Nissan Altima L32. Manual - part 1219

SEC-26

< FUNCTION DIAGNOSIS >

[COUPE]

VEHICLE SECURITY SYSTEM

VEHICLE SECURITY SYSTEM

System Diagram

INFOID:0000000004205997

System Description

INFOID:0000000004205998

INPUT/OUTPUT SIGNAL CHART

OPERATION FLOW

SETTING THE VEHICLE SECURITY SYSTEM

Initial Condition

• Ignition switch is in OFF position.

ALKIA1743GB

Switch

Input signal to BCM

BCM system

Actuator

All door switch

Open or close

Vehicle security system

• IPDM  E/R
• Head lamp
• Horn
• Security indicator lamp

Trunk room lamp switch

Door key cylinder switch

Lock or unlock

Door lock and unlock switch

Door request switch

Intelligent Key

Lock or unlock

Panic alarm

Key slot

Intelligent Key sensing

PIIA1367E

VEHICLE SECURITY SYSTEM

SEC-27

< FUNCTION DIAGNOSIS >

[COUPE]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Disarmed Phase

• When doors or trunk is open, the vehicle security system is set in the disarmed phase on the assumption

that the owner is inside or near the vehicle.

• When the vehicle security system is in the disarmed phase, the security indicator lamp blinks every 2.4 sec-

onds.

Pre-armed Phase and Armed Phase

When the following operation 1 or 2 is performed, the vehicle security system turns into the “pre-armed”

phase. (The security indicator lamp illuminates.)
1. BCM receives LOCK signal from front door key cylinder switch or Intelligent Key, after trunk and all doors

are closed.

2. Trunk and all doors are closed after front doors are locked by key or door lock and unlock switch.

The security indicator lamp illuminates for 30 seconds. Then, the system automatically shifts into the

“armed” phase.

CANCELING THE SET VEHICLE SECURITY SYSTEM

When one of the following operations is performed, the armed phase is canceled.
1. Unlock the doors with the key or Intelligent Key.
2. Turn ignition switch “ON” or “ACC” position.

CANCELING THE ALARM OPERATION OF THE VEHICLE SECURITY SYSTEM

When unlocking the door with the key or Intelligent Key the alarm operation is canceled.

ACTIVATING THE ALARM OPERATION OF THE VEHICLE SECURITY SYSTEM

Check that the system is in the armed phase. (The security indicator lamp blinks every 2.4 seconds.)

When the following operation 1 or 2 is performed, the system sounds the horns and flashes the headlamps for

about 50 seconds.
1. Trunk or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.

PANIC ALARM OPERATION

Intelligent Key system will not operate horn and headlamps if the ignition switch is in the ACC or ON position.

When the Intelligent Key system is triggered, ground is supplied intermittently to both headlamp relay and horn

relay.

When headlamp relay and horn relay are energized, then power is supplied to headlamps (LH and RH) and

horns (HIGH and LOW).

The headlamp flashes and the horn sounds intermittently.

The alarm automatically turns off after 50 seconds or when BCM receives any signal from Intelligent Key.

SEC-28

< FUNCTION DIAGNOSIS >

[COUPE]

VEHICLE SECURITY SYSTEM

Component Parts Location

INFOID:0000000004205999

ALKIA1744ZZ

1.

Body control module M16, M17, M18, 
M19, M21
(view with instrument panel removed)

2.

IPDM E/R E17, E18

3.

Horn relay H-1

4.

Key slot M40

5.

Remote keyless entry receiver M27
(view with instrument panel removed)

6.

Main power window and door lock/
unlock switch D7, D8

7.

Power window and door lock/unlock 
switch RH D105

8.

Door lock assembly LH (key cylinder 
switch) D10

9.

Door switch LH B8
RH B108

VEHICLE SECURITY SYSTEM

SEC-29

< FUNCTION DIAGNOSIS >

[COUPE]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Component Description

INFOID:0000000004206000

10. Trunk lamp switch and trunk release 

solenoid T4

11. Horn (low) E215

(view with front fender protector LH re-
moved)

12. Horn (high) E216

13. Combination meter M24

14. Security indicator lamp

Component Reference

BCM

SEC-26

Horn relay

SEC-120

Security indicator

SEC-124

Door switch

DLK-69

Door lock actuator

DLK-103

Trunk lid lock assembly

DLK-105

Door key cylinder switch

DLK-81

Door lock and unlock switch

DLK-72

Key slot

DLK-79

Remote keyless entry receiver

DLK-112