Nissan Pathfinder (2008 year). Manual - part 554

BCM (BODY CONTROL MODULE)

SEC-65

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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ALKIA0476GB

SEC-66

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BCM (BODY CONTROL MODULE)

ALKIA0477GB

BCM (BODY CONTROL MODULE)

SEC-67

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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ALKIA0478GB

SEC-68

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BCM (BODY CONTROL MODULE)

ALKIA0935GB

BCM (BODY CONTROL MODULE)

SEC-69

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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ALKIA0936GB

SEC-70

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BCM (BODY CONTROL MODULE)

Fail Safe

INFOID:0000000001689573

DTC Inspection Priority Chart

INFOID:0000000001689574

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

DTC Index

INFOID:0000000001689575

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.

Display contents of CONSULT-III

Fail-safe

Cancellation

B2013: STRG COMM 1

• Inhibits steering look unlocking

Erase DTC

B2552: INTELLIGENT KEY

• Inhibits steering look unlocking
• Inhibits  engine cranking

(BCM)

• Fuel  cut

(ECM)

Erase DTC

B2590: NATS MALFUNCTION

• Inhibits steering look unlocking
• Inhibits  engine cranking

(BCM)

• Fuel  cut

(ECM)

Erase DTC

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-25

U1010: CONTROL UNIT (CAN)

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

—

Replace 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.

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-39

INTELLIGENT KEY UNIT

SEC-71

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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INTELLIGENT KEY UNIT

Reference Value

INFOID:0000000001689576

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

TERMINAL LAYOUT

Refer to 

DLK-129, "Reference Value - Intelligent Key Unit"

.

PHYSICAL VALUES

Refer to 

DLK-129, "Reference Value - Intelligent Key Unit"

.

Monitor Item

Condition

Value/Status

PUSH SW

Ignition knob

Release

OFF

Press

ON

KEY ON SW

Mechanical key

Removed

OFF

Inserted

ON

DR REQ SW

Door request switch 
(driver)

Release

OFF

Press

ON

AS REQ SW

Door request switch
(passenger)

Release

OFF

Press

ON

BD/TR REQ SW

Door request switch
(back door)

Release

OFF

Press

ON

IGN SW

Ignition switch

Other than ON position

OFF

ON position

ON

ACC SW

Ignition switch

Other than ACC or ON position

OFF

ACC or ON position

ON

STOP LAMP SW

Brake pedal

Press

OFF

Release

ON

DOOR LOCK SIG

Lock button of 
Intelligent Key

Release

OFF

Press

ON

DOOR UNLOCK SIG

Unlock button of 
Intelligent Key

Release

OFF

Press

ON

DOOR SW DR

Door (driver side)

Close

OFF

Open

ON

DOOR SW AS

Door (passenger side)

Close

OFF

Open

ON

DOOR SW RR

Door (rear RH)

Close

OFF

Open

ON

DOOR SW RL

Door (rear LH)

Close

OFF

Open

ON

DOOR BK SW

Back door

Close

OFF

Open

ON

VEHICLE SPEED

While driving

Equivalent to speedometer reading

SEC-72

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY UNIT

Wiring Diagram - INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION -

INFOID:0000000001689577

ALKWA0132GB