Kia 2004.5 Spectra Service Technical Training page 311

2004.5 Spectra Technology
SYSTEM OPERATION
Body Electrical
All Kia 2004 model year vehicles sold in North America
have either a BCM or ETACS incorporated into the
body electrical system.
2004 Vehicles:
Rio
Spectra 2004.5
Optima
Sedona
Sorento
Amanti
Most of Kia's vehicles use an ETACS unit to control
time and alarm related electrical devices on the
vehicle. Amanti is the only Kia to use a Body control
Module (BCM) to control time and alarm systems and
components.
Accessories controlled by the ETACS normally vary by
vehicle trim levels. Refer to Kia Service Information
System (KSIS) for more information on each Kia
vehicle's ETACS and the systems and components
within its control.
ETACS
The 2004.5 Spectra's Electronic Timing & Alarm
Control System (ETACS) centralizes the control and
timing functions of electrical accessory systems. While
this approach simplifies the wiring of multiple comfort,
convenience, and security features, it also allows these
features to interact with one another to increase their
functionality and convenience.
The ETACS is an input to output controller that is
controlled by the logic programmed into the ETACS
Control Module. This logic program determines which
inputs, such as switch closures or openings, will cause
an action in one or more electrical systems. An action
BCM: ETACS:
No Yes
No Yes
No Yes
No Yes
No Yes
Yes No
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