Infiniti M35/M45 Y50. Manual - part 300

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-269

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“NATS I-KEY” SELF-DIAGNOSTIC RESULTS ITEM CHART

Work Flow

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1. 

LISTEN TO CUSTOMER COMPLAINT OR REQUEST

Get symptoms or listen to customer complaints or request.

NOTE:
In case of request for Intelligent Key or IVIS (NATS) system repair, the key ID re-registration might be neces-
sary. Keep all the Intelligent Keys before work for the re-registration.

Key ID registration request>>Register Intelligent Key by referring to CONSULT-II operation manual IVIS/

NVIS NATS.

Request for malfunction repair.>>GO TO 2.

2. 

CHECK DOOR LOCK AND REMOTE CONTROL FUNCTION

Check that Door Lock and remote control function of Intelligent Key operate normally.

Door Lock or remote control function is malfunctioning.>>Malfunction of Door Lock function, Refer to

BL-77,

"WORK FLOW"

 .

Door Lock and remote control function are normal.>>GO TO 3.

DISCORD BCM-I-KEY
[B2194]

The ID verification results 
between BCM and Intelligent 
Key unit are NG.

Short circuit in communication 
line between BCM and Intelli-
gent Key unit to power supply 
line

Malfunction have occurred in 
CAN communication
Check “Self-diagnostic Results” 
of “Intelligent Key” using CON-
SULT-II. Refer to 

BL-150, 

"SELF-DIAGNOSTIC 
RESULTS"

 .

Short circuit in communication 
line between BCM and ECM to 
ground

Intelligent Key unit malfunction

BL-123

ANTI-SCANNING
[B2195]

A remote control starter that is 
not Genuine NISSAN is 
installed

If a remote control starter that is 
not Genuine NISSAN is 
installed, the anti-theft system 
is activated and the engine may 
not be started. In this case, 
remove the parts after the cus-
tomer understands the situa-
tion.

—

Suspect Systems

Description

Possible malfunction

Action to take/Reference page

Suspect Systems

Description

Possible malfunction

Action to take/Reference page

NO DTC

NO DTC

—

—

DISCORD BCM-I-KEY
[B2590]

The ID verification results 
between Intelligent Key unit 
and BCM are NG.

Short circuit in communication 
line between BCM and Intelli-
gent Key unit to power supply 
line

Malfunction have occurred in 
CAN communication
Check “Self-diagnostic Results” 
of “Intelligent Key” using CON-
SULT-II. Refer to 

BL-150, 

"SELF-DIAGNOSTIC 
RESULTS"

 .

Short circuit in communication 
line between BCM and ECM to 
ground

BCM malfunction

BCS-15

BL-270

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

3. 

CONFIRMATION BEFORE DIAGNOSIS

Before performing diagnostic procedure, grasp the operating systems with referring to the items below.

●

“System operation with carrying Intelligent Key”. Refer to 

BL-247, "OPERATION WHEN INTELLIGENT

KEY IS CARRIED"

 .

●

“System operation by using Key slot”. Refer to 

BL-247, "OPERATION WHEN INSERTING TO KEY SLOT"

.

>> GO TO 4.

4. 

CONFIRM SELF DIAGNOSIS 1

Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULT “Intelli-
gent Key”. Refer to 

BL-150, "CONSULT-II Inspection Procedure"

 .

No malfunction>>GO TO 5.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to 

BL-150, "SELF-DIAG-

NOSTIC RESULTS"

 .

5. 

CONFIRM SELF DIAGNOSIS 2

Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULTS “NATS
BCM or S/ENT” and “NATS I-KEY”. Refer to

BL-265, "CONSULT-II INSPECTION PROCEDURE"

 .

NOTE:
NATS program card is necessary to display “SELF DIAG RESULTS”.

No malfunction>>GO TO 6.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to 

BL-268, "“NATS BCM OR

S/ENT” SELF-DIAGNOSTIC RESULTS ITEM CHART"

   and 

BL-269, "“NATS I-KEY” SELF-DIAG-

NOSTIC RESULTS ITEM CHART"

 .

6. 

CHECK INTELLIGENT KEY FUNCTION

Operate Push-button ignition switch with carrying Intelligent Key to check the power source position can be
turned with all of the Intelligent Keys.

CAUTION:

Operate Push-button ignition switch without depressing the brake pedal.

Can be operated with all of the Intelligent Keys>>GO TO 7.
Can not be operated with particular Intelligent Key>>Check  the  malfunctioning  Intelligent  Key.  Refer  to 

BL-

124, "INTELLIGENT KEY BATTERY INSPECTION"

 .

Can not be operated with any of the Intelligent Keys>>Perform Trouble diagnosis symptom chart 1. Refer to

BL-177, "Trouble Diagnosis Symptom Chart 1"

 .

7. 

CHECK TURNING TIMING OF POWER SOURCE POSITION 1

Check the power source turning delay time after Push-button ignition switch is pushed. (Approx. 3 sec)

CAUTION:

Operate Push-button ignition switch without depressing the brake pedal.

No delay time exists>>GO TO 8.
Delay time exists>>Perform Trouble diagnosis symptom chart 2. Refer to 

BL-178, "Trouble Diagnosis Symp-

tom Chart 2"

 .

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

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8. 

CHECK TURNING TIMING OF POWER SOURCE POSITION 2

Check all the Intelligent Keys for power source turning delay time after Push-button ignition switch is pushed
with Intelligent Key inserted into key slot. (Approx. 3 sec)

CAUTION:

Operate Push-button ignition switch without depressing the brake pedal.

No delay time exists>>GO TO 9.
Delay time exists when operated with particular Intelligent Key.>>Perform “C/U INITIALIZATION” referring to

CONSULT-II operation manual IVIS/NVIS NATS. In case that delay time still exists after the initial-
ization, replace the Intelligent Key.

Delay time exists when operated with any of the Intelligent Keys.>>Perform  Trouble  diagnosis  symptom

chart 3. Refer to 

BL-178, "Trouble Diagnosis Symptom Chart 3"

 .

9. 

CHECK ENGINE START FUNCTION

Check that engine can be started with Intelligent Key carried and inserted into the key slot respectively.

Engine can be started.>>GO TO 10.
Engine cannot be started.>>Inspect Trouble Diagnosis Flow Chart for IVIS (NATS). Refer to 

BL-272, "Trou-

ble Diagnoses Flow Chart for IVIS (NATS)"

 .

10. 

CHECK SECURITY INDICATOR FUNCTION

Check Security Indicator for lighting up under the two conditions below.

●

Security Indicator lights off when Push-button ignition switch is pushed with Intelligent Key inserted into or
pulled out of the key slot.

●

Security Indicator blinks when Intelligent Key is pulled out and Push-button ignition switch is in lock posi-
tion.

Lighting up condition is normal.>>Inspection END.
Lighting up condition is malfunctioning.>>Perform Security Indicator Inspection. Refer to 

BL-274, "Symptom

Chart for Security Indicator"

 .

BL-272

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

Trouble Diagnoses Flow Chart for IVIS (NATS)

NIS0020P

NOTE:
This procedure is used to resolve the engine start malfunction when the Intelligent Key inserted into the key
slot is used.

1. 

CHECK ENGINE FOR START

Check that the engine can be started when Push-button ignition switch is operated with Intelligent Key
inserted into the key slot.

NG

>> GO TO 2.

OK

>> System is normal.

2. 

CONFIRM SELF DIAGNOSIS

Confirm SELF DIAGNOSIS “NATS V5.0” using CONSULT-II.

NOTE:
NATS program card is necessary to display the “SELF DIAGNOSIS”.

No malfunction>>Re-check the engine for start according to “Work Flow”. Refer to 

BL-269, "Work Flow"

 .

Malfunction related to IVIS (NATS) is displayed.>>GO TO 3.
Malfunctions related to “DON'T ERASE BEFORE CHECKING ENG DIAG” and IVIS (NATS) are displayed>>

GO TO 6.

3. 

TROUBLE DIAGNOSIS

Repair IVIS (NATS) according to “SELF DIAGNOSIS”.

>> GO TO 4.

4. 

ERASE SELF DIAGNOSIS

Erase the record of “SELF DIAGNOSIS” using CONSULT-II.

>> GO TO 5.

5. 

CHECK ENGINE FOR START

Check that the engine can be started when Push-button ignition switch is operated with Intelligent Key
inserted into the key slot.

NG

>> GO TO 2.

OK

>> Inspection END.

6. 

CONFIRM SELF DIAGNOSIS DISPLAY

IVIS (NATS) malfunction information and “DON'T ERASE BEFORE CHECKING ENG DIAG” are displayed on
the CONSULT-II screen. 

NOTE:
This indication means that malfunctions have been detected in IVIS (NATS) and engine control system. 

>> GO TO 7.