Nissan Frontier D40. Manual - part 981

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< SYMPTOM DIAGNOSIS >

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

Symptom Table

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NOTE:
• Before performing the diagnosis in the following table, check “

SEC-3, "Work Flow"

”. 

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column

in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

• Mechanical key is not inserted into key cylinder.
• Ignition knob switch is not depressed.

Symptom

Diagnosis/service procedure

Reference page

Security indicator does not turn ON or flash.

1. Check vehicle security indicator

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2. Check Intermittent Incident

GI-46

PRECAUTIONS

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

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< ON-VEHICLE REPAIR >

NATS ANTENNA AMP.

ON-VEHICLE REPAIR

NATS ANTENNA AMP.

Removal and Installation

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NOTE:
• If NATS antenna amp. is not installed correctly, NVIS (NATS) system will not operate properly and "SELF-

DIAG RESULTS" on CONSULT-III screen will show "LOCK MODE" or "CHAIN OF IMMU-KEY".

• Initilization is not necessary when only the NATS antenna amp. is replaced with a new one.

REMOVAL

1.

Disconnect the battery negative terminal. Refer to 

PG-84, "Removal and Installation"

.

2.

Remove the lower instrument panel LH. Refer to 

IP-10, "Exploded View"

.

3.

Remove the bolt (A), disconnect the electrical connector (1) and
remove the NATS antenna amp (2).

INSTALLATION

Installation is in the reverse order of removal.

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REMOTE KEYLESS ENTRY RECEIVER

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REMOTE KEYLESS ENTRY RECEIVER

Removal and Installation

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REMOVAL

1.

Remove the front pillar upper finisher (RH). Refer to 

INT-17, "Component"

.

2.

Remove the side ventilator grille (RH). Refer to 

IP-10, "Exploded View"

.

3.

Remove the upper glove box. Refer to 

IP-10, "Exploded View"

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4.

Remove cluster lid D. Refer to 

IP-10, "Exploded View"

.

5.

Remove the bolt (A), disconnect the harness connector (1) and
remove the remote keyless entry receiver (2).

INSTALLATION

Installation is in the reverse order of removal.
• Perform TPMS ID registration. Refer to 

WT-6, "ID Registration Procedure"

.

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