Nissan Titan. Manual - part 539

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< SYMPTOM DIAGNOSIS >

VEHICLE SECURITY SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

VEHICLE SECURITY SYSTEM SYMPTOMS

Symptom Table

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*: Check the system is in the armed phase.

Procedure

Diagnostic procedure

Refer to page

Symptom

1

Vehicle security sys-
tem cannot be set by 
····

Door switch

Check door switch (king cab) 

DLK-26

Check door switch (crew cab)

DLK-27

Key cylinder switch

Check key cylinder switch (king cab)

DLK-36

Check key cylinder switch (crew cab)

DLK-38

—

Check Intermittent Incident

GI-42

Security indicator does not turn ON.

Check vehicle security indicator

SEC-35

Check Intermittent Incident

GI-42

2

* Vehicle security 
system does not 
sound alarm when ····

Any door is opened.

Check door switch (king cab) 

DLK-26

Check door switch (crew cab)

DLK-27

—

Check Intermittent Incident

GI-42

3

Vehicle security 
alarm does not acti-
vate.

Horn alarm

Check horn switch

—

Check Intermittent Incident

GI-42

4

Vehicle security sys-
tem cannot be can-
celed by ····

Key cylinder switch

Check key cylinder switch (king cab)

DLK-36

Check key cylinder switch (crew cab)

DLK-38

—

Check Intermittent Incident

GI-42

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

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< SYMPTOM DIAGNOSIS >

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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)

• Ignition switch is not turned ON.

• Ignition key is not inserted into key cylinder.

Symptom

Diagnosis/service procedure

Reference page

Security indicator does not turn ON or flash.

1. Check vehicle security indicator

SEC-35

2. Check Intermittent Incident

GI-42

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< PRECAUTION >

PRECAUTIONS

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.

NATS ANTENNA AMP.

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< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

NATS ANTENNA AMP.

Removal and Installation

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NATS ANTENNA AMP

NOTE:

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

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

• Initialization 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-80, "Removal and Installation"

.

2. Remove cluster lid A. Refer to 

IP-13, "Removal and Installation"

.

3. Remove the NATS antenna amp (2).
a. Remove the NATS antenna amp bolt (A).
b. Disconnect the harness connector (1) from the NATS antenna

amp. and remove.

Installation

Installation is in the reverse order of removal.

ALKIA1858GB