Section 18 (Lighting System): Troubleshooting
WARNING: This page is about a different car, the 2012 Hyundai Veloster. However, it is still accessible from the selected car via links, so may be relevant.
- The lamp switch inputs can be checked using the GDS.
- To check the input value of lamp switch, select option "IPM".
- To consult the present input/output value of IPM, "Current DATA". It provides information of IPM input/output conditions of power supply, turn signal/brake lamp, headlamp, door, locks, outside mirror, wiper, auto-light and transmitters etc.
- To check the input value of lamp switch in force mode, select option "Actuation Test".
| Symptom | Possible cause | Remedy |
|---|---|---|
| One lamp does not light (all exterior) | Bulb burned out | Replace bulb |
| Socket, wiring or ground faulty | Repair if necessary | |
| Head lamps do not light | Bulb burned out | Replace bulb |
| Ignition fuse (LOW: 10A, HIGH: 20A) blown | Check for short and replace fuse | |
| Head lamp fuse (15A) blown | Check for short and replace fuse | |
| Head lamp relay faulty | Check relay | |
| Lighting switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Tail lamps and license plate lamps do not light | Bulb burned out | Replace bulb |
| Tail lamp fuse (10A) blown | Check for short and replace fuse | |
| Tail lamp relay faulty | Check relay | |
| Lighting switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Stop lamps do not light | Bulb burned out | Replace bulb |
| Stop lamp fuse (15A) blown | Check for short and replace fuse | |
| Stop lamp switch faulty | Adjust or replace switch | |
| Wiring or ground faulty | Repair if necessary | |
| Stop lamps do not turn off | Stop lamp switch faulty | Repair or replace switch |
| Instrument lamps do not light (Tail lamps light) | Rheostat faulty | Check rheostat |
| Wiring or ground faulty | Repair if necessary | |
| Turn signal lamp does not flash on one side | Bulb burned out | Replace bulb |
| Turn signal switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Turn signal lamps do not light | Bulb burned out | Replace bulb |
| Turn signal lamp fuse (10A) blown | Check for short and replace fuse | |
| Flasher unit faulty | Check flasher unit | |
| Turn signal switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Hazard warning lamps do not light | Bulb burned out | Replace bulb |
| Hazard warning lamp fuse (15A) blown | Check for short and replace fuse | |
| Flasher unit faulty | Check flasher unit | |
| Hazard switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Flasher rate too slow or too fast | Light bulbs' wattages are smaller or larger than specified | Replace light bulbs |
| Flasher unit faulty | Check flasher unit | |
| Back up lamps do not light | Bulb burned out | Replace bulb |
| Back up lamp fuse (10A) blown | Check for short and replace fuse | |
| Back up lamp switch (M/T) faulty | Check switch | |
| Transaxle range switch (A/T) faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary | |
| Room lamp does not light | Bulb burned out | Replace bulb |
| Room lamp fuse (10A) blown | Check for short and replace fuse | |
| Room lamp switch faulty | Check switch | |
| Wiring or ground faulty | Repair if necessary |