Electronic Time and Alarm Control System (ETACS)

GENERAL INFORMATION

ETACS*-ECU has three main functions (gateway function, coding function and body electrical equipment control function).
NOTE:
*: ETACS (Electronic Time and Alarm Control System)

GATEWAY FUNCTION





As a central ECU for the on-vehicle communication network system established in the vehicle, the gateway function is integrated into ETACS-ECU. The gateway function offers the following functions:

- Data transfer among four networks*
Transfers the data flowing in a network to another network in real time.
NOTE:
*: CAN-C (power train network), CAN-B (middle-speed body network), LIN (low-speed body network), diagnostics CAN-C (diagnosis exclusive network)

- Diagnosis of each network communication line
Detects and stores an open circuit and short circuit of communication line.
- Communication error diagnosis of network ECUs
Detects and stores the ECU that is not properly transmitting data.

CODING FUNCTION

By writing the coding data such as vehicle model, destination, and equipment level to ECUs, the functions of ECUs can be changed. There are two types of coding method, the local coding and global coding.

BODY ELECTRICAL EQUIPMENT CONTROL FUNCTION

This function controls the following electrical equipment.

- Exterior lights
- Wiper, washer
- Central door locking system
- Interior light
- Keyless entry, keyless operation system
- Theft alarm system