Nissan Altima L32. Manual - part 1316

SEC-414

< BASIC INSPECTION >

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PRE-INSPECTION FOR DIAGNOSTIC

PRE-INSPECTION FOR DIAGNOSTIC

Basic Inspection

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The engine start function, door lock function, power distribution system and NATS-IVIS/NMS in the Remote

Keyless Entry system are closely related to each other regarding control. Narrow down the functional area in

question by performing basic inspection to identify which function is malfunctioning. The vehicle security func-

tion can operate only when the door lock and power distribution systems are operating normally. Therefore, it

is easy to identify any factor unique to the vehicle security system by performing the vehicle security operation

check after basic inspection.

1.

CHECK DOOR LOCK OPERATION

1. Check the door lock for normal operation with the keyfob.

Successful door lock operation with the keyfob indicates that the remote keyless entry receiver is function-

ing normally.

Identify the malfunctioning point by referring to the DLK section if the door cannot be unlocked.

Can the door be locked with the keyfob?

YES

>> GO TO 2

NO

>> Refer to 

DLK-415, "INTELLIGENT KEY : Symptom Table"

.

2.

CHECK ENGINE STARTING

1. Checks that the engine starts when operating the keyfob inserted into the key slot.
Does the engine start?

YES

>> GO TO 3

NO

>> Refer to 

SEC-593, "Symptom Table"

.

3.

CHECK STEERING LOCKING

1. Does the steering lock when operating door switch after switching the power supply from ON position (or

ACC position) to LOCK position?

If door switch is malfunctioning, BCM cannot lock the steering. If BCM does not detect DTC, steering lock

unit is normal.

Does steering lock?

YES

>> GO TO 4

NO

>> Refer to 

DLK-293, "Component Function Check"

.

4.

CHECK POWER SUPPLY INDICATOR SWITCHING

1. Press push-button ignition switch and position indicator will switch from LOCK, ACC to ON gradually

when steering is locked. Check that the position indicator is illuminated at different positions of the circuit.

Is each position indicator illuminating?

YES

>> GO TO 5

NO

>> Refer to 

SEC-499, "Description"

.

5.

CHECK VEHICLE SECURITY SYSTEM

1. Check the vehicle security system for normal operation.

The vehicle security function can operate only when the door lock and power distribution functions are

operating normally. 

Therefore, it is easy to identify any factor unique to the vehicle security by performing the vehicle security

operation check after this basic inspection.

>> Refer to 

SEC-414, "Vehicle Security Operation Check"

.

Vehicle Security Operation Check

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1.

INSPECTION START

Turn ignition switch “OFF” and pull out keyfob from key slot.

NOTE:

Before starting operation check, open front windows.

PRE-INSPECTION FOR DIAGNOSTIC

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>> GO TO 2

2.

CHECK SECURITY INDICATOR LAMP

1. Lock doors using keyfob or mechanical key.

2. Check that security indicator lamp illuminates for 30 seconds.
Security indicator lamp should illuminate.

OK

>> GO TO 3

NG

>> Perform diagnosis and repair. Refer to 

SEC-514, "Component Function Check"

.

3.

CHECK ALARM FUNCTION

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

2. Open any door or hood before unlocking with keyfob or mechanical key, or open trunk lid without keyfob

or mechanical key.

Do alarm function properly.

OK

>> GO TO 4

NG

>> Check the following.

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

SEC-594, "Symptom

Table"

.

• Alarm (horn, headlamp and hazard lamp) do not operate. Refer to 

SEC-594, "Symptom Table"

.

4.

CHECK ALARM CANCEL OPERATION

Unlock any door or open trunk lid using keyfob or mechanical key.
Alarm (horn, headlamp and hazard lamp) should stop.

OK

>> Inspection End.

NG

>> Check door lock function. Refer to 

DLK-246, "INTELLIGENT KEY : System Description"

.

SEC-416

< BASIC INSPECTION >

[SEDAN WITHOUT INTELLIGENT KEY]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

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. Insert the registered keyfob (*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.

ENGINE START FUNCTION

SEC-417

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

ENGINE START FUNCTION

System Diagram

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System Description

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INPUT/OUTPUT SIGNAL CHART

SYSTEM DESCRIPTION 

• The engine start function of remote keyless entry system is a system that makes it possible to start and stop

the engine without removing the key. It verifies the electronic ID using two-way communications when press-

ing the push-button ignition switch while carrying the keyfob, which operates based on the results of elec-

tronic ID verification for keyfob using two-way communications between the keyfob and the vehicle.

NOTE:

The driver should carry the keyfob at all times.

• keyfob has 2 IDs [for keyfob and for NVIS (NATS)]. It can perform the door lock/unlock operation and the

push-button ignition switch operation when the registered keyfob is carried.

• When the keyfob battery is discharged, it can be used as emergency back-up by inserting the keyfob to the

key slot. At that time, perform the NVIS (NATS) ID verification. If it is used when the keyfob is carried, per-

form the keyfob ID verification.

• If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be

released and initiating the engine will be possible.

• If the door lock/unlock operation is performed when the keyfob battery is discharged, all doors lock/unlock

can be performed by operating the driver door key cylinder using the mechanical key set in the keyfob. 

• keyfob can be registered up to 4 keys (Including the standard keyfob) on request from the owner.

NOTE:

• Refer to 

DLK-246, "INTELLIGENT KEY : System Description"

 for any functions other than engine start

function of remote keyless entry system.

ALKIA1746GB

Switch

Input signal to BCM

BCM function

Actuator

Push-button ignition switch

Push switch

Engine start function

• Steering lock relay
• Steering lock unit
• Starter relay (IPDM E/R)
• Starter control relay (IPDM E/

R)

• Starter motor
• KEY warning lamp

CVT device (park position switch)

P range

PNP switch

N, P range

Stop lamp switch

Brake ON/OFF

Each inside key antenna

Request signal

Remote keyless entry receiver

Key ID

Each door switch

Door open/close

ECM

Engine status signal