Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Kia Optima L4-2.4LFACTORY OEM SERVICE PROCEDURE
ETACS Function
ELECTRONIC TIME AND ALARM CONTROL SYSTEM
OPERATION CHECK OF COMPONENTS
While operating the components, check whether the operations are normal with timing chart.
ETACS FUNCTION
1. Variable intermittent wiper
Time specification
T(1) : Max. 0.3 sec.
T(2) : Time of wiper motor 1 rotation (0.6 - 0.8 sec.).
T(3) : 2.2 ± 0.2 sec. (VR = 0 kohm) - 10.0 ± 1.0 sec. (VR = 50 kohm)
2. Washer
1. Time specification
T(1) : 0.3 sec
T(2) : 2.5 - 3.8 sec.
2. This function should be operated preferentially even though the variable intermittent wiper is operating.
3. Rear window defogger
Time specification
T 1 : 60 msec.
T 1 : 20 ± 1 Min.
4. Seat belt warning
Time specification
T(1) : 6 ± 1 sec.
T(2) : 0.45 ± 0.1 sec.
T(3) : 0.3 ± 0.1 sec.
5. Ignition key hole illumination
Time specification
T(1) : 10 ± 1.0 sec.
T(2) : 0 - 10 sec.
6. Delayed out room lamp
Time specification
T(1) : 5.5 ± 0.5 sec.
7. Key operated warning
Time specification
T(1), T(2) : 0.45 ± 0.1 sec.
8. Ignition key reminder
Time specification
T(1) : 0.5 sec.
T(2) : 0 - 0.5 sec.
9. Outside Door key illumination (Without burglar alarm)
Time specification
T(1) : 10 ± 1.0 sec.
10. Power window timer
Time specification
T(1) : 30 ± 3 Sec.
11. Central door lock/unlock (without burglar alarm)
Time specification
T : 0.5 ± 0.1 sec.
12. Central door lock/unlock (with burglar alarm)
1. When using the door key Time specification
T : 0.5 ± 0.1 sec.
2. When using the door lock switch
Time specification
T : 0.5 ± 0.1 sec.
3. When using the transmitter (TX)
Time specification
T : 0.5 ± 0.1 sec.
13. Tail lamp auto cut
14. Rear fog lamp control
OPERATION CHECK OF COMPONENTS
While operating the components, check whether the operations are normal with timing chart.
ETACS FUNCTION
1. Variable intermittent wiper
Time specification
T(1) : Max. 0.3 sec.
T(2) : Time of wiper motor 1 rotation (0.6 - 0.8 sec.).
T(3) : 2.2 ± 0.2 sec. (VR = 0 kohm) - 10.0 ± 1.0 sec. (VR = 50 kohm)
2. Washer
1. Time specification
T(1) : 0.3 sec
T(2) : 2.5 - 3.8 sec.
2. This function should be operated preferentially even though the variable intermittent wiper is operating.
3. Rear window defogger
Time specification
T 1 : 60 msec.
T 1 : 20 ± 1 Min.
4. Seat belt warning
Time specification
T(1) : 6 ± 1 sec.
T(2) : 0.45 ± 0.1 sec.
T(3) : 0.3 ± 0.1 sec.
5. Ignition key hole illumination
Time specification
T(1) : 10 ± 1.0 sec.
T(2) : 0 - 10 sec.
6. Delayed out room lamp
Time specification
T(1) : 5.5 ± 0.5 sec.
7. Key operated warning
Time specification
T(1), T(2) : 0.45 ± 0.1 sec.
8. Ignition key reminder
Time specification
T(1) : 0.5 sec.
T(2) : 0 - 0.5 sec.
9. Outside Door key illumination (Without burglar alarm)
Time specification
T(1) : 10 ± 1.0 sec.
10. Power window timer
Time specification
T(1) : 30 ± 3 Sec.
11. Central door lock/unlock (without burglar alarm)
Time specification
T : 0.5 ± 0.1 sec.
12. Central door lock/unlock (with burglar alarm)
1. When using the door key Time specification
T : 0.5 ± 0.1 sec.
2. When using the door lock switch
Time specification
T : 0.5 ± 0.1 sec.
3. When using the transmitter (TX)
Time specification
T : 0.5 ± 0.1 sec.
13. Tail lamp auto cut
14. Rear fog lamp control
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.