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.
Ignition Key Hole Illumination Function
2003 Hyundai Tiburon L4-2.0LSECTION Ignition Key Hole Illumination Function
IGNITION KEY HOLE ILLUMINATION
1. Function explanation When driver's side door is opened and closed ignition key hole illumination turns on for 10 seconds so that the driver can insert the key.
2. Related schematic diagrams
- See the Immobilizer Control System.
3. Input/output signal
- Fuse F18 (10 A)
- Input Driver's side door switch (E9), Passenger's side door switch (E4)
- Output Key hole illumination (J3)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
Select "04 DOOR" and press [ENTER] Then the following screen will be displayed.
Check BCM output condition against key hole illumination.
2. Actuator inspection
Select "02.OUTPUT ACTUATION" and press [ENTER].
Perform forced drive against key hole illumination.
5. Expected failure symptoms
Key hole illumination does not work.
6. Actions by failure symptoms Key hole illumination does not work.
1. Function explanation When driver's side door is opened and closed ignition key hole illumination turns on for 10 seconds so that the driver can insert the key.
2. Related schematic diagrams
- See the Immobilizer Control System.
3. Input/output signal
- Fuse F18 (10 A)
- Input Driver's side door switch (E9), Passenger's side door switch (E4)
- Output Key hole illumination (J3)
4. Related Hi-scan(pro) failure diagnosis
1. Input/output monitoring
Select "04 DOOR" and press [ENTER] Then the following screen will be displayed.
Check BCM output condition against key hole illumination.
2. Actuator inspection
Select "02.OUTPUT ACTUATION" and press [ENTER].
Perform forced drive against key hole illumination.
5. Expected failure symptoms
Key hole illumination does not work.
6. Actions by failure symptoms Key hole illumination does not work.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.