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.
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HOMESERVICE MANUALSHYUNDAI2003TIBURON L4-2.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULETESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSFLASHER FUNCTION
2003 Hyundai Tiburon L4-2.0L
Flasher Function
2003 Hyundai Tiburon L4-2.0LSECTION Flasher Function
FLASHER
1. Function explanation It works at battery(B+) state when hazard switch turns on, and works at IGN state when turn signal lamp turns on.
When the bulb burnt, hazard lamp blinks with the same interval, but turn signal lamp (left/right) blinks quickly.
2. Related schematic diagrams
- See the Turn & Hazard Lamps.
3. Input/output signal
- Fuse F07 (10 A)
- Input Hazard switch (H18), left turn signal switch (H13), right turn signal switch (H3)
- Output Left turn signal lamp (C9,17,F13) Right turn signal lamp (C5,I9,F17)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
1. Select "02 FLASH" Press [ENTER] then following screen will be displayed.
Check BCM input/output state against left turn signal lamp switch, right turn signal lamp switch, left turn signal lamp, right turn signal lamp and hazard lamp switch.
2. Actuator inspection
1. Select "01 INPUT ACTUATION and then press [ENTER].
Perform forced drive against hazard lamp switch, left turn signal lamp switch, right turn signal lamp switch.
2. Select "02 OUTPUT ACTUATION" and then press [ENTER].
Perform forced drive against left turn signal lamp, right turn signal lamp.
5. Expected failure symptoms
1. Hazard lamps do not work.
2. Right turn signal lamp does not work.
3. Left turn signal lamp does not work.
4. It blinks quickly. (When the bulb is not burnt).
5. One turn signal lamp does not work.
6. Actions by the failure symptoms
1. Hazard lamp does not work.
2. Right turn signal lamp does not work.
3. Right turn signal lamp does not work.
4. It blinks quickly (When bulb is not burnt).
5. One turn signal lamp does not work.
1. Function explanation It works at battery(B+) state when hazard switch turns on, and works at IGN state when turn signal lamp turns on.
When the bulb burnt, hazard lamp blinks with the same interval, but turn signal lamp (left/right) blinks quickly.
2. Related schematic diagrams
- See the Turn & Hazard Lamps.
3. Input/output signal
- Fuse F07 (10 A)
- Input Hazard switch (H18), left turn signal switch (H13), right turn signal switch (H3)
- Output Left turn signal lamp (C9,17,F13) Right turn signal lamp (C5,I9,F17)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
1. Select "02 FLASH" Press [ENTER] then following screen will be displayed.
Check BCM input/output state against left turn signal lamp switch, right turn signal lamp switch, left turn signal lamp, right turn signal lamp and hazard lamp switch.
2. Actuator inspection
1. Select "01 INPUT ACTUATION and then press [ENTER].
Perform forced drive against hazard lamp switch, left turn signal lamp switch, right turn signal lamp switch.
2. Select "02 OUTPUT ACTUATION" and then press [ENTER].
Perform forced drive against left turn signal lamp, right turn signal lamp.
5. Expected failure symptoms
1. Hazard lamps do not work.
2. Right turn signal lamp does not work.
3. Left turn signal lamp does not work.
4. It blinks quickly. (When the bulb is not burnt).
5. One turn signal lamp does not work.
6. Actions by the failure symptoms
1. Hazard lamp does not work.
2. Right turn signal lamp does not work.
3. Right turn signal lamp does not work.
4. It blinks quickly (When bulb is not burnt).
5. One turn signal lamp does not work.
RENDER: 1.0x
NO RELATED
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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.