/G

Ignition switch sup-
plied power

Input

—

OFF or ACC

0V

ON or START

Battery voltage

13

R

Fuel pump relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

14

W/G

Fuse 49

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

15

W/R

Fuse 50 (ABS)

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

16

W/G

Fuse 51

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

17

W/G

Fuse 55

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

19

W

Starter motor

Output

START

—

Battery voltage

20

BR

Cooling fan motor 
(low)

Output

ON or 

START

—

Battery voltage

21

GR

Ignition switch sup-
plied power

Input

—

OFF or ACC

0V

START

Battery voltage

22

G

Battery power supply

Output

OFF

—

Battery voltage

23

LG

Door mirror defogger 
output signal

Output

—

When rear defogger switch is 
ON

Battery voltage

When raker defogger switch is 
OFF

0V

2011 Pathfinder

SEC-74

< ECU DIAGNOSIS INFORMATION >

[WITH INTELLIGENT KEY SYSTEM]

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

24

P

Cooling fan motor 
(high)

Output

—

Conditions correct for cooling 
fan operation

Battery voltage

Conditions not correct for 
cooling fan operation

0V

27

W

Fuse 38

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

28

R

LH front parking and 
front side marker lamp

Output

OFF

Lighting 
switch 1st po-
sition

OFF

0V

ON

Battery voltage

29

G

Trailer tow relay

Output

ON

Lighting 
switch 1st po-
sition

OFF

0V

ON

Battery voltage

30

R/B

Fuse 53

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

0V

32

GR

Wiper low speed sig-
nal

Output

ON or 

START

Wiper switch

OFF

Battery voltage

LO or INT

0V

35

L

Wiper high speed sig-
nal

Output

ON or 

START

Wiper switch

OFF, LO, INT

Battery voltage

HI

0V

37

Y

Power generation 
command signal

Output

—

Ignition switch ON

6.3 V

40% is set on "Active test," 
"ALTERNATOR DUTY" of 
"ENGINE"

3.8 V

40% is set on "Active test," 
"ALTERNATOR DUTY" of 
"ENGINE"

1.4 V

38

B

Ground

Input

—

—

0V

39

L

CAN-H

—

ON

—

—

40

P

CAN-L

—

ON

—

—

42

GR

Oil pressure switch

Input

—

Engine running

Battery voltage

Engine stopped

0V

Terminal

Wire

color

Signal name

Signal 

input/

output

Measuring condition

Reference value

(Approx.)

Igni-

tion 

switch

Operation or condition

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

2011 Pathfinder