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.
Tail Lamp Automatic Turn Off Function
2003 Hyundai Tiburon V6-2.7LSECTION Tail Lamp Automatic Turn Off Function
TAIL LAMP AUTOMATIC TURN OFF
1. Function explanation Remove key at the tail lamp on state & Tail lamp turns off automatically when the driver's door is opened. So, Battery discharging is prevented by turning the tail lamp off.
2. Related schematic diagrams
- See the Tail, Parking & License Lamps.
3. Input/output signa
- Fuse F9 (10 A), F14 (10 A)
- Input : Driver's side door switch (E9), Tail lamp switch (H5), Door warning switch (H4)
- Output Tail lamp (C10, C11, F5, F10, J5, J15)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
1. Select "01.POWER" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against door warning switch.
2. Select "03.LAMP" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against tail lamp switch and tail lamp.
3. Select "04.DOOR" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against driver's side door switch.
2. Actuator inspection
1. Select "01.INPUT ACTUATION" and press [ENTER].
Perform forced drive against tail lamp switch.
2. Select "02.0UTPUT ACTUATION" and press [ENTER].
Perform forced drive against tail lamp.
5. Expected failure symptoms
1. Tail lamp does not work
2. Left tail lamp only does not work
3. Right tail lamp only does not work.
4. External tail lamp works, but internal tail lamp does not
5. Only one tail lamp does not work.
6. Tail lamp automatic turn off function does not work.
6. Actions by the failure symptoms
1. Tail lamp does not work.
2. Left tail lamp only does not work.
=> Fuse F(14) short check
3. Right tail lamp only does not work.
=> Fuse F(9) short check
4. External tail lamp works but internal tail lamp does not.
5. One tail lamp only does not work.
=> Check related wire bulb burnt
6. Tail lamp automatic turn off function does not work.
1. Function explanation Remove key at the tail lamp on state & Tail lamp turns off automatically when the driver's door is opened. So, Battery discharging is prevented by turning the tail lamp off.
2. Related schematic diagrams
- See the Tail, Parking & License Lamps.
3. Input/output signa
- Fuse F9 (10 A), F14 (10 A)
- Input : Driver's side door switch (E9), Tail lamp switch (H5), Door warning switch (H4)
- Output Tail lamp (C10, C11, F5, F10, J5, J15)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
1. Select "01.POWER" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against door warning switch.
2. Select "03.LAMP" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against tail lamp switch and tail lamp.
3. Select "04.DOOR" and press [ENTER]. Then, the following screen will be displayed.
Check BCM input condition against driver's side door switch.
2. Actuator inspection
1. Select "01.INPUT ACTUATION" and press [ENTER].
Perform forced drive against tail lamp switch.
2. Select "02.0UTPUT ACTUATION" and press [ENTER].
Perform forced drive against tail lamp.
5. Expected failure symptoms
1. Tail lamp does not work
2. Left tail lamp only does not work
3. Right tail lamp only does not work.
4. External tail lamp works, but internal tail lamp does not
5. Only one tail lamp does not work.
6. Tail lamp automatic turn off function does not work.
6. Actions by the failure symptoms
1. Tail lamp does not work.
2. Left tail lamp only does not work.
=> Fuse F(14) short check
3. Right tail lamp only does not work.
=> Fuse F(9) short check
4. External tail lamp works but internal tail lamp does not.
5. One tail lamp only does not work.
=> Check related wire bulb burnt
6. Tail lamp automatic turn off function 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.