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.
2012 Hyundai AzeraFACTORY OEM SERVICE PROCEDURE
Automatic Headlamp Leveling System DTCS
AUTOMATIC HEADLAMP LEVELING SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description |
|---|---|
| DTC C1212 | Vehicle Speed Sensor Failure |
| DTC C1255 | Rear Height Sensor |
| DTC C1367 | Internal Signal Not Plausible |
| DTC C1522 | Head lamp Switch Fault |
| DTC C1604 | ECU Fault |
| DTC C1606 | ECU Software Error |
| DTC C1620 | First Setup Not Completed |
| DTC C2226 | Output Voltage Short to Battery or Short to Ground |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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