Nissan Qashqai (2007-2010). Manual - part 1088

INTELLIGENT KEY UNIT

DLK-431

< ECU DIAGNOSIS >

[WITH I-KEY & SUPER LOCK]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

JCKWA0297GB

DLK-432

< ECU DIAGNOSIS >

[WITH I-KEY & SUPER LOCK]

INTELLIGENT KEY UNIT

Fail Safe

INFOID:0000000001081545

JCKWA0298GB

INTELLIGENT KEY UNIT

DLK-433

< ECU DIAGNOSIS >

[WITH I-KEY & SUPER LOCK]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DTC Inspection Priority Chart

INFOID:0000000001081546

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

DTC Index

INFOID:0000000001081547

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: INTELIGENT 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 

DLK-68

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 unit are NG. Or Intelligent Key 
unit cannot communicate with steering lock unit.

×

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-43

DLK-434

< ECU DIAGNOSIS >

[WITH I-KEY & SUPER LOCK]

BCM (BODY CONTROL MODULE)

BCM (BODY CONTROL MODULE)

Reference Value

INFOID:0000000001097293

VALUES ON THE DIAGNOSIS TOOL

Monitor Item

Condition

Value/Status

ACC ON SW

Ignition switch OFF

OFF

Ignition switch ACC or ON

ON

AIR COND SW

A/C switch OFF

OFF

A/C switch ON

ON

AUT LIGHT SYS

Outside of the room is dark

OFF

Outside of the room is bright

ON

AUTO LIGHT SW

Lighting switch OFF

OFF

Lighting switch AUTO

ON

BACK DOOR SW

Back door closed

OFF

Back door opened

ON

BATTERY VOLT
NOTE:
Diesel engine models 
only

Ignition switch ON

Approximately the same as power 
supply voltage

BUCKLE SW

Driver's seat belt unfastened

OFF

Driver's seat belt fastened

ON

CDL LOCK SW

Door lock/unlock switch does not operate

OFF

Press door lock/unlock switch to the LOCK side

ON

CDL UNLOCK SW

Door lock/unlock switch does not operate

OFF

Press door lock/unlock switch to the UNLOCK side

ON

DOOR SW-AS

Passenger door closed

OFF

Passenger door opened

ON

DOOR SW-DR

Driver door closed

OFF

Driver door opened

ON

DOOR SW-RL

Rear LH door closed

OFF

Rear LH door opened

ON

DOOR SW-RR

Rear RH door closed

OFF

Rear RH door opened

ON

ELEC PWR CUT
NOTE:
Diesel engine models 
only

Engine running

Fan switch ON (when engine coolant is 
cool)
NOTE:
Depending on the ambient tempera-
ture, battery voltage, etc.

OFF

The current status maintained with the 
signal from ECM received.

FREEZ

• Fan switch OFF
• Fan switch ON after engine warming 

UP
NOTE:
Depending on the engine coolant 
temperature, ambient temperature, 
battery voltage, etc.

INHBT