System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
OPERATION FLOW
SETTING THE VEHICLE SECURITY SYSTEM
Initial Condition
Ignition switch is in OFF position.
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 seconds.
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.)
BCM receives LOCK signal from front door key cylinder switch or Intelligent Key, after trunk and all doors are closed.
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.
Unlock the doors with the key or Intelligent Key.
Turn ignition switch to "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.
Trunk or any door is opened during armed phase.
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.
Component Parts Location
BCM M16, M17, M18, M19, M21 (view with instrument panel removed)
IPDM E/R E17, E18
Horn relay H-1
Security indicator lamp
Main power window and door lock/unlock switch D7, D8
Power window and door lock/unlock switch RH D105
Front door lock assembly LH D10
Front door switch LH B8 RH B108
Rear door switch LH B18 RH B116
Trunk lamp switch and trunk release solenoid T7
Horn (low) E215 (view with front fender protector LH removed)
Horn (high) E216
Component Description
B2623 inside key antenna 3
Description
Detects whether Intelligent Key is inside the vehicle.
Installed in the trunk room.
DTC Logic
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following
functions. Refer to the Signal Tech II
User Guide for additional information.
Check Intelligent Ke ...
U1216 AV control unit
Description
Replace the AV control unit if this DTC is displayed.
Part name
Description
AV CONTROL UNIT
It is the master unit of the MULTI AV system and it is connected
to each control unit by means of communication. It operates each
syste ...
P0725 engine speed
Description
The engine speed signal is transmitted from ECM to TCM via CAN communication
line.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn
igni ...