Infiniti EX35. Manual - part 1279

SEC-12

< FUNCTION DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

• Press the push-button ignition switch 3 times or more within 1.5 seconds. (Emergency stop operation)

Component Parts Location

INFOID:0000000003586643

1.

BCM M118, M119, M121, M122, M123

2.

IPDM E/R E5, E6, E7

3.

Remote keyless entry receiver 
M104

4.

Push-button ignition switch M50

5.

Unified meter and A/C amp. M66, M67 6.

Inside key antenna (instrument 
center) M131

7.

Key slot M22

8.

ECM E107

9.

Inside key antenna (console) 
M146

10. Inside key antenna (luggage room) B228 11.

Combination meter (KEY warning 
lamp) M53

12. Combination meter (security indi-

cator) M53

A.

Dash side lower (passenger side)

B.

Engine room dash panel (RH)

C.

Behind the instrument assist low-
er panel

D.

Behind the instrument assist lower panel E.

Under the rear seat seatback

JMKIA2109ZZ

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

SEC-13

< FUNCTION DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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Component Description

INFOID:0000000003586644

1.

Stop lamp switch E110

2.

Hood switch E30

3.

Horn (high) E61, E62

4.

Horn (low) E69, E70

5.

Front door switch (driver side) B16

6.

TCM F151 (built into A/T assembly)

7.

Control device (detention switch) 
M137

8.

Power window main switch (door 
lock and unlock switch) D8, D9

A.

Behind the instrument driver lower 
cover

B.

Behind the front bumper

C.

A/T assembly

D.

View with the center console assem-
bly removed

JMKIA2110ZZ

Component Reference

BCM

SEC-92

Steering lock unit

SEC-79

Push-button ignition switch

SEC-93

Door switch

DLK-63

SEC-14

< FUNCTION DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION

Control device (detention switch)

SEC-58

Inside key antenna

DLK-56

Remote keyless entry receiver

DLK-78

Stop lamp switch

SEC-52

Park/neutral position switch

SEC-66

Steering lock relay

SEC-70

Starter relay

SEC-73

Starter control relay

SEC-57

Security indicator

SEC-117

Key warning lamp

SEC-118

Component Reference

INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS

SEC-15

< FUNCTION DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

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INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS

System Diagram

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System Description

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INPUT/OUTPUT SIGNAL CHART

SYSTEM DESCRIPTION

• The IVIS (NATS) is an anti-theft system by registering an Intelligent Key ID in to the vehicle and prevents the

engine being started by an unregistered Intelligent Key. It has a higher protection against auto thefts that
duplicate mechanical key.

• It performs the ID verification when starting the engine in the same way as the Intelligent Key system. But, it

performs the IVIS (NATS) ID verification when inserting the Intelligent Key and performs the Intelligent Key
ID verification when carrying the Intelligent Key.

• The mechanical key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key bat-

tery is discharged, the IVIS (NATS) ID verification memorized to the transponder integrated with Intelligent
Key is performed by inserting the Intelligent Key into the key slot. If the verification results are OK, the
engine start operation can be performed by the push-button ignition switch operation.

• Locate the security indicator and apply the anti-theft system equipment sticker, forewarn that the IVIS

(NATS) is onboard with the model.

• The security indicator always blinks when the power supply position is in LOCK and ACC position.
• Intelligent Key can be registered up to 4 keys (Including the standard ignition key) on request from the

owner.

• The specified registration is required when replacing ECM, BCM or Intelligent Key. The registrations proce-

dure for IVIS (NATS) and registration procedure for Intelligent Key when installing the BCM, refer to CON-
SULT-III Operation Manual NATS-IVIS/NVIS.

• Possible symptom of IVIS (NATS) malfunction is “Engine can not start”. The engine can be started with the

Intelligent Key system and IVIS (NATS). Identify the possible causes according to “Work Flow”, Refer to

SEC-5, "Work Flow"

.

• If ECM other than Genuine NISSAN is installed, the engine cannot be started. For ECM replacement proce-

dure, refer to 

SEC-8, "ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement"

.

JMKIA0058GB

Switch

Input signal to BCM

BCM function

Actuator

Push-button ignition switch

Push switch

IVIS (NATS)

• Steering lock relay
• Steering lock unit
• Starter relay (IPDM E/R)
• Starter control relay (IPDM E/R)
• Starter motor
• KEY warning lamp
• Security indicator lamp

Control device

P range

PNP switch

N, P range

Stop lamp switch

Brake ON/OFF

Key slot

Key ID

Each door switch

Door open/close

ECM

Engine status signal