Nissan Titan A60. Manual - part 842

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< BASIC INSPECTION >

PRE-INSPECTION FOR DIAGNOSTIC

PRE-INSPECTION FOR DIAGNOSTIC

Basic Inspection

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1.

INSPECTION START

Turn ignition switch “OFF”.

NOTE:

Before starting operation check, open front windows.

>> GO TO 2.

2.

CHECK SECURITY INDICATOR LAMP

1. Lock doors using keyfob or ignition key.

2. Check that security indicator lamp illuminates for 30 seconds.
Does security indicator lamp illuminate?

YES

>> GO TO 3.

NO

>> Perform diagnosis and repair. Refer to 

SEC-35, "Component Function Check"

.

3.

CHECK ALARM FUNCTION

1. After 30 seconds, security indicator lamp will start to blink.

2. Open any door before unlocking with keyfob or ignition key.
Does the alarm function properly?

YES

>> GO TO 4.

NO

>> Check the following.

• The vehicle security system does not phase in alarm mode. Refer to 

SEC-66, "Symptom Table"

.

• Alarm (horn and headlamp do not operate. Refer to 

SEC-66, "Symptom Table"

.

4.

CHECK ALARM CANCEL OPERATION

Unlock driver door using keyfob or ignition key.
Does the alarm (horn, headlamp and hazard lamp) stop?

YES

>> Inspection End.

NO

>> Check door lock function. Refer to 

DLK-12, "DOOR LOCK AND UNLOCK SWITCH : System

Description"

.

INSPECTION AND ADJUSTMENT

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< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

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Refer to CONSULT-III Operation Manual.

ECM RE-COMMUNICATING FUNCTION
ECM RE-COMMUNICATING FUNCTION : Description

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Performing following procedure can automatically perform re-communication of ECM and BCM, but only when

the ECM has been replaced with a new one (*1).

*1: New one means an ECM which has never been energized on-board.

(In this step, initialization procedure by CONSULT-III is not necessary)

NOTE:

• When registering new Key IDs or replacing the ECM that is not brand new, refer to CONSULT-III Oper-

ation Manual.

• If multiple keys are attached to the key holder, separate them before work.

• Distinguish keys with unregistered key ID from those with registered ID.

ECM RE-COMMUNICATING FUNCTION : Special Repair Requirement

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1.

PERFORM ECM RE-COMMUNICATING FUNCTION

1. Install ECM.

2. Using a registered key (*2), turn ignition switch to “ON”.

*2: To perform this step, use the key that has been used before performing ECM replacement.

3. Maintain ignition switch in “ON” position for at least 5 seconds.

4. Turn ignition switch to “OFF”.

5. Start engine.
Can engine be started?

YES

>> Procedure is completed.

NO

>> Initialize control unit. Refer to CONSULT-III Operation Manual.

SEC-8

< SYSTEM DESCRIPTION >

NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

SYSTEM DESCRIPTION

NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

System Diagram

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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 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) and ignition

knob released condition on LOCK position (ignition knob switch: OFF). 

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

SEC-11,

"System Description"

.

• 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* 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-III.

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

can be carried out.

PIIA1121E

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

NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

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< SYSTEM DESCRIPTION >

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

“Work Flow”, Refer to 

SEC-3, "Work Flow"

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

dure, refer to 

SEC-7, "ECM RE-COMMUNICATING FUNCTION : Description"

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PRECAUTIONS FOR KEY REGISTRATION

• The key registration is a procedure that erases the current NATS ID once, and then re-registers a new ID.

Therefore the registered key is necessary for this procedure. Before starting the registration operation collect

all registered Keys from the customer.

• The NATS ID registration is the procedure that registers the ID stored into the transponder (integrated in

mechanical key) to BCM.

The key ID registration is the procedure that registers the ID to the BCM.

• When performing the key system registration only, the engine cannot be started by inserting the key into the

key cylinder. When performing the NATS registration only, the engine cannot be started by using the ignition

key.

SECURITY INDICATOR

• Always flashes with ignition key in the OFF position. 

MAINTENANCE INFORMATION

CAUTION:

It is necessary to perform NATS ID registration when replacing any of the following part.

If it's not (or fail to do so), the electrical system may not operate properly.

• BCM

• ECM

• IPDM E/R

• Ignition key

• NATS antenna amp.

• Combination meter

Component Parts Location

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ALKIA0701ZZ