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.
2013 Hyundai AzeraFACTORY OEM SERVICE PROCEDURE
Audio/Video/Navigation (AVN) System: Troubleshooting
| Symptom | Suspected area | Repairment |
|---|---|---|
| Pressing power switch does not turn on system | AVN head unit receiver power source circuit | R-2 |
| AVN monitor | R-15 | |
| Panel switch does not function | Steering pad switch circuit | R-3 |
| AVN H/U front PCB assembly | R-1 | |
| AVN head unit receiver power source circuit | R-2 | |
| No sound can be heard from speakers | AVN head unit receiver power source circuit | R-2 |
| EXT. AMP I/F | R-4 | |
| R-6 | ||
| R-7 | ||
| EXT. AMP power source | R-5 | |
| Check the wiring between speakers and AVN head unit | R-8 | |
| Noise occurs | Proceed to "noise occurs" | R-14 |
| AVN head unit broadcast cannot be received | Proceed to "AVN HEAD UNIT broadcast cannot be received (poor reception)" | R-9 |
| Disc cannot be inserted or is ejected right after insertion | Disc cannot be inserted or is ejected right after insertion | R-10 |
| Disc cannot be ejected. | AVN head unit receiver power source circuit | R-2 |
| Illumination for AVN head unit receiver does not come on whth light | Illumination circuit | R-11 |
| control switch on. | AVN head unit receiver power source circuit | R-2 |
| Display does not dim with light control switch turned on | Illumination circuit | R-11 |
| Power does not turn off | AVN head unit | R-1 |
| BLUETOOTH voice recognition fault | AVN head unit | R-1 |
| MIC input | R-12 | |
| USB I/F error | AVN head unit | R-1 |
| USB device fault | R-13 | |
| Check the multimedia connector | R-13 | |
| iPod I/F error | AVN head unit | R-1 |
| iPod fault | R-13 | |
| Check the multimedia connector | R-13 | |
| AUX connection error | AVN head unit | R-1 |
| Check the multimedia connector | R-13 | |
| AVN monitor error | AVN monitor unit | R-15 |
| AVN monitor unit receiver power source circuit | R-16 |
- R-1: Replace the AVN head unit
- Check the same problems after replacing the AVN head unit
OK
- If AVN is normal operating, replace the AVN head unit
NG
- Check the vehicle wiring. (Refer to removal procedure. R-2)
- Check the same problems after replacing the AVN head unit
- R-2: Check the power connection of AVN head unit.
- R-3: Check the steering wheel remote control
- Check the steering wheel remote control connector specification (Refer to "Inspection ")
OK
- Replace the AVN head unit. (Refer to R-1)
NG
- Replace the steering wheel remote control switch.
- Check the steering wheel remote control connector specification (Refer to "Inspection ")
- R-4: Replace the external amplifier
- R-5: Check the external amplifier power cable
- R-6: Check the external amplifier CAN interface
- Remove the AVN head Unit.
- Remove the external amplifier
- Check the specified condition of terminal.
Factory Service Tools
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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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