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.
2011 Hyundai Azera GLSFACTORY OEM SERVICE PROCEDURE
Automatic Headlamp Leveling System
AUTOMATIC HEADLAMP LEVELING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC C1212 | Vehicle Speed Sensor |
| DTC C1255 | Height Sensor - Rear Right |
| DTC C1522 | Head Lamp Light Signal Line Open |
| DTC C1604 | ECU Hardware Error |
| DTC C1606 | ECU Software Error |
| DTC C1620 | First Setup Not Completed |
| DTC C1621 | Excessive Operating Temperature |
| 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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