Chrysler Conquest 1988 Service Manual page 297

ETACS
- Theft-alarm Svstem
8-285
THEFT-ALARM SYSTEM
NOL?QNAB
OUTLINE
When the theft-alarm system has been armed by a fixed sequence for locking the doors, if thereafter any
door, the rear hatch or the hood is opened in an unauthorized way, the horn will sound intermittently for a
period of approximately three minutes, and, at the same time, the headlights will flash on and off, thus
providing audible and visual warning signals.
Furthermore, the starter circuit is interrupted in such a way that the engine cannot be started, if the ignition
key is not used. Note that this system is controlled by the electronic cpntrol unit (ECU) as one function of the
ETACS.
This ECU includes an independent (separate from the control of the other ETACS functions) microcomputer
for the exclusive use of the theft-alarm system. This microcomputer arms, disarms, activates and deactivates
the alarm system.
The system is composed of the components described below.
Hood
Ignition switch
SECURITY light
Door key cylinder I unlock
\ I
switch (L.H: and I R.H.)
Rear hatch
Head jigi-
/
zh
.) (L.H. and R.H
16Y3572
Input
output
Ignition switch
(ACC or ON)
Door switch (left and
right)
Door
lock actuator switch
(All doors)
Door switch (All doors)
Hood switch
Rear hatch switch
w
Armed or disarmed condi-
SECURITY light Indicates armed condition.
tion
I
Armed or activated condi-
Horn relay
Activates theft-alarm horn
tion when activated.
Armed or disarmed condi-
Passing relay
When activated, this relay
tion
activates the passing control
relay for raising the headlights,
activates the headlight relay,
and turns on the headlights.
Armed or activated condi-
tion
Starter inhibitor relay Opens starter circuit, making
starting impossible, when
activated.
Activated condition