Nissan Versa Sedan. Instruction - part 709

SEC-108

< PREPARATION >

[WITHOUT INTELLIGENT KEY SYSTEM]

PREPARATION

PREPARATION

PREPARATION

Special Service Tool

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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description 

—

(J-46534)
Trim Tool Set

Removing trim components

AWJIA0483ZZ

COMPONENT PARTS

SEC-109

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SYSTEM DESCRIPTION

COMPONENT PARTS

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Component Parts Location

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1.

BCM
(view with instrument panel removed)

2.

Dongle unit
(behind instrument panel LH)

3.

Ignition switch

4.

NATS antenna amp.
(inside steering column)

5.

Clutch interlock switch
(M/T models)

6.

Combination meter (type B)

7.

Security indicator lamp
(with type B combination meter)

8.

Combination meter (type A)

9.

Security indicator lamp
(with type A combination meter)

10. Starter relay

(integrated within the IPDM E/R)

11. Transmission range switch

(CVT or A/T models)

12. Horn

ALKIA2293ZZ

SEC-110

< SYSTEM DESCRIPTION >

[WITHOUT INTELLIGENT KEY SYSTEM]

COMPONENT PARTS

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : Component Description

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Item

Function

BCM

Verifies the received signal from the ignition key ID, then informs ECM whether to allow engine start.

Transmission range switch 
(CVT models)

Detects whether the shift lever is in park.

Clutch interlock switch (M/T 
models)

Detects whether the clutch pedal is depressed.

Dongle unit

Sends ID verification signal to the BCM.

Starter relay

Supplies battery voltage to the starter motor when enabled.

NATS antenna amp.

Detects the ignition key presence in the ignition key cylinder.

Security indicator

Indicates the status of the security system.

IPDM E/R

Supplies battery voltage from integrated starter relay to the starter motor.

SYSTEM

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SYSTEM

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Diagram

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NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Description

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INPUT/OUTPUT SIGNAL CHART

BCM

SYSTEM DESCRIPTION

NATS (Nissan Anti-Theft System) has the following immobilizer functions:

• Engine immobilizer shows high anti-theft performance to prevent engine from starting by other anyone than

the owner.

• Only a key with key ID registered in BCM and ECM can start engine, and shows high anti-theft performance

to prevent key from being copied or stolen.

• Security indicator always flashes with mechanical key removed condition (key switch: OFF) 

• Therefore, NATS warns outsiders that the vehicle is equipped with the anti-theft system.

• If system detects malfunction, security indicator illuminates when ignition switch is turned to ON position.

• If the owner requires, ignition key ID or mechanical key ID can be registered for up to 5 keys.

• During trouble diagnosis or when the following parts have been replaced, and if ignition key is added, regis-

tration

*1

 is required. 

*1

: All keys kept by the owner of the vehicle should be registered with mechanical key.

- ECM

- BCM

- Ignition key

- Remote keyless entry receiver

• NATS trouble diagnosis, system initialization and additional registration of other mechanical key IDs must be

carried out using CONSULT.

• When NATS initialization has been completed, the ID of the inserted mechanical key or mechanical key IDs

can be carried out.

• Possible symptom of NATS malfunction is “Engine cannot start”. Identify the possible causes according to

“Work Flow”, Refer to 

SEC-126, "Work Flow"

.

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

dure, refer to 

SEC-129, "ECM RE-COMMUNICATING FUNCTION : Description"

.

PRECAUTIONS FOR KEY REGISTRATION

ALKIA2291GB

Switch/Input signal

Input signal to BCM

BCM function

Actuator/Output signal

NATS antenna amp.

Key ID

NATS

• Security indicator lamp
• Starter request

ECM

Engine status signal