Honda Accord 2008 Manual page 2182

07/11/02 09:31:55 61TA0000_220_0152
System Description
Security Alarm
The security alarm system is armed automatically after
the doors, hood, and trunk lid are closed and locked.
For the system to arm, the ignition switch must be in
the LOCK (0) position, the key must be removed from
the ignition switch, and the driver's and passenger's
MICUs must receive signals that the doors, hood, and
trunk lid are closed and locked. The alarm can be
disarmed at any time by unlocking the driver's door
with the key or pressing the UNLOCK button on the
transmitter.
When everything is closed and locked, the only inputs
that are grounded, and have 0 V, are the driver's door
lock knob switch (LOCK position) and the audio unit or
navigation unit (if equipped). In other words, all of the
other switches are open, and have about 10 to 12 V,
including the key cylinder switches. The security
indicator in the gauge control module begins to flash
immediately after the vehicle is completely closed and
locked, and 15 seconds later, the security system arms.
If the security indicator does not flash, the system is not
arming. A beep sounds and the parking lights flash to
confirm the security alarm system is armed if the LOCK
button is pressed a second time within 5 seconds.
If one of the switches is misadjusted or shorted
internally, or there is a short in the circuit, the security
system will not arm. As long as the control unit
continues to receive a ground signal (0 V), it senses that
the vehicle is not closed and locked, and the system will
not arm. A switch that is slightly misadjusted can cause
the alarm to sound for no apparent reason. In this case,
a significant change in outside air temperature, the
vibration of a passing truck, or someone bumping into
the vehicle could cause the alarm to sound. There is no
glass breakage or motion detector feature.
If anything is opened or improperly unlocked after the
system is armed, the control unit receives a ground
signal from that switch, and the 10 to 12 V reference
drops to 0 V. If the audio unit or navigation unit (if
equipped) is disconnected, the input loses its ground,
and the input voltage goes to 10 to 12 V. The system
sounds the alarm when any of these occur:
• A door or the trunk lid is forced open.
• A door is unlocked without using the key or the
transmitter.
• The hood is opened.
• The audio unit or navigation unit (if equipped) is
disconnected.
• The transmitter PANIC button is pressed.
When the system sounds the alarm, the horn sounds
and the exterior lights flash for 2 minutes. The alarm
can be stopped at any time by unlocking the driver's
door with the key or by pressing any button on the
transmitter.
Keyless Entry System
The keyless entry system is integrated with the
multiplex integrated control system. The multiplex
integrated control unit (MICU) receives LOCK, UNLOCK,
and PANIC signals from the immobilizer-keyless control
unit (keyless receiver).
The keyless entry system allows you to lock and unlock
the vehicle with the transmitter. When you press the
LOCK button, all doors lock. When you press the
UNLOCK button once, only the driver's door unlocks.
The other doors will unlock when you press the button
a second time. The doors will not lock with the
transmitter if a door is not fully closed, or if the key is in
the ignition switch.
When the switch for the ceiling light is in the center
(DOOR) position, it will come on when the UNLOCK
button is pressed. If a door is not opened, the light will
go off and the doors will relock in about 30 seconds. If
the doors are locked with the transmitter within 30
seconds, the light will go off immediately.
Panic Mode
The panic mode sounds the alarm in order to attract
attention. When the PANIC button on the transmitter is
pressed and held for 2 seconds, the horn sounds and
the exterior lights flash for about 20 seconds.
The panic mode can be cancelled at anytime by
pressing any button on the transmitter or by turning the
ignition switch ON (II). The panic mode will not function
if the ignition switch is ON (II).
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